# arcgis.raster module¶

The arcgis.raster module containing classes and raster analysis functions for working with raster data and imagery layers.

Raster data is made up of a grid of cells, where each cell or pixel can have a value. Raster data is useful for storing data that varies continuously, as in a satellite image, a surface of chemical concentrations, or an elevation surface.

Use arcgis.raster.analytics.is_supported(gis) to check if raster analysis is supported in your GIS.

## ImageryLayer¶

class arcgis.raster.ImageryLayer(url, gis=None)

The ImageryLayer class can be used to represent an image service resource as a layer. An ImageryLayer object retrieves and displays data from image services. ImageryLayer allows you to and apply server defined or client-defined raster functions (e.g. remap, colormap), and mosaic rules.

ImageryLayer objects can also be created using raster datasets or raster products present in datastore registered with the server/active GIS (types: fileShares, cloudStores, rasterStores). To learn more about datastores, visit think link.

Usage: arcgis.raster.ImageryLayer(url, gis=gis)

 Argument Description url Required string. The input raster path Example: url = “/fileShares/file_share_name/path/to/raster” url = “/cloudStores/cloud_store_name/path/to/raster” Note: When working with datastore rasters or non image service urls, RasterRendering service should be enabled in the active GIS connection gis Optional. GIS of the ImageryLayer object.
# Example Usage

# Imagery layer items are available as content in the GIS. Items can be searched using gis.content.search()
# This snippet creates an imagery layer using the 'layers' property of the searched Imagery Layer Item
img_lyr = gis.content.search("my_image_service", item_type="Imagery Layer")[0].layers[0]

# Create an imagery layer from an image service url
img_lyr = ImageryLayer("https://myserver/arcgis/rest/services/ImageServiceName/ImageServer", gis=gis)

# Create an imagery layer from a .tif file present in user's registered fileShare datastore
# (Requires RasterRendering service to be enabled in the active GIS)
img_lyr = ImageryLayer("/fileShares/data/Amberg.tif", gis=gis)

# Create an imagery layer from a publicly accesible Cloud-Optimized GeoTIFF
# (Requires RasterRendering service to be enabled in the active GIS)
img_lyr = ImageryLayer("https://sentinel-cogs.s3.us-west-2.amazonaws.com/sentinel-s2-l2a-cogs/43/M/BP/2021/6/S2A_43MBP_20210622_0_L2A/B08.tif",
gis=gis)

# Overlay an imagery layer on the 'MapView' widget
map = gis.map()

attribute_table(rendering_rule=None)

The attribute_table method returns categorical mapping of pixel values (for example, a class, group, category, or membership).

 Arguments Description rendering_rule Specifies the rendering rule for how the requested image should be processed. The response is updated Layer info that reflects a custom processing as defined by the rendering rule. For example, if renderingRule contains an attributeTable function, the response will indicate “hasRasterAttributeTable”: true; if the renderingRule contains functions that alter the number of bands, the response will indicate a correct bandCount value.
Returns

dictionary

property band_count

returns the band count of the imagery layer

blend()

overlapping pixels at the same location are resolved by blending all overlapping pixels

Returns

this imagery layer with mosaic operation set to ‘blend’

property cache_manager

Returns

ImageryLayerCacheManager or None

calculate_volume(geometries, base_type=None, mosaic_rule=None, constant_z=None, pixel_size=None)

Performs volumetric calculation on an elevation service. Results are always in square meters (area) and cubic meters (volume). If a service does not have vertical spatial reference and z unit is not in meters, user needs to apply a conversion factor when interpreting results.

Available in 10.7+ only

 Argument Description geometries required a list of Polygon geometry objects or a list of envelope geometry objects. A geometry that defines the geometry within which the volume is computed. The geometry can be an envelope or a polygon base_type optional integer. 0 - constant z; 1 - best fitting plane; 2 - lowest elevation on the perimeter; 3 - highest elevation on the perimeter; 4 - average elevation on the perimeter mosaic_rule Optional dictionary. Used to select different DEMs in a mosaic dataset constant_z Optional integer. parameter to specify constant z value pixel_size Optional string or dictionary. Defines the spatial resolution at which volume calculation is performed Syntax: dictionary structure: pixel_size={point} Point simple syntax: pixel_size=’,’ Examples: pixel_size={“x”: 0.18, “y”: 0.18} pixel_size=’0.18,0.18’
Returns

dictionary showing volume values for each geometry in the input geometries array

catalog_item(id)

catalog_item() returns a single raster catalog item associated with the specified id

 Arguments Description id required integer. The id is the ‘raster id’.
Returns

Raster Catalog Item associated with the id

colormap(rendering_rule=None, variable=None)

The colormap method returns RGB color representation of pixel values. This method is supported if the hasColormap property of the layer is true.

 Argument Description rendering_rule optional dictionary. Specifies the rendering rule for how the requested image should be rendered. See the raster function objects for the JSON syntax and examples: https://developers.arcgis.com/documentation/common-data-types/raster-function-objects.htm variable Optional String. This parameter can be used to request a colormap for each variable for an image service that has multidimensional information. It will return a colormap for the whole image service if not specified. Eligible variable names can be queried from multidimensional_info property of the Imagery Layer object. This parameter is available from 10.8.1
Returns

dictionary

property columns

returns number of columns in the imagery layer

compute_class_stats(descriptions, mosaic_rule='defaultMosaicMethod', rendering_rule=None, pixel_size=None)

Compute class statistics signatures (used by the maximum likelihood classifier)

 Argument Description descriptions Required list. Class descriptions are training site polygons and their class descriptions. The structure of the geometry is the same as the structure of the JSON geometry objects returned by the ArcGIS REST API. Syntax { “classes”: [ // An list of classes { “id” : , “name” : “”, “geometry” : //polygon }, { “id” : , “name” : “”, “geometry” : //polygon } … ] } mosaic_rule optional string. Specifies the mosaic rule when defining how individual images should be mosaicked. When a mosaic rule is not specified, the default mosaic rule of the image layer will be used (as advertised in the root resource: defaultMosaicMethod, mosaicOperator, sortField, sortValue). See Mosaic rule objects help for more information: https://developers.arcgis.com/documentation/common-data-types/mosaic-rules.htm rendering_rule optional dictionary. Specifies the rendering rule for how the requested image should be rendered. See the raster function objects for the JSON syntax and examples: https://developers.arcgis.com/documentation/common-data-types/raster-function-objects.htm pixel_size optional string or dictionary. The pixel level being used (or the resolution being looked at). If pixel size is not specified, then pixel_size will default to the base resolution of the dataset. The structure of the pixel_size parameter is the same as the structure of the point object returned by the ArcGIS REST API. In addition to the dictionary structure, you can specify the pixel size with a comma-separated syntax. Syntax: dictionary structure: pixel_size={point} Point simple syntax: pixel_size=’,’ Examples: pixel_size={“x”: 0.18, “y”: 0.18} pixel_size=’0.18,0.18’
Returns

dictionary

compute_histograms(geometry, mosaic_rule=None, rendering_rule=None, pixel_size=None, time=None, process_as_multidimensional=False)

The result of this operation is an array of histograms for all raster bands computed for the imagery layer from the given extent

 Arguments Description geometry required Polygon or Extent. A geometry that defines the geometry within which the histogram is computed. The geometry can be an envelope or a polygon mosaic_rule optional string. Specifies the mosaic rule when defining how individual images should be mosaicked. When a mosaic rule is not specified, the default mosaic rule of the image layer will be used (as advertised in the root resource: defaultMosaicMethod, mosaicOperator, sortField, sortValue). See Mosaic rule objects help for more information: https://developers.arcgis.com/documentation/common-data-types/mosaic-rules.htm rendering_rule Specifies the rendering rule for how the requested image should be processed. The response is updated Layer info that reflects a custom processing as defined by the rendering rule. For example, if renderingRule contains an attributeTable function, the response will indicate “hasRasterAttributeTable”: true; if the renderingRule contains functions that alter the number of bands, the response will indicate a correct bandCount value. pixel_size optional string or dictionary. The pixel level being used (or the resolution being looked at). If pixel size is not specified, then pixel_size will default to the base resolution of the dataset. The structure of the pixel_size parameter is the same as the structure of the point object returned by the ArcGIS REST API. In addition to the dictionary structure, you can specify the pixel size with a comma-separated string. Syntax: dictionary structure: pixel_size={point} Point simple syntax: pixel_size=’,’ Examples: pixel_size={“x”: 0.18, “y”: 0.18} pixel_size=’0.18,0.18’ time optional datetime.date, datetime.datetime or timestamp string. The time instant or the time extent of the exported image. Time instant specified as datetime.date, datetime.datetime or timestamp in milliseconds since epoch Syntax: time= Time extent specified as list of [, ] For time extents one of or could be None. A None value specified for start time or end time will represent infinity for start or end time respectively. Syntax: time=[, ] ; specified as datetime.date, datetime.datetime or timestamp Added at 10.8 process_as_multidimensional optional boolean. Specifies whether to process the image service as a multidimensional image service. False - The histogram of pixel values from only the first slice is computed. This is the default. True - The image service is treated as a multidimensional raster, and histograms of pixel values from all selected slices are computed. Added at 10.9 for image services which use ArcObjects11 or ArcObjectsRasterRendering as the service provider.
Returns

dict

# Usage Example 1: Compute the histograms in the specified area of interest for a time instant.

aoi = {
"spatialReference": {"wkid": 32610},
"xmax": 725000,
"xmin": 720000,
"ymax": 4300000,
"ymin": 4250000,
}

aoi_geometry = Geometry(aoi)

comp_hist_01 = img_lyr.compute_histograms(geometry=aoi,
rendering_rule={"rasterFunction":None},
time="1326650400000")

# Usage Example 2: Compute the histograms in the specified area of interest for a time extent.

aoi = {
"spatialReference": {"wkid": 32610},
"xmax": 725000,
"xmin": 720000,
"ymax": 4300000,
"ymin": 4250000,
}

aoi_geometry = Geometry(aoi)

# If the datetime object is not in the UTC timezone, the API will internally convert it to the UTC timezone.
start = datetime.datetime(2012,1,15,18,0,0, tzinfo=datetime.timezone.utc)
end = datetime.datetime(2012,1,15,21,0,0, tzinfo=datetime.timezone.utc)

comp_hist_02 = img_lyr.compute_histograms(geometry=aoi,
rendering_rule={"rasterFunction":None},
time=[start, end])

compute_pixel_location(raster_id, geometries, spatial_reference)

With given input geometries, it calculates corresponding pixel location in column and row on specific raster catalog item. A prerequisite is that the raster catalog item has valid icsToPixel resource.

 Arguments Description raster_id required integer. Specifies the objectId of image service’s raster catalog. This integer rasterId number will determine which raster’s image coordinate system will be used during the calculation and which raster does the column and row of results represent. geometries The array of geometries for computing pixel locations. All geometries in this array should be of the type defined by geometryType. spatial_reference required string, dictionary, This specifies the spatial reference of the Geometries parameter above. It can accept a multitudes of values. These can be a WKID, image coordinate system (ICSID), or image coordinate system in json/dict format. Additionally the arcgis.geometry.SpatialReference object is also a valid entry. Note An image coordinate system ID can be specified using 0:icsid; for example, 0:64. The extra 0: is used to avoid conflicts with wkid
Returns

dictionary, The result of this operation includes x and y values for the column and row of each input geometry. It also includes a z value for the height at given location based on elevation info that the catalog raster item has.

compute_stats_and_histograms(geometry, mosaic_rule=None, rendering_rule=None, pixel_size=None, time=None, process_as_multidimensional=False)

The result of this operation contains both statistics and histograms computed for the imagery layer from the given extent.

 Argument Description geometry required Polygon or Extent. A geometry that defines the geometry within which the histogram is computed. The geometry can be an envelope or a polygon mosaic_rule optional dictionary. Specifies the mosaic rule when defining how individual images should be mosaicked. When a mosaic rule is not specified, the default mosaic rule of the image layer will be used (as advertised in the root resource: defaultMosaicMethod, mosaicOperator, sortField, sortValue). rendering_rule optional dictionary. Specifies the rendering rule for how the requested image should be rendered. pixel_size optional string or dict. The pixel level being used (or the resolution being looked at). If pixel size is not specified, then pixel_size will default to the base resolution of the dataset. The raster at the specified pixel size in the mosaic dataset will be used for histogram calculation. Syntax: dictionary structure: pixel_size={point} Point simple syntax: pixel_size=’,’ Examples: pixel_size={“x”: 0.18, “y”: 0.18} pixel_size=’0.18,0.18’ time optional datetime.date, datetime.datetime or timestamp string. The time instant or the time extent of the exported image. Time instant specified as datetime.date, datetime.datetime or timestamp in milliseconds since epoch Syntax: time= Time extent specified as list of [, ] For time extents one of or could be None. A None value specified for start time or end time will represent infinity for start or end time respectively. Syntax: time=[, ] ; specified as datetime.date, datetime.datetime or timestamp Added at 10.8 process_as_multidimensional optional boolean. Specifies whether to process the image service as a multidimensional image service. False - Statistics and histograms of pixel values from only the first slice is computed. This is the default. True - The image service is treated as a multidimensional raster, and statistics and histograms of pixel values from all selected slices are computed. Added at 10.9 for image services which use ArcObjects11 or ArcObjectsRasterRendering as the service provider.
Returns

dictionary

# Usage Example 1: Compute the stats and histograms in the specified area of interest for a time instant.

aoi = {
"spatialReference": {"wkid": 32610},
"xmax": 725000,
"xmin": 720000,
"ymax": 4300000,
"ymin": 4250000,
}

aoi_geometry = Geometry(aoi)

comp_stats_hist_01 = img_lyr.compute_stats_and_histograms(geometry=aoi,
rendering_rule={"rasterFunction":None},
time="1326650400000")

# Usage Example 2: Compute the stats and histograms in the specified area of interest for a time extent.

aoi = {
"spatialReference": {"wkid": 32610},
"xmax": 725000,
"xmin": 720000,
"ymax": 4300000,
"ymin": 4250000,
}

aoi_geometry = Geometry(aoi)

# If the datetime object is not in the UTC timezone, the API will internally convert it to the UTC timezone.
start = datetime.datetime(2012,1,15,18,0,0, tzinfo=datetime.timezone.utc)
end = datetime.datetime(2012,1,15,21,0,0, tzinfo=datetime.timezone.utc)

comp_stats_hist_02 = img_lyr.compute_stats_and_histograms(geometry=aoi,
rendering_rule={"rasterFunction":None},
time=[start,end])

compute_tie_points(raster_id, geodata_transforms)

The result of this operation contains tie points that can be used to match the source image to the reference image. The reference image is configured by the image layer publisher. For more information, see Fundamentals for georeferencing a raster dataset.

 Argument Description raster_id required integer. Source raster ID. geodata_transforms required dictionary. The geodata transformation that provides a rough fit of the source image to the reference image. For example, a first order polynomial transformation that fits the source image to the expected location.
Returns

dictionary

draw_graph(show_attributes=False, graph_size='14.25, 15.25')

Displays a structural representation of the function chain and it’s raster input values. If show_attributes is set to True, then the draw_graph function also displays the attributes of all the functions in the function chain, representing the rasters in a blue rectangular box, attributes in green rectangular box and the raster function names in yellow.

 Argument Description show_attributes optional boolean. If True, the graph displayed includes all the attributes of the function and not only it’s function name and raster inputs Set to False by default, to display only he raster function name and the raster inputs to it. graph_size optional string. Maximum width and height of drawing, in inches, seperated by a comma. If only a single number is given, this is used for both the width and the height. If defined and the drawing is larger than the given size, the drawing is uniformly scaled down so that it fits within the given size.
Returns

Graph

# Usage Example: Draws the function chain applied on the ImageryLayer object created from an Image service.

imagery_layer = ImageryLayer("https://myserver/arcgis/rest/services/ImageServiceName/ImageServer", gis=gis)
grayscale_layer = grayscale(raster=imagery_layer)
invert_layer = boolean_not(rasters=[grayscale_layer])
invert_layer.draw_graph(show_attributes=True)

export_image(bbox=None, image_sr=None, bbox_sr=None, size=None, time=None, export_format='jpgpng', pixel_type=None, no_data=None, no_data_interpretation='esriNoDataMatchAny', interpolation=None, compression=None, compression_quality=None, band_ids=None, mosaic_rule=None, rendering_rule=None, f='json', save_folder=None, save_file=None, compression_tolerance=None, adjust_aspect_ratio=None, lerc_version=None, slice_id=None)

The export_image operation is performed on an imagery layer. The result of this operation is an image method. This method provides information about the exported image, such as its URL, extent, width, and height. In addition to the usual response formats of HTML and JSON, you can also request the image format while performing this operation. When you perform an export with the image format , the server responds by directly streaming the image bytes to the client. With this approach, you don’t get any information associated with the exported image other than the image itself.

 Arguments Description bbox Optional dict or string. The extent (bounding box) of the exported image. Unless the bbox_sr parameter has been specified, the bbox is assumed to be in the spatial reference of the imagery layer. The bbox should be specified as an arcgis.geometry.Envelope object, it’s json representation or as a list or string with this format: ‘, , , ’ If omitted, the extent of the imagery layer is used image_sr optional string, SpatialReference. The spatial reference of the exported image. The spatial reference can be specified as either a well-known ID, it’s json representation or as an arcgis.geometry.SpatialReference object. If the image_sr is not specified, the image will be exported in the spatial reference of the imagery layer. bbox_sr optional string, SpatialReference. The spatial reference of the bbox. The spatial reference can be specified as either a well-known ID, it’s json representation or as an arcgis.geometry.SpatialReference object. If the image_sr is not specified, bbox is assumed to be in the spatial reference of the imagery layer. size optional list. The size (width * height) of the exported image in pixels. If size is not specified, an image with a default size of 1200*450 will be exported. Syntax: list of [width, height] time optional datetime.date, datetime.datetime or timestamp string. The time instant or the time extent of the exported image. Time instant specified as datetime.date, datetime.datetime or timestamp in milliseconds since epoch Syntax: time= Time extent specified as list of [, ] For time extents one of or could be None. A None value specified for start time or end time will represent infinity for start or end time respectively. Syntax: time=[, ] ; specified as datetime.date, datetime.datetime or timestamp export_format optional string. The format of the exported image. The default format is jpgpng. The jpgpng format returns a JPG if there are no transparent pixels in the requested extent; otherwise, it returns a PNG (png32). Values: jpgpng,png,png8,png24,jpg,bmp,gif,tiff,png32,bip,bsq,lerc pixel_type optional string. The pixel type, also known as data type, pertains to the type of values stored in the raster, such as signed integer, unsigned integer, or floating point. Integers are whole numbers, whereas floating points have decimals. no_data optional float. The pixel value representing no information. no_data_interpretation optional string. Interpretation of the no_data setting. The default is NoDataMatchAny when no_data is a number, and NoDataMatchAll when no_data is a comma-delimited string: NoDataMatchAny,NoDataMatchAll. interpolation optional string. The resampling process of extrapolating the pixel values while transforming the raster dataset when it undergoes warping or when it changes coordinate space. One of: RSP_BilinearInterpolation, RSP_CubicConvolution, RSP_Majority, RSP_NearestNeighbor compression optional string. Controls how to compress the image when exporting to TIFF format: None, JPEG, LZ77. It does not control compression on other formats. compression_quality optional integer. Controls how much loss the image will be subjected to by the compression algorithm. Valid value ranges of compression quality are from 0 to 100. band_ids optional list. If there are multiple bands, you can specify a single band to export, or you can change the band combination (red, green, blue) by specifying the band number. Band number is 0 based. Specified as list of ints, eg [2,1,0] mosaic_rule optional dict. Specifies the mosaic rule when defining how individual images should be mosaicked. When a mosaic rule is not specified, the default mosaic rule of the image layer will be used (as advertised in the root resource: defaultMosaicMethod, mosaicOperator, sortField, sortValue). rendering_rule optional dict. Specifies the rendering rule for how the requested image should be rendered. f optional string. The response format. default is json Values: json,image,kmz,numpy_array Note: If f=”numpy_array” and if the raster is a single or multiband raster, the dimensions of the array will be rows, columns, and number of bands. If the raster is a multidimensional raster, the dimensions of the array will be number of slices, rows, columns, and number of bands. LERC needs to be installed to export image service as numpy array. If f=”image”, the bytes of the exported image are returned unless save_folder and save_file parameters are also passed, in which case the image is written to the specified file save_folder optional string. The folder in which the exported image is saved when f=image save_file optional string. The file in which the exported image is saved when f=image compression_tolerance optional float. Controls the tolerance of the lerc compression algorithm. The tolerance defines the maximum possible error of pixel values in the compressed image. Example: compression_tolerance=0.5 is loseless for 8 and 16 bit images, but has an accuracy of +-0.5 for floating point data. The compression tolerance works for the LERC format only. adjust_aspect_ratio optional boolean. Indicates whether to adjust the aspect ratio or not. By default adjust_aspect_ratio is true, that means the actual bbox will be adjusted to match the width/height ratio of size paramter, and the response image has square pixels. lerc_version optional integer. The version of the Lerc format if the user sets the format as lerc. Values: 1 or 2 If a version is specified, the server returns the matching version, or otherwise the highest version available. slice_id optional integer. Exports the given slice of a multidimensional raster. To get the slice index use slices method on the ImageryLayer object.
Returns

dict or string

# Usage Example: Exports an ImageryLayer object (created using Image Service) to a local location in tiff format

imagery_layer = ImageryLayer("https://myserver/arcgis/rest/services/ImageServiceName/ImageServer", gis=gis)
imagery_layer.export_image(size=[1400, 600],
export_format="tiff",
f="image",
save_folder=r"/path/to/save_folder",
save_file="my_raster.tif")

property extent

Area of interest. Used for displaying the imagery layer when queried

filter_by(where=None, geometry=None, time=None, lock_rasters=True)

Filters the layer by where clause, geometry and temporal filters

 Arguments Description where optional string. A where clause on this layer to filter the imagery layer by the selection sql statement. Any legal SQL where clause operating on the fields in the raster geometry optional arcgis.geometry.filters. To filter results by a spatial relationship with another geometry time optional datetime, date, or timestamp. A temporal filter to this layer to filter the imagery layer by time using the specified time instant or the time extent. Syntax: time_filter= Time extent specified as list of [, ] For time extents one of or could be None. A None value specified for start time or end time will represent infinity for start or end time respectively. Syntax: time_filter=[, ] ; specified as datetime.date, datetime.datetime or timestamp in milliseconds lock_rasters optional boolean. If True, the LockRaster mosaic rule will be applied to the layer, unless overridden
Returns

ImageryLayer with filtered images meeting the filter criteria

filtered_rasters()

The object ids of the filtered rasters in this imagery layer, by applying the where clause, spatial and temporal filters. If no rasters are filtered, returns None. If all rasters are filtered, returns empty list

first()

overlapping pixels at the same location are resolved by picking the first image :return: this imagery layer with mosaic operation set to ‘first’

classmethod fromitem(item)

Create Imagery Layer from GIS Item

get_download_info(raster_ids, polygon=None, extent=None, out_format=None)

The get_download_info() operation returns information (the file ID) that can be used to download the raw raster files that are associated with a specified set of rasters in the raster catalog.

 Argument Description raster_ids required string. A comma-separated list of raster IDs whose files are to be downloaded. polygon optional Polygon, The geometry to apply for clipping extent optional string. The geometry to apply for clipping example: “-104,35.6,-94.32,41” out_format optional string. The format of the rasters returned. If not specified, the rasters will be in their native format. The format applies when the clip geometry is also specified, and the format will be honored only when the raster is clipped. To force the Download Rasters operation to convert source images to a different format, append :Conversion after format string. Valid formats include: TIFF, Imagine Image, JPEG, BIL, BSQ, BIP, ENVI, JP2, GIF, BMP, and PNG. Example: out_format=’TIFF’
Returns

dictionary

get_histograms(variable=None)

Returns the histograms of each band in the imagery layer as a list of dictionaries corresponding to each band. get_histograms get_histograms() can return histogram for each variable if used with multidimensional ImageryLayer object by specifing value for variable parameter.

If histogram is not found, returns None. In this case, call the compute_histograms(). (get_histograms() is an enhanced version of the histograms property on the ImageryLayer class with additional variable parameter.)

 Arguments Description variable Optional string. For an image service that has multidimensional information, this parameter can be used to request histograms for each variable. It will return histograms for the whole ImageryLayer if not specified. This parameter is available from 10.8.1
Returns

my_hist = imagery_layer.histograms(variable=”water_temp”)

Structure of the return value: [{“size”:256, “min”:560, “max”:24568, counts: [10,99,56,42200,125,….] } ]

#length of this list corresponds ‘size’

get_raster_file(download_info, out_folder=None)

 Argument Description download_info required dictionary. This is derived from the get_downlad_info(). out_folder optional string. Path to the file save location. If the value is None, the OS temporary directory is used.
Returns

get_samples(geometry, geometry_type=None, sample_distance=None, sample_count=None, mosaic_rule=None, pixel_size=None, return_first_value_only=None, interpolation=None, out_fields=None)

The get_samples operation is supported by both mosaic dataset and raster dataset imagery layers. The result of this operation includes sample point locations, pixel values, and corresponding spatial resolutions of the source data for a given geometry. When the input geometry is a polyline, envelope, or polygon, sampling is based on sample_count or sample_distance; when the input geometry is a point or multipoint, the point or points are used directly. The number of sample locations in the response is based on the sample_distance or sample_count parameter and cannot exceed the limit of the image layer (the default is 1000, which is an approximate limit).

 Argument Description geometry A geometry that defines the location(s) to be sampled. The structure of the geometry is the same as the structure of the JSON geometry objects returned by the ArcGIS REST API. Applicable geometry types are point, multipoint, polyline, polygon, and envelope. When spatial reference is omitted in the input geometry, it will be assumed to be the spatial reference of the image layer. geometry_type optional string. The type of geometry specified by the geometry parameter. The geometry type can be point, multipoint, polyline, polygon, or envelope. sample_distance optional float. The distance interval used to sample points from the provided path. The unit is the same as the input geometry. If neither sample_count nor sample_distance is provided, no densification can be done for paths (polylines), and a default sample_count (100) is used for areas (polygons or envelopes). sample_count optional integer. The approximate number of sample locations from the provided path. If neither sample_count nor sample_distance is provided, no densification can be done for paths (polylines), and a default sample_count (100) is used for areas (polygons or envelopes). mosaic_rule optional dictionary. Specifies the mosaic rule when defining how individual images should be mosaicked. When a mosaic rule is not specified, the default mosaic rule of the image layer will be used (as advertised in the root resource: defaultMosaicMethod, mosaicOperator, sortField, sortValue). pixel_size optional string or dict. The pixel level being used (or the resolution being looked at). If pixel size is not specified, then pixel_size will default to the base resolution of the dataset. The raster at the specified pixel size in the mosaic dataset will be used for histogram calculation. Syntax: dictionary structure: pixel_size={point} Point simple syntax: pixel_size=’,’ Examples: pixel_size={“x”: 0.18, “y”: 0.18} pixel_size=’0.18,0.18’ return_first_value_only optional boolean. Indicates whether to return all values at a point, or return the first non-NoData value based on the current mosaic rule. The default is true. interpolation optional string. The resampling method. Default is nearest neighbor. Values: RSP_BilinearInterpolation,RSP_CubicConvolution, RSP_Majority,RSP_NearestNeighbor out_fields optional string. The list of fields to be included in the response. This list is a comma-delimited list of field names. You can also specify the wildcard character (*) as the value of this parameter to include all the field values in the results.
property height

returns height of image service

property histograms

Returns the histograms of each band in the imagery layer as a list of dictionaries corresponding to each band. If not histograms is found, returns None. In this case, call the compute_histograms()

Syntax

my_hist = imagery_layer.histograms()

Returns

#Structure of the return value for a two band imagery layer
[
{#band 1
”size”:256,
”min”:560,
”max”:24568,
”counts”: [10,99,56,42200,125,….] #length of this list corresponds ‘size’
},
{#band 2
”size”:256,
”min”:8000,
”max”:15668,
”counts”: [45,9,690,86580,857,….] #length of this list corresponds ‘size’
}
]

identify(geometry, mosaic_rule=None, rendering_rules=None, pixel_size=None, time_extent=None, return_geometry=False, return_catalog_items=True, return_pixel_values=True, max_item_count=None, slice_id=None, process_as_multidimensional=False)

It identifies the content of an image layer for a given location and a given mosaic rule. The location can be a point or a polygon.

The identify operation is supported by both mosaic dataset and raster dataset image services.

The result of this operation includes the pixel value of the mosaic for a given mosaic rule, a resolution (pixel size), and a set of catalog items that overlap the given geometry. The single pixel value is that of the mosaic at the centroid of the specified location. If there are multiple rasters overlapping the location, the visibility of a raster is determined by the order of the rasters defined in the mosaic rule. It also contains a set of catalog items that overlap the given geometry. The catalog items are ordered based on the mosaic rule. A list of catalog item visibilities gives the percentage contribution of the item to overall mosaic.

 Arguments Description geometry required dictionary/Point/Polygon. A geometry that defines the location to be identified. The location can be a point or polygon. mosaic_rule optional string or dict. Specifies the mosaic rule when defining how individual images should be mosaicked. When a mosaic rule is not specified, the default mosaic rule of the image layer will be used (as advertised in the root resource: defaultMosaicMethod, mosaicOperator, sortField, sortValue). rendering_rules optional dictionary/list. Specifies the rendering rule for how the requested image should be rendered. pixel_size optional string or dict. The pixel level being identified (or the resolution being looked at). Syntax: dictionary structure: pixel_size={point} Point simple syntax: pixel_size=’,’ Examples: pixel_size={“x”: 0.18, “y”: 0.18} pixel_size=’0.18,0.18’ time_extent optional list of datetime objects or datetime object. The time instant or time extent of the raster to be identified. This parameter is only valid if the image layer supports time. return_geometry optional boolean. Default is False. Indicates whether or not to return the raster catalog item’s footprint. Set it to false when the catalog item’s footprint is not needed to improve the identify operation’s response time. return_catalog_items optional boolean. Indicates whether or not to return raster catalog items. Set it to false when catalog items are not needed to improve the identify operation’s performance significantly. When set to false, neither the geometry nor attributes of catalog items will be returned. return_pixel_values optional boolean. Indicates whether to return the pixel values of all mosaicked raster catalog items under the requested geometry. Set it to false when only the pixel value of mosaicked output is needed at requested geometry. The default value of this parameter is true. Added at 10.6.1. max_item_count optional int. If the return_catalog_items parameter is set to true, this parameter will take effect. The default behavior is to return all raster catalog items within the requested geometry. Otherwise, the number of items returned will be the value specified in the max_item_count or all eligible items, whichever is smaller. Added at 10.6.1. Example:2 slice_id optional int. The slice ID of multidimensional raster. The identify operation will be performed for the specified slice. To get the slice ID use slices method on the ImageryLayer object. Added at 10.9 for image services which use ArcObjects11 or ArcObjectsRasterRendering as the service provider. Example:1 process_as_multidimensional optional boolean. Specifies whether to process the image service as a multidimensional image service. False - Pixel values of the specified rendering rules and mosaic rule at the specified geometry will be returned. This is the default. True - The image service is treated as a multidimensional raster, and pixel values from all slices, along with additional properties describing the slices, will be returned. Added at 10.9 for image services which use ArcObjects11 or ArcObjectsRasterRendering as the service provider.
Returns

dictionary

key_properties(rendering_rule=None)

returns key properties of the imagery layer, such as band properties

 Argument Description rendering_rule optional dictionary. Specifies the rendering rule for how the requested image should be rendered.
Returns

key properties of the imagery layer

last()

overlapping pixels at the same location are resolved by picking the last image

Returns

this imagery layer with mosaic operation set to ‘last’

legend(band_ids=None, rendering_rule=None, as_html=False)

The legend information includes the symbol images and labels for each symbol. Each symbol is generally an image of size 20 x 20 pixels at 96 DPI. Symbol sizes may vary slightly for some renderer types (e.g., Vector Field Renderer). Additional information in the legend response will include the layer name, layer type, label, and content type. The legend symbols include the base64 encoded imageData. The symbols returned in response to an image layer legend request reflect the default renderer of the image layer or the renderer defined by the rendering rule and band Ids.

 Argument Description band_ids optional string. If there are multiple bands, you can specify a single band, or you can change the band combination (red, green, blue) by specifying the band ID. Band ID is 0 based. Example: bandIds=2,1,0 rendering_rule optional dictionary. Specifies the rendering rule for how the requested image should be rendered. as_html optional bool. Returns an HTML table if True
Returns

legend as a dictionary by default, or as an HTML table if as_html is True

max()

overlapping pixels at the same location are resolved by picking the max pixel value

Returns

this imagery layer with mosaic operation set to ‘max’

mean()

overlapping pixels at the same location are resolved by choosing the mean of all overlapping pixels

Returns

this imagery layer with mosaic operation set to ‘mean’

measure(from_geometry, to_geometry=None, measure_operation=None, pixel_size=None, mosaic_rule=None, linear_unit=None, angular_unit=None, area_unit=None)

The function lets a user measure distance, direction, area, perimeter, and height from an image layer. The result of this operation includes the name of the raster dataset being used, sensor name, and measured values. The measure operation can be supported by image services from raster datasets and mosaic datasets. Spatial reference is required to perform basic measurement (distance, area, and so on). Sensor metadata (geodata transformation) needs to be present in the data source used by an image layer to enable height measurement (for example, imagery with RPCs). The mosaic dataset or Layer needs to include DEM to perform 3D measure.

 Arguments Description from_geometry required Geometry or dictionary. A geometry that defines the “from” location of the measurement. to_geometry optional Geometry or dictionary. A geometry that defines the “to” location of the measurement. The type of geometry must be the same as from_geometry. measure_operation optional string or dict. Specifies the type of measure being performed. Values: Point, DistanceAndAngle, AreaAndPerimeter, HeightFromBaseAndTop, HeightFromBaseAndTopShadow, HeightFromTopAndTopShadow, Centroid, Point3D, DistanceAndAngle3D, AreaAndPerimeter3D, Centroid3D Different measureOperation types require different from and to geometries: Point and Point3D-Require only from_geometry, type: {Point} DistanceAndAngle, DistanceAndAngle3D, HeightFromBaseAndTop, HeightFromBaseAndTopShadow, and HeightFromTopAndTopShadow - Require both from_geometry and to_geometry, type: {Point} AreaAndPerimeter, AreaAndPerimeter3D, Centroid, and Centroid3D - Require only from_geometry, type: {Polygon}, {Envelope} Supported measure operations can be derived from the mensurationCapabilities in the image layer root resource. Basic capability supports Point, DistanceAndAngle, AreaAndPerimeter, and Centroid. Basic and 3Dcapabilities support Point3D, DistanceAndAngle3D,AreaAndPerimeter3D, and Centroid3D. Base-Top Height capability supports HeightFromBaseAndTop. Top-Top Shadow Height capability supports HeightFromTopAndTopShadow. Base-Top Shadow Height capability supports HeightFromBaseAndTopShadow. pixel_size optional string or dict. The pixel level (resolution) being measured. If pixel size is not specified, pixel_size will default to the base resolution of the image layer. The raster at the specified pixel size in the mosaic dataset will be used for measurement. Syntax: dictionary structure: pixel_size={point} Point simple syntax: pixel_size=’,’ Examples: pixel_size={“x”: 0.18, “y”: 0.18} pixel_size=’0.18,0.18’ mosaic_rule optional string or dict. Specifies the mosaic rule when defining how individual images should be mosaicked. When a mosaic rule is not specified, the default mosaic rule of the image layer will be used (as advertised in the root resource: defaultMosaicMethod, mosaicOperator, sortField, sortValue). The first visible image is used by measure. linear_unit optional string. The linear unit in which height, length, or perimeters will be calculated. It can be any of the following U constant. If the unit is not specified, the default is Meters. The list of valid Units constants include: Inches,Feet,Yards,Miles,NauticalMiles, Millimeters,Centimeters,Decimeters,Meters, Kilometers angular_unit optional string. The angular unit in which directions of line segments will be calculated. It can be one of the following DirectionUnits constants: DURadians, DUDecimalDegrees If the unit is not specified, the default is DUDecimalDegrees. area_unit optional string. The area unit in which areas of polygons will be calculated. It can be any AreaUnits constant. If the unit is not specified, the default is SquareMeters. The list of valid AreaUnits constants include: SquareInches,SquareFeet,SquareYards,Acres, SquareMiles,SquareMillimeters,SquareCentimeters, SquareDecimeters,SquareMeters,Ares,Hectares, SquareKilometers
Returns

dictionary

min()

overlapping pixels at the same location are resolved by picking the min pixel value

Returns

this imagery layer with mosaic operation set to ‘min’

mosaic_by(method=None, sort_by=None, sort_val=None, lock_rasters=None, viewpt=None, asc=True, where=None, fids=None, muldidef=None, op='first', item_rendering_rule=None)

Defines how individual images in this layer should be mosaicked. It specifies selection, mosaic method, sort order, overlapping pixel resolution, etc. Mosaic rules are for mosaicking rasters in the mosaic dataset. A mosaic rule is used to define:

• The selection of rasters that will participate in the mosaic (using where clause).

• The mosaic method, e.g. how the selected rasters are ordered.

• The mosaic operation, e.g. how overlapping pixels at the same location are resolved.

 Argument Description method optional string. Determines how the selected rasters are ordered. str, can be none,center,nadir,northwest,seamline,viewpoint, attribute,lock-raster required if method is: center,nadir,northwest,seamline, optional otherwise. If no method is passed “none” method is used, which uses the order of records to sort If sort_by and optionally sort_val parameters are specified, “attribute” method is used If lock_rasters are specified, “lock-raster” method is used If a viewpt parameter is passed, “viewpoint” method is used. sort_by optional string. field name when sorting by attributes sort_val optional string. A constant value defining a reference or base value for the sort field when sorting by attributes lock_rasters optional, an array of raster Ids. All the rasters with the given list of raster Ids are selected to participate in the mosaic. The rasters will be visible at all pixel sizes regardless of the minimum and maximum pixel size range of the locked rasters. viewpt optional point, used as view point for viewpoint mosaicking method asc optional bool, indicate whether to use ascending or descending order. Default is ascending order. where optional string. where clause to define a subset of rasters used in the mosaic, be aware that the rasters may not be visible at all scales fids optional list of objectids, use the raster id list to define a subset of rasters used in the mosaic, be aware that the rasters may not be visible at all scales. muldidef optional array. multidemensional definition used for filtering by variable/dimensions. See https://developers.arcgis.com/documentation/common-data-types/multidimensional-definition.htm op optional string, first,last,min,max,mean,blend,sum mosaic operation to resolve overlap pixel values: from first or last raster, use the min, max or mean of the pixel values, or blend them. item_rendering_rule optional item rendering rule, applied on items before mosaicking.
Returns

a mosaic rule defined in the format at https://developers.arcgis.com/documentation/common-data-types/mosaic-rules.htm

property mosaic_rule

The mosaic rule used by the imagery layer to define:

• The selection of rasters that will participate in the mosaic

• The mosaic method, e.g. how the selected rasters are ordered.

• The mosaic operation, e.g. how overlapping pixels at the same location are resolved.

Set by calling the mosaic_by or filter_by methods on the layer

property multidimensional_info

The multidimensional_info property returns multidimensional information of the Layer. This property is supported if the hasMultidimensions property of the Layer is true. Common data sources for multidimensional image services are mosaic datasets created from netCDF, GRIB, and HDF data.

property pixel_type

returns pixel type of the imagery layer

plot_histograms(geometry=None, pixel_size=None, time=None, bands=[], display_stats=True, plot_properties=None, subplot_properties=None)

Image histograms visually summarize the distribution of a continuous numeric variable by measuring the frequency at which certain values appear in the image. The x-axis in the image histogram is a number line that displays the range of image pixel values that has been split into number ranges, or bins. A bar is drawn for each bin, and the width of the bar represents the density number range of the bin; the height of the bar represents the number of pixels that fall into that range. Understanding the distribution of your data is an important step in the data exploration process.

plot_histograms() can be used for plotting the band-wise image histogram charts of any imagery layer published with mosaic datasets or a raster dataset.

 Arguments Description geometry optional Polygon or Extent. A geometry that defines the geometry within which the histogram is computed. The geometry can be an envelope or a polygon. If not provided, then the full extent of the raster will be used for the computation. pixel_size optional string or dictionary. The pixel level being used (or the resolution being looked at). If pixel size is not specified, then pixel_size will default to the base resolution of the dataset. The structure of the pixel_size parameter is the same as the structure of the point object returned by the ArcGIS REST API. In addition to the dictionary structure, you can specify the pixel size with a comma-separated string. Syntax: dictionary structure: pixel_size={point} Point simple syntax: pixel_size=’,’ Examples: pixel_size={“x”: 0.18, “y”: 0.18} pixel_size=’0.18,0.18’ time optional datetime.date, datetime.datetime or timestamp string. The time instant or the time extent of the exported image. Time instant specified as datetime.date, datetime.datetime or timestamp in milliseconds since epoch Syntax: time= Time extent specified as list of [, ] For time extents one of or could be None. A None value specified for start time or end time will represent infinity for start or end time respectively. Syntax: time=[, ] ; specified as datetime.date, datetime.datetime or timestamp Available in 10.8+ bands optional list of band indices. By default takes the first band (band index - 0). Image histogram charts are plotted for these specific bands. Example: [0,2,3] display_stats optional boolean. Specifies whether to plot the band-wise statistics along with the histograms. Some basic descriptive statistics are calculated and displayed on histograms. The mean and median are displayed with one line each, and one standard deviation above and below the mean is displayed using two lines. False - The statistics will not be displayed along with the histograms. True - The statistics will be displayed along with the histograms. This is the default. plot_properties optional dictionary. This parameter can be used to set the figure properties. These are the matplotlib.pyplot.figure() parameters and values specified in dict format. Example: {“figsize”:(15,15)} subplot_properties optional list or dictionary. This parameter can be used to set band-wise histogram (subplot) display properties. These are the matplotlib.axes.Axes.bar() parameters and values specified in dictionary format. Example: [ {“color”:”r”}, {“color”:”g”}, {“color”:”b”,”edgecolor”:”w”} ] Note: matplotlib.axes.Axes.bar() parameters: ‘’x’, ‘height’ or ‘align’ cannot be passed into subplot_properties.

Tip

When working with multidimensional imagery layers, you can use the multidimensional_filter() raster function on the layer for slicing the data along defined variables and dimensions. plot_histograms() can then be used on the output layer returned upon applying the filter.

Returns

None

# Usage Example: Plots histograms of the raster with specified resolution and bands

raster1.plot_histograms(pixel_size="0.18, 0.18", bands=[1, 2, 3])

project(geometries, in_sr, out_sr)

The project operation is performed on an image layer method. This operation projects an array of input geometries from the input spatial reference to the output spatial reference. The response order of geometries is in the same order as they were requested.

 Arguments Description geometries required dictionary. The array of geometries to be projected. in_sr required string, dictionary, SpatialReference. The in_sr can accept a multitudes of values. These can be a WKID, image coordinate system (ICSID), or image coordinate system in json/dict format. Additionally the arcgis.geometry.SpatialReference object is also a valid entry. Note An image coordinate system ID can be specified using 0:icsid; for example, 0:64. The extra 0: is used to avoid conflicts with wkid out_sr required string, dictionary, SpatialReference. The in_sr can accept a multitudes of values. These can be a WKID, image coordinate system (ICSID), or image coordinate system in json/dict format. Additionally the arcgis.geometry.SpatialReference object is also a valid entry. Note An image coordinate system ID can be specified using 0:icsid; for example, 0:64. The extra 0: is used to avoid conflicts with wkid
Returns

dictionary

property properties

The properties of this object

query(where=None, out_fields='*', time_filter=None, geometry_filter=None, return_geometry=True, return_ids_only=False, return_count_only=False, pixel_size=None, order_by_fields=None, return_distinct_values=None, out_statistics=None, group_by_fields_for_statistics=None, out_sr=None, return_all_records=False, object_ids=None, multi_dimensional_def=None, result_offset=None, result_record_count=None, max_allowable_offset=None, true_curves=False, as_df=False, raster_query=None)

queries an imagery layer by applying the filter specified by the user. The result of this operation is either a set of features or an array of raster IDs (if return_ids_only is set to True), count (if return_count_only is set to True), or a set of field statistics (if out_statistics is used).

 Arguments Description where optional string. A where clause on this layer to filter the imagery layer by the selection sql statement. Any legal SQL where clause operating on the fields in the raster out_fields optional string. The attribute fields to return, comma-delimited list of field names. time_filter optional datetime.date, datetime.datetime or timestamp in milliseconds. The time instant or the time extent of the exported image. Syntax: time_filter= Time extent specified as list of [, ] For time extents one of or could be None. A None value specified for start time or end time will represent infinity for start or end time respectively. Syntax: time_filter=[, ] ; specified as datetime.date, datetime.datetime or timestamp in milliseconds geometry_filter optional arcgis.geometry.filters. Spatial filter from arcgis.geometry.filters module to filter results by a spatial relationship with another geometry. return_geometry optional boolean. True means a geometry will be returned, else just the attributes return_ids_only optional boolean. False is default. True means only OBJECTIDs will be returned return_count_only optional boolean. If True, then an integer is returned only based on the sql statement pixel_size optional dict or string. Query visible rasters at a given pixel size. If pixel_size is not specified, rasters at all resolutions can be queried. Syntax: dictionary structure: pixel_size={point} Point simple syntax: pixel_size=’,’ Examples: pixel_size={“x”: 0.18, “y”: 0.18} pixel_size=’0.18,0.18’ order_by_fields optional string. Order results by one or more field names. Use ASC or DESC for ascending or descending order, respectively. return_distinct_values optional boolean. If true, returns distinct values based on the fields specified in out_fields. This parameter applies only if the supportsAdvancedQueries property of the image layer is true. out_statistics optional dict or string. The definitions for one or more field-based statistics to be calculated. group_by_fields_for_statistics optional dict/string. One or more field names using the values that need to be grouped for calculating the statistics. out_sr optional dict, SpatialReference. If the returning geometry needs to be in a different spatial reference, provide the function with the desired WKID. return_all_records optional boolean. If True(default) all records will be returned. False means only the limit of records will be returned. object_ids optional string. The object IDs of this raster catalog to be queried. When this parameter is specified, any other filter parameters (including where) are ignored. When this parameter is specified, setting return_ids_only=true is invalid. Syntax: objectIds=, Example: objectIds=37, 462 multi_dimensional_def optional dict. The filters defined by multiple dimensional definitions. result_offset optional integer. This option fetches query results by skipping a specified number of records. The query results start from the next record (i.e., resultOffset + 1). The Default value is None. result_record_count optional integer. This option fetches query results up to the resultRecordCount specified. When resultOffset is specified and this parameter is not, image layer defaults to maxRecordCount. The maximum value for this parameter is the value of the layer’s maxRecordCount property. max_allowable_offset - This option can be used to specify the max_allowable_offset to be used for generalizing geometries returned by the query operation. The max_allowable_offset is in the units of the out_sr. If outSR is not specified, max_allowable_offset is assumed to be in the unit of the spatial reference of the Layer. true_curves optional boolean. If true, returns true curves in output geometries, otherwise curves get converted to densified polylines or polygons. as_df optional boolean. Returns the query result as a dataframe object raster_query optional string. Make query based on key properties of each raster catalog item. Any legal SQL where clause operating on the key properties of raster catalog items is allowed. Example: LANDSAT_WRS_PATH >= 150 AND LANDSAT_WRS_PATH<= 165 This option was added at 10.8.1.
Returns

A FeatureSet containing the footprints (features) matching the query when return_geometry is True, else a dictionary containing the expected return type.

query_boundary(out_sr=None)

The Query Boundary operation is supported by image services based on mosaic datasets or raster datasets.

For an image service based on a mosaic dataset, the result of this operation includes the geometry shape of the mosaicked items’ boundary and area of coverage in square meters.

For an image service based on a raster dataset, the result of this operation includes the geometry shape of the dataset’s envelope boundary and area of coverage in square meters.

 Argument Description out_sr The spatial reference of the boundary’s geometry. The spatial reference can be specified as either a well-known ID or as a spatial reference JSON object. If the outSR is not specified, the boundary will be reported in the spatial reference of the image service. Example:4326
Returns

dictionary showing whether the specified rendering rule and/or mosaic rule is valid

property raster_info

Returns information about the ImageryLayer such as bandCount, extent , pixelSizeX, pixelSizeY, pixelType

property rasters

Raster manager for this layer

render_tilesonly_layer(level=None, slice_id=None)

Render tiles only Imagery Layer at a given level.

 Argument Description level Optional integer. Level to be used for rendering. Default value is 0. slice_id Optional l integer. Renders the given slice of a multidimensional raster. To get the slice index use slices method on the ImageryLayer object.
Returns

None

property rows

returns number of rows in the imagery layer

save(output_name=None, for_viz=False, process_as_multidimensional=None, build_transpose=None, *, gis=None, future=False, **kwargs)

Persists this imagery layer to the GIS as an Imagery Layer item. If for_viz is True, a new Item is created that uses the applied raster functions for visualization at display resolution using on-the-fly image processing. If for_viz is False, distributed raster analysis is used for generating a new raster information product by applying raster functions at source resolution across the extent of the output imagery layer.

 Argument Description output_name Optional string. If not provided, an Imagery Layer item is created by the method and used as the output. You can pass in the name of the output Imagery Layer that should be created by this method to be used as the output for the tool. Alternatively, if for_viz is False, you can pass in an existing Image Layer Item from your GIS to use that instead. A RuntimeError is raised if a layer by that name already exists for_viz Optional boolean. If True, a new Item is created that uses the applied raster functions for visualization at display resolution using on-the-fly image processing. If for_viz is False, distributed raster analysis is used for generating a new raster information product for use in analysis and visualization by applying raster functions at source resolution across the extent of the output imagery layer. process_as_multidimensional Optional bool. If the input is multidimensional raster, the output will be processed as multidimensional if set to True build_transpose Optional bool, if set to true, transforms the output multidimensional raster. Valid only if process_as_multidimensional is set to True gis Optional arcgis.gis.GIS object. The GIS to be used for saving the output. Keyword only parameter. future Optional boolean. If True, the result will be a GPJob object and results will be returned asynchronously. Keyword only parameter. tiles_only In ArcGIS Online, the default output image service for this function would be a Tiled Imagery Layer. To create Dynamic Imagery Layer as output on ArcGIS Online, set tiles_only parameter to False. Function will not honor tiles_only parameter in ArcGIS Enterprise and will generate Dynamic Imagery Layer by default.
Returns

output_raster - Image layer item

property service

The service backing this imagery layer (if user can administer the service)

set_filter(where=None, geometry=None, time=None, lock_rasters=False, clear_filters=False)

Filters the rasters that will be used for applying raster functions.

If lock_rasters is set True, the LockRaster mosaic rule will be applied to the layer, unless overridden

 Arguments Description where optional string. A where clause on this layer to filter the imagery layer by the selection sql statement. Any legal SQL where clause operating on the fields in the raster geometry optional arcgis.geometry.filters. To filter results by a spatial relationship with another geometry time optional datetime, date, or timestamp. A temporal filter to this layer to filter the imagery layer by time using the specified time instant or the time extent. Syntax: time_filter= Time extent specified as list of [, ] For time extents one of or could be None. A None value specified for start time or end time will represent infinity for start or end time respectively. Syntax: time_filter=[, ] ; specified as datetime.date, datetime.datetime or timestamp in milliseconds lock_rasters optional boolean. If True, the LockRaster mosaic rule will be applied to the layer, unless overridden clear_filters optional boolean. If True, the applied filters are cleared
slices(muldidef=None)

Operation to query slice ID and multidimensional information of a multidimensional image service.

Operation available in ArcGIS Image Server 10.8.1 and higher.

 Arguments Description muldidef optional array. Multidimensional definition used for querying dimensional slices of the input image service. Read more about Multidimensional definition here: https://developers.arcgis.com/documentation/common-data-types/multidimensional-definition.htm
# Usage Example: This example returns the slice ID and multidimensional information of slices with
# "salinity" variable at "StdZ" dimension with a value of "-5000".

multidimensional_definition = [{"variableName":"salinity","dimensionName":"StdZ","values":[-5000]}]
multidimensional_lyr_input.slices(multidimensional_definition)

Returns

dictionary containing the list of slice definitions.

statistics(variable=None)

Returns statistics of the raster.

Operation available in ArcGIS Image Server 10.8.1 and higher.

 Arguments Description variable Optional string. For an image service that has multidimensional information, this parameter can be used to request statistics for each variable. If not specified, it will return statistics for the whole image service. Eligible variable names can be queried from multidimensional_info property of the Imagery Layer object.
# Usage Example: This example returns the statistics of an Imagery Layer object.

lyr_input.statistics()

Returns

dictionary containing the statistics.

sum()

overlapping pixels at the same location are resolved by adding up all overlapping pixel values

Returns

this imagery layer with mosaic operation set to ‘sum’

temporal_profile(points=[], time_field=None, variables=[], bands=[0], time_extent=None, dimension=None, dimension_values=[], show_values=False, trend_type=None, trend_order=None, plot_properties={})

A temporal profile serves as a basic analysis tool for imagery data in a time series. Visualizing change over time with the temporal profile allows trends to be displayed and compared with variables, bands, or values from other dimensions simultaneously.

Using the functionality in temporal profile charts, you can perform trend analysis, gain insight into multidimensional raster data at given locations, and plot values that are changing over time in the form of a line graph.

Temporal profile charts can be used in various scientific applications involving time series analysis of raster data, and the graphical output of results can be used directly as input for strategy management and decision making.

The x-axis of the temporal profile displays the time in continuous time intervals. The time field is obtained from the timeInfo of the image service.

The y-axis of the temporal profile displays the variable value.

 Argument Description points Required list of point Geometry objects. time_field Required string. The time field that will be used for plotting temporal profile. If not specified the time field is obtained from the timeInfo of the image service. variables Required list of variable names. For non multidimensional data, the variable would be name of the Sensor. To plot the graph against all sensors specify - “ALL_SENSORS” bands Optional list of band indices. By default takes the first band (band index - 0). For a multiband data, you can compare the time change of different bands over different locations. time_extent Optional list of date time object. This represents the time extent dimension Optional list of dimension names. This option works specifically on multidimensional data containing a time dimension and other dimensions. The temporal profile is created based on the specific values in other dimensions, such as depth at the corresponding time value. For example, soil moisture data usually includes both a time dimension and vertical dimension below the earth’s surface, resulting in a temporal profile at 0.1, 0.2, and 0.3 meters below the ground. dimension_values Optional list of dimension values. This parameter can be used to specify the values of dimension parameter other than the time dimension (dimension name specified using dimension parameter) show_values Optional bool. Default False. Set this parameter to True to display the values at each point in the line graph. trend_type Optional string. Default None. Set the trend_type parameter eith with linear or harmonic to draw the trend line linear : Fits the pixel values for a variable along a linear trend line. harmonic : Fits the pixel values for a variable along a harmonic trend line. trend_order optional number. The frequency number to use in the trend fitting. This parameter specifies the frequency of cycles in a year. The default value is 1, or one harmonic cycle per year. This parameter is only included in the trend analysis for a harmonic regression. plot_properties Optional dict. This parameter can be used to set the figure properties. These are the matplotlib.pyplot.figure() parameters and values specified in dict format. eg: {“figsize”:(15,15)}
Returns

None

property tiles

Imagery tile manager for this layer

property tiles_only

returns True if the layer is a Tiled Imagery Layer

to_features(field='Value', output_type='Polygon', simplify=True, output_name=None, create_multipart_features=False, max_vertices_per_feature=None, *, gis=None, future=False, **kwargs)

Converts this raster to a persisted feature layer of the specified type using Raster Analytics.

Distributed raster analysis is used for generating a new feature layer by applying raster functions at source resolution across the extent of the raster and performing a raster to features conversion.

 Argument Description field Optional string - field that specifies which value will be used for the conversion. It can be any integer or a string field. A field containing floating-point values can only be used if the output is to a point dataset. Default is “Value” output_type Optional string. One of the following: [‘Point’, ‘Line’, ‘Polygon’] simplify Optional bool, This option that specifies how the features should be smoothed. It is only available for line and polygon output. True, then the features will be smoothed out. This is the default. if False, then The features will follow exactly the cell boundaries of the raster dataset. output_name Optional. If not provided, an Feature layer is created by the method and used as the output . You can pass in an existing Feature Service Item from your GIS to use that instead. Alternatively, you can pass in the name of the output Feature Service that should be created by this method to be used as the output for the tool. A RuntimeError is raised if a service by that name already exists create_multipart_features Optional boolean. Specifies whether the output polygons will consist of single-part or multipart features. True: Specifies that multipart features will be created based on polygons that have the same value. False: Specifies that individual features will be created for each polygon. This is the default. max_vertices_per_feature Optional int. The vertex limit used to subdivide a polygon into smaller polygons. gis Optional GIS object. If not speficied, the currently active connection is used. future Keyword only parameter. Optional boolean. If True, the result will be a GPJob object and results will be returned asynchronously.
Returns

converted feature layer item

validate(rendering_rule=None, mosaic_rule=None)

validates rendering rule and/or mosaic rule of an image service.

 Argument Description rendering_rule optional dictionary. Specifies the rendering rule to be validated mosaic_rule optional dictionary. Specifies the mosaic rule to be validated
Returns

dictionary showing whether the specified rendering rule and/or mosaic rule is valid

property width

returns width of the imagery layer

## ImageryLayerCacheManager¶

class arcgis.raster.ImageryLayerCacheManager(url, gis=None, img_lyr=None)

Allows for administration of ArcGIS Online hosted image layers.

cancel_job(job_id)

The cancel job operation supports cancelling a job while update tiles is running from a hosted feature service. The result of this operation is a response indicating success or failure with error code and description.

Inputs:

job_id - job id to cancel

delete_tiles(levels, extent=None)

Deletes tiles for the current cache

 Argument Description extent optional dictionary, If specified, the tiles within this extent will be deleted or will be deleted based on the service’s full extent. Example: 6224324.092137296,487347.5253569535, 11473407.698535524,4239488.369818687 the minx, miny, maxx, maxy values or, {“xmin”:6224324.092137296,”ymin”:487347.5253569535, “xmax”:11473407.698535524,”ymax”:4239488.369818687, “spatialReference”:{“wkid”:102100}} the JSON representation of the Extent object. levels required string, The level to delete. Example, 0-5,10,11-20 or 1,2,3 or 0-5
Returns

dictionary

edit_tile_service(service_definition=None, min_scale=None, max_scale=None, source_item_id=None, export_tiles_allowed=False, max_export_tile_count=100000)

This operation updates a Tile Service’s properties

 Argument Description service_definition updates a service definition min_scale sets the services minimum scale for caching max_scale sets the service’s maximum scale for caching source_item_id The Source Item ID is the GeoWarehouse Item ID of the map service export_tiles_allowed sets the value to let users export tiles max_export_tile_count sets the maximum amount of tiles to be exported from a single call. Deletes tiles for the current cache
Returns

boolean

classmethod fromitem(item)
import_tiles(item, levels=None, extent=None, merge=False, replace=False)

Imports cache from a new ImageLayer Tile Package.

 Argument Description item Required ItemId or Item. The TPK file’s item id. This TPK file contains to-be-extracted bundle files which are then merged into an existing cache service. levels Optional String / List of integers, The level of details to update. Example: “1,2,10,20” or [1,2,10,20] extent Optional String / Dict. The area to update as Xmin, YMin, XMax, YMax example: “-100,-50,200,500” or {‘xmin’:100, ‘ymin’:200, ‘xmax’:105, ‘ymax’:205} merge Optional Boolean. Default is false and applicable to compact cache storage format. It controls whether the bundle files from the TPK file are merged with the one in the existing cached service. Otherwise, the bundle files are overwritten. replace Optional Boolean. Default is false, applicable to compact cache storage format and used when merge=true. It controls whether the new tiles will replace the existing ones when merging bundles.
Returns

Dict

job_statistics(job_id)

Returns the job statistics for the given job_id

 Arguments Description job_id required String. The unique identifier of the job in question.
Returns

dict

job_status(job_id)

Gets the Current Job Status

 Arguments Description job_id required String. The unique identifier of the job in question.
Returns

dict

property jobs

returns a list of all the jobs on the tile server

property properties

The properties of this object

refresh()

The refresh operation refreshes a service, which clears the web server cache for the service.

rerun_job(job_id, code)

The rerun job operation supports re-running a canceled job from a hosted map service. The result of this operation is a response indicating success or failure with error code and description.

 Argument Description code required string, parameter used to re-run a given jobs with a specific error code: ALL | ERROR | CANCELED job_id required string, job to reprocess
Returns

boolean or dictionary

update_tiles(levels=None, extent=None, merge=False, replace=False)

Starts tile generation for ArcGIS Online. The levels of detail and the extent are needed to determine the area where tiles need to be rebuilt.

 Argument Description levels Optional String / List of integers, The level of details to update. Example: “1,2,10,20” or [1,2,10,20] extent Optional String / Dict. The area to update as Xmin, YMin, XMax, YMax example: “-100,-50,200,500” or {‘xmin’:100, ‘ymin’:200, ‘xmax’:105, ‘ymax’:205} merge Optional Boolean. Default is False. When true the updated cache is merged with the existing cache. replace Optional Boolean. The default is False. The updated tiles will remove the existing tiles.
Returns

Dictionary. If the product is not ArcGIS Online tile service, the result will be None.

## ImageryTileManager¶

class arcgis.raster.ImageryTileManager(imglyr)

Manages the tiles for Cached Imagery Layers.

Note

This class is not created by users directly. An instance of this class, called tiles , is available as a property of an ImageryLayer object. Users call methods on this tiles object to create and access tiles from an ImageryLayer.

 Argument Description imglyr required ImageLayer. The imagery layer object that is cached.
estimate_size(tile_package=False, extent=None, optimize_for_size=True, compression=75, export_by='LevelID', levels=None, aoi=None)

The estimate_size operation is an asynchronous task that allows estimation of the size of the tile package or the cache data set that you download using the Export Tiles operation. This operation can also be used to estimate the tile count in a tile package and determine if it will exceced the maxExportTileCount limit set by the administrator of the layer. The result of this operation is the response size. This job response contains reference to Image Layer Result method that returns the total size of the cache to be exported (in bytes) and the number of tiles that will be exported.

 Argument Description tile_package optional boolean. If the value is true output will be in tile package format and if the value is false Cache Raster data set is returned. The default value is false extent optional string. The extent (bounding box) of the tile package or the cache dataset to be exported. If extent does not include a spatial reference, the extent values are assumed to be in the spatial reference of the map. The default value is full extent of the tiled map service. Syntax: , , , Example: -104,35.6,-94.32,41 optimize_for_size optional boolean. Use this parameter to enable compression of JPEG tiles and reduce the size of the downloaded tile package or the cache raster data set. Compressing tiles slightly compromises on the quality of tiles but helps reduce the size of the download. Try out sample compressions to determine the optimal compression before using this feature. compression optional integer. When optimizeTilesForSize=true you can specify a compression factor. The value must be between 0 and 100. Default is 75. export_by optional string. The criteria that will be used to select the tile service levels to export. The values can be Level IDs, cache scales or the Resolution (in the case of image services). Values: LevelID,Resolution,Scale Default: LevelID levels optional string. Specify the tiled service levels to export. The values should correspond to Level IDs, cache scales or the Resolution as specified in exportBy parameter. The values can be comma separated values or a range. Example 1: 1,2,3,4,5,6,7,8,9 Example 2: 1-4,7-9 aoi optional polygon. The areaOfInterest polygon allows exporting tiles within the specified polygon areas. This parameter supersedes extent parameter.
Returns

dictionary

export(tile_package=False, extent=None, optimize_for_size=True, compression=75, export_by='LevelID', levels=None, aoi=None)

The export method allows client applications to download map tiles from server for offline use. This operation is performed on a Image Layer that allows clients to export cache tiles. The result of this operation is Image Layer Job.

export can be enabled in a layer by using ArcGIS Desktop or the ArcGIS Server Administrative Site Directory. In ArcGIS Desktop, make an admin or publisher connection to the server, go to layer properties and enable “Allow Clients to Export Cache Tiles” in advanced caching page of the layer Editor. You can also specify the maximum tiles clients will be allowed to download. The default maximum allowed tile count is 100,000. To enable this capability using the ArcGIS Servers Administrative Site Directory, edit the layer and set the properties exportTilesAllowed=true and maxExportTilesCount=100000.

 Argument Description tile_package optional boolean. Allows exporting either a tile package or a cache raster data set. If the value is true output will be in tile package format and if the value is false Cache Raster data set is returned. The default value is false extent optional string. The extent (bounding box) of the tile package or the cache dataset to be exported. If extent does not include a spatial reference, the extent values are assumed to be in the spatial reference of the map. The default value is full extent of the tiled map service. Syntax: , , , Example: -104,35.6,-94.32,41 optimize_for_size optional boolean. Use this parameter to enable compression of JPEG tiles and reduce the size of the downloaded tile package or the cache raster data set. Compressing tiles slightly compromises on the quality of tiles but helps reduce the size of the download. Try out sample compressions to determine the optimal compression before using this feature. compression optional integer. When optimizeTilesForSize=true you can specify a compression factor. The value must be between 0 and 100. Default is 75. export_by optional string. The criteria that will be used to select the tile service levels to export. The values can be Level IDs, cache scales or the Resolution (in the case of image services). Values: LevelID,Resolution,Scale Default: LevelID levels optional string. Specify the tiled service levels to export. The values should correspond to Level IDs, cache scales or the Resolution as specified in exportBy parameter. The values can be comma separated values or a range. Example 1: 1,2,3,4,5,6,7,8,9 Example 2: 1-4,7-9 aoi optional polygon. The areaOfInterest polygon allows exporting tiles within the specified polygon areas. This parameter supersedes extent parameter.
image_tile(level, row, column, blank_tile=False)

For cached image services, this method represents a single cached tile for the image. The image bytes for the tile at the specified level, row, and column are directly streamed to the client. If the tile is not found, an HTTP status code of 404 .

 Arguments Description level required integer. The level of detail ID. row required integer. The row of the cache to pull from. column required integer. The column of the cache to pull from. blank_tile optional boolean. Default is False. This parameter applies only to cached image services that are configured with the ability to return blank or missing tiles for areas where cache is not available. When False, the server will return a resource not found (HTTP 404) response instead of a blank or missing tile. When this parameter is not set, the response will contain the header blank-tile : true for a blank/missing tile.
Returns

None or file path (string)

## Raster¶

class arcgis.raster.Raster(path, is_multidimensional=False, extent=None, cmap=None, opacity=None, engine=None, gis=None)

A raster object is a variable that references a raster. It can be used to query the properties of the raster dataset.

Usage: arcgis.raster.Raster(path, is_multidimensional=False,  engine=None, gis=None)

The Raster class can work with arcpy engine or image server engine. By default, if the path is a local path, then the Raster class uses the arcpy engine else it will use image_server engine.

 Argument Description path Required string. The input raster. Example:path = r”/path/to/raster” path = “/fileShares/file_share_name/path/to/raster” path = “/cloudStores/cloud_store_name/path/to/raster” Note: When working with datastore rasters or non image service urls, RasterRendering service should be enabled in the active GIS connection is_multidimensional Optional boolean. Determines whether the input raster will be treated as multidimensional. Specify True if the input is multidimensional and should be processed as multidimensional, where processing occurs for every slice in the dataset. Specify False if the input is not multidimensional, or if it is multidimensional and should not be processed as multidimensional. Default is False extent Optional dict. If the input raster’s extent cannot be automatically inferred, pass in a dictionary representing the raster’s extent for when viewing on a MapView widget. Example: { “xmin” : -74.22655, “ymin” : 40.712216, “xmax” : -74.12544, “ymax” : 40.773941, “spatialReference” : { “wkid” : 4326 } } cmap Optional str. When displaying a 1 band raster in a MapView widget, what matplotlib colormap to apply to the raster. See arcgis.mapping.symbol.display_colormaps() for a list of compatible values. opacity Optional number. When displaying a raster in a MapView widget, what opacity to apply. 0 is completely transparent, 1 is completely opaque. Default: 1 engine Optional string. The backend engine to be used. Possible options: “arcpy” : Use the arcpy engine for processing. “image_server” : Use the Image Server engine for processing. gis Optional. GIS of the Raster object.
# Example Usage

map = gis.map()

# Overlay an image service on the 'MapView' widget
service_url = gis.content.search("my_image_service", item_type="Imagery Layer")[0].url
raster = Raster(path=service_url, gis=gis)

# Overlay .tif file present in user's registered fileShare datastore
# (Requires RasterRendering service to be enabled in the active GIS)
raster = Raster("/fileShares/data/Amberg.tif", gis=gis)

# Overlay a publicly accesible Cloud-Optimized GeoTIFF
# (Requires RasterRendering service to be enabled in the active GIS)
raster = Raster("https://sentinel-cogs.s3.us-west-2.amazonaws.com/sentinel-s2-l2a-cogs/43/M/BP/2021/6/S2A_43MBP_20210622_0_L2A/B08.tif",
gis=gis)

# Overlay a local .tif file
raster = Raster(r"./data/Amberg.tif")

# Overlay a 1-channel .gdb file with the "Orange Red" colormap at 85% opacity
cmap = "OrRd",
opacity = 0.85)

# Overlay a local .jpg file by manually specifying its extent
raster = Raster("./data/newark_nj_1922.jpg",
extent = {"xmin":-74.22655,
"ymin":40.712216,
"xmax":-74.12544,
"ymax":40.773941,
"spatialReference":{"wkid":4326}})

property RAT

Return the attribute table as a dictionary if the table exists

add_dimension(variable, new_dimension_name, dimension_value, dimension_attributes=None)

Adds a new dimension to a given variable.

(Operation is not supported on image services)

 Argument Description variable Required string. variable to which the new dimesnion is to be added new_dimension_name Required string. name of the new dimesnion to be added dimension_value Required string. dimension value dimension_attributes optional attributes of the new dimension like Description, Unit etc.
Returns

The variable names and their dimensions in the multidimensional raster

# Usage Example: Adds a new dimension to the specified variable of multidimensional raster

raster1 = Raster(r"/path/to/mult_dim.crf")

new_dimension_name="new_dimension_name",
dimension_value="dimension_value")

append_slices(md_raster=None)

Appends the slices from another multidimensional raster.

(Operation is not supported on image services)

 Arguments Description md_raster Required multidimensional raster. The multidimensional raster containing the slices to be appended. This raster must have the same variables, with the same dimension names, as the target raster. The cell sizes, extents, and spatial reference systems must also match. The slices in this raster must be for dimension values that follow the dimension values of the slices in the target raster. If a variable has two dimensions, slices will be appended along one dimension. The other dimension must have the same number of slices as the dimension in the target raster. For example, if a salinity variable contains slices over time and depth dimensions, time slices can be appended to another salinity multidimensional raster but only if the same number of depth slices exist in both rasters.
Returns (string)

A string containing the variable names and the associated dimensions in the multidimensional raster. For example, if the resulting raster has 10 time slices with precipitation data, it will return ‘prcp(StdTime=10)’.

# Usage Example: Append slices to target raster from source multidimensional raster

target_raster.append_slices(md_raster=source_raster_obj)

property band_count

returns the band count of the raster

property band_names

returns the band names of the raster

property block_size

returns the block size of the raster

property catalog_path

The full path and the name of the referenced raster.

property cmap

When displaying a 1 band raster in a MapView widget, what matplotlib colormap to apply to the raster.

Value must be a str. See arcgis.mapping.symbol.display_colormaps() for a list of compatible values.

property columns

returns number of columns in the raster

property compression_type

returns the compression type of the raster

draw_graph(show_attributes=False, graph_size='14.25, 15.25')

Displays a structural representation of the function chain and it’s raster input values. If show_attributes is set to True, then the draw_graph function also displays the attributes of all the functions in the function chain, representing the rasters in a blue rectangular box, attributes in green rectangular box and the raster function names in yellow.

 Argument Description show_attributes optional boolean. If True, the graph displayed includes all the attributes of the function and not only it’s function name and raster inputs Set to False by default, to display only he raster function name and the raster inputs to it. graph_size optional string. Maximum width and height of drawing, in inches, seperated by a comma. If only a single number is given, this is used for both the width and the height. If defined and the drawing is larger than the given size, the drawing is uniformly scaled down so that it fits within the given size.
Returns

Graph

# Usage Example 1: Draws the function chain applied on the Raster object created from an Image service.

service_url = gis.content.search("my_image_service", item_type="Imagery Layer")[0].url
raster = Raster(service_url, gis=gis)
grayscale_raster = grayscale(raster=raster)
invert_raster = boolean_not(rasters=[grayscale_raster])
invert_raster.draw_graph(show_attributes=True)

# Usage Example 2:  Draws the function chain applied on the Raster object created from local dataset

raster = Raster(r"/path/to/raster")
ndvi_raster = ndvi(raster=raster, band_indexes="5 6")
ndvi_raster.draw_graph(show_attributes=True)

export_image(bbox=None, image_sr=None, bbox_sr=None, size=None, time=None, export_format='jpgpng', pixel_type=None, no_data=None, no_data_interpretation='esriNoDataMatchAny', interpolation=None, compression=None, compression_quality=None, band_ids=None, mosaic_rule=None, rendering_rule=None, f='image', save_folder=None, save_file=None, compression_tolerance=None, adjust_aspect_ratio=None, lerc_version=None)

The export_image operation is performed on a raster layer to visualise it.

 Arguments Description bbox Optional dict or string. The extent (bounding box) of the exported image. Unless the bbox_sr parameter has been specified, the bbox is assumed to be in the spatial reference of the raster layer. The bbox should be specified as an arcgis.geometry.Envelope object, it’s json representation or as a list or string with this format: ‘, , , ’ If omitted, the extent of the raster layer is used image_sr optional string, SpatialReference. The spatial reference of the exported image. The spatial reference can be specified as either a well-known ID, it’s json representation or as an arcgis.geometry.SpatialReference object. If the image_sr is not specified, the image will be exported in the spatial reference of the raster. bbox_sr optional string, SpatialReference. The spatial reference of the bbox. The spatial reference can be specified as either a well-known ID, it’s json representation or as an arcgis.geometry.SpatialReference object. If the image_sr is not specified, bbox is assumed to be in the spatial reference of the raster. (Available only when image_server engine is used) size optional list. The size (width * height) of the exported image in pixels. If size is not specified, an image with a default size of 400*450 will be exported. Syntax: list of [width, height] time optional datetime.date, datetime.datetime or timestamp string. The time instant or the time extent of the exported image. Time instant specified as datetime.date, datetime.datetime or timestamp in milliseconds since epoch Syntax: time= Time extent specified as list of [, ] For time extents one of or could be None. A None value specified for start time or end time will represent infinity for start or end time respectively. Syntax: time=[, ] ; specified as datetime.date, datetime.datetime or timestamp (Available only when image_server engine is used) export_format optional string. The format of the exported image. The default format is jpgpng. The jpgpng format returns a JPG if there are no transparent pixels in the requested extent; otherwise, it returns a PNG (png32). Values: jpgpng,png,png8,png24,jpg,bmp,gif,tiff,png32,bip,bsq,lerc pixel_type optional string. The pixel type, also known as data type, pertains to the type of values stored in the raster, such as signed integer, unsigned integer, or floating point. Integers are whole numbers, whereas floating points have decimals. (Available only when image_server engine is used) no_data optional float. The pixel value representing no information. (Available only when image_server engine is used) no_data_interpretation optional string. Interpretation of the no_data setting. The default is NoDataMatchAny when no_data is a number, and NoDataMatchAll when no_data is a comma-delimited string: NoDataMatchAny,NoDataMatchAll. (Available only when image_server engine is used) interpolation optional string. The resampling process of extrapolating the pixel values while transforming the raster dataset when it undergoes warping or when it changes coordinate space. One of: RSP_BilinearInterpolation, RSP_CubicConvolution, RSP_Majority, RSP_NearestNeighbor (Available only when image_server engine is used) compression optional string. Controls how to compress the image when exporting to TIFF format: None, JPEG, LZ77. It does not control compression on other formats. (Available only when image_server engine is used) compression_quality optional integer. Controls how much loss the image will be subjected to by the compression algorithm. Valid value ranges of compression quality are from 0 to 100. (Available only when image_server engine is used) band_ids optional list. If there are multiple bands, you can specify a single band to export, or you can change the band combination (red, green, blue) by specifying the band number. Band number is 0 based. Specified as list of ints, eg [2,1,0] (Available only when image_server engine is used) mosaic_rule optional dict. Specifies the mosaic rule when defining how individual images should be mosaicked. When a mosaic rule is not specified, the default mosaic rule of the image layer will be used (as advertised in the root resource: defaultMosaicMethod, mosaicOperator, sortField, sortValue). rendering_rule optional dict. Specifies the rendering rule for how the requested image should be rendered. f optional string. The response format. default is json Values: json,image,kmz,numpy_array Note: If f=”numpy_array” and if the raster is a single or multiband raster, the dimensions of the array will be rows, columns, and number of bands. If the raster is a multidimensional raster, the dimensions of the array will be number of slices, rows, columns, and number of bands. LERC needs to be installed to export image service as numpy array. If f=”image”, the bytes of the exported image are returned unless save_folder and save_file parameters are also passed, in which case the image is written to the specified file (Available only when image_server engine is used) save_folder optional string. The folder in which the exported image is saved when f=image (Available only when image_server engine is used) save_file optional string. The file in which the exported image is saved when f=image (Available only when image_server engine is used) compression_tolerance optional float. Controls the tolerance of the lerc compression algorithm. The tolerance defines the maximum possible error of pixel values in the compressed image. Example: compression_tolerance=0.5 is loseless for 8 and 16 bit images, but has an accuracy of +-0.5 for floating point data. The compression tolerance works for the LERC format only. (Available only when image_server engine is used) adjust_aspect_ratio optional boolean. Indicates whether to adjust the aspect ratio or not. By default adjust_aspect_ratio is true, that means the actual bbox will be adjusted to match the width/height ratio of size paramter, and the response image has square pixels. (Available only when image_server engine is used) lerc_version optional integer. The version of the Lerc format if the user sets the format as lerc. Values: 1 or 2 If a version is specified, the server returns the matching version, or otherwise the highest version available. (Available only when image_server engine is used)
Returns

The raw raster data

# Usage Example: Creates Raster object from a local dataset location and exports the image.

raster_source = Raster(r"/path/to/raster")
raster_source.export_image(size=[1000, 1000])

property extent

Area of interest. Used for displaying the imagery layer when queried

property format

returns the raster format

static from_stac_item(stac_item, request_params=None, engine=None, *, gis=None)

Create a Raster object from a SpatioTemporal Asset Catalog (STAC) Item.

 Arguments Description stac_item Required string or pystac.Item object. If string, then it should be the URL of the STAC item. It can be a Static STAC item URL or a STAC API Item URL. Note: Currently only Landsat-8 STAC Items are supported for this method. Example: request_params Optional dictionary. This parameter can be used to set the properties for making the STAC Item request. These are the requests.get() method parameters and values will be specified in dictionary format. This parameter is honoured when the stac_item parameter is set to a string (URL). Example:{“verify”:False} engine Optional string. The backend engine to be used for Raster processing. Possible options: “arcpy” : Use the arcpy engine for processing. “image_server” : Use the Image Server engine for processing (This is the default). Example:“image_server” Note: When using image_server engine, RasterRendering service should be enabled in the active GIS connection. gis Optional arcgis.gis.GIS object. The GIS of the Raster object.
Returns

A Raster object

# Usage Example: Creating a Raster object from a STAC Item.

ras = Raster.from_stac_item(stac_item=stac_item_url,
gis=gis)

get_colormap(variable_name=None)

Returns the color map of the raster. If the raster is multidimensional, returns the color map of a variable.

 Argument Description variable_name Optional string. The variable name of the multidimensional raster. If a variable is not specified and the raster is multidimensional, the color map of the first variable will be returned.
Returns (dict)

The colormap of the raster or the given variable.

# Usage Example: Returns the colormap of specificied variable of a multidimensional raster

raster1.get_colormap(variable_name="variable_name")

get_dimension_attributes(variable_name, dimension_name)

Returns the attribute information of a dimension within a variable, e.g., min value, max value, unit, etc.

 Arguments Description variable_name required string. the name of the variable dimension_name required string. the name of the dimension
Returns

dict. The attribute information of the given dimension within the given variable.

# Usage Example: Returns specified dimension attribute dictionary for given variable

raster1.get_dimension_attributes(variable_name="variable_name",
dimension_name="dimension_name")

get_dimension_names(variable_name)

Returns a list of the dimension names that the variable contains.

 Arguments Description variable_name required string. the name of the variable
Returns

list. The dimension names that the given variable contains

# Usage Example: Returns the list of the dimension names that the variable "variable_name" contains

raster1.get_dimension_names(variable_name="variable_name")

get_dimension_values(variable_name, dimension_name, return_as_datetime_object=False)

Returns a list of values along the given dimension within the given variable.

 Argument Description variable_name Required string. the name of the variable dimension_name Required string. the name of the dimension return_as_datetime_object Set to True, to return the dimension values as datetime object. Valid only if the dimension name is StdTime
Returns

list. The dimension values along the given dimension within the given variable.

# Usage Example: Returns the values of a given dimension associated with the given variable.

raster1.get_dimension_values(variable_name="variable_name",
dimension_name="dimension_name")

get_histograms(variable_name=None)

Returns the histograms of the raster. If the raster is multidimensional, it returns the histogram of a variable. If the raster is multiband, it returns the histogram of each band.

 Argument Description variable_name Optional string. The variable name of the multidimensional raster dataset. If a variable is not specified and the raster is multidimensional, the histogram of the first variable will be returned.
Returns (list of dict)

The histogram values of the raster or variable.

# Usage Example: Returns the histograms of the raster

raster1.get_histograms()

get_property(property_name)

Returns the value of the given property.

 Arguments Description property_name required string. the name of the property
Returns

string.

# Usage Example 1: Returns value of the property

raster2.get_property(property_name="property_name")

get_raster_bands(band_ids_or_names=None)

Returns a Raster object for each band specified in a multiband raster.

 Arguments Description band_ids_or_names required list. The index number or names of the bands to return as Raster objects. If not specified, all bands will be extracted.
Returns

Raster object

# Usage Example: Generates the raster pertaining to the first band

raster1 = Raster(r"./data/Amberg.tif")
raster1.get_raster_bands(band_ids_or_names=[0])

get_statistics(variable_name=None)

Returns the statistics of the raster. If the raster is multidimensional, returns the statistics of a variable.

 Argument Description variable_name Optional string. The variable name of the multidimensional raster dataset. If a variable is not specified and the raster is multidimensional, the statistics of the first variable will be returned.
Returns (dict)

The statistics of the raster or the given variable.

# Usage Example: Returns the statistics of the raster

raster1.get_statistics()

get_variable_attributes(variable_name)

Returns the attribute information of a variable, e.g., description, unit, etc.

 Arguments Description variable_name required string. the name of the variable
Returns

dict. The attribute information of the given variable.

# Usage Example: Returns variable attribute information

raster1.get_variable_attributes(variable_name="variable_name")

property has_RAT

Identifies if there is an associated attribute table: True if an attribute table exists, or False if no attribute table exists.

property height

returns height of the raster in the units of its spatial reference

property is_integer

returns True if the raster has integer type.

property is_multidimensional

returns True if the raster is multidimensional.

property is_temporary

returns True if the raster is temporary, or False if it is permanent.

property maximum

returns the maximum value in the referenced raster.

property mean

returns the mean value in the referenced raster.

property mean_cell_height

returns the cell size in the y direction.

property mean_cell_width

returns the cell size in the x direction.

property minimum

returns minimum value in the referenced raster.

property multidimensional_info

returns the multidimensional information of the raster dataset, including variable names, descriptions and units, and dimension names, units, intervals, units, and ranges.

property name

returns the name of the raster

property no_data_value

returns the NoData value of the raster

property no_data_values

returns the NoData value for each band in the multiband raster

property opacity

When displaying in a MapView widget, what opacity to apply. 0 is completely transparent, 1 is completely opaque. Default: 1

property path

The full path and name of the referenced raster.

property pixel_type

returns pixel type of the imagery layer

plot_histograms(geometry=None, pixel_size=None, time=None, bands=[], display_stats=True, plot_properties=None, subplot_properties=None)

Image histograms visually summarize the distribution of a continuous numeric variable by measuring the frequency at which certain values appear in the image. The x-axis in the image histogram is a number line that displays the range of image pixel values that has been split into number ranges, or bins. A bar is drawn for each bin, and the width of the bar represents the density number range of the bin; the height of the bar represents the number of pixels that fall into that range. Understanding the distribution of your data is an important step in the data exploration process.

plot_histograms() can be used for plotting the band-wise image histogram charts of any Raster object.

 Arguments Description geometry optional Polygon or Extent. A geometry that defines the geometry within which the histogram is computed. The geometry can be an envelope or a polygon. If not provided, then the full extent of the raster will be used for the computation. Note: This parameter is honoured if the raster uses “image_server” engine. pixel_size optional string or dictionary. The pixel level being used (or the resolution being looked at). If pixel size is not specified, then pixel_size will default to the base resolution of the dataset. The structure of the pixel_size parameter is the same as the structure of the point object returned by the ArcGIS REST API. In addition to the dictionary structure, you can specify the pixel size with a comma-separated string. Syntax: - dictionary structure: pixel_size={point} - Point simple syntax: pixel_size=’,’ Examples: - pixel_size={“x”: 0.18, “y”: 0.18} - pixel_size=’0.18,0.18’ Note: This parameter is honoured if the raster uses “image_server” engine. time optional datetime.date, datetime.datetime or timestamp string. The time instant or the time extent of the exported image. Time instant specified as datetime.date, datetime.datetime or timestamp in milliseconds since epoch Syntax: time= Time extent specified as list of [, ] For time extents one of or could be None. A None value specified for start time or end time will represent infinity for start or end time respectively. Syntax: time=[, ] ; specified as datetime.date, datetime.datetime or timestamp Added at 10.8 Note: This parameter is honoured if the raster uses “image_server” engine. bands optional list of band indices. By default takes the first band (band index - 0). Image histogram charts are plotted for these specific bands. Example: [0,2,3] display_stats optional boolean. Specifies whether to plot the band-wise statistics along with the histograms. Some basic descriptive statistics are calculated and displayed on histograms. The mean and median are displayed with one line each, and one standard deviation above and below the mean is displayed using two lines. False - The statistics will not be displayed along with the histograms. True - The statistics will be displayed along with the histograms. This is the default. plot_properties optional dictionary. This parameter can be used to set the figure properties. These are the matplotlib.pyplot.figure() parameters and values specified in dict format. Example: {“figsize”:(15,15)} subplot_properties optional list or dictionary. This parameter can be used to set band-wise histogram (subplot) display properties. These are the matplotlib.axes.Axes.bar() parameters and values specified in dictionary format. Example: [ {“color”:”r”}, {“color”:”g”}, {“color”:”b”,”edgecolor”:”w”} ] Note: matplotlib.axes.Axes.bar() parameters: ‘’x’, ‘height’ or ‘align’ cannot be passed into subplot_properties.

Tip

When working with multidimensional rasters, you can use the multidimensional_filter() raster function on the Raster object for slicing the data along defined variables and dimensions. plot_histograms() can then be used on the output raster returned upon applying the filter.

Returns

None

# Usage Example: Plots histograms of the raster with specified resolution and bands

raster1.plot_histograms(pixel_size="0.18, 0.18", bands=[1, 2, 3])

property properties

returns the property name and value pairs in the referenced raster

property raster_info

Returns information about the ImageryLayer such as bandCount, extent , pixelSizeX, pixelSizeY, pixelType

read(upper_left_corner=(0, 0), origin_coordinate=None, ncols=0, nrows=0, nodata_to_value=None, cell_size=None)

read a numpy array from the calling raster

 Arguments Description upper_left_corner 2-D tuple. a tuple with 2 values representing the number of pixels along x and y direction relative to the origin_coordinate. E.g., (2, 0), means that the real origin to extract the array is 2 pixels away in x direction from the origin_coordinate origin_coordinate 2-d tuple (X, Y). The x and y values are in map units. If no value is specified, the top left corner of the calling raster, ncols integer. the number of columns from the real origin in the calling raster to convert to the NumPy array. If no value is specified, the number of columns of the calling raster will be used. Default: None nrows integer. the number of rows from the real origin in the calling raster to convert to the NumPy array. If no value is specified, the number of rows of the calling raster will be used. Default: None nodata_to_value numeric. pixels with nodata values in the raster would be assigned with the given value in the NumPy array. If no value is specified, the NoData value of the calling raster will be used. Default: None cell_size 2-D tuple. a tuple with 2 values shows the x_cell_size and y_cell_size, e.g., cell_size = (2, 2). if no value is specified, the original cell size of the calling raster will be used. Otherwise, pixels would be resampled to the requested cell_size
Returns

numpy.ndarray. If self is a multidimensional raster, the array has shape (slices, height, width, bands)

# Usage Example: Reads a numpy array from (2, 2) pixels away from the origin of the raster


property read_only

returns whether the raster cell values are writable or not using the [row, column] notation. When this property is True, they are not writable. Otherwise, they are writable.

remove_variables(variable_names)

Removes the given variables.

(Operation is not supported on image services)

 Arguments Description variable_names required list. the list of variables to be removed
Returns

list. a list of all variables.

# Usage Example: Removes specified variable and returns the list of remaining variables in the raster dataset.

raster1.remove_variables(variable_names=["variable_name_1", "variable_name_2"])

rename_variable(current_variable_name, new_variable_name)

Rename the given variable name.

(Operation is not supported on image services)

 Argument Description current_variable_name Required string. the name of the variable to be renamed new_variable_name Required string. the new variable name
Returns

list. The dimension names that the given variable contains

# Usage Example: Rename variable name

raster1.rename_variable(current_variable_name="current_variable_name",
new_variable_name="new_variable_name")

property rows

returns number of rows in the raster

save(output_name=None, for_viz=False, process_as_multidimensional=None, build_transpose=None, gis=None, future=False, **kwargs)

When run using image_server engine, save() persists this raster to the GIS as an Imagery Layer item. If for_viz is True, a new Item is created that uses the applied raster functions for visualization at display resolution using on-the-fly image processing. If for_viz is False, distributed raster analysis is used for generating a new raster information product by applying raster functions at source resolution across the extent of the output imagery layer.

When run using arcpy engine, save() Persists this raster to location specified in output_name.

 Argument Description output_name optional string. When run using image_server engine, specify output name. If not provided, an Imagery Layer item is created by the method and used as the output. You can pass in the name of the output raster that should be created by this method to be used as the output for the tool. Alternatively, if for_viz is False, you can pass in an existing Image Layer Item from your GIS to use that instead. A RuntimeError is raised if a layer by that name already exists When run using arcpy engine, output_name is the name string representing the output location. for_viz optional boolean. If True, a new Item is created that uses the applied raster functions for visualization at display resolution using on-the-fly image processing. If for_viz is False, distributed raster analysis is used for generating a new raster information product for use in analysis and visualization by applying raster functions at source resolution across the extent of the output raster. (Available only when image_server engine is used) process_as_multidimensional Optional bool. If the input is multidimensional raster, the output will be processed as multidimensional if set to True build_transpose Optional bool, if set to true, transforms the output multidimensional raster. Valid only if process_as_multidimensional is set to True gis optional arcgis.gis.GIS object. The GIS to be used for saving the output. Keyword only parameter. (Available only when image_server engine is used) future Optional boolean. If True, the result will be a GPJob object and results will be returned asynchronously. Keyword only parameter. (Available only when image_server engine is used) tiles_only In ArcGIS Online, the default output image service for this function would be a Tiled Imagery Layer. To create Dynamic Imagery Layer as output on ArcGIS Online, set tiles_only parameter to False. Function will not honor tiles_only parameter in ArcGIS Enterprise and will generate Dynamic Imagery Layer by default. (Available only when image_server engine is used)
Returns

String representing the location of the output data

# Usage Example 1: Saves the local raster output to a new location (usecase for arcpy engine rasters)

raster1.save(output_name=r"/path/to/output_location/raster.crf",
process_as_multidimensional=True)

# Usage Example 2: Saves the raster to the active GIS as an Imagery Layer Item (usecase for image_server engine rasters)

raster2.save(output_name="output_imagery_layer_name",
gis=gis)

set_colormap(color_map, variable_name=None)

Sets the color map for the raster. If the raster is multidimensional, it sets the color map for a variable.

(Operation is not supported on image services)

 Argument Description color_map Optional (string, dict): The color map to apply to the raster. This can be a string indicating the name of the color map or color ramp to use, for example, NDVI or Yellow To Red, respectively. This can also be a Python dictionary with a custom color map or color ramp object. For example: customized colormap object, e.g., {‘values’: [0, 1, 2, 3, 4, 5, 6], ‘colors’: [‘#000000’, ‘#DCFFDF’, ‘#B8FFBE’, ‘#85FF90’, ‘#50FF60’,’#00AB10’, ‘#006B0A’]} colorramp name, e.g., “Yellow To Red” colormap name, e.g., “NDVI” customized colorramp object, e.g., {“type”: “algorithmic”, “fromColor”: [115, 76, 0, 255],”toColor”: [255, 25, 86, 255], “algorithm”: “esriHSVAlgorithm”} variable_name Optional string. The variable name of the multidimensional raster dataset. If a variable is not specified and the raster is multidimensional, the color map of the first variable will be set.
Returns

None

# Usage Example: Sets "NDVI" color map for the raster

raster1.set_colormap(color_map="NDVI")

set_engine(engine)

Can be used to change the back end engine

set_histograms(histogram_obj, variable_name=None)

Set the histogram for the raster or a given variable if the raster is multidimensional.

(Operation is not supported on image services)

 Argument Description histogram_obj Optional list of histogram objects(dict), If the raster is multiband, the histogram for each band will be set with each dictionary in the list. The first band will use the histogram in the first dictionary. The second band will use the histogram in the second dictionary, and so on. size - The number of bins in the histogram min - The minimum pixel value max - The maximum pixel value counts - A list containing the number of pixels in each bin, in the order of bins For example: [{‘size’: number_of_bins, ‘min’: min_val, ‘max’: max_val, ‘counts’: [pixel_count_at_each_bin, …]}, …] variable_name Optional string. The variable name of the multidimensional raster dataset. If a variable is not specified and the raster is multidimensional, the histogram will be set for the first variable.
Returns

None

# Usage Example: Sets specified histograms for the raster

raster1.set_histograms(histogram_obj=[{"size": number_of_bins,
"min": min_val,
"max": max_val,
"counts": [pixel_count_at_each_bin]}])

set_property(property_name, property_value)

Add a customized property to the raster. If the property name exists, the existing property value will be overwritten.

(Operation is not supported on image services)

 Arguments Description property_name required string. The property name of the raster property_value required string. The value to assign to the property.
Returns

None

# Usage Example: Add user-defined property name and value to raster

raster1.set_property(property_name="property_name",
property_value="property_value")

set_statistics(statistics_obj, variable_name=None)

Sets the statistics for the raster. If the raster is multiband, it sets the statistics for each band. If the raster is multidimensional, it sets the statistics for a variable.

(Operation is not supported on image services)

 Argument Description statistics_obj Optional list of statistics objects. A list of Python dictionaries containing statistics and corresponding values to set. For example, [{‘min’: 10, ‘max’: 20}] sets the minimum and maximum pixel values. If the raster is multiband, the statistics for each band will be set with each dictionary in the list. The first band will use the statistics in the first dictionary. The second band will use the statistics in the second dictionary, and so on. min - The minimum pixel value max - The maximum pixel value mean - The mean pixel value median - The median pixel value standardDeviation - The standard deviation of the pixel values count - The total number of pixels skipX - The horizontal skip factor skipY - The vertical skip factor For example: [{‘min’: val, ‘max’: val, ‘mean’: val, ‘standardDeviation’: val, ‘median’: val, ‘mode’: val, ‘count’: val}, …] variable_name Optional string. The variable name of the multidimensional raster. If a variable is not specified and the raster is multidimensional, the statistics of the first variable will be set.
Returns

None

# Usage Example: Sets statistics of the raster

raster1.set_statistics(statistics_obj=[{"min": val,
"max": val,
"mean": val,
"standardDeviation": val}],
variable_name="variable_name")

set_variable_attributes(variable_name, variable_attributes)

Sets the attribute information of a variable in a multidimensional raster (for example, description, unit, and so on).

(Operation is not supported on image services)

 Arguments Description variable_name Required string. The variable name of the multidimensional raster dataset. variable_attributes Required dict that contains attribute information to replace the current attribute information of the variable. For example: {“Description”: “Daily total precipitation”, “Unit”: “mm/day”}.
Returns (dict)

The attribute information of the variable.

# Usage Example: Sets variable attributes to the specified variable

raster1.set_variable_attributes(variable_name="variable_name",
variable_attributes={"attribute_1": "value_1",
"attribute_2": "value_2"})

property slices

returns the attribute information of each slice, including its variable name, dimension names, and dimension values returned as a list of dictionaries.

property spatial_reference

returns the spatial reference of the referenced raster.

property standard_deviation

returns the standard deviation of the values in the referenced raster.

summarize(geometry, pixel_size=None)

The result of this operation contains statistics of a Raster for a given geometry.

 Argument Description geometry Required Polygon or Extent. A geometry that defines the geometry within which the histogram is computed. The geometry can be an envelope or a polygon pixel_size optional string or dict. The pixel level being used (or the resolution being looked at). If pixel size is not specified, then pixel_size will default to the base resolution of the dataset. The raster at the specified pixel size in the mosaic dataset will be used for histogram calculation. Syntax: dictionary structure: pixel_size={point} Point simple syntax: pixel_size=’,’ Examples: pixel_size={“x”: 0.18, “y”: 0.18} pixel_size=’0.18,0.18’
Returns

dictionary. (Dictionary at each index represents the statistics of the corresponding band.)

[{
“min”: 0,
”max”: 9,
”mean”: 3.271703916996627,
”standardDeviation”: 1.961013669880657,
”median”: 4,
”mode”: 4,
”skipX”: 1,
”skipY”: 1,
”count”: 2004546
}]

# Usage Example: Summarize a raster at an area.

stats = raster.summarize(geometry=geom_obj)
mean_of_first_band = stats[0]["mean"]

property uncompressed_size

returns the size of the referenced raster dataset on disk.

property variable_names

returns the variable names in the multidimensional raster

property variables

returns the variable names and their dimensions in the multidimensional raster dataset. For example, a multidimensional raster containing temperature data over 24 months would return the following: [‘temp(StdTime=24)’]

property vmax

When displaying a 1 band raster with the cmap argument specified on a MapView, vmin and vmax define the data range that the colormap covers. This property is the upper end of that range.

property vmin

When displaying a 1 band raster with the cmap argument specified on a MapView, vmin and vmax define the data range that the colormap covers. This property is the lower end of that range.

property width

returns width of the raster in the units of its spatial reference

write(array, upper_left_corner=(0, 0), origin_coordinate=None, value_to_nodata=None)

write a numpy array to the calling raster.

(Operation is not supported on image services)

 Arguments Description array required numpy.ndarray. the array must be in the shape of (slices, height, width, bands) for writing a multidimensional raster and (height, width bands) for writing a normal raster upper_left_corner 2-D tuple.a tuple with 2 values representing the number of pixels along x and y direction that shows the position relative to the origin_coordinate. E.g., (2, 0), means that the position from which the numpy array will be written into the calling Raster is 2 pixels away in x direction from the origin_coordinate. Default value is (0, 0) origin_coordinate 2-d tuple (X, Y) from where the numpy array will be written into the calling Raster. The x- and y-values are in map units. If no value is specified, the top left corner of the calling raster, value_to_nodata numeric. The value in the numpy array assigned to be the NoData values in the calling Raster. If no value is specified, the NoData value of the calling Raster will be used. Default None
Returns

None

# Usage Example: Write a numpy array (2, 2) pixels away from the origin to the raster

raster1.write(upper_left_corner=(2, 2))


## RasterCatalogItem¶

class arcgis.raster.RasterCatalogItem(url, imglyr, initialize=True)

Represents a single catalog item on an Image Layer. This class is only to be used with Imagery Layer objects that have ‘Catalog’ in the layer’s capabilities property.

 Argument Description url required string. Web address to the catalog item. imglyr required ImageryLayer. The imagery layer object. initialize optional boolean. Default is true. If false, the properties of the item will not be loaded until requested.
property ics

The raster ics property returns the image coordinate system of the associated raster in an image layer. The returned ics can be used as the SR parameter.

property ics_to_pixel

returns coefficients to build up mathematic model for geometric transformation. With this transformation, ICS coordinates based from the catalog item raster can be used to calculate the original column and row numbers on the corresponding image.

image(bbox, return_format='JSON', bbox_sr=None, size=None, image_sr=None, image_format='png', pixel_type=None, no_data=None, interpolation=None, compression=75)

The image() method returns a composite image for a single raster catalog item. You can use this method for generating dynamic images based on a single catalog item. This method provides information about the exported image, such as its URL, width and height, and extent. Apart from the usual response formats of html and json, you can also request a format called image for the image. When you specify image as the format, the server responds by directly streaming the image bytes to the client. With this approach, you don’t get any information associated with the image other than the actual image.

 Arguments Description return_format optional string. The response can either be IMAGER or JSON. Image will return the image file to disk where as the JSON value will The default value is JSON. bbox required string. The extent (bounding box) of the exported image. Unless the bbox_sr parameter has been specified, the bbox is assumed to be in the spatial reference of the image layer. Syntax: , , , Example: bbox=-104,35.6,-94.32,41 bbox_sr optional string. The spatial reference of the bbox. size optional string.The size (width * height) of the exported image in pixels. If the size is not specified, an image with a default size of 400 * 400 will be exported. Syntax: , Example: size=600,550 image_sr optional string/integer. The spatial reference of the image. format optional string. The format of the exported image. The default format is png. Values: png, png8, png24, jpg, bmp, gif pixel_type optional string. The pixel type, also known as data type, that pertains to the type of values stored in the raster, such as signed integer, unsigned integer, or floating point. Integers are whole numbers; floating points have decimals. Values: C128, C64, F32, F64, S16, S32, S8, U1, U16, U2, U32, U4, U8, UNKNOWN no_data optional float. The pixel value representing no information. interpolation optional string. The resampling process of extrapolating the pixel values while transforming the raster dataset when it undergoes warping or when it changes coordinate space. Values: RSP_BilinearInterpolation, RSP_CubicConvolution, RSP_Majority, RSP_NearestNeighbor compression optional integer. Controls how much loss the image will be subjected to by the compression algorithm. Valid value ranges of compression quality are from 0 to 100.
property info

The info property returns information about the associated raster such as its width, height, number of bands, and pixel type.

property key_properties

The raster key_properties property returns key properties of the associated raster in an image layer.

property metadata

The metadata property returns metadata of the image layer or a raster catalog item. The output format is always XML.

property properties

returns the object properties

property thumbnail

returns a thumbnail of the current item

## RasterManager¶

class arcgis.raster.RasterManager(imglyr)

This class allows users to update, add, and delete rasters to an ImageryLayer object. The functions are only available if the layer has ‘Edit’ on it’s capabilities property.

Note

This class is not created by users directly. An instance of this class, called rasters , is available as a property of an ImageryLayer object. Users call methods on this rasters object to update, add and delete rasters from an ImageryLayer

 Argument Description imglyr required ImageryLayer. The imagery layer object where ‘Edit’ is in the capabilities.
add(raster_type, item_ids=None, service_url=None, compute_statistics=False, build_pyramids=False, build_thumbnail=False, minimum_cell_size_factor=None, maximum_cell_size_factor=None, attributes=None, geodata_transforms=None, geodata_transform_apply_method='esriGeodataTransformApplyAppend')

This operation is supported at 10.1 and later. The Add Rasters operation is performed on an image layer method. The Add Rasters operation adds new rasters to an image layer (POST only). The added rasters can either be uploaded items, using the item_ids parameter, or published services, using the service_url parameter. If item_ids is specified, uploaded rasters are copied to the image Layer’s dynamic image workspace location; if the service_url is specified, the image layer adds the URL to the mosaic dataset no raster files are copied. The service_url is required input for the following raster types: Image Layer, Map Service, WCS, and WMS.

Returns

dictionary

delete(raster_ids)

The Delete Rasters operation deletes one or more rasters in an image layer.

 Argument Description raster_ids required string. The object IDs of a raster catalog items to be removed. This is a comma seperated string. example 1: raster_ids=’1,2,3,4’ # Multiple IDs example 2: raster_ids=’10’ # single ID
Returns

dictionary

update(raster_id, files=None, item_ids=None, service_url=None, compute_statistics=False, build_pyramids=False, build_thumbnail=False, minimum_cell_size_factor=None, maximum_cell_size_factor=None, attributes=None, footprint=None, geodata_transforms=None, apply_method='esriGeodataTransformApplyAppend')

The Update Raster operation updates rasters (attributes and footprints, or replaces existing raster files) in an image layer. In most cases, this operation is used to update attributes or footprints of existing rasters in an image layer. In cases where the original raster needs to be replaced, the new raster can either be items uploaded using the items parameter or URLs of published services using the serviceUrl parameter.

 Argument Description raster_ids required integer. The object IDs of a raster catalog items to be updated. files optional list. Local source location to the raster to replace the dataset with. Example: [r”data.tiff”] item_ids optional string. The uploaded items (raster files) being used to replace existing raster. service_url optional string. The URL of the layer to be uploaded to replace existing raster data. The image layer will add this URL to the mosaic dataset. The serviceUrl is required for the following raster types: Image Layer, Map Service, WCS, and WMS. compute_statistics If true, statistics for the uploaded raster will be computed. The default is false. build_pyramids optional boolean. If true, builds pyramids for the uploaded raster. The default is false. build_thumbnail optional boolean. If true, generates a thumbnail for the uploaded raster. The default is false. minimum_cell_size_factor optional float. The factor (times raster resolution) used to populate MinPS field (minimum cell size above which raster is visible). maximum_cell_size_factor optional float. The factor (times raster resolution) used to populate MaxPS field (maximum cell size below which raster is visible). footprint optional Polygon. A JSON 2D polygon object that defines the footprint of the raster. If the spatial reference is not defined, it will default to the image layer’s spatial reference. attributes optional dictionary. Any attribute for the uploaded raster. geodata_transforms optional string. The geodata transformations applied on the updated rasters. A geodata transformation is a mathematical model that performs geometric transformation on a raster. It defines how the pixels will be transformed when displayed or accessed, such as polynomial, projective, or identity transformations. The geodata transformations will be applied to the updated dataset. apply_method optional string. Defines how to apply the provided geodataTransform. The default is esriGeodataTransformApplyAppend. Values: esriGeodataTransformApplyAppend, esriGeodataTransformApplyReplace, esriGeodataTransformApplyOverwrite
Returns

dictionary

## RasterCollection¶

class arcgis.raster.RasterCollection(rasters=None, attribute_dict=None, where_clause=None, query_geometry=None, engine=None, gis=None, context=None)

The RasterCollection object allows a group of rasters to be sorted and filtered easily, and prepares a collection for additional processing and analysis.

 Argument Description rasters The input raster datasets. Supported inputs include a list of local or datastore rasters, a mosaic dataset, a multidimensional raster in Cloud Raster Format, a NetCDF file, or an image service. If you’re using a list of raster datasets, all rasters must have the same cell size and spatial reference. arcpy should be available if the input is a local raster dataset. attribute_dict Optional dict. attribute information to be added to each raster, when the input is a list of rasters. For each key-value pair, the key is the attribute name and the value is a list of values that represent the attribute value for each raster. For example, to add a name field to a list of three rasters, use {“name”: [“Landsat8_Jan”, “Landsat8_Feb”, “Landsat8_Mar”]}. where_clause Optional string. An expression that limits the records returned. query_geometry Optional. An object that filters the items such that only those that intersect with the object will be returned. engine Optional string. The backend engine to be used. Possible options: “arcpy” : Use the arcpy engine for processing. “image_server” : Use the Image Server engine for processing. gis Optional GIS of the RasterCollection object. context Optional. Additional properties to control the creation of RasterCollection. The context parameter would be honoured by all other collections created from this i.e., the map/filter outputs. The filter/map methods also support the context parameter which can be configured separately for each method. Currently available: query_boundary: The boolean value set to this option determines whether to add SHAPE field to the RasterCollection. The value in the SHAPE field represents the boundary/geometry of the raster. The query_boundary parameter is honoured only when the RasterCollection is created from a list of Rasters. True: Set query_boundary to True to add the SHAPE field to the RasterCollection. False: Set query_boundary to False to not add the SHAPE field to the RasterCollection. (Creation of RasterCollection would be faster) By default, query_boundary is set to True, i.e, SHAPE field will be added. Example: {“query_boundary”:True}
# Usage Example 1: Creates a raster collection from image service url
service_url = gis.content.search('my_rasters', item_type="Imagery Layer")[0].url

rc = RasterCollection(rasters=service_url, gis=gis)

# Usage Example 2: Creates a raster collection from rasters stored locally

ras1 = Raster(r"./data/ras1.tif")
ras2 = Raster(r"./data/ras2.tif")
ras3 = Raster(r"./data/ras3.tif")

ras_list = [ras1, ras2, ras3]

# Add attributes to the raster collection

acquisition_date = ["2016-01-01T00:00:00", "2016-02-01T00:00:00", "2016-03-01T00:00:00"]
name_list = ["Landsat8_Jan", "Landsat8_Feb", "Landsat8_Mar"]

rc = RasterCollection(rasters=ras_list,
attribute_dict={"name": name_list,
"AcquisitionDate": acquisition_date}
)

property count

returns the count of items in the RasterCollection

property fields

returns the fields available in the RasterCollection

filter_by(where_clause=None, query_geometry_or_extent=None, raster_query=None, context=None)

filter a raster collection based on attribute and/or spatial queries

 Argument Description where_clause Optional String. An SQL expression used to select a subset of rasters query_geometry_or_extent Optional Geometry object. Items in the collection that fails to intersect the given geometry will be excluded raster_query Optional string. An SQL expression used to select a subset of rasters by the raster’s key properties. context Optional dictionary. Additional properties to control the creation of RasterCollection. The default value for the context parameter would be the same as that of the context settings applied to the parent collection. Currently available: query_boundary: This boolean value set to this option determines whether to add SHAPE field to the RasterCollection. The value in the SHAPE field represents the boundary/geometry of the raster. The query_boundary parameter is honoured only when the RasterCollection is created from a list of Rasters. True: Set query_boundary to True to add the SHAPE field to the RasterCollection. False: Set query_boundary to False to not add the SHAPE field to the RasterCollection. (Creation of RasterCollection would be faster) Example: {“query_boundary”:True}
Returns

a RasterCollection object that only contains items sastisfying the queries

# Usage Example: Creates a Raster collection and filters rasters satisfying the raster query.

service_url = gis.content.search('my_image_service')[0].url
rc = RasterCollecton(service_url, gis=gis)

filtered_rc = rc.filter_by(raster_query="raster_query")

filter_by_attribute(field_name, operator, field_values, context=None)

Filters the collection of raster items by an attribute query and returns a raster collection containing only the items that satisfy the query.

 Argument Description field_name Required string. The field name to use in the filter. operator Required string. The keyword to filter the attributes. Keywords include the following: CONTAINS - The attribute in the field contains the specified string, list, or number. ENDS_WITH - The attribute ends with the specified string or number. EQUALS - The attribute equals the specified string, list, or number. GREATER_THAN - The attribute is greater than the specified number. IN - The attribute is one of the items in the specified list. LESS_THAN - The attribute is less than the specified number. NOT_CONTAINS - The attribute does not contain the specified string, list, or number. NOT_ENDS_WITH - The attribute does not end with the specified string or number. NOT_EQUALS - The attribute does not equal the specified string, list, or number. NOT_GREATER_THAN - The attribute is not greater than the specified number. NOT_IN - The attribute is not one of the items in the specified list. NOT_LESS_THAN - The attribute is not less than the specified number. NOT_STARTS_WITH - The attribute does not start with the specified string or number. STARTS_WITH - The attribute starts with the specified string or number. field_values Required object. The attribute value or values against which to compare. This can be specified as a string, a list, or a number. context Optional dictionary. Additional properties to control the creation of RasterCollection. The default value for the context parameter would be the same as that of the context settings applied to the parent collection. Currently available: query_boundary: This boolean value set to this option determines whether to add SHAPE field to the RasterCollection. The value in the SHAPE field represents the boundary/geometry of the raster. The query_boundary parameter is honoured only when the RasterCollection is created from a list of Rasters. True: Set query_boundary to True to add the SHAPE field to the RasterCollection. False: Set query_boundary to False to not add the SHAPE field to the RasterCollection. (Creation of RasterCollection would be faster) Example: {“query_boundary”:True}
Returns

a RasterCollection object that only contains items sastisfying the filter

# Usage Example 1: Filters the raster collection based on matching field name.

filtered_rc_attribute = rc.filter_by_attribute(field_name="Name",
operator="EQUALS",
field_values="field_values")

# Usage Example 2: Filters the raster collection based on unmatching field name.

filtered_rc_attribute2 = rc.filter_by_attribute(field_name="Name",
operator="NOT_EQUALS",
field_values="field_values")

filter_by_calendar_range(calendar_field, start, end=None, time_field_name='StdTime', date_time_format=None, context=None)

filter the raster collection by a calendar_field and its start and end value (inclusive). i.e. if you would like to select all the rasters that have the time stamp on Monday, specify calendar_field as ‘DAY_OF_WEEK’ and put start and end to 1.

 Argument Description calendar_field Required String, one of ‘YEAR’, ‘MONTH’, ‘QUARTER’, ‘WEEK_OF_YEAR’, ‘DAY_OF_YEAR’, ‘DAY_OF_MONTH’, ‘DAY_OF_WEEK’, ‘HOUR’ start Required integer. The start value of the calendar_field. For example, to filter all items that were collected in January, filtered_rc = rc.filter_by_calendar_range(calendar_field=”MONTH”, start=1). end Optional integer. The end value of the calendar_field. For example, to filter all items that were collected in the first 5 days of each year, filtered_rc = rc.filter_by_calendar_range(calendar_field=”DAY_OF_YEAR”, start=1, end=5) time_field_name Optional string. The name of the field that contains the time attribute for each item in the collection. The default is StdTime. date_time_format Optional string. The time format of the values in the time field. For example, if the input time value is “1990-01-31”, the date_time_format is “%Y-%m-%d”. context Optional dictionary. Additional properties to control the creation of RasterCollection. The default value for the context parameter would be the same as that of the context settings applied to the parent collection. Currently available: query_boundary: This boolean value set to this option determines whether to add SHAPE field to the RasterCollection. The value in the SHAPE field represents the boundary/geometry of the raster. The query_boundary parameter is honoured only when the RasterCollection is created from a list of Rasters. True: Set query_boundary to True to add the SHAPE field to the RasterCollection. False: Set query_boundary to False to not add the SHAPE field to the RasterCollection. (Creation of RasterCollection would be faster) Example: {“query_boundary”:True}
Returns

a RasterCollection object that only contains items sastisfying the filter

# Usage Example 1: Filters the raster collection to hold rasters from the month of January.

filtered_rc_month = rc2.filter_by_calendar_range(calendar_field="MONTH", start=1)

# Usage Example 2: Filter the raster collection over the years 2015-2020.

filtered_rc_years = rc2.filter_by_calendar_range(calendar_field="YEAR",
start=2015,
end=2020)

filter_by_geometry(query_geometry_or_extent, context=None)

Filters the collection of raster items so that only those that intersect with the geometry will be returned.

 Argument Description query_geometry_or_extent Required object that filters the items such that only those that intersect with the object will be returned. This can be specified with a Geometry object, Raster object, ImageryLayer object. context Optional dictionary. Additional properties to control the creation of RasterCollection. The default value for the context parameter would be the same as that of the context settings applied to the parent collection. Currently available: query_boundary: This boolean value set to this option determines whether to add SHAPE field to the RasterCollection. The value in the SHAPE field represents the boundary/geometry of the raster. The query_boundary parameter is honoured only when the RasterCollection is created from a list of Rasters. True: Set query_boundary to True to add the SHAPE field to the RasterCollection. False: Set query_boundary to False to not add the SHAPE field to the RasterCollection. (Creation of RasterCollection would be faster) Example: {“query_boundary”:True}
Returns

a RasterCollection object that only contains items sastisfying the filter

# Usage Example: Filters the raster collection based on specified geometry.

aoi = {
"spatialReference": {"wkid": 32610},
"xmax": 725000,
"xmin": 720000,
"ymax": 4300000,
"ymin": 4250000,
}

aoi_geometry = Geometry(aoi)

filtered_rc_geom = rc.filter_by_geometry(query_geometry_or_extent=aoi_geometry)

filter_by_raster_property(property_name, operator, property_values, context=None)

Filters the collection of raster items by a raster property query and returns a raster collection containing only the items that satisfy the query.

 Argument Description property_name Required string. The name of the property to use in the filter. operator Required string. The keyword to filter the attributes. Keywords include the following: CONTAINS - The attribute in the field contains the specified string, list, or number. ENDS_WITH - The attribute ends with the specified string or number. EQUALS - The attribute equals the specified string, list, or number. GREATER_THAN - The attribute is greater than the specified number. IN - The attribute is one of the items in the specified list. LESS_THAN - The attribute is less than the specified number. NOT_CONTAINS - The attribute does not contain the specified string, list, or number. NOT_ENDS_WITH - The attribute does not end with the specified string or number. NOT_EQUALS - The attribute does not equal the specified string, list, or number. NOT_GREATER_THAN - The attribute is not greater than the specified number. NOT_IN - The attribute is not one of the items in the specified list. NOT_LESS_THAN - The attribute is not less than the specified number. NOT_STARTS_WITH - The attribute does not start with the specified string or number. STARTS_WITH - The attribute starts with the specified string or number. property_values Required object. The property value or values against which to compare. This can be specified as a string, a list, or a number. context Optional dictionary. Additional properties to control the creation of RasterCollection. The default value for the context parameter would be the same as that of the context settings applied to the parent collection. Currently available: query_boundary: This boolean value set to this option determines whether to add SHAPE field to the RasterCollection. The value in the SHAPE field represents the boundary/geometry of the raster. The query_boundary parameter is honoured only when the RasterCollection is created from a list of Rasters. True: Set query_boundary to True to add the SHAPE field to the RasterCollection. False: Set query_boundary to False to not add the SHAPE field to the RasterCollection. (Creation of RasterCollection would be faster) Example: {“query_boundary”:True}
Returns

a RasterCollection object that only contains items sastisfying the filter

# Usage Example: Filters out rasters with a band count of 3 from the raster collection

filtered_rc = rc.filter_by_raster_property(property_name="BAND_COUNT",
operator="EQUALS",
property_values=3)

filter_by_time(start_time='', end_time='', time_field_name='StdTime', date_time_format=None, context=None)

filter a raster collection by time

 Argument Description start_time Optional String representation of the start time. end_time Optional String representation of the end time. time_field_name Optional string. the name of the field containing the time information for each item. Default: “StdTime” date_time_format Optional string. the time format that is used to format the time field values. Please ref the python date time standard for this argument (See this). Default is None and this means using the Pro standard time format ‘%Y-%m-%dT%H:%M:%S’ and ignoring the following sub-second. context Optional dictionary. Additional properties to control the creation of RasterCollection. The default value for the context parameter would be the same as that of the context settings applied to the parent collection. Currently available: query_boundary: This boolean value set to this option determines whether to add SHAPE field to the RasterCollection. The value in the SHAPE field represents the boundary/geometry of the raster. The query_boundary parameter is honoured only when the RasterCollection is created from a list of Rasters. True: Set query_boundary to True to add the SHAPE field to the RasterCollection. False: Set query_boundary to False to not add the SHAPE field to the RasterCollection. (Creation of RasterCollection would be faster) Example: {“query_boundary”:True}
Returns

a RasterCollection object that only contains items sastisfying the filter

# Usage Example: Filters the raster collection based on time parameters.

filtered_rc_time = rc.filter_by_time(start_time="1990-01-01 00:00:00",
end_time="1999-12-31 00:00:00",
time_field_name="AcquisitionDate")

static from_stac_api(stac_api, query=None, attribute_dict=None, request_method='POST', request_params=None, engine=None, *, gis=None)

Create a RasterCollection object from a SpatioTemporal Asset Catalog (STAC) API search query.

 Arguments Description stac_api Required string. URL of the STAC API root endpoint. The STAC API where the search needs to be performed. Note: Currently only Landsat-8 STAC Item queries are supported for this method. Example: query Optional dictionary. The GET/POST request query dictionary that can be used to query a STAC API’s search endpoint. (keys/values would depend on the specification of the STAC API in use and the request_method parameter value). For the “bbox” query parameter, arcgis.geometry.Envelope and arcgis.geometry.Polygon objects are also accepted (in any spatial reference). Example: { “collections”: [“landsat-8-l1-c1”], “bbox”: [-110,39.5,-105,40.5], “query”: {“eo:cloud_cover”: {“lt”: 30}}, “datetime”: “2020-10-05T00:00:00Z/2020-10-18T12:31:12Z”, “limit”: 10 } attribute_dict Optional dictionary. The attribute information to be added to each (STAC Item) raster returned from the query. For each key-value pair, the key is the attribute name, and the value is a list of values that represent the attribute value for each raster. Attribute values can also be collected from the STAC Items automatically using the STAC Item metadata information. It can be done by specifying the STAC Item property name for the Attribute of interest in this format: key : value -> Attribute display name : STAC item property name Example: { “Name”:”id”, “Sensor”:”platform”, “StdTime”:”datetime”, “Cloud Cover”:”eo:cloud_cover”, “Extent”:”bbox” } Note: If ‘Geometry’ is not specified in the attribute_dict then it would be automatically added for each Raster in the RasterCollection based on its STAC Item ‘geometry’ property and would be in Spatial reference: {'wkid':4326}. request_method Optional string. The HTTP request method used with the STAC API for making the search. Acceptable methods: GET POST (This is the default) Example:“POST” request_params This parameter can be used to set the properties for making the STAC API search request. These are the requests.post() or requests.get() method parameters and values will be specified in dictionary format. Example: { “verify”:True, “headers”:{“Authorization”: “Bearer access_token_string”} } engine Optional string. The backend engine to be used for Raster processing. Possible options: “arcpy” : Use the arcpy engine for processing. “image_server” : Use the Image Server engine for processing (This is the default). Example:“image_server” Note: When using image_server engine, RasterRendering service should be enabled in the active GIS connection. gis Optional arcgis.gis.GIS object. The GIS of the RasterCollection object.
Returns

A RasterCollection object

# Usage Example: Creating a RasterCollection object from making a query to a STAC API.

rc = RasterCollection.from_stac_api(stac_api=stac_api_url,
query={
"collections": ["landsat-8-l1-c1"],
"bbox": [-110,39.5,-105,40.5],
"query": {"eo:cloud_cover": {"lt": 30}},
"datetime": "2020-10-05T00:00:00Z/2020-10-18T12:31:12Z",
"limit": 10
},
attribute_dict={
"Name":"id",
"Sensor":"platform",
"StdTime":"datetime",
"Cloud Cover":"eo:cloud_cover",
"Spatial Reference":"proj:epsg",
"Extent":"bbox"
},
request_method="POST",
gis=gis)

static from_stac_catalog(stac_catalog, attribute_dict=None, request_params=None, engine=None, *, gis=None)

Create a RasterCollection object from a Static SpatioTemporal Asset Catalog (STAC).

 Arguments Description stac_catalog Required string or pystac.Catalog object. If string, then it should be the URL of the Static STAC (Catalog). Note: Currently only Landsat-8 STAC (Catalogs) are supported for this method. Example: attribute_dict Optional dictionary. The attribute information to be added to each (STAC Item) raster of the catalog. For each key-value pair, the key is the attribute name, and the value is a list of values that represent the attribute value for each raster. Attribute values can also be collected from the STAC Items automatically using the STAC Item metadata information. It can be done by specifying the STAC Item property name for the Attribute of interest in this format: key : value -> Attribute display name : STAC item property name Example: { “Name”:”id”, “Sensor”:”platform”, “StdTime”:”datetime”, “Cloud Cover”:”eo:cloud_cover”, “Extent”:”bbox” } Note: If ‘Geometry’ is not specified in the attribute_dict then it would be automatically added for each Raster in the RasterCollection based on its STAC Item ‘geometry’ property and would be in Spatial reference: {'wkid':4326}. request_params Optional dictionary. This parameter can be used to set the properties for making the STAC Item/Catalog requests. These are the requests.get() method method parameters and values will be specified in dictionary format. This parameter is honoured when the stac_catalog parameter is set to a string (URL). Example:{“verify”:False} engine Optional string. The backend engine to be used for Raster processing. Possible options: “arcpy” : Use the arcpy engine for processing. “image_server” : Use the Image Server engine for processing (This is the default). Example:“image_server” Note: When using image_server engine, RasterRendering service should be enabled in the active GIS connection. gis Optional arcgis.gis.GIS object. The GIS of the RasterCollection object.
Returns

A RasterCollection object

# Usage Example: Creating a RasterCollection object from a Static STAC.

rc = RasterCollection.from_stac_catalog(stac_catalog=stac_catalog_url,
attribute_dict={
"Name":"id",
"Sensor":"collection",
"StdTime":"datetime",
"Cloud Cover":"eo:cloud_cover",
"Extent":"bbox"
},
gis=gis)

get_field_values(field_name, max_count=0)

Returns the values of a specified field from the raster collection.

 Argument Description field_name Required string. The name of the field from which to extract values. max_count Optional integer. An integer that specifies the maximum number of field values to be returned. The values will be returned in the order that the raster items are ordered in the collection. If no value is specified, all the field values for the given field will be returned.
Returns

a list of values of the specified field from the raster collection.

majority(ignore_nodata=True)

Returns a raster object in which each band contains the pixel value that occurs most frequently for that band across all rasters in the raster collection.

For example, if there are ten raster items in the raster collection, each with four bands, the majority method will determine the pixel value that occurs most frequently across all raster items for band 1, for band 2, for band 3, and for band 4; a four-band raster is returned. Band numbers are matched between raster items using the band index, so the items in the raster collection must follow the same band order.

 Argument Description ignore_nodata Optional Boolean. Specifies whether NoData values are ignored. True : The method will include all valid pixels and ignore any NoData pixels. This is the default. False : The method will result in NoData if there are any NoData values.
Returns

a Raster object

map(func, context=None)

Maps a Python function over a raster collection.

 Argument Description func Required. The Python function to map over the raster collection. The return value of the function must be a dictionary in which one of the keys is raster. For example, {“raster”: output_raster_object, “name”: input_item_name[“name”]}. context Optional dictionary. Additional properties to control the creation of RasterCollection. The default value for the context parameter would be the same as that of the context settings applied to the parent collection. Currently available: query_boundary: This boolean value set to this option determines whether to add SHAPE field to the RasterCollection. The value in the SHAPE field represents the boundary/geometry of the raster. The query_boundary parameter is honoured only when the RasterCollection is created from a list of Rasters. True: Set query_boundary to True to add the SHAPE field to the RasterCollection. False: Set query_boundary to False to not add the SHAPE field to the RasterCollection. (Creation of RasterCollection would be faster) Example: {“query_boundary”:True}
Returns

a new RasterCollection created from the existing RasterCollection after applying the func on each item.

# Usage Example: This snippet maps grayscale function to each raster item in the raster collection.

rc_local = RasterCollection(r"./data/rasters.gdb/rasters")

def grayscale(item):
raster = item["Raster"]
gray = grayscale(raster)
return {"Raster": gray, "Name": item["Name"], "StdTime": item["AcquisitionDate"]}

gray_rc = rc_local.map(grayscale)

max(ignore_nodata=True)

Returns a raster object in which each band contains the maximum pixel values for that band across all rasters in the raster collection.

For example, if there are ten raster items in the raster collection, each with four bands, the max method will calculate the maximum pixel value that occurs across all raster items for band 1, band 2, band 3, and band 4; a four-band raster is returned. Band numbers are matched between raster items using the band index, so the items in the raster collection must follow the same band order.

 Argument Description ignore_nodata Optional Boolean. Specifies whether NoData values are ignored. True : The method will include all valid pixels and ignore any NoData pixels. This is the default. False : The method will result in NoData if there are any NoData values.
Returns

a Raster object

mean(ignore_nodata=True)

Returns a raster object in which each band contains the average pixel values for that band across all rasters in the raster collection.

For example, if there are ten raster items in the raster collection, each with four bands, the mean method will calculate the mean pixel value that occurs across all raster items for band 1, for band 2, for band 3, and for band 4; a four-band raster is returned. Band numbers are matched between raster items using the band index, so the items in the raster collection must follow the same band order.

 Argument Description ignore_nodata Optional Boolean. Specifies whether NoData values are ignored. True : The method will include all valid pixels and ignore any NoData pixels. This is the default. False : The method will result in NoData if there are any NoData values.
Returns

a Raster object

median(ignore_nodata=True)

Returns a raster object in which each band contains the median pixel values for that band across all rasters in the raster collection.

For example, if there are ten raster items in the raster collection, each with four bands, the median method will calculate the median pixel value that occurs across all raster items for band 1, for band 2, for band 3, and for band 4; a four-band raster is returned. Band numbers are matched between raster items using the band index, so the items in the raster collection must follow the same band order.

 Argument Description ignore_nodata Optional Boolean. Specifies whether NoData values are ignored. True : The method will include all valid pixels and ignore any NoData pixels. This is the default. False : The method will result in NoData if there are any NoData values.
Returns

a Raster object

min(ignore_nodata=True)

Returns a raster object in which each band contains the minimum pixel values for that band across all rasters in the raster collection.

For example, if there are ten raster items in the raster collection, each with four bands, the min method will calculate the minimum pixel value that occurs across all raster items for band 1, band 2, band 3, and band 4; a four-band raster is returned. Band numbers are matched between raster items using the band index, so the items in the raster collection must follow the same band order.

 Argument Description ignore_nodata Optional Boolean. Specifies whether NoData values are ignored. True : The method will include all valid pixels and ignore any NoData pixels. This is the default. False : The method will result in NoData if there are any NoData values.
Returns

a Raster object

mosaic(mosaic_method='FIRST')

Returns a Raster object in which all items in a raster collection have been mosaicked into a single raster.

 Argument Description mosaic_method Optional string. The method used to handle overlapping areas between adjacent raster items. Mosaic method options include the following: FIRST - Determines the pixel value from the first raster that is overlapping. LAST - Determines the pixel value from the last raster that is overlapping. MEAN - Determines the average pixel value from the two rasters that are overlapping. MIN - Determines the lower pixel value from the two raster datasets that are overlapping. MAX - Determines the higher pixel value from the two raster datasets that are overlapping. SUM - Determines the sum of pixel values from the two rasters that are overlapping. (The default value is FIRST)
Returns

a Raster object

quality_mosaic(quality_rc_or_list, statistic_type=None)

Returns a Raster object in which all items in a raster collection have been mosaicked into a single raster based on a quality requirement.

 Argument Description quality_rc_or_list Required. The raster collection or list of rasters to be used as quality indicators. For example, Landsat 8’s Band 1 is the Coastal/Aerosol band, which can be used to estimate the concentration of fine aerosol particles such as smoke and haze in the atmosphere. For a collection of Landsat 8 images, use the select_bands method to return a RasterCollection object containing only Band 1 from each raster item. The number of raster items in the quality_rc_or_list must match the number of raster items in the raster collection to be mosaicked. statistic_type Required string. The statistic used to compare the input collection or list of quality rasters. MAX - The highest pixel value in the input quality rasters will be the pixel value in the output raster. This is the default. MEDIAN - The median pixel value in the input quality rasters will be the pixel value in the output raster. MIN - The minimum pixel value in the input quality rasters will be the pixel value in the output raster. For example, to mosaic the input raster collection such that those with the lowest aerosol content are on top, use the MIN statistic type.
Returns

a Raster object

select_bands(band_ids_or_names, context=None)

Selects a list of bands from every raster item in a raster collection and returns a raster collection that contains raster items with only the selected bands.

 Argument Description band_ids_or_names Required. The names or index numbers of bands to be included in the returned raster items. This can be specified with a single string, integer, or a list of strings or integers. context Optional dictionary. Additional properties to control the creation of RasterCollection. The default value for the context parameter would be the same as that of the context settings applied to the parent collection. Currently available: query_boundary: This boolean value set to this option determines whether to add SHAPE field to the RasterCollection. The value in the SHAPE field represents the boundary/geometry of the raster. The query_boundary parameter is honoured only when the RasterCollection is created from a list of Rasters. True: Set query_boundary to True to add the SHAPE field to the RasterCollection. False: Set query_boundary to False to not add the SHAPE field to the RasterCollection. (Creation of RasterCollection would be faster) Example: {“query_boundary”:True}
Returns

a RasterCollection that contains raster items with only the selected bands.

set_engine(engine)

Can be used to change the back end engine

sort(field_name, ascending=True, context=None)

Sorts the collection of rasters by a field name and returns a raster collection that is in the order specified.

 Argument Description field_name Required string. The name of the field to use for sorting. ascending Optional bool. Specifies whether to sort in ascending or descending order. (The default value is True) context Optional dictionary. Additional properties to control the creation of RasterCollection. The default value for the context parameter would be the same as that of the context settings applied to the parent collection. Currently available: query_boundary: This boolean value set to this option determines whether to add SHAPE field to the RasterCollection. The value in the SHAPE field represents the boundary/geometry of the raster. The query_boundary parameter is honoured only when the RasterCollection is created from a list of Rasters. True: Set query_boundary to True to add the SHAPE field to the RasterCollection. False: Set query_boundary to False to not add the SHAPE field to the RasterCollection. (Creation of RasterCollection would be faster) Example: {“query_boundary”:True}
Returns

a sorted RasterCollection object

sum(ignore_nodata=True)

Returns a raster object in which each band contains the sum of pixel values for that band across all rasters in the raster collection.

For example, if there are ten raster items in the raster collection, each with four bands, the sum method will calculate the sum of pixel values for each pixel that occurs across all raster items for band 1, band 2, band 3, and band 4; a four-band raster is returned. Band numbers are matched between raster items using the band index, so the items in the raster collection must follow the same band order.

 Argument Description ignore_nodata Optional Boolean. Specifies whether NoData values are ignored. True : The method will include all valid pixels and ignore any NoData pixels. This is the default. False : The method will result in NoData if there are any NoData values.
Returns

a Raster object

to_multidimensional_raster(variable_field_name, dimension_field_names)

Returns a multidimensional raster dataset, in which each item in the raster collection is a slice in the multidimensional raster.

 Argument Description variable_field_name Required string. The name of the field that contains the variable names. dimension_field_names Required string. The name of the field or fields that contains the dimension names. This can be specified as a single string or a list of strings. For time-related dimensions, the field name must match one of the following to be recognized as a time field: StdTime, Date, Time, or AcquisitionDate. For nontime-related dimensions, the values in those fields must be type Double. If there are two or more dimensions, use a comma to separate the fields (for example, dimension_field_names = [“Time”, “Depth”]).
Returns

a Raster object

# Usage Example: Generates a multidimensional raster from the raster collection.

multidim_raster = rc.to_multidimensional_raster(variable_field_name="Name",
dimension_field_name="AcquisitionDate")


## RasterInfo¶

class arcgis.raster.RasterInfo(raster_info_dict=None)

Class allows to create RasterInfo object that describes a set of raster properties to facilitate the creation of local raster dataset using the Raster class (requires arcpy)

A RasterInfo object can be created by instantiating it from a dictionary, or by calling an Imagery Layer/Raster object’s raster_info property

Information about the raster can also be set through the following properties available on the RasterInfo object: band_count, extent , pixel_size_x, pixel_size_y, pixel_type, block_height, block_width, no_data_values, spatial_reference

To construct RasterInfo object from a dictionary, use from_dict method on this class.

# Usage Example 1: This example creates a new Raster object from the raster_info of another Raster object. (requires arcpy)
raster_obj = Raster(<raster dataset path>)
ras_info = RasterInfo(raster_obj.raster_info)
rinfo_based_ras = Raster(rasInfo2)

#To write pixel values to this temporary Raster object:
rinfo_based_ras.write(<numpy_array>)

#To save this temporary raster locally:
rinfo_based_ras.save(r"C:\data\persisted_raster.crf")


RasterInfo object can also be used in raster functions that take in raster info as a parameter. (does not require arcpy) example: As value to the raster_info parameter for arcgis.raster.functions.constant_raster() and arcgis.raster.functions.random_raster()

property band_count

Information about the band count of a raster.

property block_height

property block_width

property extent

Information about the extent of a raster.

from_dict(raster_info_dict)

Function used to initialise RasterInfo object from raster info dictionary

# Usage Example :
rinfo = RasterInfo()
rinfo.from_dict({'bandCount': 3,
'extent': {"xmin": 4488761.95,
"ymin": 5478609.805,
"xmax": 4489727.05,
"ymax": 5479555.305,
"spatialReference": {
"wkt": "PROJCS["Deutsches_Hauptdreiecksnetz_Transverse_Mercator",
GEOGCS["GCS_Deutsches_Hauptdreiecksnetz",DATUM["D_Deutsches_Hauptdreiecksnetz",
SPHEROID["Bessel_1841",6377397.155,299.1528128]],PRIMEM["Greenwich",0.0],
UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],
PARAMETER["false_easting",4500000.0],PARAMETER["false_northing",0.0],
PARAMETER["central_meridian",12.0],PARAMETER["scale_factor",1.0],
PARAMETER["latitude_of_origin",0.0],UNIT["Meter",1.0]]"
}},
'pixelSizeX': 0.0999999999999614,
'pixelSizeY': 0.1,
'pixelType': 'U8'})

property no_data_values

property pixel_size_x

Information about the pixel size of a raster in x direction

property pixel_size_y

Information about the pixel size of a raster in y direction

property pixel_type

Information about the pixel type of a raster.

property spatial_reference

Information about the extent of a raster.

to_dict()

To return Raster Info in dictionary format