ImageSampleParameters

Class: esri/rest/support/ImageSampleParameters
Inheritance: ImageSampleParameters Accessor
Since: ArcGIS API for JavaScript 4.20

Input parameters for the getSamples() method on ImageryLayer.

See also:

Property Overview

Any properties can be set, retrieved or listened to. See the Working with Properties topic.
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Name Type Summary Class
Stringmore details

The name of the class.

more detailsAccessor
Point|Multipoint|Polyline|Extent|Polygonmore details

Input geometry that defines the the locations to be sampled.

more detailsImageSampleParameters
Stringmore details

Defines how to interpolate pixel values.

more detailsImageSampleParameters
Point[]more details

When sampling multiple locations, you can use an array of points instead of providing a multipoint for the geometry property.

more detailsImageSampleParameters
MosaicRulemore details

Specifies the mosaic rule defining the image sort order and selection.

more detailsImageSampleParameters
String[]more details

The list of fields associated with the rasters to be included in the response.

more detailsImageSampleParameters
PixelSizemore details

Specifies the pixel size (or the resolution) that will be used for the sampling.

more detailsImageSampleParameters
Booleanmore details

When true, returns the first valid pixel value that meets specified conditions at each sampling point location.

more detailsImageSampleParameters
Numbermore details

Specifies the approximate number of locations to sample from the provided geometry when the input geometry is polyline, polygon or extent.

more detailsImageSampleParameters
Numbermore details

Specifies the distance interval to sample points from the provided geometry when input geometry is polyline.

more detailsImageSampleParameters
Numbermore details

Specifies the slice id of a multidimensional raster.

more detailsImageSampleParameters
TimeExtentmore details

The time extent for which to perform sampling.

more detailsImageSampleParameters

Property Details

declaredClass Stringreadonly inherited

The name of the class. The declared class name is formatted as esri.folder.className.

Autocasts from Object

Input geometry that defines the the locations to be sampled. The geometry can be a point, multipoint, polyline, extent or a polygon.

The locations property can be used to set an array of points for convenience if the geometry is a multipoint. If you set the locations property, the array of points will be converted to a multipoint geometry at runtime.

interpolation String

Defines how to interpolate pixel values.

Possible Values:"nearest"|"bilinear"|"cubic"|"majority"

Default Value:nearest
locations Point[]

When sampling multiple locations, you can use an array of points instead of providing a multipoint for the geometry property. The array of points will be converted to a multipoint and used as the geometry at runtime. The first point's spatial reference is used in getSamples operation.

mosaicRule MosaicRuleautocast
Autocasts from Object

Specifies the mosaic rule defining the image sort order and selection. When a mosaic rule is not specified, the current settings on the ImageryLayer will be used.

outFields String[]

The list of fields associated with the rasters to be included in the response.

Default Value:null
pixelSize PixelSizeautocast
Autocasts from Object

Specifies the pixel size (or the resolution) that will be used for the sampling. If pixel size is not specified, pixelSize will default to the base resolution of the image service. The raster at the specified pixel size in the mosaic dataset will be used for this operation.

returnFirstValueOnly Boolean

When true, returns the first valid pixel value that meets specified conditions at each sampling point location. When false, all pixel values are returned.

Default Value:true
sampleCount Number

Specifies the approximate number of locations to sample from the provided geometry when the input geometry is polyline, polygon or extent. Either sampleDistance or sampleCount is needed to perform densification on the input polyline to sample points. The unit of the geometry's spatial reference will be used for the densification.

sampleDistance Number

Specifies the distance interval to sample points from the provided geometry when input geometry is polyline. Either sampleDistance or sampleCount is needed to perform densification on the input polyline to sample points. The unit of the geometry's spatial reference will be used for the densification.

sliceId Number

Specifies the slice id of a multidimensional raster. This parameter is supported at ArcGIS Server 10.9 and later.

timeExtent TimeExtentautocast
Autocasts from Object

The time extent for which to perform sampling. This parameter is supported at ArcGIS Server 10.9 and later.

Method Overview

Name Return Type Summary Class
*more details

Creates a new instance of this class and initializes it with values from a JSON object generated from an ArcGIS product.

more detailsImageSampleParameters
Objectmore details

Converts an instance of this class to its ArcGIS portal JSON representation.

more detailsImageSampleParameters

Method Details

fromJSON(json){*}static

Creates a new instance of this class and initializes it with values from a JSON object generated from an ArcGIS product. The object passed into the input json parameter often comes from a response to a query operation in the REST API or a toJSON() method from another ArcGIS product. See the Using fromJSON() topic in the Guide for details and examples of when and how to use this function.

Parameter:
json Object

A JSON representation of the instance in the ArcGIS format. See the ArcGIS REST API documentation for examples of the structure of various input JSON objects.

Returns:
Type Description
* Returns a new instance of this class.
toJSON(){Object}

Converts an instance of this class to its ArcGIS portal JSON representation. See the Using fromJSON() guide topic for more information.

Returns:
Type Description
Object The ArcGIS portal JSON representation of an instance of this class.

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