MapImage

AMD: require(["esri/layers/support/MapImage"], (MapImage) => { /* code goes here */ });
ESM: import MapImage from "@arcgis/core/layers/support/MapImage.js";
Class: esri/layers/support/MapImage
Inheritance: MapImage Accessor
Since: ArcGIS Maps SDK for JavaScript 4.0

Represents the data object for the dynamically generated map. This is generated after the promise returned from the export operation on {JobInfo.fetchResultImage() resolves.

See also

Constructors

MapImage

Constructor
new MapImage(properties)
Parameter
properties Object
optional

See the properties for a list of all the properties that may be passed into the constructor.

Property Overview

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

The name of the class.

Accessor

The extent of the exported map.

MapImage

The requested image height in pixels.

MapImage

URL to the returned image.

MapImage

The opacity of the image.

MapImage

Scale of the requested dynamic map.

MapImage

Indicates if the requested image is visible in the view.

MapImage

The requested image width in pixels.

MapImage

Property Details

declaredClass

Inherited
Property
declaredClass Stringreadonly
Inherited from Accessor
Since: ArcGIS Maps SDK for JavaScript 4.7 Accessor since 4.0, declaredClass added at 4.7.

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

extent

Property
extent Extent

The extent of the exported map.

height

Property
height Number

The requested image height in pixels.

href

Property
href String

URL to the returned image. The image format must be of a type supported by the HTML <img> tag.

opacity

Property
opacity Number

The opacity of the image. Value can be any number between 0 and 1 where 0 is 100% transparent, 0.5 is 50% transparent and 1 is fully opaque.

Default Value:1

scale

Property
scale Number

Scale of the requested dynamic map.

visible

Property
visible Boolean

Indicates if the requested image is visible in the view.

Default Value:true

width

Property
width Number

The requested image width in pixels.

Method Overview

Show inherited methods Hide inherited methods
Name Return Type Summary Class

Adds one or more handles which are to be tied to the lifecycle of the object.

Accessor
*

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

MapImage

Returns true if a named group of handles exist.

Accessor

Removes a group of handles owned by the object.

Accessor

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

MapImage

Method Details

addHandles

Inherited
Method
addHandles(handleOrHandles, groupKey)
Inherited from Accessor
Since: ArcGIS Maps SDK for JavaScript 4.25 Accessor since 4.0, addHandles added at 4.25.

Adds one or more handles which are to be tied to the lifecycle of the object. The handles will be removed when the object is destroyed.

// Manually manage handles
const handle = reactiveUtils.when(
  () => !view.updating,
  () => {
    wkidSelect.disabled = false;
  },
  { once: true }
);

this.addHandles(handle);

// Destroy the object
this.destroy();
Parameters
handleOrHandles WatchHandle|WatchHandle[]

Handles marked for removal once the object is destroyed.

groupKey *
optional

Key identifying the group to which the handles should be added. All the handles in the group can later be removed with Accessor.removeHandles(). If no key is provided the handles are added to a default group.

fromJSON

Method
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.

hasHandles

Inherited
Method
hasHandles(groupKey){Boolean}
Inherited from Accessor
Since: ArcGIS Maps SDK for JavaScript 4.25 Accessor since 4.0, hasHandles added at 4.25.

Returns true if a named group of handles exist.

Parameter
groupKey *
optional

A group key.

Returns
Type Description
Boolean Returns true if a named group of handles exist.
Example
// Remove a named group of handles if they exist.
if (obj.hasHandles("watch-view-updates")) {
  obj.removeHandles("watch-view-updates");
}

removeHandles

Inherited
Method
removeHandles(groupKey)
Inherited from Accessor
Since: ArcGIS Maps SDK for JavaScript 4.25 Accessor since 4.0, removeHandles added at 4.25.

Removes a group of handles owned by the object.

Parameter
groupKey *
optional

A group key or an array or collection of group keys to remove.

Example
obj.removeHandles(); // removes handles from default group

obj.removeHandles("handle-group");
obj.removeHandles("other-handle-group");

toJSON

Method
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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