ImageParameters

Property Overview

Property Details

declaredClass Stringreadonly inherited

Since: ArcGIS API for JavaScript 4.7

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

dpi Number

Dots per inch setting for an esri/layersMapImageLayer.

Default Value:96

extent Extent

Extent of map to be exported.

format String

Map image format.

Possible Values:"png"|"png8"|"png24"|"png32"|"jpg"|"pdf"|"bmp"|"gif"|"svg"

Default Value:png8

Example:

let imageParams = new ImageParameters();
imageParams.format = "jpg";

height Number

Requested image height in pixels.

imageSpatialReference SpatialReference

Spatial reference of exported map.

layerDefinitions String[]

Array of layer definition expressions that allows you to filter the features of individual layers in the exported map image. Layer definitions with semicolons or colons are supported if using a map service published using ArcGIS Server 10 or later.

Example:

let layerDefs = [];
layerDefs[5] = "STATE_NAME='Kansas'";
layerDefs[4] = "STATE_NAME='Kansas' and POP2007>25000";
layerDefs[3] = "STATE_NAME='Kansas' and POP2007>25000";

let imageParams = new ImageParameters({
  layerDefinitions: layerDefs
});

layerIds Number[]

A list of layer IDs, that represent which layers to include in the exported map. Use in combination with layerOption to specify how layer visibility is handled.

Example:

let imageParams = new ImageParameters();
imageParams.layerIds = [3,4,5];
imageParams.layerOption = "show";

layerOption String

The option for displaying or hiding the layer.

Possible Values:"show"|"hide"|"include"|"exclude"

Example:

let imageParams = new ImageParameters();
imageParams.layerOption = "show";

transparent Boolean

Indicates whether or not the background of the dynamic image is transparent.

Default Value:true

width Number

Requested image width in pixels.

Method Overview

Method Details

toJSON(){Object}

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

Returns:

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