Property Overview

Property Details

declaredClassStringreadonly inherited

Since: ArcGIS API for JavaScript 4.7

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

dpiNumber

Dots per inch setting for an esri/layersMapImageLayer.

Default Value:96

extentExtent

Extent of map to be exported.

formatString

Map image format.

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

Default Value:png8

Example:

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

heightNumber

Requested image height in pixels.

imageSpatialReferenceSpatialReference

Spatial reference of exported map.

layerDefinitionsString[]

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
});

layerIdsNumber[]

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";

layerOptionString

The option for displaying or hiding the layer.

Known Values: show | hide | include | exclude

Example:

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

transparentBoolean

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

Default Value:true

widthNumber

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.