HeatmapColorStop | API Reference | ArcGIS Maps SDK for JavaScript 4.30

This class is used to define an array of objects describing the HeatmapRenderer's color ramp and associated density value ratios. See HeatmapRenderer for examples of how this is used.

See also

HeatmapRenderer

Constructors

HeatmapColorStop Constructor new HeatmapColorStop(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.

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Type	Summary	Class
Color	The color to shade a given pixel based on its calculated density ratio.	HeatmapColorStop
String	The name of the class.	Accessor
Number	The ratio of a pixel's density value to the maxDensity of the renderer.	HeatmapColorStop

Property Details

color Property color Colorautocast Autocasts from Object|number []|string

The color to shade a given pixel based on its calculated density ratio.

declaredClass Inherited Property declaredClass Stringreadonly Inherited from Accessor

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

ratio Property ratio Number

The ratio of a pixel's density value to the maxDensity of the renderer. The ratio of each pixel is matched to the corresponding color.

Method Overview

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Return Type	Summary	Class
	Adds one or more handles which are to be tied to the lifecycle of the object.	Accessor
HeatmapColorStop	Creates a deep clone of the color stop.	HeatmapColorStop
Boolean	Returns true if a named group of handles exist.	Accessor
	Removes a group of handles owned by the object.	Accessor

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.

clone Method clone(){HeatmapColorStop}

Creates a deep clone of the color stop.

Returns

Type	Description
HeatmapColorStop	A deep clone of the object that invoked this method.

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");