PieChartMediaInfo | API Reference | ArcGIS Maps SDK for JavaScript 4.31

A PieChartMediaInfo is a type of chart media element that represents a pie chart displayed within a popup.

popuptemplate-media-element-piechart

See also

Example

// Create a new PieChart to display within the PopupTemplate
// Create the ChartMediaInfoValue
let pieChartValue = new ChartMediaInfoValue({
  colors: [[220, 123, 4, 1], [229, 80, 53, 1], ...],
  fields: ["<array of strings indicating fields>"],
  normalizeField: null,
  tooltipField: "<field name>"
});

// Create the PieChartMediaInfo media type
let pieChart = new PieChartMediaInfo({
  title: "<b>Count by type</b>",
  caption: "Per block",
  value: pieChartValue
});

// Create the MediaContent
let mediaElement = new MediaContent({
  mediaInfos: [pieChart]
});

Constructors

PieChartMediaInfo Constructor new PieChartMediaInfo(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 Watch for changes topic.

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Type	Summary	Class
String	Provides an alternate text for an image if the image cannot be displayed.	PieChartMediaInfo
String	Defines a caption for the media.	PieChartMediaInfo
String	The name of the class.	Accessor
String	The title of the media element.	PieChartMediaInfo
String	Indicates the type of chart.	PieChartMediaInfo
ChartMediaInfoValue	Defines the chart value.	PieChartMediaInfo

Property Details

altText Property altText String Since: ArcGIS Maps SDK for JavaScript 4.16 PieChartMediaInfo since 4.11, altText added at 4.16.

Provides an alternate text for an image if the image cannot be displayed.

caption Property caption String

Defines a caption for the media.

declaredClass Inherited Property declaredClass Stringreadonly Inherited from Accessor

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

title Property title String

The title of the media element.

type Property type Stringreadonly

Indicates the type of chart.

Default Value:"pie-chart"

value Property value ChartMediaInfoValueautocast

Defines the chart value.

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
PieChartMediaInfo	Creates a deep clone of the PieChartMediaInfo class.	PieChartMediaInfo
*	Creates a new instance of this class and initializes it with values from a JSON object generated from an ArcGIS product.	PieChartMediaInfo
Boolean	Returns true if a named group of handles exist.	Accessor
	Removes a group of handles owned by the object.	Accessor
Object	Converts an instance of this class to its ArcGIS portal JSON representation.	PieChartMediaInfo

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(){PieChartMediaInfo}

Creates a deep clone of the PieChartMediaInfo class.

Returns

Type	Description
PieChartMediaInfo	A deep clone of the PieChartMediaInfo instance.

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.