PieChartRenderer | API Reference | ArcGIS Maps SDK for JavaScript 4.32

PieChartRenderer allows you to create a pie chart for each feature in the layer. The value and color of each pie slice is specified in the attributes property. You can vary the size of each pie based on data with any other field value or Arcade expression using visualVariables.

Known Limitations

PieChartRenderer is only supported in 2D MapView
PieChartRenderer is only supported with the following layer types containing point or polygon geometries: FeatureLayer, CSVLayer, GeoJSONLayer, WFSLayer, and OGCFeatureLayer
PieChartRenderer is not supported with FeatureReductionCluster

See also

Sample - pie charts

Example

layer.renderer = {
  type: "pie-chart",  // autocasts as new PieChartRenderer()
  attributes: [{
    field: "ELEMENTARY_SCHOOL",
    label: "Elementary School",
    color: "red"
  }, {
    field: "MIDDLE_SCHOOL",
    label: "Middle School",
    color: "blue"
  }, {
    field: "HIGH_SCHOOL",
    label: "High School",
    color: "orange"
  }, {
    valueExpression: "$feature.ASSOCIATES_DEGREE + $feature.BACHELOR_DEGREE + $feature.MASTER_DEGREE + $feature.DOCTORATE_DEGREE",
    valueExpressionTitle: "People who completed university",
    label: "University"
    color: "green"
  }]
};

Constructors

PieChartRenderer Constructor new PieChartRenderer(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
AttributeColorInfo []	Defines the variable(s) to include in the pie charts.	PieChartRenderer
AuthoringInfo\|null\|undefined	Authoring metadata only included in renderers generated from one of the Smart Mapping creator methods, such as sizeRendererCreator.createContinuousRenderer() or colorRendererCreator.createContinuousRenderer().	Renderer
SimpleFillSymbol\|CIMSymbol\|null\|undefined	The symbol used to render polygons behind the pie symbols.	PieChartRenderer
String	The name of the class.	Accessor
Color	The color used to visualize features whose attributes all have null or empty values.	PieChartRenderer
String\|null\|undefined	Describes the defaultColor in the Legend.	PieChartRenderer
Number	Use this property to create a donut chart.	PieChartRenderer
Object\|null\|undefined	An object providing options for describing the renderer in the Legend.	PieChartRenderer
Accessor\|null\|undefined	Defines the rules for how to aggregate small categories to a generic "others" category.	PieChartRenderer
SimpleLineSymbol\|null\|undefined	Defines the outline of the pie chart.	PieChartRenderer
Number	Defines the size of each pie chart in points.	PieChartRenderer
String	The type of renderer.	PieChartRenderer
Array<(SizeVariable\|OpacityVariable)>\|null\|undefined	An array of Size Visual Variable objects.	PieChartRenderer

Property Details

attributes Property attributes AttributeColorInfo[]autocast

Defines the variable(s) to include in the pie charts. This is an array of objects, each of which references a numeric field value or Arcade expression used to drive the width of each sector. You must also set a color corresponding to each value.

This property is limited to no more than 10 attributes.

See also

Arcade Visualization Profile

Example

renderer.attributes = [{
  field: "English",
  label: "English speakers",
  color: "red"
}, {
  field: "Spanish",
  label: "Spanish speakers",
  color: "blue"
}, {
  field: "Other",
  label: "All other languages",
  color: "brown"
}];

authoringInfo Inherited Property authoringInfo AuthoringInfo |null |undefinedautocast Inherited from Renderer

Authoring metadata only included in renderers generated from one of the Smart Mapping creator methods, such as sizeRendererCreator.createContinuousRenderer() or colorRendererCreator.createContinuousRenderer(). This includes information from UI elements such as sliders and selected classification methods and themes. This allows the authoring clients to save specific overridable settings so that next time it is accessed via the UI, their selections can be remembered.

backgroundFillSymbol Property backgroundFillSymbol SimpleFillSymbol |CIMSymbol |null |undefinedautocast

The symbol used to render polygons behind the pie symbols. Only applicable to polygon layers.

Support for CIMSymbol was added at version 4.31.

Example

renderer.backgroundFillSymbol = {
  color: [51, 204, 51, 0.3],
  outline: {
    width: 1,
    color: [255,255,255,0.3]
  }
};

declaredClass Inherited Property declaredClass Stringreadonly Inherited from Accessor

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

defaultColor Property defaultColor Colorautocast

The color used to visualize features whose attributes all have null or empty values. By default, this is a transparent color, so no chart displays. You should set this value if you would like to show areas with features, but no data associated with it.

Default Value:new Color([0, 0, 0, 0])

See also

defaultLabel

Example

renderer.defaultColor = "lightgray";

defaultLabel Property defaultLabel String |null |undefined

Describes the defaultColor in the Legend.

Example

renderer.defaultLabel = "No data";

holePercentage Property holePercentage Number

Use this property to create a donut chart. Defines the size of the hole to cut from the center of the chart as a percentage of the entire pie chart. Accepted values are between 0 and 1. For example, a hole percentage of 0 will render a full pie chart. A ratio of 0.5 will remove 50% of the center of the pie, creating a donut.

Default Value:0

Example

renderer.holePercentage = 0.5;

legendOptions Property legendOptions Object |null |undefinedautocast

An object providing options for describing the renderer in the Legend.

Property: title String|null|undefined

Describes the data used by the renderer. This is displayed as the title of the renderer in the Legend and overrides the layer's title.

Example

renderer.legendOptions = {
  title: "Population by educational attainment"
};

othersCategory Property othersCategory Accessor |null |undefinedautocast

Defines the rules for how to aggregate small categories to a generic "others" category.

Properties: color Color

Autocasts from String|Object|Number []

Defines the color used to represent all categories whose pie slices are smaller than the percentage defined by threshold. This is typically used to represent a generic "others" category where slices would otherwise be too small to read.

label String|null|undefined

Describes the color grouping categories smaller than the threshold in the Legend.

threshold Number

Represents the minimum size of individual slices as a percentage of the entire pie. Accepted values are between 0 and 1. All slices that make up a smaller percentage than the threshold will automatically be aggregated to an "others" category represented by the color specified in color. For example, if the threshold is 0.05, then all slices that make up less than 5% of the total pie will be represented with the color.

Example

// all categories that make up less than 4%
// of the total will combine to an "others"
// category represented with a gray color.
renderer.othersCategory = {
  color: "gray",
  threshold: 0.04
};

outline Property outline SimpleLineSymbol |null |undefinedautocast

Defines the outline of the pie chart. The outline width and color is applied to the outer outline of the pie (and inner outline in the case of donut charts).

Example

renderer.outline = {
  width: 0.5,
  color: "black"
};

size Property size Numberautocast Autocasts from String|Number

Defines the size of each pie chart in points. This value may be autocast with a string expressing size in points or pixels (e.g. 12px).

Default Value:12

Examples

// size in points
renderer.size = 14;

// size in pixels
renderer.size = "20px";

// size in points
renderer.size = "14pt";

type Property type Stringreadonly

The type of renderer.

For PieChartRenderer the type is always "pie-chart".

visualVariables Property visualVariables Array<(SizeVariable|OpacityVariable)> |null |undefinedautocast Autocasts from Object []

An array of Size Visual Variable objects. Typically, this is used to vary the size of each pie chart based on the sum of all categories included in the pie.

Example

renderer.visualVariables = [{
  type: "size",
  valueExpression: "$feature.category1 + $feature.category2 + $feature.category3",
  valueExpressionTitle: "Total population"
  minSize: 20,
  maxSize: 72,
  minDataValue: 100,
  maxDataValue: 1000000
}];

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
PieChartRenderer	Creates a deep clone of the renderer.	PieChartRenderer
*\|null\|undefined	Creates a new instance of this class and initializes it with values from a JSON object generated from an ArcGIS product.	Renderer
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.	Renderer

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(){PieChartRenderer}

Creates a deep clone of the renderer.

Returns

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

Example

// Creates a deep clone of the first layer's renderer
let renderer = view.map.layers.at(0).renderer.clone();

fromJSON Inherited Method fromJSON(json){* |null |undefined}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
* \| null \| undefined	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 Inherited Method toJSON(){Object} Inherited from Renderer

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.