RotationVariable

AMD: require(["esri/renderers/visualVariables/RotationVariable"], (RotationVariable) => { /* code goes here */ });
ESM: import RotationVariable from "@arcgis/core/renderers/visualVariables/RotationVariable.js";
Class: esri/renderers/visualVariables/RotationVariable
Inheritance: RotationVariableVisualVariableAccessor
Since: ArcGIS Maps SDK for JavaScript 4.10

The rotation visual variable, determined by mapping the values to data in a field or by other arithmetic means with an Arcade expression, controls how features rendered with marker symbols or text symbols in a MapView , as well as with marker symbols, ObjectSymbol3DLayer or IconSymbol3DLayer in a SceneView, are rotated. The final rotation is derived by adding the mapped or calculated rotation value to the symbol's initial angle.

This object may be used to depict variables such as wind direction, vehicle heading, trend indicators, etc.

renderer-vv-rotation

Known Limitations

In a SceneView rotation visual variables are not currently supported with text symbols and 3D text symbol layers.

See also
Example
const rotationVisualVariable = {
  type: "rotation",
  field: "heading",
  rotationType: "geographic"
};
renderer.visualVariables = [ rotationVisualVariable ];

Constructors

RotationVariable

Constructor
new RotationVariable(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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Name Type Summary Class

Only applicable when working in a SceneView with an ObjectSymbol3DLayer.

RotationVariable

The name of the class.

Accessor

The name of the numeric attribute field that contains the data values used to determine the color/opacity/size/rotation of each feature.

VisualVariable

An object providing options for displaying the visual variable in the Legend.

VisualVariable

Defines the origin and direction of rotation depending on how the angle of rotation was measured.

RotationVariable

The visual variable type.

RotationVariable

An Arcade expression following the specification defined by the Arcade Visualization Profile.

VisualVariable

The title identifying and describing the associated Arcade expression as defined in the valueExpression property.

VisualVariable

Property Details

axis

Property
axis String

Only applicable when working in a SceneView with an ObjectSymbol3DLayer. Defines the axis the rotation visual variable should be applied to when rendering features with an ObjectSymbol3DLayer.

If the symbol resource is aligned such that its forward facing side points in the direction of the y-axis (the y-axis always points North in WGS84 or WebMercator coordinates), its upwards facing side is pointing in the direction of the z-axis, and its right-hand side points in the direction of the x-axis (the x-axis always points East in WGS84 or WebMercator coordinates), then the following rotation axis will rotate the symbol as indicated by their name.

Possible Value Description
heading The rotation of the symbol in the horizontal plane (i.e., around the z axis).
tilt The rotation of the symbol in the longitudinal vertical plane (i.e., around the x axis).
roll The rotation of the symbol in the lateral vertical plane (i.e., around the y axis).

Possible Values:"heading" |"tilt" |"roll"

Default Value:"heading"

declaredClass

Inherited
Property
declaredClass Stringreadonly
Inherited from Accessor

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

field

Inherited
Property
field String
Inherited from VisualVariable

The name of the numeric attribute field that contains the data values used to determine the color/opacity/size/rotation of each feature.

legendOptions

Inherited
Property
legendOptions Objectautocast
Inherited from VisualVariable

An object providing options for displaying the visual variable in the Legend.

Properties
showLegend Boolean|null|undefined

Indicates whether to show the visual variable in the legend.

The title describing the visualization of the visual variable in the Legend. This takes precedence over a field alias or valueExpressionTitle.

rotationType

Property
rotationType String

Defines the origin and direction of rotation depending on how the angle of rotation was measured. See the table below for a list of possible values. This property only applies to rotations around the heading axis.

Value Description
geographic Rotates the symbol from the north in a clockwise direction.
arithmetic Rotates the symbol from the east in a counter-clockwise direction.

Possible Values:"geographic" |"arithmetic"

Default Value:"geographic"

type

Property
type Stringreadonly

The visual variable type.

For RotationVariable the type is always "rotation".

valueExpression

Inherited
Property
valueExpression String
Inherited from VisualVariable

An Arcade expression following the specification defined by the Arcade Visualization Profile. Expressions in visual variables may reference field values using the $feature profile variable and must return a number.

The values returned from this expression are the data used to drive the visualization as defined in the stops. This takes precedence over field. Therefore, this property is typically used as an alternative to field in visual variables.

valueExpressionTitle

Inherited
Property
valueExpressionTitle String
Inherited from VisualVariable

The title identifying and describing the associated Arcade expression as defined in the valueExpression property. This is displayed as the title of the corresponding visual variable in the Legend in the absence of a provided title in the legendOptions property.

Method Overview

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Name Return Type Summary Class

Adds one or more handles which are to be tied to the lifecycle of the object.

Accessor

Creates a deep clone of the RotationVariable.

RotationVariable
*

Creates a new instance of this class and initializes it with values from a JSON object generated from an ArcGIS product.

RotationVariable

Returns true if a named group of handles exist.

Accessor

Removes a group of handles owned by the object.

Accessor

Converts an instance of this class to its ArcGIS portal JSON representation.

RotationVariable

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(){RotationVariable}

Creates a deep clone of the RotationVariable.

Returns
Type Description
RotationVariable A deep clone of the rotation visual variable that invoked this method.
Example
// Creates a deep clone of the visual variable
let renderer = renderer.visualVariables[0].clone();

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.

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