require(["esri/renderers/visualVariables/RotationVariable"], (RotationVariable) => { /* code goes here */ });
import RotationVariable from "@arcgis/core/renderers/visualVariables/RotationVariable.js";
esri/renderers/visualVariables/RotationVariable
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.
Known Limitations
In a SceneView rotation visual variables are not currently supported with text symbols and 3D text symbol layers.
const rotationVisualVariable = {
type: "rotation",
field: "heading",
rotationType: "geographic"
};
renderer.visualVariables = [ rotationVisualVariable ];
Constructors
-
Parameterproperties Objectoptional
See the properties for a list of all the properties that may be passed into the constructor.
Property Overview
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
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"
-
field
InheritedPropertyfield 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.
-
Inherited from VisualVariable
-
An object providing options for displaying the visual variable in the Legend.
-
rotationType
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
type Stringreadonly
-
The visual variable type.
For RotationVariable the type is always "rotation".
-
valueExpression
InheritedPropertyvalueExpression 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.
- See also
-
valueExpressionTitle
InheritedPropertyvalueExpressionTitle 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
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
-
Inherited from Accessor
Since: ArcGIS Maps SDK for JavaScript 4.25Accessor 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();
ParametershandleOrHandles WatchHandle|WatchHandle[]Handles marked for removal once the object is destroyed.
groupKey *optionalKey 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
clone(){RotationVariable}
-
Creates a deep clone of the RotationVariable.
ReturnsType 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();
-
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.Parameterjson ObjectA 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.
ReturnsType Description * Returns a new instance of this class.
-
hasHandles
InheritedMethodhasHandles(groupKey){Boolean}
Inherited from AccessorSince: ArcGIS Maps SDK for JavaScript 4.25Accessor since 4.0, hasHandles added at 4.25. -
Returns true if a named group of handles exist.
ParametergroupKey *optionalA group key.
ReturnsType 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"); }
-
Inherited from Accessor
Since: ArcGIS Maps SDK for JavaScript 4.25Accessor since 4.0, removeHandles added at 4.25. -
Removes a group of handles owned by the object.
ParametergroupKey *optionalA group key or an array or collection of group keys to remove.
Exampleobj.removeHandles(); // removes handles from default group obj.removeHandles("handle-group"); obj.removeHandles("other-handle-group");
-
toJSON
toJSON(){Object}
-
Converts an instance of this class to its ArcGIS portal JSON representation. See the Using fromJSON() guide topic for more information.
ReturnsType Description Object The ArcGIS portal JSON representation of an instance of this class.