import FeatureExpressionInfo from "@arcgis/core/symbols/support/FeatureExpressionInfo.js";const FeatureExpressionInfo = await $arcgis.import("@arcgis/core/symbols/support/FeatureExpressionInfo.js");- Inheritance:
- FeatureExpressionInfo→
Accessor
- Since
- ArcGIS Maps SDK for JavaScript 4.34
Defines how to override a feature's Z-value based on its attributes.
Constructors
Constructor
Parameters
| Parameter | Type | Description | Required |
|---|---|---|---|
| properties | | |
Properties
expression
An Arcade expression following the specification defined by the Arcade Feature Z Profile.
Expressions may reference field values using the $feature profile variable and must return a number representing the z-value of the feature.
When mode = "on-the-ground", this property has no effect. For line and polygon geometries the result of the expression is the same for all vertices of a feature.
Methods
fromJSON
- Signature
-
fromJSON (json: any): any
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.
Parameters
| Parameter | Type | Description | Required |
|---|---|---|---|
| json | 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
- any
Returns a new instance of this class.
toJSON
- Signature
-
toJSON (): any
Converts an instance of this class to its ArcGIS portal JSON representation. See the Using fromJSON() guide topic for more information.
- Returns
- any
The ArcGIS portal JSON representation of an instance of this class.