DimensionalDefinition

AMD: require(["esri/layers/support/DimensionalDefinition"], (DimensionalDefinition) => { /* code goes here */ });
ESM: import DimensionalDefinition from "@arcgis/core/layers/support/DimensionalDefinition.js";
Class: esri/layers/support/DimensionalDefinition
Inheritance: DimensionalDefinition Accessor
Since: ArcGIS Maps SDK for JavaScript 4.0

A dimensional definition defines a filter based on one variable and one dimension. You can filter multidimensional data with one or multiple dimensional slices. Instances of this class are typically used when filtering data based on slices or ranges in one or more dimensions by setting MosaicRule.multidimensionalDefinition on an ImageryLayer or the multidimensionalDefinition on an ImageryTileLayer.

For example, a single ImageryLayer may have a depth dimension storing sea temperatures for the same pixel location at various depths. Another dimension could be time where the same pixel stores multiple values based on a window of time.

The snippet in the image below renders sea temperature at the surface for a specific time in the year.

let multidimensionalDefinition = [];
multidimensionalDefinition.push(new DimensionalDefinition({
  variableName: "water_temp",
  dimensionName: "StdZ", // water depth
  values: [0], // sea surface or 0ft
  isSlice: true
}));

let mosaicRule = new MosaicRule();
mosaicRule.multidimensionalDefinition = multidimensionalDefinition;

layers-imagery-dd-0

In contrast, the following image renders sea temperature data from the same service at 5000 meters below the surface within the same time window.

let multidimensionalDefinition = [];
multidimensionalDefinition.push(new DimensionalDefinition({
  variableName: "water_temp",
  dimensionName: "StdZ", // water depth
  values: [-5000], // 5000 m below
  isSlice: true
}));

let mosaicRule = new MosaicRule();
mosaicRule.multidimensionalDefinition = multidimensionalDefinition;

layers-imagery-dd-5000

See also

Constructors

DimensionalDefinition

Constructor
new DimensionalDefinition(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.
Show inherited properties Hide inherited properties
Name Type Summary Class

The name of the class.

Accessor

The dimension associated with the variable.

DimensionalDefinition

Indicates whether the values indicate slices (rather than ranges).

DimensionalDefinition

An array of single values or tuples [min, max] each defining a range of valid values along the specified dimension.

DimensionalDefinition

The required variable name by which to filter.

DimensionalDefinition

Property Details

declaredClass

Inherited
Property
declaredClass Stringreadonly
Inherited from Accessor
Since: ArcGIS Maps SDK for JavaScript 4.7 Accessor since 4.0, declaredClass added at 4.7.

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

dimensionName

Property
dimensionName String

The dimension associated with the variable.

isSlice

Property
isSlice Boolean

Indicates whether the values indicate slices (rather than ranges).

Default Value:false

values

Property
values Array<(number|Array<number>)>

An array of single values or tuples [min, max] each defining a range of valid values along the specified dimension.

Example
// -10 is the minimum valid value and 10 is the maximum valid value
definition.values = [[-10, 10]];

variableName

Property
variableName String

The required variable name by which to filter.

Method Overview

Show inherited methods Hide inherited methods
Name Return Type Summary Class

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

Accessor

Creates a clone of the DimensionalDefinition object.

DimensionalDefinition
*

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

DimensionalDefinition

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.

DimensionalDefinition

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(){DimensionalDefinition}

Creates a clone of the DimensionalDefinition object.

Returns
Type Description
DimensionalDefinition A clone of the object that invoked this method.
Example
// Creates a clone of the DimensionalDefinition
let dimensionalDefinition1 = dimensionalDefinition.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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