RelationParameters | API Reference | ArcGIS Maps SDK for JavaScript 4.31

Sets the relation and other parameters for the geometryService.relation() operation.

See also

Constructors

RelationParameters Constructor new RelationParameters(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
String	The name of the class.	Accessor
Geometry []	The first array of geometries to compute the relation.	RelationParameters
Geometry []	The second array of geometries to compute the relation.	RelationParameters
String	The spatial relationship to be tested between the two input geometry arrays.	RelationParameters
String	The string describes the spatial relationship to be tested when `RelationParameters.relation = 'relation'`.	RelationParameters

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.

geometries1 Property geometries1 Geometry[]

The first array of geometries to compute the relation. The structure of each geometry in the array is same as the structure of the json geometry objects returned by the ArcGIS REST API.

geometries2 Property geometries2 Geometry[]

The second array of geometries to compute the relation. The structure of each geometry in the array is same as the structure of the json geometry objects returned by the ArcGIS REST API.

relation Property relation String

The spatial relationship to be tested between the two input geometry arrays. See table below for a list of possible values. If the relation is specified as relation, the relationParameter parameter describes the spatial relationship and must be specified.

Value	Description
cross	Two polylines cross if they share only points in common, at least one of which is not an endpoint. A polyline and an polygon cross if they share a polyline in common on the interior of the polygon which is not equivalent to the entire polyline. Cross is a Clementini operator. If either one of the geometries is empty, the geometries do not cross.
disjoint	Two geometries are disjoint if their intersection is empty. Two geometries intersect if disjoint is "false".
in	The base geometry is within the comparison geometry if the base geometry is the intersection of the geometries and the intersection of their interiors is not empty. An empty geometry is within another geometry, unless the other geometry is empty.
interior-intersection	Geometries intersect excluding boundary touch.
intersection	Geometry interiors intersect or boundaries touch, same as 'not disjoint'.
line-coincidence	The boundaries of the geometries must share an intersection, but the relationship between the interiors of the shapes is not considered (they could overlap, one could be contained in the other, or their interiors could be disjoint). This relation applies to polylines and polygons.
line-touch	Two geometries are said to touch when the intersection of the geometries is non-empty, but the intersection of their interiors is empty. This evaluates if the touch occurs along a boundary (not a point). Valid for polygons.
overlap	Two polylines share a common sub-line, or two polygons share a common sub-area. Two geometries do not overlap if either one is empty.
point-touch	Two geometries are said to touch when the intersection of the geometries is non-empty, but the intersection of their interiors is empty. This evaluates if the touch occurs at a point (not a boundary).
relation	Allows specification of any relationship defined using the Shape Comparison Language. If this value is used, a value for `relationParameter` must be specified.
touch	The union of point touch and line touch. Two geometries are said to touch when the intersection of the geometries is non-empty, but the intersection of their interiors is empty. For example, a point touches a polyline only if the point is coincident with one of the polyline end points. If either one of the two geometries is empty, the geometries are not touched.
within	Same as `in` but also allows polylines that are strictly on the boundaries of polygons to be considered in the polygon.

relationParameter Property relationParameter String

The string describes the spatial relationship to be tested when RelationParameters.relation = 'relation'. The Relational functions for ST_Geometry topic has additional details. An example of a valid string is: FFFTTT**. Also see the description of geometryEngine.relate() for additional examples of valid strings.

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

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.

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.