BufferParameters

AMD: require(["esri/rest/support/BufferParameters"], (BufferParameters) => { /* code goes here */ });
ESM: import BufferParameters from "@arcgis/core/rest/support/BufferParameters";
Class: esri/rest/support/BufferParameters
Inheritance: BufferParameters Accessor
Since: ArcGIS API for JavaScript 4.20

Sets the distances, units, and other parameters for the buffer() method on the geometryService.

See also

Constructors

new BufferParameters(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
SpatialReference

The spatial reference in which the geometries are buffered.

more details
BufferParameters
String

The name of the class.

more details
Accessor
Number[]

The distances the input features are buffered.

more details
BufferParameters
Boolean

If the input geometries are in a geographic coordinate system, set geodesic to true to generate a buffer polygon using a geodesic distance.

more details
BufferParameters
Geometry[]

The input geometries to buffer.

more details
BufferParameters
SpatialReference

The spatial reference for the returned geometries.

more details
BufferParameters
Boolean

If true, all geometries buffered at a given distance are unioned into a single (possibly multipart) polygon, and the unioned geometry is placed in the output array.

more details
BufferParameters
String

The units for calculating each buffer distance.

more details
BufferParameters

Property Details

bufferSpatialReference SpatialReference

The spatial reference in which the geometries are buffered.

If bufferSpatialReference is not specified, the geometries are buffered in the spatial reference specified by outSpatialReference. If outSpatialReference is also not specified, they are buffered in the spatial reference of the features.

declaredClass Stringreadonly inherited

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

distances Number[]

The distances the input features are buffered. The distance units are specified by unit.

geodesic Boolean

If the input geometries are in a geographic coordinate system, set geodesic to true to generate a buffer polygon using a geodesic distance. The bufferSpatialReference property is ignored when geodesic is set to true. Requires ArcGIS Server 10.1 or greater geometry service. For more information, see the ArcGIS REST API documentation on the GeometryService buffer operation and the geodesic property.

geometries Geometry[]

The input geometries to buffer.

outSpatialReference SpatialReference

The spatial reference for the returned geometries.

If outSpatialReference is not specified, the output geometries are in the spatial reference specified by bufferSpatialReference. If bufferSpatialReference also is not specified, they are in the spatial reference of the features.

unionResults Boolean

If true, all geometries buffered at a given distance are unioned into a single (possibly multipart) polygon, and the unioned geometry is placed in the output array.

unit String

The units for calculating each buffer distance. If unit is not specified, the units are derived from bufferSpatialReference. If bufferSpatialReference is not specified, the units are derived from the features.

For a list of valid units, see esriSRUnitType Constants and esriSRUnit2Type Constants.

Possible Values:"feet"|"kilometers"|"meters"|"miles"|"nautical-miles"|"yards"

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.

more details
Accessor
*

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

more details
BufferParameters
Boolean

Returns true if a named group of handles exist.

more details
Accessor

Removes a group of handles owned by the object.

more details
Accessor
Object

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

more details
BufferParameters

Method Details

addHandles(handleOrHandles, groupKey)inherited
Since: ArcGIS API for JavaScript 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 }
);

// Handle gets removed when the object is destroyed.
this.addHandles(handle);
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(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(groupKey){Boolean}inherited
Since: ArcGIS API for JavaScript 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(groupKey)inherited
Since: ArcGIS API for JavaScript 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(){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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