centroidOperator | References | ArcGIS Maps SDK for JavaScript

import { execute, supportsCurves } from "@arcgis/core/geometry/operators/centroidOperator.js";

Since: ArcGIS Maps SDK for JavaScript 4.31

Calculates the centroid for a 2D geometry. The centroid represents the geometric center of mass, where the mass is equally distributed at each point/vertex of the geometry. For example, the centroid of a straight line is the midpoint. The centroid of a point is the point itself. It is not guaranteed to be within or on the geometry. The centroid of a donut polygon is the center of the hole, which is outside the polygon. The centroid of a curved polyline is not located on the line itself, but will be some distance away from it.

Centroid operator

See also

Functions

execute

Function

Performs the centroid operation on a geometry.

Signature: execute (geometry: GeometryUnion): Point

Parameters

Parameter	Type	Description	Required
geometry	`GeometryUnion`	The geometry in which to calculate the centroid.

Returns: Point
The centroid of the geometry.

Example

// Return the centroid of a polygon
const centroid = centroidOperator.execute(polygon);
console.log(`x: ${centroid.x}, y: ${centroid.y}`);

Variables

supportsCurves

Variable

Indicates if the operator supports input geometries that contain curves. The value will always be true.

Type: boolean