maptalks

English

简体中文

English

简体中文

Appearance

MultiGeometry ​

MultiGeometry is an abstract base class for multi-geometries that extends GeometryCollection. It is the abstract parent of MultiPoint, MultiLineString, and MultiPolygon, and provides a unified coordinate read/write interface on top of a collection of child geometries. It is usually not instantiated directly.

js
import { MultiGeometry } from "maptalks";

// MultiGeometry is an abstract base class, usually not instantiated directly.
// Use its subclasses MultiPoint / MultiLineString / MultiPolygon instead.
const multi = new MultiGeometry("MultiPoint", "Point", [[100, 0], [101, 1]]);

Constructor ​

js
new MultiGeometry(geoType, type, data, options?)

Parameters:

  • geoType — The geometry type name (e.g. "MultiPoint").
  • type — The child geometry type name (e.g. "Point").
  • data — The array of child geometry data.
  • options — (Optional) Geometry options, see the options of Geometry.

options ​

MultiGeometry has no class-specific options; it inherits the options of GeometryCollection.

Methods ​

  • getCoordinates(): object — Returns the coordinates of all child geometries (GeoJSON-style structure).
  • setCoordinates(coords): this — Sets the coordinates of all child geometries.

Static Methods ​

  • MultiGeometry.fromJSON(json): MultiGeometry — Creates a MultiGeometry instance from a JSON object.

Events ​

No class-specific events.