ole
Version:
OpenLayers Editor
22 lines (21 loc) • 1.02 kB
JavaScript
import { MultiPoint } from 'ol/geom';
/**
* Removes the closest node to a given coordinate from a given geometry.
* @private
* @param {ol.Geometry} geometry An openlayers geometry.
* @param {ol.Coordinate} coordinate Coordinate.
* @returns {ol.Geometry.MultiPoint} An openlayers MultiPoint geometry.
*/
const getShiftedMultipoint = (geometry, coordinate) => {
// Include all but the closest vertex to the coordinate (e.g. at mouse position)
// to prevent snapping on mouse cursor node
const isPolygon = geometry.getType() === 'Polygon';
const shiftedMultipoint = new MultiPoint(isPolygon ? geometry.getCoordinates()[0] : geometry.getCoordinates());
const drawNodeCoordinate = shiftedMultipoint.getClosestPoint(coordinate);
// Exclude the node being modified
shiftedMultipoint.setCoordinates(shiftedMultipoint
.getCoordinates()
.filter((coord) => coord.toString() !== drawNodeCoordinate.toString()));
return shiftedMultipoint;
};
export default getShiftedMultipoint;