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cluster as last marker in it

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muerwre 2019-02-27 09:42:11 +07:00
parent 64b057c708
commit 9532a333be
1 changed files with 7 additions and 7 deletions
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14
src/utils/arrow.ts
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@ -1,5 +1,4 @@
import { divIcon, LatLngLiteral, Marker, marker, DivIcon } from "leaflet"; import { divIcon, LatLngLiteral, Marker, marker, DivIcon } from "leaflet";
import { dist2 } from "$utils/geom";
export const createArrow = (latlng: LatLngLiteral, angle: number): Marker => marker(latlng, { export const createArrow = (latlng: LatLngLiteral, angle: number): Marker => marker(latlng, {
draggable: false, draggable: false,
@ -21,11 +20,12 @@ export const createArrow = (latlng: LatLngLiteral, angle: number): Marker => mar
export const arrowClusterIcon = (cluster): DivIcon => { export const arrowClusterIcon = (cluster): DivIcon => {
const markers = cluster.getAllChildMarkers(); const markers = cluster.getAllChildMarkers();
const nearest = markers.sort((a, b) => ( // search for nearest marker to cluster (slow)
dist2(a.getLatLng(), cluster.getLatLng()) - dist2(b.getLatLng(), cluster.getLatLng()) // const nearest = markers.sort((a, b) => (
)); // dist2(a.getLatLng(), cluster.getLatLng()) - dist2(b.getLatLng(), cluster.getLatLng())
// ));
cluster.setLatLng(nearest[0].getLatLng()); // faster way
cluster.setLatLng(markers[markers.length - 1].getLatLng());
return nearest[0].options.icon; return markers[markers.length - 1].options.icon;
}; };