Still working on clustering.
This commit is contained in:
parent
fce0b54574
commit
66fc287e5c
10
cSpell.json
10
cSpell.json
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@ -1,3 +1,11 @@
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{
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"overrides": [{ "filename": "**/fr.*", "language": "fr" }]
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"overrides": [
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{
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"filename": "**/fr.*",
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"language": "fr"
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}
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],
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"words": [
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"Clusterable"
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]
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}
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@ -49,6 +49,8 @@ import VectorTileSource from 'ol/source/VectorTile.js';
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import MVT from 'ol/format/MVT.js';
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import style from '../gpx/styles';
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import { DepartureBoard } from '@suid/icons-material';
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import deTileVectorSource from '../../lib/de-tile-vector-source';
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import ClusterableVectorTileSource from '../../lib/ClusterableVectorTileSource';
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const [getState, setState] = createSignal({
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lon: 0,
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@ -238,8 +240,7 @@ const Map: Component = () => {
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zIndex: Infinity,
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});
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const vectorTileSource = new VectorTileSource({
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format: new MVT({ featureClass: Feature }),
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const clusterableVectorTileSource = new ClusterableVectorTileSource({
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url: 'https://geo.dyomedea.com/services/spain/tiles/{z}/{x}/{y}.pbf',
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maxZoom: 14,
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});
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@ -247,11 +248,11 @@ const Map: Component = () => {
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console.log({
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caller: 'Map / projections',
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vector: vectorLayer.getSource()?.getProjection(),
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vectorTile: vectorTileSource.getProjection(),
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vectorTile: clusterableVectorTileSource.getProjection(),
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});
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const vectorTileLayer = new VectorTileLayer({
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source: vectorTileSource,
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source: clusterableVectorTileSource,
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style: [],
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declutter: false,
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});
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@ -262,7 +263,7 @@ const Map: Component = () => {
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zoom: +getState().zoom,
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rotation: +getState().rotation,
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}),
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layers: [tileLayer, vectorTileLayer, vectorLayer],
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layers: [tileLayer, vectorLayer, vectorTileLayer],
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target: target,
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controls: new Collection<Control>([
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new Attribution({ collapsible: true }),
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@ -285,114 +286,123 @@ const Map: Component = () => {
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olMap.on(['moveend'], changeListener);
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olMap.on(['singleclick'], clickHandler);
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// cf https://stackoverflow.com/questions/55161380/openlayers-cluster-with-mvt-vectortilesource-impossible
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// // cf https://stackoverflow.com/questions/55161380/openlayers-cluster-with-mvt-vectortilesource-impossible
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const vectorTileMirrorSource = new VectorSource();
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let featuresForZ: Feature[] = [];
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let viewZ = vectorTileLayer
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.getSource()
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.getTileGrid()
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.getZForResolution(olMap.getView().getResolution());
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// const vectorTileMirrorSource = new VectorSource();
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// let featuresForZ: Feature[] = [];
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// let viewZ = vectorTileLayer
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// .getSource()
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// .getTileGrid()
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// .getZForResolution(olMap.getView().getResolution());
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const vectorMirrorRefresh = () => {
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console.log({
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caller: 'Map / Cluster / vectorMirrorRefresh',
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olMap,
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vectorMirrorLayer,
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viewZ,
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featuresForZ,
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});
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vectorTileMirrorSource.clear();
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if (featuresForZ[viewZ]) {
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vectorTileMirrorSource.addFeatures(featuresForZ[viewZ]);
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// vectorMirrorLayer.getSource()?.refresh();
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}
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//vectorMirrorLayer.changed();
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};
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vectorTileLayer.getSource()?.on('tileloadend', (evt) => {
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const z = evt.tile.getTileCoord()[0];
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// const features = evt.tile.getFeatures();
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// features.forEach((feature: Feature) => {
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// feature.setId(undefined);
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// });
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const features = evt.tile
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.getFeatures()
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.filter((feature: Feature) => feature.get('type') === 'poi')
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.map((feature: Feature) => {
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const center = olExtent.getCenter(feature.getGeometry().getExtent());
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const centerLonLat = toLonLat(
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center,
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olMap.getView().getProjection()
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);
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const newFeature = feature.clone();
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newFeature.setGeometry(new Point(centerLonLat));
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// const vectorMirrorRefresh = () => {
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// console.log({
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// caller: 'Map / Cluster / on tileloadend / new feature',
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// feature,
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// center,
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// centerLonLat,
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// newFeature,
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// caller: 'Map / Cluster / vectorMirrorRefresh',
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// olMap,
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// vectorMirrorLayer,
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// viewZ,
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// featuresForZ,
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// });
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return newFeature;
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});
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if (!Array.isArray(featuresForZ[z])) {
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featuresForZ[z] = [];
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}
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featuresForZ[z] = featuresForZ[z].concat(features);
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// evt.tile.setFeatures([]);
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if (z === viewZ) {
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vectorMirrorRefresh();
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}
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console.log({
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caller: 'Map / Cluster / on tileloadend',
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olMap,
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z,
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viewZ,
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features,
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vectorMirrorLayer,
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featuresForZ,
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});
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});
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// vectorTileMirrorSource.clear();
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// if (featuresForZ[viewZ]) {
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// vectorTileMirrorSource.addFeatures(featuresForZ[viewZ]);
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// // vectorMirrorLayer.getSource()?.refresh();
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// }
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// //vectorMirrorLayer.changed();
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// };
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olMap.getView().on('change:resolution', function () {
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// use VT features from the tile z level corresponding to view resolution
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const newZ = vectorTileLayer
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.getSource()
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.getTileGrid()
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.getZForResolution(olMap.getView().getResolution());
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console.log({
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caller: 'Map / Cluster / on change:resolution',
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olMap,
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newZ,
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viewZ,
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vectorMirrorLayer,
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featuresForZ,
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});
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if (newZ !== viewZ) {
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viewZ = newZ;
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vectorMirrorRefresh();
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}
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});
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// vectorTileLayer.getSource()?.on('tileloadend', (evt) => {
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// const z = evt.tile.getTileCoord()[0];
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// // const features = evt.tile.getFeatures();
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// // features.forEach((feature: Feature) => {
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// // feature.setId(undefined);
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// // });
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// const features = evt.tile
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// .getFeatures()
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// .filter((feature: Feature) => feature.get('type') === 'poi')
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// .map((feature: Feature) => {
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// const center = olExtent.getCenter(feature.getGeometry().getExtent());
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// const centerLonLat = toLonLat(
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// center,
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// olMap.getView().getProjection()
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// );
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// const newFeature = feature.clone();
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// newFeature.setGeometry(new Point(centerLonLat));
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// // console.log({
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// // caller: 'Map / Cluster / on tileloadend / new feature',
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// // feature,
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// // center,
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// // centerLonLat,
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// // newFeature,
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// // });
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// return newFeature;
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// });
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// if (!Array.isArray(featuresForZ[z])) {
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// featuresForZ[z] = [];
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// }
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// featuresForZ[z] = featuresForZ[z].concat(features);
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// // evt.tile.setFeatures([]);
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// if (z === viewZ) {
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// vectorMirrorRefresh();
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// }
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// console.log({
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// caller: 'Map / Cluster / on tileloadend',
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// olMap,
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// z,
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// viewZ,
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// features,
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// vectorMirrorLayer,
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// featuresForZ,
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// });
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// });
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let vectorMirrorLayer = new VectorLayer({
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// olMap.getView().on('change:resolution', function () {
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// // use VT features from the tile z level corresponding to view resolution
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// const newZ = vectorTileLayer
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// .getSource()
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// .getTileGrid()
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// .getZForResolution(olMap.getView().getResolution());
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// console.log({
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// caller: 'Map / Cluster / on change:resolution',
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// olMap,
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// newZ,
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// viewZ,
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// vectorMirrorLayer,
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// featuresForZ,
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// });
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// if (newZ !== viewZ) {
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// viewZ = newZ;
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// vectorMirrorRefresh();
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// }
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// });
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let clusterLayer = new VectorLayer({
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// source: vectorTileMirrorSource,
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source: new Cluster({
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source: vectorTileMirrorSource,
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// geometryFunction: (feature: Feature) => {
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// // console.log({
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// // caller: 'Map / Cluster / geometryFunction',
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// // feature,
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// // });
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// // test data is linestrings
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// // return new Point(
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// // olExtent.getCenter(feature.getGeometry().getExtent())
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// // );
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// if (feature.get('type') === 'poi') {
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// return feature.getGeometry();
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// }
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// return null;
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// },
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// source: deTileVectorSource(vectorLayer.getSource()),
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source: clusterableVectorTileSource,
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geometryFunction: (feature: Feature) => {
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// console.log({
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// caller: 'Map / Cluster / geometryFunction',
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// feature,
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// });
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// test data is linestrings
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// return new Point(
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// olExtent.getCenter(feature.getGeometry().getExtent())
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// );
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if (feature.get('type') === 'poi') {
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return new Point(
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olExtent.getCenter(feature.getGeometry().getExtent())
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);
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// return new Point(
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// toLonLat(
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// olExtent.getCenter(feature.getGeometry().getExtent()),
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// olMap.getView().getProjection()
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// )
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// );
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}
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return null;
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},
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createCluster: (point: Point, features: Feature[]) => {
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// console.log({
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// caller: 'Map / Cluster / createCluster',
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@ -400,18 +410,24 @@ const Map: Component = () => {
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// features,
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// });
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// return features[0];
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//return features[0];
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return new Feature({
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geometry: point,
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geometry: new Point(
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toLonLat(
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olExtent.getCenter(point.getExtent()),
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olMap.getView().getProjection()
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)
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),
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features: features,
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type: 'cluster',
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});
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},
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distance: 100,
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minDistance: 10,
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distance: 100000,
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minDistance: 0,
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}),
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zIndex: Infinity,
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style,
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// style,
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style: function (feature) {
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// console.log({
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// caller: 'Map / Cluster / style',
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@ -431,19 +447,25 @@ const Map: Component = () => {
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// }),
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// }),
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});
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olMap.addLayer(vectorMirrorLayer);
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olMap.addLayer(clusterLayer);
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setMap(olMap);
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console.log({
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caller: 'Map / projections',
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olMap,
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projections: {
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map: olMap.getView().getProjection(),
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vectorSource: vectorLayer.getSource()?.getProjection(),
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vectorTileMirrorSource: vectorTileMirrorSource.getProjection(),
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vectorTileSource: vectorTileSource.getProjection(),
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clusterSource: vectorMirrorLayer.getSource()?.getProjection(),
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clusterSource: clusterLayer.getSource().getProjection(),
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clusterSourceSource: clusterLayer
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.getSource()
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?.getSource()
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.getProjection(),
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},
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});
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setMap(olMap);
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});
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return (
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@ -0,0 +1,112 @@
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import { Feature } from 'ol';
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import { equals, Extent } from 'ol/extent';
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import MVT from 'ol/format/MVT';
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import { fromLonLat, Projection } from 'ol/proj';
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import VectorTileSource from 'ol/source/VectorTile.js';
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class ClusterableVectorTileSource extends VectorTileSource {
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extent: Extent | null = null;
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extentProjected: Extent | null = null;
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featuresSent: boolean = false;
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changeHandler = () => {
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this.featuresSent = false;
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console.log({
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caller: 'ClusterableVectorTileSource',
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method: 'changeHandler',
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this: this,
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});
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};
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constructor(properties: any) {
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properties.format = new MVT({ featureClass: Feature });
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super(properties);
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this.addEventListener('change', this.changeHandler);
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console.log({
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caller: 'ClusterableVectorTileSource',
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method: 'constructor',
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this: this,
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});
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}
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loadFeatures = (
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extent: Extent,
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resolution: number,
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projection: Projection
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) => {
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console.log({
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caller: 'ClusterableVectorTileSource',
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method: 'loadFeatures',
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extent,
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resolution,
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projection,
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this: this,
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});
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if (this.extent === null || !equals(this.extent, extent)) {
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this.extent = extent;
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if (this.projection != null) {
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this.extentProjected = fromLonLat(
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extent.slice(0, 2),
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this.projection
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).concat(fromLonLat(extent.slice(2), this.projection));
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}
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}
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if (!this.featuresSent) {
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super.dispatchEvent('change');
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}
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this.featuresSent = false;
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};
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getFeatures = () => {
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const result =
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this.extentProjected !== null
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? super.getFeaturesInExtent(this.extentProjected)
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: [];
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console.log({
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caller: 'ClusterableVectorTileSource',
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method: 'getFeatures',
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result,
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this: this,
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});
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//console.trace();
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this.featuresSent = true;
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return result;
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};
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getFeaturesInExtent = (extent: Extent) => {
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const features = super.getFeaturesInExtent(extent);
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console.log({
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caller: 'ClusterableVectorTileSource',
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method: 'getFeaturesInExtent',
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extent,
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features,
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this: this,
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});
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return features;
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// if (this.projection === null) {
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// return super.getFeaturesInExtent(extent);
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// }
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// return super.getFeaturesInExtent(
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// (this.extentProjected = fromLonLat(
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// extent.slice(0, 2),
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// this.projection
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// ).concat(fromLonLat(extent.slice(2), this.projection)))
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// );
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};
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addEventListener = (type: string, listener: any) => {
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console.log({
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caller: 'ClusterableVectorTileSource',
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method: 'addEventListener',
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type,
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listener,
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this: this,
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});
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super.addEventListener(type, listener);
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if (type === 'change') {
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super.addEventListener('tileloadend', listener);
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}
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};
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}
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export default ClusterableVectorTileSource;
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