Automated class transform
npx lebab --replace src --transform class
This commit is contained in:
Tim Schaub
@@ -47,175 +47,172 @@ import VectorSource from '../source/Vector.js';
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* @extends {module:ol/source/Vector}
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* @api
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*/
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const Cluster = function(options) {
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VectorSource.call(this, {
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attributions: options.attributions,
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extent: options.extent,
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projection: options.projection,
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wrapX: options.wrapX
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});
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class Cluster {
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constructor(options) {
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VectorSource.call(this, {
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attributions: options.attributions,
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extent: options.extent,
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projection: options.projection,
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wrapX: options.wrapX
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});
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/**
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* @type {number|undefined}
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* @protected
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*/
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this.resolution = undefined;
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/**
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* @type {number}
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* @protected
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*/
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this.distance = options.distance !== undefined ? options.distance : 20;
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/**
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* @type {Array.<module:ol/Feature>}
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* @protected
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*/
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this.features = [];
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/**
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* @param {module:ol/Feature} feature Feature.
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* @return {module:ol/geom/Point} Cluster calculation point.
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* @protected
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*/
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this.geometryFunction = options.geometryFunction || function(feature) {
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const geometry = /** @type {module:ol/geom/Point} */ (feature.getGeometry());
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assert(geometry instanceof Point,
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10); // The default `geometryFunction` can only handle `module:ol/geom/Point~Point` geometries
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return geometry;
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};
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/**
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* @type {module:ol/source/Vector}
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* @protected
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*/
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this.source = options.source;
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listen(this.source, EventType.CHANGE, this.refresh, this);
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}
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/**
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* @type {number|undefined}
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* @protected
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* Get the distance in pixels between clusters.
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* @return {number} Distance.
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* @api
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*/
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this.resolution = undefined;
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getDistance() {
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return this.distance;
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}
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/**
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* @type {number}
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* @protected
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* Get a reference to the wrapped source.
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* @return {module:ol/source/Vector} Source.
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* @api
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*/
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this.distance = options.distance !== undefined ? options.distance : 20;
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getSource() {
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return this.source;
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}
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/**
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* @type {Array.<module:ol/Feature>}
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* @protected
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* @inheritDoc
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*/
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this.features = [];
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loadFeatures(extent, resolution, projection) {
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this.source.loadFeatures(extent, resolution, projection);
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if (resolution !== this.resolution) {
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this.clear();
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this.resolution = resolution;
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this.cluster();
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this.addFeatures(this.features);
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}
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}
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/**
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* @param {module:ol/Feature} feature Feature.
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* @return {module:ol/geom/Point} Cluster calculation point.
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* @protected
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* Set the distance in pixels between clusters.
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* @param {number} distance The distance in pixels.
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* @api
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*/
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this.geometryFunction = options.geometryFunction || function(feature) {
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const geometry = /** @type {module:ol/geom/Point} */ (feature.getGeometry());
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assert(geometry instanceof Point,
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10); // The default `geometryFunction` can only handle `module:ol/geom/Point~Point` geometries
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return geometry;
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};
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setDistance(distance) {
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this.distance = distance;
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this.refresh();
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}
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/**
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* handle the source changing
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* @override
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*/
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refresh() {
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this.clear();
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this.cluster();
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this.addFeatures(this.features);
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VectorSource.prototype.refresh.call(this);
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}
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/**
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* @type {module:ol/source/Vector}
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* @protected
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*/
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this.source = options.source;
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cluster() {
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if (this.resolution === undefined) {
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return;
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}
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this.features.length = 0;
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const extent = createEmpty();
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const mapDistance = this.distance * this.resolution;
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const features = this.source.getFeatures();
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listen(this.source, EventType.CHANGE, this.refresh, this);
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};
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/**
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* @type {!Object.<string, boolean>}
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*/
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const clustered = {};
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for (let i = 0, ii = features.length; i < ii; i++) {
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const feature = features[i];
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if (!(getUid(feature).toString() in clustered)) {
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const geometry = this.geometryFunction(feature);
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if (geometry) {
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const coordinates = geometry.getCoordinates();
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createOrUpdateFromCoordinate(coordinates, extent);
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buffer(extent, mapDistance, extent);
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let neighbors = this.source.getFeaturesInExtent(extent);
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neighbors = neighbors.filter(function(neighbor) {
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const uid = getUid(neighbor).toString();
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if (!(uid in clustered)) {
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clustered[uid] = true;
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return true;
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} else {
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return false;
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}
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});
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this.features.push(this.createCluster(neighbors));
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}
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}
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}
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}
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/**
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* @param {Array.<module:ol/Feature>} features Features
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* @return {module:ol/Feature} The cluster feature.
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* @protected
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*/
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createCluster(features) {
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const centroid = [0, 0];
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for (let i = features.length - 1; i >= 0; --i) {
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const geometry = this.geometryFunction(features[i]);
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if (geometry) {
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addCoordinate(centroid, geometry.getCoordinates());
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} else {
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features.splice(i, 1);
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}
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}
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scaleCoordinate(centroid, 1 / features.length);
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const cluster = new Feature(new Point(centroid));
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cluster.set('features', features);
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return cluster;
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}
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}
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inherits(Cluster, VectorSource);
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/**
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* Get the distance in pixels between clusters.
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* @return {number} Distance.
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* @api
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*/
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Cluster.prototype.getDistance = function() {
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return this.distance;
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};
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/**
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* Get a reference to the wrapped source.
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* @return {module:ol/source/Vector} Source.
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* @api
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*/
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Cluster.prototype.getSource = function() {
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return this.source;
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};
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/**
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* @inheritDoc
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*/
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Cluster.prototype.loadFeatures = function(extent, resolution, projection) {
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this.source.loadFeatures(extent, resolution, projection);
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if (resolution !== this.resolution) {
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this.clear();
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this.resolution = resolution;
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this.cluster();
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this.addFeatures(this.features);
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}
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};
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/**
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* Set the distance in pixels between clusters.
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* @param {number} distance The distance in pixels.
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* @api
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*/
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Cluster.prototype.setDistance = function(distance) {
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this.distance = distance;
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this.refresh();
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};
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/**
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* handle the source changing
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* @override
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*/
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Cluster.prototype.refresh = function() {
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this.clear();
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this.cluster();
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this.addFeatures(this.features);
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VectorSource.prototype.refresh.call(this);
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};
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/**
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* @protected
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*/
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Cluster.prototype.cluster = function() {
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if (this.resolution === undefined) {
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return;
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}
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this.features.length = 0;
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const extent = createEmpty();
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const mapDistance = this.distance * this.resolution;
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const features = this.source.getFeatures();
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/**
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* @type {!Object.<string, boolean>}
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*/
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const clustered = {};
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for (let i = 0, ii = features.length; i < ii; i++) {
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const feature = features[i];
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if (!(getUid(feature).toString() in clustered)) {
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const geometry = this.geometryFunction(feature);
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if (geometry) {
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const coordinates = geometry.getCoordinates();
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createOrUpdateFromCoordinate(coordinates, extent);
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buffer(extent, mapDistance, extent);
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let neighbors = this.source.getFeaturesInExtent(extent);
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neighbors = neighbors.filter(function(neighbor) {
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const uid = getUid(neighbor).toString();
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if (!(uid in clustered)) {
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clustered[uid] = true;
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return true;
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} else {
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return false;
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}
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});
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this.features.push(this.createCluster(neighbors));
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}
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}
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}
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};
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/**
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* @param {Array.<module:ol/Feature>} features Features
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* @return {module:ol/Feature} The cluster feature.
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* @protected
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*/
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Cluster.prototype.createCluster = function(features) {
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const centroid = [0, 0];
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for (let i = features.length - 1; i >= 0; --i) {
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const geometry = this.geometryFunction(features[i]);
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if (geometry) {
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addCoordinate(centroid, geometry.getCoordinates());
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} else {
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features.splice(i, 1);
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}
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}
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scaleCoordinate(centroid, 1 / features.length);
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const cluster = new Feature(new Point(centroid));
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cluster.set('features', features);
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return cluster;
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};
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export default Cluster;
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