Pablo
101 lines
3.7 KiB
Java
101 lines
3.7 KiB
Java
package com.google.maps.android.clustering.algo;
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import androidx.collection.LongSparseArray;
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import com.google.maps.android.clustering.Cluster;
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import com.google.maps.android.clustering.ClusterItem;
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import com.google.maps.android.projection.Point;
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import com.google.maps.android.projection.SphericalMercatorProjection;
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import java.util.Collection;
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import java.util.Collections;
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import java.util.HashSet;
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import java.util.Set;
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/* JADX INFO: loaded from: classes2.dex */
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public class GridBasedAlgorithm<T extends ClusterItem> extends AbstractAlgorithm<T> {
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private static final int DEFAULT_GRID_SIZE = 100;
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private int mGridSize = 100;
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private final Set<T> mItems = Collections.synchronizedSet(new HashSet());
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@Override // com.google.maps.android.clustering.algo.Algorithm
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public boolean addItem(T t) {
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return this.mItems.add(t);
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}
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@Override // com.google.maps.android.clustering.algo.Algorithm
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public boolean addItems(Collection<T> collection) {
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return this.mItems.addAll(collection);
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}
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@Override // com.google.maps.android.clustering.algo.Algorithm
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public void clearItems() {
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this.mItems.clear();
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}
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@Override // com.google.maps.android.clustering.algo.Algorithm
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public boolean removeItem(T t) {
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return this.mItems.remove(t);
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}
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@Override // com.google.maps.android.clustering.algo.Algorithm
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public boolean removeItems(Collection<T> collection) {
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return this.mItems.removeAll(collection);
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}
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@Override // com.google.maps.android.clustering.algo.Algorithm
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public boolean updateItem(T t) {
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boolean zRemoveItem;
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synchronized (this.mItems) {
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zRemoveItem = removeItem(t);
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if (zRemoveItem) {
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zRemoveItem = addItem(t);
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}
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}
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return zRemoveItem;
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}
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@Override // com.google.maps.android.clustering.algo.Algorithm
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public void setMaxDistanceBetweenClusteredItems(int i) {
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this.mGridSize = i;
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}
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@Override // com.google.maps.android.clustering.algo.Algorithm
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public int getMaxDistanceBetweenClusteredItems() {
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return this.mGridSize;
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}
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@Override // com.google.maps.android.clustering.algo.Algorithm
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public Set<? extends Cluster<T>> getClusters(float f) {
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long j;
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long jCeil = (long) Math.ceil((Math.pow(2.0d, f) * 256.0d) / ((double) this.mGridSize));
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SphericalMercatorProjection sphericalMercatorProjection = new SphericalMercatorProjection(jCeil);
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HashSet hashSet = new HashSet();
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LongSparseArray longSparseArray = new LongSparseArray();
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synchronized (this.mItems) {
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for (T t : this.mItems) {
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Point point = sphericalMercatorProjection.toPoint(t.getPosition());
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long coord = getCoord(jCeil, point.x, point.y);
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StaticCluster staticCluster = (StaticCluster) longSparseArray.get(coord);
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if (staticCluster == null) {
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j = jCeil;
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staticCluster = new StaticCluster(sphericalMercatorProjection.toLatLng(new com.google.maps.android.geometry.Point(Math.floor(point.x) + 0.5d, Math.floor(point.y) + 0.5d)));
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longSparseArray.put(coord, staticCluster);
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hashSet.add(staticCluster);
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} else {
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j = jCeil;
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}
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staticCluster.add(t);
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jCeil = j;
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}
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}
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return hashSet;
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}
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@Override // com.google.maps.android.clustering.algo.Algorithm
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public Collection<T> getItems() {
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return this.mItems;
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}
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private static long getCoord(long j, double d, double d2) {
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return (long) ((j * Math.floor(d)) + Math.floor(d2));
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}
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} |