com.google.maps.android.clustering.algo

Class NonHierarchicalViewBasedAlgorithm<T extends ClusterItem>

java.lang.Object

com.google.maps.android.clustering.algo.AbstractAlgorithm<T>

com.google.maps.android.clustering.algo.NonHierarchicalDistanceBasedAlgorithm<T>

com.google.maps.android.clustering.algo.NonHierarchicalViewBasedAlgorithm<T>

Type Parameters:

T -

All Implemented Interfaces:

Algorithm<T>, ScreenBasedAlgorithm<T>

public class NonHierarchicalViewBasedAlgorithm<T extends ClusterItem>
extends NonHierarchicalDistanceBasedAlgorithm<T>
implements ScreenBasedAlgorithm<T>

This algorithm works the same way as NonHierarchicalDistanceBasedAlgorithm but works, only in visible area. It requires to be reclustered on camera movement because clustering is done only for visible area.

Nested Class Summary

Nested classes/interfaces inherited from class com.google.maps.android.clustering.algo.NonHierarchicalDistanceBasedAlgorithm

NonHierarchicalDistanceBasedAlgorithm.QuadItem<T extends ClusterItem>

Constructor Summary

Constructors

Constructor and Description
NonHierarchicalViewBasedAlgorithm(int screenWidth, int screenHeight)

Method Summary

Modifier and Type	Method and Description
protected java.util.Collection<NonHierarchicalDistanceBasedAlgorithm.QuadItem<T>>	getClusteringItems(PointQuadTree<NonHierarchicalDistanceBasedAlgorithm.QuadItem<T>> quadTree, float zoom)
void	onCameraChange(CameraPosition cameraPosition)
boolean	shouldReclusterOnMapMovement()
void	updateViewSize(int width, int height) Update view width and height in case map size was changed.

Methods inherited from class com.google.maps.android.clustering.algo.NonHierarchicalDistanceBasedAlgorithm

addItem, addItems, clearItems, getClusters, getItems, getMaxDistanceBetweenClusteredItems, removeItem, removeItems, setMaxDistanceBetweenClusteredItems, updateItem

Methods inherited from class com.google.maps.android.clustering.algo.AbstractAlgorithm

lock, unlock

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.google.maps.android.clustering.algo.Algorithm

addItem, addItems, clearItems, getClusters, getItems, getMaxDistanceBetweenClusteredItems, lock, removeItem, removeItems, setMaxDistanceBetweenClusteredItems, unlock, updateItem

Constructor Detail

NonHierarchicalViewBasedAlgorithm

public NonHierarchicalViewBasedAlgorithm(int screenWidth,
                                         int screenHeight)

Method Detail

onCameraChange

public void onCameraChange(CameraPosition cameraPosition)

Specified by:

onCameraChange in interface ScreenBasedAlgorithm<T extends ClusterItem>

getClusteringItems

protected java.util.Collection<NonHierarchicalDistanceBasedAlgorithm.QuadItem<T>> getClusteringItems(PointQuadTree<NonHierarchicalDistanceBasedAlgorithm.QuadItem<T>> quadTree,
                                                                                                     float zoom)

Overrides:

getClusteringItems in class NonHierarchicalDistanceBasedAlgorithm<T extends ClusterItem>

shouldReclusterOnMapMovement

public boolean shouldReclusterOnMapMovement()

Specified by:

shouldReclusterOnMapMovement in interface ScreenBasedAlgorithm<T extends ClusterItem>

updateViewSize

public void updateViewSize(int width,
                           int height)

Update view width and height in case map size was changed. You need to recluster all the clusters, to update view state after view size changes.

Parameters:

width - map width

height - map height