com.nutiteq.datasources.vector

Class TileVectorDataSource<T extends com.nutiteq.geometry.VectorElement>

java.lang.Object

com.nutiteq.vectordatasources.AbstractVectorDataSource<T>

com.nutiteq.datasources.vector.TileVectorDataSource<T>

Type Parameters:

T - Vector element data type

All Implemented Interfaces:

com.nutiteq.vectordatasources.VectorDataSource<T>

public class TileVectorDataSource<T extends com.nutiteq.geometry.VectorElement>
extends com.nutiteq.vectordatasources.AbstractVectorDataSource<T>

Tiling vector data source. Splits incoming requests for data into tiles. Tile size is uniform across the request and depends on current zoom level. Also handles trivial caching - if new requests touches same tile as previous request, the tile from previous request is reused.

Nested Class Summary

Nested classes/interfaces inherited from interface com.nutiteq.vectordatasources.VectorDataSource

com.nutiteq.vectordatasources.VectorDataSource.OnChangeListener

Field Summary

Fields inherited from class com.nutiteq.vectordatasources.AbstractVectorDataSource

projection

Constructor Summary

Constructors

Constructor and Description
TileVectorDataSource(com.nutiteq.vectordatasources.VectorDataSource<T> dataSource) Default constructor

Method Summary

Methods

Modifier and Type	Method and Description
com.nutiteq.components.Envelope	getDataExtent()
Collection<T>	loadElements(com.nutiteq.components.CullState cullState)

Methods inherited from class com.nutiteq.vectordatasources.AbstractVectorDataSource

addOnChangeListener, getProjection, notifyElementChanged, notifyElementsChanged, onElementChanged, removeOnChangeListener

Methods inherited from class java.lang.Object

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

Constructor Detail

TileVectorDataSource

public TileVectorDataSource(com.nutiteq.vectordatasources.VectorDataSource<T> dataSource)

Default constructor

Parameters:

dataSource - original data source

Method Detail

getDataExtent

public com.nutiteq.components.Envelope getDataExtent()

loadElements

public Collection<T> loadElements(com.nutiteq.components.CullState cullState)