spatial
Class LayerWindowQuery

java.lang.Object
  |
  +--spatial.BasicSpatialQuery
        |
        +--spatial.WindowQuery
              |
              +--spatial.LayerWindowQuery

All Implemented Interfaces:

LayerQuery, SpatialQuery

Direct Known Subclasses:

LayerScaleWindowQuery

public class LayerWindowQuery

extends WindowQuery

implements LayerQuery

Class offering the operations required for a layer window query performed by a spatial search tree which stores the layer in the leafs: The query rectangle must be intersected by the object and the layer must be equal to the query layer.

Field Summary

Fields inherited from class spatial.BasicSpatialQuery

tolerance

Constructor Summary

LayerWindowQuery(int queryLayer)
Constructor.

Method Summary

boolean	conditionFulfilled(MBR rect, SpatialSearchTreeObject obj) Test for intersection.
int	getQueryLayer() Returns the index of the query layer.

Methods inherited from class spatial.BasicSpatialQuery

areEqual, conditionFulfilled, conditionFulfilled, setTolerance

Methods inherited from class java.lang.Object

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

Constructor Detail

LayerWindowQuery

public LayerWindowQuery(int queryLayer)

Constructor.

Parameters:

queryLayer - the index of the query layer

Method Detail

conditionFulfilled

public boolean conditionFulfilled(MBR rect,
                                  SpatialSearchTreeObject obj)

Test for intersection. Supports tolerance.

Specified by:

conditionFulfilled in interface SpatialQuery

Overrides:

conditionFulfilled in class BasicSpatialQuery

Parameters:

rect - query rectangle

obj - leaf object

Returns:

condition fulfilled?

getQueryLayer

public int getQueryLayer()

Returns the index of the query layer.

Specified by:

getQueryLayer in interface LayerQuery

Returns:

the index of the query layer