Package org.goplanit.utils.geo

Class PlanitJtsIntersectZoneVisitor<T extends Zone>

java.lang.Object

org.goplanit.utils.geo.PlanitJtsItemVisitor<T>

org.goplanit.utils.geo.PlanitJtsIntersectZoneVisitor<T>

All Implemented Interfaces:

org.locationtech.jts.index.ItemVisitor

public class PlanitJtsIntersectZoneVisitor<T extends Zone>
extends PlanitJtsItemVisitor<T>

An item visitor for quadtree spatial index to filter out the zones in a quadtree that truly intersect with the given bounding box provided in the query. Since spatial granularity of the "squares" in the quadtree might be too coarse it may select a too large a set of matches for any given bounding box. By providing this visitor we explicitly check the provided subset if it indeed intersects with the given filer, i.e., bounding box that we are searching for.

Author:

markr

Constructor Summary

Constructors

Constructor	Description
PlanitJtsIntersectZoneVisitor(org.locationtech.jts.geom.Polygon geometryFilter, Collection<T> filteredResultToPopulate)	Constructor

Method Summary

Modifier and Type	Method	Description
protected org.locationtech.jts.geom.Geometry	getGeometry(T zone)	The implementing class is expected to provide the envelope for the entity

Methods inherited from class org.goplanit.utils.geo.PlanitJtsItemVisitor

getResult, visitItem

Methods inherited from class java.lang.Object

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

Constructor Detail

PlanitJtsIntersectZoneVisitor

public PlanitJtsIntersectZoneVisitor(org.locationtech.jts.geom.Polygon geometryFilter,
                                     Collection<T> filteredResultToPopulate)

Constructor

Parameters:

geometryFilter - to use

filteredResultToPopulate - to populate

Method Detail

getGeometry

protected org.locationtech.jts.geom.Geometry getGeometry(T zone)

The implementing class is expected to provide the envelope for the entity

Specified by:

getGeometry in class PlanitJtsItemVisitor<T extends Zone>

Parameters:

zone - to extract envelope for

Returns:

envelope of the entity to match the filter