Package org.goplanit.osm.util

Class PlanitJtsIntersectOsmNodeVisitor

java.lang.Object

org.goplanit.osm.util.PlanitJtsIntersectOsmNodeVisitor

All Implemented Interfaces:

org.locationtech.jts.index.ItemVisitor

public class PlanitJtsIntersectOsmNodeVisitor
extends Object
implements org.locationtech.jts.index.ItemVisitor

An item visitor for quadtree spatial index to filter out osm nodes 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
PlanitJtsIntersectOsmNodeVisitor(org.locationtech.jts.geom.Polygon geometryFilter, Collection<de.topobyte.osm4j.core.model.iface.OsmNode> filteredResultToPopulate)	Constructor

Method Summary

Modifier and Type	Method	Description
Collection<de.topobyte.osm4j.core.model.iface.OsmNode>	getResult()	Collect the filtered result created by the visitor
void	visitItem(Object osmNode)

Methods inherited from class java.lang.Object

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

Constructor Detail

PlanitJtsIntersectOsmNodeVisitor

public PlanitJtsIntersectOsmNodeVisitor(org.locationtech.jts.geom.Polygon geometryFilter,
                                        Collection<de.topobyte.osm4j.core.model.iface.OsmNode> filteredResultToPopulate)

Constructor

Parameters:

geometryFilter - to use

filteredResultToPopulate - to populate

Method Detail

visitItem

public void visitItem(Object osmNode)

Specified by:

visitItem in interface org.locationtech.jts.index.ItemVisitor

getResult

public Collection<de.topobyte.osm4j.core.model.iface.OsmNode> getResult()

Collect the filtered result created by the visitor

Returns:

result