com.bbn.openmap.dataAccess.shape
Class ShapeGeoIndex

java.lang.Object
  java.util.AbstractCollection
      com.bbn.openmap.geo.ExtentIndex.AbstractExtentIndex
          com.bbn.openmap.geo.ExtentIndex.ArrayListExtentIndexImpl
              com.bbn.openmap.dataAccess.shape.ShapeGeoIndex

All Implemented Interfaces:

ExtentIndex, java.lang.Iterable, java.util.Collection

public class ShapeGeoIndex
extends ExtentIndex.ArrayListExtentIndexImpl

A GeoExtentIndex that knows how to work with Shape files. Plots the shape file contents in memory in lat/lon space, can then be used with the Intersection class to do spatial analysis on the shape file contents.

Author:

ddietrick

Nested Class Summary

static class

ShapeGeoIndex.Builder Use this class to create a ShapeGeoIndex.

Nested classes/interfaces inherited from interface com.bbn.openmap.geo.ExtentIndex

ExtentIndex.AbstractExtentIndex, ExtentIndex.ArrayListExtentIndexImpl, ExtentIndex.HashSetExtentIndexImpl

Field Summary

protected java.util.HashMap<java.lang.Object,OMGraphic>

omgraphics

Fields inherited from class com.bbn.openmap.geo.ExtentIndex.AbstractExtentIndex

all, buckets, D_MARGIN, D_NBUCKETS, discarded, margin, nbuckets, polar

Method Summary

OMGraphic	getForID(java.lang.Object id) After you test for intersections with some GeoExtent, you get an iterator of GeoExtents.
java.util.Iterator	getIntersections(GeoExtent extent) Get an iterator with all of the objects in this ShapeGeoIndex that intersect with the given extent.
java.util.Iterator	getIntersections(GeoExtent extent, MatchFilter filter, MatchCollector collector) Get an iterator with all of the objects in this ShapeGeoIndex that intersect with the given extent.
void	load(EsriGraphicList list)

Methods inherited from class com.bbn.openmap.geo.ExtentIndex.ArrayListExtentIndexImpl

makeBucket

Methods inherited from class com.bbn.openmap.geo.ExtentIndex.AbstractExtentIndex

add, addExtent, bucketFor, clear, indexHorizontalRange, iterator, iterator, lookup, lookup, lookupByBoundingCircle, lookupByPath, lookupBySegment, makeBucket, normalizeLon, normalizeLons, removeExtent, size, toString

Methods inherited from class java.util.AbstractCollection

addAll, contains, containsAll, isEmpty, remove, removeAll, retainAll, toArray, toArray

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Collection

addAll, contains, containsAll, equals, hashCode, isEmpty, remove, removeAll, retainAll, toArray, toArray

Field Detail

omgraphics

protected java.util.HashMap<java.lang.Object,OMGraphic> omgraphics

Method Detail

getForID

public OMGraphic getForID(java.lang.Object id)

After you test for intersections with some GeoExtent, you get an iterator of GeoExtents. You can get the ID from each of those, which will in turn allow you to ask for the OMGraphic representing the shape from the given file. The ID is an integer index into the shape file and attribute dbf file, btw.

Parameters:

id - The id provided by the extent in the intersection test.

Returns:

OMGraphic or null (if not found).

load

public void load(EsriGraphicList list)

getIntersections

public java.util.Iterator getIntersections(GeoExtent extent)

Get an iterator with all of the objects in this ShapeGeoIndex that intersect with the given extent.

Parameters:

extent - GeoExtent (GeoPoint, GeoPath, GeoRegion) to test against.

Returns:

Iterator over intersecting shape objects.

getIntersections

public java.util.Iterator getIntersections(GeoExtent extent,
                                           MatchFilter filter,
                                           MatchCollector collector)

Get an iterator with all of the objects in this ShapeGeoIndex that intersect with the given extent.

Parameters:

extent - GeoExtext (GeoPoint, GeoPath, GeoRegion) to test against.

filter - MatchFilter a MatchFilter can eliminate

collector -

Returns:

Iterator over intersecting shape objects.