com.bbn.openmap.layer.shape
Class SpatialIndex.MemoryIndex

java.lang.Object
  com.bbn.openmap.layer.shape.SpatialIndex.MemoryIndex

Enclosing class:

SpatialIndex

public static class SpatialIndex.MemoryIndex
extends java.lang.Object

Constructor Summary

protected

SpatialIndex.MemoryIndex()

Method Summary

static java.util.List<SpatialIndex.Entry>	create(java.lang.String shpFile)
java.util.List<SpatialIndex.Entry>	createIndex(java.lang.String inFile) Creates a spatial index for a shape file.
protected void	indexNulls(java.io.InputStream is, long ptr, java.util.List<SpatialIndex.Entry> entries) Writes the spatial index for a null shape file.
protected void	indexPoints(java.io.InputStream is, long ptr, java.util.List<SpatialIndex.Entry> entries) Writes the spatial index for a point shape file.
protected void	indexPolygons(java.io.InputStream is, long ptr, java.util.List<SpatialIndex.Entry> entries) Writes the spatial index for a polygon shape file.

Methods inherited from class java.lang.Object

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

Constructor Detail

SpatialIndex.MemoryIndex

protected SpatialIndex.MemoryIndex()

Method Detail

create

public static java.util.List<SpatialIndex.Entry> create(java.lang.String shpFile)

indexPolygons

protected void indexPolygons(java.io.InputStream is,
                             long ptr,
                             java.util.List<SpatialIndex.Entry> entries)

Writes the spatial index for a polygon shape file.

Parameters:

is - the shape file input stream

ptr - the current position in the file

entries - a List of Entries to add to

indexPoints

protected void indexPoints(java.io.InputStream is,
                           long ptr,
                           java.util.List<SpatialIndex.Entry> entries)

Writes the spatial index for a point shape file.

Parameters:

is - the shape file input stream

ptr - the current position in the file

entries - a List of Entries to add to

indexNulls

protected void indexNulls(java.io.InputStream is,
                          long ptr,
                          java.util.List<SpatialIndex.Entry> entries)

Writes the spatial index for a null shape file.

Parameters:

is - the shape file input stream

ptr - the current position in the file

entries - a List of Entries to add to

createIndex

public java.util.List<SpatialIndex.Entry> createIndex(java.lang.String inFile)

Creates a spatial index for a shape file. Reads the records from the shape file, writing appropriate index records to the spatial index file.

Parameters:

inFile - the shape file.