de.cismet.cismap.commons.tools

Class GeometryUtils

java.lang.Object

de.cismet.cismap.commons.tools.GeometryUtils

public class GeometryUtils
extends Object

Contains some useful geometry processing operations.

Version:

$Revision$, $Date$

Author:

therter

Constructor Summary

Constructors

Constructor and Description
GeometryUtils()

Method Summary

Modifier and Type	Method and Description
static void	clearDbfFile(String fileName) Removes all content from the given shp or shx file, so that the file contains only the header.
static void	clearShpOrShxFile(String fileName, int shpGeoType) Removes all content from the given shp or shx file, so that the file contains only the header.
static com.vividsolutions.jts.geom.Geometry	createDummyGeometry(String geometryType) Creates a dummy geometry of the given type.
static com.vividsolutions.jts.geom.Geometry	force2d(com.vividsolutions.jts.geom.Geometry g) Convert the given 2d/3d geometry to a 2d geometry.
static byte	getShpGeometryType(String geometryType) Determines the shape geometry type.
static com.vividsolutions.jts.geom.Geometry	reverseGeometryCoordinates(com.vividsolutions.jts.geom.Geometry g) The axis order of the coordinates of the given geometry will be changed.

Methods inherited from class java.lang.Object

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

Constructor Detail

GeometryUtils

public GeometryUtils()

Method Detail

createDummyGeometry

public static com.vividsolutions.jts.geom.Geometry createDummyGeometry(String geometryType)

Creates a dummy geometry of the given type.

Parameters:

geometryType - DOCUMENT ME!

Returns:

a dummy geometry of the given type

force2d

public static com.vividsolutions.jts.geom.Geometry force2d(com.vividsolutions.jts.geom.Geometry g)

Convert the given 2d/3d geometry to a 2d geometry.

Parameters:

g - DOCUMENT ME!

Returns:

DOCUMENT ME!

reverseGeometryCoordinates

public static com.vividsolutions.jts.geom.Geometry reverseGeometryCoordinates(com.vividsolutions.jts.geom.Geometry g)

The axis order of the coordinates of the given geometry will be changed.

Parameters:

g - the geometry to change the axis order

Returns:

the given geometry with a changed axis order.

getShpGeometryType

public static byte getShpGeometryType(String geometryType)

Determines the shape geometry type. In a shape file, every geometry type is described by one byte.

Parameters:

geometryType - DOCUMENT ME!

Returns:

the shape geometry type.

clearShpOrShxFile

public static void clearShpOrShxFile(String fileName,
                                     int shpGeoType)
                              throws IOException

Removes all content from the given shp or shx file, so that the file contains only the header.

Parameters:

fileName - the file to clear

shpGeoType - DOCUMENT ME!

Throws:

IOException - DOCUMENT ME!

clearDbfFile

public static void clearDbfFile(String fileName)
                         throws IOException

Removes all content from the given shp or shx file, so that the file contains only the header.

Parameters:

fileName - the file to clear

Throws:

IOException - DOCUMENT ME!