de.cismet.cismap.commons

Class CrsTransformer

java.lang.Object

de.cismet.cismap.commons.CrsTransformer

public class CrsTransformer
extends Object

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Version:

$Revision$, $Date$

Author:

therter

Constructor Summary

Constructors

Constructor and Description
CrsTransformer(String destCrs) Creates a new CrsTransformer object.

Method Summary

Modifier and Type	Method and Description
static String	createCrsFromSrid(int srid) creates the crs from the given srid.
static int	extractSridFromCrs(String crs) extracts the srid from the given srs.
<T extends com.vividsolutions.jts.geom.Geometry> T	fastTransformGeometry(T geom, String sourceCrs) DOCUMENT ME!
static double	getCrsFactor(com.vividsolutions.jts.geom.Point coord) DOCUMENT ME!
static int	getCurrentSrid() DOCUMENT ME!
String	getDestinationCrs() DOCUMENT ME!
static boolean	isDefaultCrs(String crs) DOCUMENT ME!
void	setSrid(com.vividsolutions.jts.geom.Geometry geom) Set the SRID of the given Geometry object to the destination CRS of this CRSTransformer object.
BoundingBox	transformBoundingBox(BoundingBox bbox, String sourceCrs) DOCUMENT ME!
XBoundingBox	transformBoundingBox(XBoundingBox bbox) DOCUMENT ME!
com.vividsolutions.jts.geom.Coordinate[]	transformGeometry(String sourceCrs, com.vividsolutions.jts.geom.Coordinate... coords) use this method carefully.
<T extends com.vividsolutions.jts.geom.Geometry> T	transformGeometry(T geom, String sourceCrs) DOCUMENT ME!
static void	transformPNodeToGivenCrs(edu.umd.cs.piccolo.PNode node, String oldCrs, String newCrs, WorldToScreenTransform oldWtst, WorldToScreenTransform newWtst) transforms the given PNode object and all its sub nodes to the given CRS.
static <T extends com.vividsolutions.jts.geom.Geometry> T	transformToCurrentCrs(T geom) transforms the given geometry to the current CRS.
static <T extends com.vividsolutions.jts.geom.Geometry> T	transformToDefaultCrs(T geom) transforms the given geometry to the default CRS.
static <T extends com.vividsolutions.jts.geom.Geometry> T	transformToGivenCrs(T geom, String crs) transforms the given geometry to the given CRS.
static <T extends com.vividsolutions.jts.geom.Geometry> T	transformToMetricCrs(T geom) transforms the given geometry to a metric CRS.
static <T extends com.vividsolutions.jts.geom.Geometry> T	transformToMetricCrs(T geom, List<Crs> crsList) transforms the given geometry to a metric CRS.

Methods inherited from class java.lang.Object

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

Constructor Detail

CrsTransformer

public CrsTransformer(String destCrs)
               throws org.deegree.model.crs.UnknownCRSException,
                      InvalidParameterException

Creates a new CrsTransformer object.

Parameters:

destCrs - the destination crs in the form "EPSG:XXXX"

Throws:

org.deegree.model.crs.UnknownCRSException - DOCUMENT ME!

InvalidParameterException - DOCUMENT ME!

Method Detail

getDestinationCrs

public String getDestinationCrs()

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Returns:

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transformBoundingBox

public BoundingBox transformBoundingBox(BoundingBox bbox,
                                        String sourceCrs)
                                 throws org.deegree.model.crs.UnknownCRSException,
                                        org.deegree.model.crs.CRSTransformationException,
                                        IllegalArgumentException

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Parameters:

bbox - DOCUMENT ME!

sourceCrs - DOCUMENT ME!

Returns:

DOCUMENT ME!

Throws:

org.deegree.model.crs.UnknownCRSException - DOCUMENT ME!

org.deegree.model.crs.CRSTransformationException - DOCUMENT ME!

IllegalArgumentException - DOCUMENT ME!

transformBoundingBox

public XBoundingBox transformBoundingBox(XBoundingBox bbox)
                                  throws org.deegree.model.crs.UnknownCRSException,
                                         org.deegree.model.crs.CRSTransformationException,
                                         IllegalArgumentException

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Parameters:

bbox - DOCUMENT ME!

Returns:

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Throws:

org.deegree.model.crs.UnknownCRSException - DOCUMENT ME!

org.deegree.model.crs.CRSTransformationException - DOCUMENT ME!

IllegalArgumentException - DOCUMENT ME!

transformGeometry

public <T extends com.vividsolutions.jts.geom.Geometry> T transformGeometry(T geom,
                                                                            String sourceCrs)
                                                                     throws org.deegree.model.crs.UnknownCRSException,
                                                                            org.deegree.model.crs.CRSTransformationException,
                                                                            IllegalArgumentException,
                                                                            org.deegree.model.spatialschema.GeometryException

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Parameters:

sourceCrs - DOCUMENT ME!

coords - coords DOCUMENT ME!

Returns:

a copy of the given geometry in the destination crs. The given geometry will not be changed!

Throws:

org.deegree.model.crs.UnknownCRSException - DOCUMENT ME!

org.deegree.model.crs.CRSTransformationException - DOCUMENT ME!

IllegalArgumentException - DOCUMENT ME!

org.deegree.model.spatialschema.GeometryException - DOCUMENT ME!

fastTransformGeometry

public <T extends com.vividsolutions.jts.geom.Geometry> T fastTransformGeometry(T geom,
                                                                                String sourceCrs)
                                                                         throws org.deegree.model.crs.UnknownCRSException,
                                                                                org.deegree.model.crs.CRSTransformationException,
                                                                                IllegalArgumentException,
                                                                                org.deegree.model.spatialschema.GeometryException

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Parameters:

sourceCrs - DOCUMENT ME!

coords - coords DOCUMENT ME!

Returns:

the given geometry transformed to the destination CRS. The given geometry will be changed!

Throws:

org.deegree.model.crs.UnknownCRSException - DOCUMENT ME!

org.deegree.model.crs.CRSTransformationException - DOCUMENT ME!

IllegalArgumentException - DOCUMENT ME!

org.deegree.model.spatialschema.GeometryException - DOCUMENT ME!

transformGeometry

public com.vividsolutions.jts.geom.Coordinate[] transformGeometry(String sourceCrs,
                                                                  com.vividsolutions.jts.geom.Coordinate... coords)
                                                           throws org.deegree.model.crs.UnknownCRSException,
                                                                  org.deegree.model.crs.CRSTransformationException,
                                                                  IllegalArgumentException,
                                                                  org.deegree.model.spatialschema.GeometryException

use this method carefully. If you transform the coordinates of a geometry, you should also change the SRID of the geomerty that contains the coordinates. That is required because the coordinates don't contain the SRID.

Parameters:

sourceCrs - the CRS of the given coordinates

coords - the coordinates to transform

Returns:

the new coordinates

Throws:

org.deegree.model.crs.UnknownCRSException - DOCUMENT ME!

org.deegree.model.crs.CRSTransformationException - DOCUMENT ME!

IllegalArgumentException - DOCUMENT ME!

org.deegree.model.spatialschema.GeometryException - DOCUMENT ME!

setSrid

public void setSrid(com.vividsolutions.jts.geom.Geometry geom)

Set the SRID of the given Geometry object to the destination CRS of this CRSTransformer object. The coordinates of the geometry will not be changed.

Parameters:

geom - DOCUMENT ME!

transformPNodeToGivenCrs

public static void transformPNodeToGivenCrs(edu.umd.cs.piccolo.PNode node,
                                            String oldCrs,
                                            String newCrs,
                                            WorldToScreenTransform oldWtst,
                                            WorldToScreenTransform newWtst)

transforms the given PNode object and all its sub nodes to the given CRS.

Parameters:

node - DOCUMENT ME!

oldCrs - DOCUMENT ME!

newCrs - DOCUMENT ME!

oldWtst - DOCUMENT ME!

newWtst - DOCUMENT ME!

extractSridFromCrs

public static int extractSridFromCrs(String crs)

extracts the srid from the given srs. The srs should have the form "EPSG:XXXX"

Parameters:

crs - DOCUMENT ME!

Returns:

the srid or -1 if the srid could not be determined

createCrsFromSrid

public static String createCrsFromSrid(int srid)

creates the crs from the given srid.

Parameters:

srid - crs DOCUMENT ME!

Returns:

the crs

getCurrentSrid

public static int getCurrentSrid()

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Returns:

the current srid

transformToCurrentCrs

public static <T extends com.vividsolutions.jts.geom.Geometry> T transformToCurrentCrs(T geom)

transforms the given geometry to the current CRS.

Type Parameters:

T - DOCUMENT ME!

Parameters:

geom - the geometry to transform

Returns:

the new geomerty or the given geometry, if the given geometry is already in the current CRS

transformToGivenCrs

public static <T extends com.vividsolutions.jts.geom.Geometry> T transformToGivenCrs(T geom,
                                                                                     String crs)

transforms the given geometry to the given CRS.

Type Parameters:

T - DOCUMENT ME!

Parameters:

geom - the geometry to transform

crs - the target crs

Returns:

the new geomerty or the given geometry, if the given geometry is already in the right CRS

transformToDefaultCrs

public static <T extends com.vividsolutions.jts.geom.Geometry> T transformToDefaultCrs(T geom)

transforms the given geometry to the default CRS.

Type Parameters:

T - DOCUMENT ME!

Parameters:

geom - the geometry to transform

Returns:

the new geomerty or the given geometry, if the given geometry is already in the default CRS

transformToMetricCrs

public static <T extends com.vividsolutions.jts.geom.Geometry> T transformToMetricCrs(T geom)

transforms the given geometry to a metric CRS.

Type Parameters:

T - DOCUMENT ME!

Parameters:

geom - the geometry to transform

Returns:

the new geomerty or the given geometry, if the given geometry is already in the current CRS

transformToMetricCrs

public static <T extends com.vividsolutions.jts.geom.Geometry> T transformToMetricCrs(T geom,
                                                                                      List<Crs> crsList)

transforms the given geometry to a metric CRS.

Type Parameters:

T - DOCUMENT ME!

Parameters:

geom - the geometry to transform

crsList - DOCUMENT ME!

Returns:

the new geomerty or the given geometry, if the given geometry is already in the current CRS

isDefaultCrs

public static boolean isDefaultCrs(String crs)

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Parameters:

crs - DOCUMENT ME!

Returns:

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getCrsFactor

public static double getCrsFactor(com.vividsolutions.jts.geom.Point coord)

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Parameters:

coord - DOCUMENT ME!

Returns:

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