org.deegree_impl.model.geometry
Class JTSAdapter

java.lang.Object
  org.deegree_impl.model.geometry.JTSAdapter

public class JTSAdapter

extends java.lang.Object

Adapter between deegree-GM_Objects and JTS-Geometry objects.

Please note that the generated deegree-objects use null as CS_CoordinateSystem!

Version:

$Revision: 1.10 $ $Date: 2004/03/12 15:56:47 $

Author:

Markus Schneider

Field Summary

private static com.vividsolutions.jts.geom.GeometryFactory	jtsFactory
private static PrecisionModel	pm

Constructor Summary

JTSAdapter()

Method Summary

private static GM_Position[]	createGMPositions(LineString line) Converts a LineString to an array of GM_Positions.
private static LineString	export(GM_Curve curve) Converts a GM_Curve to a LineString.
private static MultiLineString	export(GM_MultiCurve multi) Converts a GM_MultiCurve to a MultiLineString.
private static MultiPoint	export(GM_MultiPoint gmMultiPoint) Converts a GM_MultiPoint to a MultiPoint.
private static GeometryCollection	export(GM_MultiPrimitive multi) Converts a GM_MultiPrimitive to a GeometryCollection.
private static MultiPolygon	export(GM_MultiSurface msurface) Converts a GM_MultiSurface to a MultiPolygon.
static Geometry	export(GM_Object gmObject) Converts a GM_Object to a corresponding JTS-Geometry object.
private static Point	export(GM_Point gmPoint) Converts a GM_Point to a Point.
private static LinearRing	export(GM_Position[] positions) Converts an array of GM_Positions to a LinearRing.
private static Polygon	export(GM_Surface surface) Converts a GM_Surface to a Polygon.
static GM_Object	wrap(Geometry geometry) Converts a JTS-Geometry object to a corresponding GM_Object.

Methods inherited from class java.lang.Object

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

Field Detail

pm

private static PrecisionModel pm

jtsFactory

private static com.vividsolutions.jts.geom.GeometryFactory jtsFactory

Constructor Detail

JTSAdapter

public JTSAdapter()

Method Detail

export

public static Geometry export(GM_Object gmObject)
                       throws GM_Exception

Converts a GM_Object to a corresponding JTS-Geometry object.

Currently, the following conversions are supported:

• GM_Point -> Point
• GM_MultiPoint -> MultiPoint
• GM_Curve -> LineString
• GM_MultiCurve -> MultiLineString
• GM_Surface -> Polygon
• GM_MultiSurface -> MultiPolygon
• GM_MultiPrimitive -> GeometryCollection

Parameters:

gmObject - the object to be converted

Returns:

the corresponding JTS-Geometry object

Throws:

GM_Exception - if type unsupported or conversion failed

wrap

public static GM_Object wrap(Geometry geometry)
                      throws GM_Exception

Converts a JTS-Geometry object to a corresponding GM_Object.

Currently, the following conversions are supported:

• Point -> GM_Point
• MultiPoint -> GM_MultiPoint
• LineString -> GM_Curve
• MultiLineString -> GM_MultiCurve
• Polygon -> GM_Surface
• MultiPolygon -> GM_MultiSurface
• GeometryCollection -> GM_MultiPrimitive

Parameters:

geometry - the JTS-Geometry to be converted

Returns:

the corresponding GM_Object

Throws:

GM_Exception - if type unsupported or conversion failed

export

private static Point export(GM_Point gmPoint)

Converts a GM_Point to a Point.

Parameters:

gmPoint - point to be converted

Returns:

the corresponding Point object

export

private static MultiPoint export(GM_MultiPoint gmMultiPoint)

Converts a GM_MultiPoint to a MultiPoint.

Parameters:

gmMultiPoint - multipoint to be converted

Returns:

the corresponding MultiPoint object

export

private static LineString export(GM_Curve curve)
                          throws GM_Exception

Converts a GM_Curve to a LineString.

Parameters:

curve - GM_Curve to be converted

Returns:

the corresponding LineString object

Throws:

GM_Exception

export

private static MultiLineString export(GM_MultiCurve multi)
                               throws GM_Exception

Converts a GM_MultiCurve to a MultiLineString.

Parameters:

multi - GM_MultiCurve to be converted

Returns:

the corresponding MultiLineString object

Throws:

GM_Exception

export

private static LinearRing export(GM_Position[] positions)

Converts an array of GM_Positions to a LinearRing.

Parameters:

positions - an array of GM_Positions

Returns:

the corresponding LinearRing object

export

private static Polygon export(GM_Surface surface)

Converts a GM_Surface to a Polygon.

Currently, the GM_Surface _must_ contain exactly one patch!

Parameters:

surface - a GM_Surface

Returns:

the corresponding Polygon object

export

private static MultiPolygon export(GM_MultiSurface msurface)

Converts a GM_MultiSurface to a MultiPolygon.

Currently, the contained GM_Surface _must_ have exactly one patch!

Parameters:

msurface - a GM_MultiSurface

Returns:

the corresponding MultiPolygon object

export

private static GeometryCollection export(GM_MultiPrimitive multi)
                                  throws GM_Exception

Converts a GM_MultiPrimitive to a GeometryCollection.

Parameters:

multi - a GM_MultiPrimtive

Returns:

the corresponding GeometryCollection object

Throws:

GM_Exception

createGMPositions

private static GM_Position[] createGMPositions(LineString line)

Converts a LineString to an array of GM_Positions.

Parameters:

line - a LineString object

Returns:

the corresponding array of GM_Positions