org.gvsig.fmap.geom.jts.util

Class JTSUtils

java.lang.Object

org.gvsig.fmap.geom.jts.util.JTSUtils

public class JTSUtils
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field and Description
static Logger	logger

Constructor Summary

Constructors

Constructor and Description
JTSUtils()

Method Summary

Modifier and Type	Method and Description
static int	calculateQuadrantSegments(int joinStyle)
static com.vividsolutions.jts.geom.Geometry	convertTypes(com.vividsolutions.jts.geom.Geometry g, int sourceType, int destinationType) This function is called when the we need force types, that is the destination type does not match with the input geometry type
static Geometry	createGeometry(IProjection proj, com.vividsolutions.jts.geom.Geometry jtsGeom)
static Geometry	createGeometry(IProjection proj, com.vividsolutions.jts.geom.Geometry jtsGeom, GeometryType typeWhenEmpty)
static LinearRing	createJTSLinearRing(IProjection proj, Coordinate[] coordinates)
static LinearRing	createJTSLinearRing(IProjection proj, CoordinateSequence coordinates)
static LineString	createJTSLineString(IProjection proj, CoordinateSequence coordinates)
static LineString	createJTSLineStringFromArcPoints(IProjection proj, Point centre, double radius, double startAngle, double endAngle)
static MultiLineString	createJTSMultiLineString(IProjection proj, LineString[] lineStrings)
static MultiPoint	createJTSMultiPoint(IProjection proj, CoordinateSequence coordinates)
static com.vividsolutions.jts.geom.MultiPolygon	createJTSMultiPolygon(IProjection proj, com.vividsolutions.jts.geom.Polygon[] polygons)
static com.vividsolutions.jts.geom.Geometry	createJTSPoint(IProjection proj, Coordinate coordinate)
static com.vividsolutions.jts.geom.Polygon	createJTSPolygon(IProjection proj, ArrayListCoordinateSequence coordinates)
static com.vividsolutions.jts.geom.Polygon	createJTSPolygon(IProjection proj, ArrayListCoordinateSequence coordinates, java.util.List<Ring> interiorRings)
static com.vividsolutions.jts.geom.Geometry	createJTSPolygon(IProjection proj, Coordinate[] coordinates)
static MCoordinate	createMCoordinate(double x, double y, double m)
static MCoordinate	createMCoordinate(double x, double y, double z, double m)
static Point	createPoint(GeometryType type, IProjection proj, Coordinate coordinate)
static Point	extractPointFromLine(GeometryJTS geom, double len)
static BufferParameters	getBufferParameters()
static BufferParameters	getBufferParameters(int joinStyle, int endCapStyle)
static Coordinate	getCircumcentre(Point init, Point middle, Point end)
static com.vividsolutions.jts.geom.GeometryFactory	getFactory(Coordinate coordinate)
static com.vividsolutions.jts.geom.GeometryFactory	getFactory(Coordinate[] coordinates)
static com.vividsolutions.jts.geom.GeometryFactory	getFactory(CoordinateSequence coordinates)
static Coordinate	getMidPoint(Point init, Point end) Returns the middle point between two points.
static double	getPathLengthFromLine(GeometryJTS geom, Point point)
static Coordinate	getPointAtYAxisInEllipse(Point init, Point end, java.lang.Double ydist) Returns the intersection point between an ellipse and her minor axis.
protected static Geometry	jtsPolygonToJtsMultiLineString(com.vividsolutions.jts.geom.Geometry geomJTS, IProjection proj)
static Geometry	offsetClosedLine(IProjection proj, ArrayListCoordinateSequence coordinates, double distance) Creates a offset from a closed line at a distance
static Geometry	offsetClosedLine(IProjection proj, ArrayListCoordinateSequence coordinates, int joinStyle, double distance) Creates a offset from a closed line at a distance
static Geometry	offsetRawOpenLine(IProjection proj, ArrayListCoordinateSequence coordinates, double distance) Creates a raw offset of a open line at a distance.
static com.vividsolutions.jts.geom.Geometry	setSRID(IProjection proj, com.vividsolutions.jts.geom.Geometry g)
static double	straightLineThroughTwoPointsEquation(double x1, double x2, double y1, double y2, double x)

Methods inherited from class java.lang.Object

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

Field Detail

logger

public static final Logger logger

Constructor Detail

JTSUtils

public JTSUtils()

Method Detail

createPoint

public static Point createPoint(GeometryType type,
                                IProjection proj,
                                Coordinate coordinate)
                         throws CreateGeometryException

Throws:

CreateGeometryException

getFactory

public static com.vividsolutions.jts.geom.GeometryFactory getFactory(CoordinateSequence coordinates)

getFactory

public static com.vividsolutions.jts.geom.GeometryFactory getFactory(Coordinate coordinate)

getFactory

public static com.vividsolutions.jts.geom.GeometryFactory getFactory(Coordinate[] coordinates)

createJTSLineString

public static LineString createJTSLineString(IProjection proj,
                                             CoordinateSequence coordinates)

createJTSLinearRing

public static LinearRing createJTSLinearRing(IProjection proj,
                                             CoordinateSequence coordinates)

createJTSLinearRing

public static LinearRing createJTSLinearRing(IProjection proj,
                                             Coordinate[] coordinates)

createJTSMultiPoint

public static MultiPoint createJTSMultiPoint(IProjection proj,
                                             CoordinateSequence coordinates)

createGeometry

public static Geometry createGeometry(IProjection proj,
                                      com.vividsolutions.jts.geom.Geometry jtsGeom)

createGeometry

public static Geometry createGeometry(IProjection proj,
                                      com.vividsolutions.jts.geom.Geometry jtsGeom,
                                      GeometryType typeWhenEmpty)

convertTypes

public static com.vividsolutions.jts.geom.Geometry convertTypes(com.vividsolutions.jts.geom.Geometry g,
                                                                int sourceType,
                                                                int destinationType)

This function is called when the we need force types, that is the destination type does not match with the input geometry type

Parameters:

g -

sourceType -

destinationType -

Returns:

createMCoordinate

public static MCoordinate createMCoordinate(double x,
                                            double y,
                                            double m)

createMCoordinate

public static MCoordinate createMCoordinate(double x,
                                            double y,
                                            double z,
                                            double m)

getCircumcentre

public static Coordinate getCircumcentre(Point init,
                                         Point middle,
                                         Point end)

Parameters:

init -

middle -

end -

Returns:

createJTSLineStringFromArcPoints

public static LineString createJTSLineStringFromArcPoints(IProjection proj,
                                                          Point centre,
                                                          double radius,
                                                          double startAngle,
                                                          double endAngle)

createJTSMultiLineString

public static MultiLineString createJTSMultiLineString(IProjection proj,
                                                       LineString[] lineStrings)

createJTSPolygon

public static com.vividsolutions.jts.geom.Polygon createJTSPolygon(IProjection proj,
                                                                   ArrayListCoordinateSequence coordinates,
                                                                   java.util.List<Ring> interiorRings)

Parameters:

coordinates -

interiorRings -

Returns:

createJTSPolygon

public static com.vividsolutions.jts.geom.Polygon createJTSPolygon(IProjection proj,
                                                                   ArrayListCoordinateSequence coordinates)

Parameters:

coordinates -

Returns:

createJTSMultiPolygon

public static com.vividsolutions.jts.geom.MultiPolygon createJTSMultiPolygon(IProjection proj,
                                                                             com.vividsolutions.jts.geom.Polygon[] polygons)

setSRID

public static com.vividsolutions.jts.geom.Geometry setSRID(IProjection proj,
                                                           com.vividsolutions.jts.geom.Geometry g)

getPointAtYAxisInEllipse

public static Coordinate getPointAtYAxisInEllipse(Point init,
                                                  Point end,
                                                  java.lang.Double ydist)

Returns the intersection point between an ellipse and her minor axis.

Parameters:

init -

end -

ydist -

Returns:

getMidPoint

public static Coordinate getMidPoint(Point init,
                                     Point end)

Returns the middle point between two points.

Parameters:

init -

end -

Returns:

createJTSPoint

public static com.vividsolutions.jts.geom.Geometry createJTSPoint(IProjection proj,
                                                                  Coordinate coordinate)

Parameters:

coordinate -

Returns:

createJTSPolygon

public static com.vividsolutions.jts.geom.Geometry createJTSPolygon(IProjection proj,
                                                                    Coordinate[] coordinates)

Parameters:

coordinates -

Returns:

getBufferParameters

public static BufferParameters getBufferParameters()

getBufferParameters

public static BufferParameters getBufferParameters(int joinStyle,
                                                   int endCapStyle)

calculateQuadrantSegments

public static int calculateQuadrantSegments(int joinStyle)
                                     throws java.lang.IllegalArgumentException

Throws:

java.lang.IllegalArgumentException

offsetClosedLine

public static Geometry offsetClosedLine(IProjection proj,
                                        ArrayListCoordinateSequence coordinates,
                                        double distance)

Creates a offset from a closed line at a distance

Parameters:

proj -

coordinates -

distance -

Returns:

offsetClosedLine

public static Geometry offsetClosedLine(IProjection proj,
                                        ArrayListCoordinateSequence coordinates,
                                        int joinStyle,
                                        double distance)

Creates a offset from a closed line at a distance

Parameters:

proj -

coordinates -

joinStyle -

distance -

Returns:

jtsPolygonToJtsMultiLineString

protected static Geometry jtsPolygonToJtsMultiLineString(com.vividsolutions.jts.geom.Geometry geomJTS,
                                                         IProjection proj)

offsetRawOpenLine

public static Geometry offsetRawOpenLine(IProjection proj,
                                         ArrayListCoordinateSequence coordinates,
                                         double distance)

Creates a raw offset of a open line at a distance.

Parameters:

coordinates -

distance -

Returns:

straightLineThroughTwoPointsEquation

public static double straightLineThroughTwoPointsEquation(double x1,
                                                          double x2,
                                                          double y1,
                                                          double y2,
                                                          double x)

extractPointFromLine

public static Point extractPointFromLine(GeometryJTS geom,
                                         double len)

getPathLengthFromLine

public static double getPathLengthFromLine(GeometryJTS geom,
                                           Point point)