root / trunk / libraries / libFMap / src / com / iver / cit / gvsig / fmap / core / v02 / FConverter.java @ 2354
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/*
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* Created on 08-jun-2004
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*
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* TODO To change the template for this generated file go to
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* Window - Preferences - Java - Code Generation - Code and Comments
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*/
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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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*
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* Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*
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* For more information, contact:
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*
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* Generalitat Valenciana
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* Conselleria d'Infraestructures i Transport
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* Av. Blasco Ib??ez, 50
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* 46010 VALENCIA
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* SPAIN
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*
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* +34 963862235
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* gvsig@gva.es
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* www.gvsig.gva.es
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*
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* or
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*
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* IVER T.I. S.A
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* Salamanca 50
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* 46005 Valencia
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* Spain
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*
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* +34 963163400
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* dac@iver.es
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*/
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package com.iver.cit.gvsig.fmap.core.v02; |
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import com.iver.cit.gvsig.fmap.core.FPoint2D; |
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import com.iver.cit.gvsig.fmap.core.FPolygon2D; |
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import com.iver.cit.gvsig.fmap.core.FPolyline2D; |
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import com.iver.cit.gvsig.fmap.core.FShape; |
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import com.iver.cit.gvsig.fmap.core.GeneralPathX; |
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import com.vividsolutions.jts.algorithm.CGAlgorithms; |
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import com.vividsolutions.jts.algorithm.RobustCGAlgorithms; |
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import com.vividsolutions.jts.geom.Coordinate; |
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import com.vividsolutions.jts.geom.CoordinateArrays; |
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import com.vividsolutions.jts.geom.Envelope; |
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import com.vividsolutions.jts.geom.Geometry; |
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import com.vividsolutions.jts.geom.GeometryCollection; |
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import com.vividsolutions.jts.geom.GeometryFactory; |
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import com.vividsolutions.jts.geom.LineString; |
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import com.vividsolutions.jts.geom.LinearRing; |
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import com.vividsolutions.jts.geom.MultiLineString; |
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import com.vividsolutions.jts.geom.MultiPolygon; |
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import com.vividsolutions.jts.geom.Point; |
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import com.vividsolutions.jts.geom.Polygon; |
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import java.awt.geom.AffineTransform; |
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import java.awt.geom.NoninvertibleTransformException; |
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import java.awt.geom.PathIterator; |
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import java.awt.geom.Point2D; |
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import java.lang.reflect.Array; |
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import java.util.ArrayList; |
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/**
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* Clase con varios m?todos est?ticos utilizados para pasar de java2d a jts y
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* viceversa.
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*
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* @author fjp
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*/
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public class FConverter { |
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/**
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* ?QU? PODEMOS HACER CON LOS MULTIPOINT??? => DEBER?AMOS TRABAJAR CON UN
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* ARRAY DE PUNTOS EN FShape.....Pensarlo bien.
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*/
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private final static GeometryFactory geomFactory = new GeometryFactory(); |
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protected static CGAlgorithms cga = new RobustCGAlgorithms(); |
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private final static AffineTransform at = new AffineTransform(); |
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private static double POINT_MARKER_SIZE = 3.0; |
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private static PointConverter pointConverter = new PointConverter() { |
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/* (non-Javadoc)
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* @see com.iver.cit.opensig.fmap.FConverter.PointConverter#toViewPoint(com.vividsolutions.jts.geom.Coordinate)
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*/
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public Point2D toViewPoint(Coordinate modelCoordinate) |
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throws NoninvertibleTransformException { |
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// TODO Auto-generated method stub
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return null; |
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} |
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}; |
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//returns true if testPoint is a point in the pointList list.
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static boolean pointInList(Coordinate testPoint, Coordinate[] pointList) { |
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int t;
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int numpoints;
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Coordinate p; |
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numpoints = Array.getLength(pointList);
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for (t = 0; t < numpoints; t++) { |
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p = pointList[t]; |
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if ((testPoint.x == p.x) && (testPoint.y == p.y) &&
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((testPoint.z == p.z) || (!(testPoint.z == testPoint.z))) //nan test; x!=x iff x is nan
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) {
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return true; |
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} |
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} |
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return false; |
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} |
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/**
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* Convierte un FShape a una Geometry del JTS. Para ello, utilizamos un
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* "flattened PathIterator". El flattened indica que las curvas las pasa a
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* segmentos de l?nea recta AUTOMATICAMENTE!!!.
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*
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* @param shp FShape que se quiere convertir.
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*
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* @return Geometry de JTS.
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*/
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public static Geometry java2d_to_jts(FShape shp) { |
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double flatness = 0.8; // Por ejemplo. Cuanto m?s peque?o, m?s segmentos necesitar? la curva |
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// Es la m?xima distancia que permitimos que el trazo aproximado
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// difiera del trazo real.
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Geometry geoJTS = null;
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Coordinate coord; |
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Coordinate[] coords;
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ArrayList arrayCoords = null; |
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ArrayList arrayLines;
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LineString lin; |
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LinearRing linRing; |
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LinearRing linRingExt = null;
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int theType;
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int numParts = 0; |
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// Use this array to store segment coordinate data
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double[] theData = new double[6]; |
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PathIterator theIterator;
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switch (shp.getShapeType()) {
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case FShape.POINT:
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case FShape.POINT + FShape.Z:
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FPoint2D p = (FPoint2D) shp; |
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coord = new Coordinate(p.getX(), p.getY());
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geoJTS = new GeometryFactory().createPoint(coord);
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break;
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case FShape.LINE:
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case FShape.LINE + FShape.Z:
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arrayLines = new ArrayList(); |
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theIterator = shp.getPathIterator(null); //, flatness); |
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while (!theIterator.isDone()) {
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//while not done
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theType = theIterator.currentSegment(theData); |
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//Populate a segment of the new
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// GeneralPathX object.
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//Process the current segment to populate a new
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// segment of the new GeneralPathX object.
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switch (theType) {
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case PathIterator.SEG_MOVETO: |
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// System.out.println("SEG_MOVETO");
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if (arrayCoords == null) { |
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arrayCoords = new ArrayList(); |
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} else {
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lin = new GeometryFactory().createLineString(CoordinateArrays.toCoordinateArray(
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arrayCoords)); |
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arrayLines.add(lin); |
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arrayCoords = new ArrayList(); |
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} |
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numParts++; |
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arrayCoords.add(new Coordinate(theData[0], |
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theData[1]));
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break;
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case PathIterator.SEG_LINETO: |
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// System.out.println("SEG_LINETO");
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arrayCoords.add(new Coordinate(theData[0], |
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theData[1]));
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break;
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case PathIterator.SEG_QUADTO: |
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System.out.println("Not supported here"); |
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break;
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case PathIterator.SEG_CUBICTO: |
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System.out.println("Not supported here"); |
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break;
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case PathIterator.SEG_CLOSE: |
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System.out.println("SEG_CLOSE"); |
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// A?adimos el primer punto para cerrar.
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Coordinate firstCoord = (Coordinate) arrayCoords.get(0);
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arrayCoords.add(new Coordinate(firstCoord.x,
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firstCoord.y)); |
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break;
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} //end switch
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theIterator.next(); |
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} //end while loop
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lin = new GeometryFactory().createLineString(CoordinateArrays.toCoordinateArray(
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arrayCoords)); |
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if (numParts > 1) // Generamos una MultiLineString |
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{
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arrayLines.add(lin); |
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geoJTS = new GeometryFactory().createMultiLineString(GeometryFactory.toLineStringArray(
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arrayLines)); |
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} else {
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geoJTS = lin; |
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} |
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break;
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case FShape.POLYGON:
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case FShape.POLYGON + FShape.Z:
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arrayLines = new ArrayList(); |
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ArrayList shells = new ArrayList(); |
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ArrayList holes = new ArrayList(); |
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Coordinate[] points = null; |
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theIterator = shp.getPathIterator(at, flatness); |
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while (!theIterator.isDone()) {
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//while not done
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theType = theIterator.currentSegment(theData); |
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//Populate a segment of the new
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// GeneralPathX object.
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//Process the current segment to populate a new
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// segment of the new GeneralPathX object.
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switch (theType) {
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case PathIterator.SEG_MOVETO: |
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// System.out.println("SEG_MOVETO");
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if (arrayCoords == null) { |
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arrayCoords = new ArrayList(); |
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} else {
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points = CoordinateArrays.toCoordinateArray(arrayCoords); |
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try {
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LinearRing ring = geomFactory.createLinearRing(points); |
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if (CGAlgorithms.isCCW(points)) {
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holes.add(ring); |
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} else {
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shells.add(ring); |
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} |
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} catch (Exception e) { |
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System.err.println(
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"Caught Topology exception in GMLLinearRingHandler");
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return null; |
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} |
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/* if (numParts == 1)
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{
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linRingExt = new GeometryFactory().createLinearRing(
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CoordinateArrays.toCoordinateArray(arrayCoords));
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}
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else
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{
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linRing = new GeometryFactory().createLinearRing(
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CoordinateArrays.toCoordinateArray(arrayCoords));
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arrayLines.add(linRing);
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} */
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arrayCoords = new ArrayList(); |
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} |
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numParts++; |
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arrayCoords.add(new Coordinate(theData[0], |
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theData[1]));
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break;
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case PathIterator.SEG_LINETO: |
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// System.out.println("SEG_LINETO");
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arrayCoords.add(new Coordinate(theData[0], |
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theData[1]));
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break;
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case PathIterator.SEG_QUADTO: |
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System.out.println("SEG_QUADTO Not supported here"); |
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break;
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case PathIterator.SEG_CUBICTO: |
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System.out.println("SEG_CUBICTO Not supported here"); |
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break;
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case PathIterator.SEG_CLOSE: |
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// A?adimos el primer punto para cerrar.
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Coordinate firstCoord = (Coordinate) arrayCoords.get(0);
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arrayCoords.add(new Coordinate(firstCoord.x,
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firstCoord.y)); |
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break;
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} //end switch
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// System.out.println("theData[0] = " + theData[0] + " theData[1]=" + theData[1]);
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theIterator.next(); |
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} //end while loop
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// arrayCoords.add(arrayCoords.get(0));
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points = CoordinateArrays.toCoordinateArray(arrayCoords); |
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try {
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LinearRing ring = geomFactory.createLinearRing(points); |
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if (CGAlgorithms.isCCW(points)) {
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holes.add(ring); |
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} else {
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shells.add(ring); |
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} |
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} catch (Exception e) { |
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System.err.println(
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"Caught Topology exception in GMLLinearRingHandler");
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return null; |
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} |
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/* linRing = new GeometryFactory().createLinearRing(
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CoordinateArrays.toCoordinateArray(arrayCoords)); */
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// System.out.println("NumParts = " + numParts);
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//now we have a list of all shells and all holes
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ArrayList holesForShells = new ArrayList(shells.size()); |
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for (int i = 0; i < shells.size(); i++) { |
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holesForShells.add(new ArrayList()); |
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} |
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//find homes
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for (int i = 0; i < holes.size(); i++) { |
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LinearRing testRing = (LinearRing) holes.get(i); |
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LinearRing minShell = null;
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Envelope minEnv = null;
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Envelope testEnv = testRing.getEnvelopeInternal(); |
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Coordinate testPt = testRing.getCoordinateN(0);
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LinearRing tryRing; |
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for (int j = 0; j < shells.size(); j++) { |
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tryRing = (LinearRing) shells.get(j); |
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Envelope tryEnv = tryRing.getEnvelopeInternal(); |
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if (minShell != null) { |
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minEnv = minShell.getEnvelopeInternal(); |
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} |
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boolean isContained = false; |
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Coordinate[] coordList = tryRing.getCoordinates();
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if (tryEnv.contains(testEnv) &&
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(CGAlgorithms.isPointInRing(testPt, coordList) || |
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(pointInList(testPt, coordList)))) {
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isContained = true;
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} |
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|
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// check if this new containing ring is smaller than the current minimum ring
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if (isContained) {
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if ((minShell == null) || minEnv.contains(tryEnv)) { |
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minShell = tryRing; |
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} |
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} |
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} |
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|
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if (minShell == null) { |
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System.out.println(
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"polygon found with a hole thats not inside a shell");
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} else {
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((ArrayList) holesForShells.get(shells.indexOf(minShell))).add(testRing);
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} |
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} |
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Polygon[] polygons = new Polygon[shells.size()]; |
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for (int i = 0; i < shells.size(); i++) { |
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polygons[i] = geomFactory.createPolygon((LinearRing) shells.get( |
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i), |
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(LinearRing[]) ((ArrayList) holesForShells.get(i)).toArray( |
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new LinearRing[0])); |
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} |
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if (polygons.length == 1) { |
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return polygons[0]; |
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} |
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|
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holesForShells = null;
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shells = null;
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holes = null;
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|
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//its a multi part
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geoJTS = geomFactory.createMultiPolygon(polygons); |
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/* if (numParts > 1) // Generamos un Polygon con agujeros
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{
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arrayLines.add(linRing);
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// geoJTS = new GeometryFactory().createPolygon(linRingExt,
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// GeometryFactory.toLinearRingArray(arrayLines));
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geoJTS = new GeometryFactory().buildGeometry(arrayLines);
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// geoJTS = Polygonizer.class.
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}
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else
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{
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geoJTS = new GeometryFactory().createPolygon(linRing,null);
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} */
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break;
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} |
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return geoJTS;
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} |
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|
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/**
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* Converts JTS Geometry objects into Java 2D Shape objects
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*
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* @param geo Geometry de JTS.
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*
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* @return FShape.
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*/
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public static FShape jts_to_java2d(Geometry geo) { |
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FShape shpNew = null;
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try {
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if (geo instanceof Point) { |
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shpNew = new FPoint2D(((Point) geo).getX(), ((Point) geo).getY()); |
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} |
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|
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if (geo.isEmpty()) {
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shpNew = null;
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} |
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|
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if (geo instanceof Polygon) { |
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shpNew = new FPolygon2D(toShape((Polygon) geo)); |
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} |
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|
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if (geo instanceof MultiPolygon) { |
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shpNew = new FPolygon2D(toShape((MultiPolygon) geo));
|
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} |
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|
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if (geo instanceof LineString) { |
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shpNew = new FPolyline2D(toShape((LineString) geo));
|
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} |
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|
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if (geo instanceof MultiLineString) { |
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shpNew = new FPolyline2D(toShape((MultiLineString) geo));
|
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} |
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|
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/* OJO: CON ALGO COMO FSHAPE NO S? C?MO PODEMOS IMPLEMENTAR UN GeometryCollection
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* No sabremos si queremos una l?nea o un pol?gono.....
|
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* if (geometry instanceof GeometryCollection) {
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return toShape((GeometryCollection) geometry);
|
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} */
|
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return shpNew;
|
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} catch (NoninvertibleTransformException e) { |
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// TODO Auto-generated catch block
|
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e.printStackTrace(); |
| 492 |
} |
| 493 |
|
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return null; |
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} |
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|
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/**
|
| 498 |
* DOCUMENT ME!
|
| 499 |
*
|
| 500 |
* @param p DOCUMENT ME!
|
| 501 |
*
|
| 502 |
* @return DOCUMENT ME!
|
| 503 |
*/
|
| 504 |
private static GeneralPathX toShape(Polygon p) { |
| 505 |
GeneralPathX resul = new GeneralPathX();
|
| 506 |
Coordinate coord; |
| 507 |
|
| 508 |
for (int i = 0; i < p.getExteriorRing().getNumPoints(); i++) { |
| 509 |
coord = p.getExteriorRing().getCoordinateN(i); |
| 510 |
|
| 511 |
if (i == 0) { |
| 512 |
resul.moveTo((float) coord.x, (float) coord.y); |
| 513 |
} else {
|
| 514 |
resul.lineTo((float) coord.x, (float) coord.y); |
| 515 |
} |
| 516 |
} |
| 517 |
|
| 518 |
for (int j = 0; j < p.getNumInteriorRing(); j++) { |
| 519 |
LineString hole = p.getInteriorRingN(j); |
| 520 |
|
| 521 |
for (int k = 0; k < hole.getNumPoints(); k++) { |
| 522 |
coord = hole.getCoordinateN(k); |
| 523 |
|
| 524 |
if (k == 0) { |
| 525 |
resul.moveTo((float) coord.x, (float) coord.y); |
| 526 |
} else {
|
| 527 |
resul.lineTo((float) coord.x, (float) coord.y); |
| 528 |
} |
| 529 |
} |
| 530 |
} |
| 531 |
|
| 532 |
return resul;
|
| 533 |
} |
| 534 |
|
| 535 |
/**
|
| 536 |
* DOCUMENT ME!
|
| 537 |
*
|
| 538 |
* @param modelCoordinates DOCUMENT ME!
|
| 539 |
*
|
| 540 |
* @return DOCUMENT ME!
|
| 541 |
*
|
| 542 |
* @throws NoninvertibleTransformException DOCUMENT ME!
|
| 543 |
*/
|
| 544 |
private Coordinate[] toViewCoordinates(Coordinate[] modelCoordinates) |
| 545 |
throws NoninvertibleTransformException { |
| 546 |
Coordinate[] viewCoordinates = new Coordinate[modelCoordinates.length]; |
| 547 |
|
| 548 |
for (int i = 0; i < modelCoordinates.length; i++) { |
| 549 |
FPoint2D point2D = toViewPoint(modelCoordinates[i]); |
| 550 |
viewCoordinates[i] = new Coordinate(point2D.getX(), point2D.getY());
|
| 551 |
} |
| 552 |
|
| 553 |
return viewCoordinates;
|
| 554 |
} |
| 555 |
|
| 556 |
/* private Shape toShape(GeometryCollection gc)
|
| 557 |
throws NoninvertibleTransformException {
|
| 558 |
GeometryCollectionShape shape = new GeometryCollectionShape();
|
| 559 |
for (int i = 0; i < gc.getNumGeometries(); i++) {
|
| 560 |
Geometry g = (Geometry) gc.getGeometryN(i);
|
| 561 |
shape.add(toShape(g));
|
| 562 |
}
|
| 563 |
return shape;
|
| 564 |
} */
|
| 565 |
private static GeneralPathX toShape(MultiLineString mls) |
| 566 |
throws NoninvertibleTransformException { |
| 567 |
GeneralPathX path = new GeneralPathX();
|
| 568 |
|
| 569 |
for (int i = 0; i < mls.getNumGeometries(); i++) { |
| 570 |
LineString lineString = (LineString) mls.getGeometryN(i); |
| 571 |
path.append(toShape(lineString), false);
|
| 572 |
} |
| 573 |
|
| 574 |
//BasicFeatureRenderer expects LineStrings and MultiLineStrings to be
|
| 575 |
//converted to GeneralPathXs. [Jon Aquino]
|
| 576 |
return path;
|
| 577 |
} |
| 578 |
|
| 579 |
/**
|
| 580 |
* DOCUMENT ME!
|
| 581 |
*
|
| 582 |
* @param lineString DOCUMENT ME!
|
| 583 |
*
|
| 584 |
* @return DOCUMENT ME!
|
| 585 |
*
|
| 586 |
* @throws NoninvertibleTransformException DOCUMENT ME!
|
| 587 |
*/
|
| 588 |
private static GeneralPathX toShape(LineString lineString) |
| 589 |
throws NoninvertibleTransformException { |
| 590 |
GeneralPathX shape = new GeneralPathX();
|
| 591 |
FPoint2D viewPoint = toViewPoint(lineString.getCoordinateN(0));
|
| 592 |
shape.moveTo((float) viewPoint.getX(), (float) viewPoint.getY()); |
| 593 |
|
| 594 |
for (int i = 1; i < lineString.getNumPoints(); i++) { |
| 595 |
viewPoint = toViewPoint(lineString.getCoordinateN(i)); |
| 596 |
shape.lineTo((float) viewPoint.getX(), (float) viewPoint.getY()); |
| 597 |
} |
| 598 |
|
| 599 |
//BasicFeatureRenderer expects LineStrings and MultiLineStrings to be
|
| 600 |
//converted to GeneralPathXs. [Jon Aquino]
|
| 601 |
return shape;
|
| 602 |
} |
| 603 |
|
| 604 |
/**
|
| 605 |
* DOCUMENT ME!
|
| 606 |
*
|
| 607 |
* @param point DOCUMENT ME!
|
| 608 |
*
|
| 609 |
* @return DOCUMENT ME!
|
| 610 |
*
|
| 611 |
* @throws NoninvertibleTransformException DOCUMENT ME!
|
| 612 |
*/
|
| 613 |
private static FPoint2D toShape(Point point) |
| 614 |
throws NoninvertibleTransformException { |
| 615 |
FPoint2D viewPoint = toViewPoint(point.getCoordinate()); |
| 616 |
|
| 617 |
return viewPoint;
|
| 618 |
} |
| 619 |
|
| 620 |
private static GeneralPathX toShape(MultiPolygon mp) |
| 621 |
throws NoninvertibleTransformException { |
| 622 |
GeneralPathX path = new GeneralPathX();
|
| 623 |
|
| 624 |
for (int i = 0; i < mp.getNumGeometries(); i++) { |
| 625 |
Polygon polygon = (Polygon) mp.getGeometryN(i); |
| 626 |
path.append(toShape(polygon), false);
|
| 627 |
} |
| 628 |
|
| 629 |
//BasicFeatureRenderer expects LineStrings and MultiLineStrings to be
|
| 630 |
//converted to GeneralPathXs. [Jon Aquino]
|
| 631 |
return path;
|
| 632 |
} |
| 633 |
/**
|
| 634 |
* DOCUMENT ME!
|
| 635 |
*
|
| 636 |
* @param coord DOCUMENT ME!
|
| 637 |
*
|
| 638 |
* @return DOCUMENT ME!
|
| 639 |
*/
|
| 640 |
private static FPoint2D toViewPoint(Coordinate coord) { |
| 641 |
return new FPoint2D(coord.x, coord.y); //,coord.z); |
| 642 |
} |
| 643 |
|
| 644 |
/**
|
| 645 |
* Convierte una Geometry de JTS a GeneralPathX.
|
| 646 |
*
|
| 647 |
* @param geometry Geometry a convertir.
|
| 648 |
*
|
| 649 |
* @return GeneralPathX.
|
| 650 |
*
|
| 651 |
* @throws NoninvertibleTransformException
|
| 652 |
* @throws IllegalArgumentException
|
| 653 |
*/
|
| 654 |
public static GeneralPathX toShape(Geometry geometry) |
| 655 |
throws NoninvertibleTransformException { |
| 656 |
if (geometry.isEmpty()) {
|
| 657 |
return new GeneralPathX(); |
| 658 |
} |
| 659 |
|
| 660 |
if (geometry instanceof Polygon) { |
| 661 |
return toShape((Polygon) geometry); |
| 662 |
} |
| 663 |
|
| 664 |
if (geometry instanceof MultiPolygon) { |
| 665 |
return toShape((MultiPolygon) geometry);
|
| 666 |
} |
| 667 |
|
| 668 |
if (geometry instanceof LineString) { |
| 669 |
return toShape((LineString) geometry);
|
| 670 |
} |
| 671 |
|
| 672 |
if (geometry instanceof MultiLineString) { |
| 673 |
return toShape((MultiLineString) geometry);
|
| 674 |
} |
| 675 |
|
| 676 |
if (geometry instanceof GeometryCollection) { |
| 677 |
return toShape((GeometryCollection) geometry);
|
| 678 |
} |
| 679 |
|
| 680 |
throw new IllegalArgumentException("Unrecognized Geometry class: " + |
| 681 |
geometry.getClass()); |
| 682 |
} |
| 683 |
|
| 684 |
/**
|
| 685 |
* Interfazaz para convertir una Coordinate de JTS a Point2D.
|
| 686 |
*
|
| 687 |
*/
|
| 688 |
public static interface PointConverter { |
| 689 |
/**
|
| 690 |
* DOCUMENT ME!
|
| 691 |
*
|
| 692 |
* @param modelCoordinate DOCUMENT ME!
|
| 693 |
*
|
| 694 |
* @return DOCUMENT ME!
|
| 695 |
*
|
| 696 |
* @throws NoninvertibleTransformException DOCUMENT ME!
|
| 697 |
*/
|
| 698 |
public Point2D toViewPoint(Coordinate modelCoordinate) |
| 699 |
throws NoninvertibleTransformException; |
| 700 |
} |
| 701 |
} |