root / trunk / libraries / libFMap / src / com / iver / cit / gvsig / fmap / core / FPolyline2D.java @ 2196
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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; |
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import org.cresques.cts.ICoordTrans; |
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import java.awt.Rectangle; |
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import java.awt.geom.AffineTransform; |
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import java.awt.geom.PathIterator; |
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import java.awt.geom.Line2D; |
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import java.awt.geom.Point2D; |
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import java.awt.geom.Rectangle2D; |
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import java.util.ArrayList; |
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/**
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* DOCUMENT ME!
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*
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* @author Fernando Gonz?lez Cort?s
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*/
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public class FPolyline2D implements FShape { |
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protected GeneralPathX gp;
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/**
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* Crea un nuevo FPolyline2D.
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*
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* @param gpx GeneralPathX.
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*/
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public FPolyline2D(GeneralPathX gpx) {
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gp = gpx; |
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} |
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/* (non-Javadoc)
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* @see java.awt.Shape#contains(double, double)
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*/
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public boolean contains(double x, double y) { |
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return gp.contains(x, y);
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} |
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/* (non-Javadoc)
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* @see java.awt.Shape#contains(double, double, double, double)
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*/
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public boolean contains(double x, double y, double w, double h) { |
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return gp.contains(x, y, w, h);
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} |
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/* (non-Javadoc)
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* @see java.awt.Shape#intersects(double, double, double, double)
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*/
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public boolean intersects(double x, double y, double w, double h) { |
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// M?s r?pido
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return gp.intersects(x, y, w, h);
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} |
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/* (non-Javadoc)
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* @see java.awt.Shape#getBounds()
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*/
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public Rectangle getBounds() { |
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return gp.getBounds();
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} |
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/* (non-Javadoc)
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* @see java.awt.Shape#contains(java.awt.geom.Point2D)
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*/
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public boolean contains(Point2D p) { |
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return gp.contains(p);
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} |
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/* (non-Javadoc)
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* @see java.awt.Shape#getBounds2D()
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*/
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public Rectangle2D getBounds2D() { |
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return gp.getBounds2D();
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} |
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/* (non-Javadoc)
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* @see java.awt.Shape#contains(java.awt.geom.Rectangle2D)
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*/
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public boolean contains(Rectangle2D r) { |
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return gp.contains(r);
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} |
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/**
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* El m?todo intersects de java.awt.Shape que define la intersecci?n entre
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* una polil?nea y un Rectangle2D considera la polil?nea como un Shape
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* gen?rico y se producen errores en la selecci?n de polil?neas. Por este
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* motivo se ha modificado este m?todo intersect() de FPolyline2D para que
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* realize la intersecci?n estricta entre el Rectangle2D y la polil?nea en
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* cuesti?n. El precio es un incremento de tiempo m?ximo del 50%.
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*
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* @param r Rect?ngulo.
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*
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* @return True si intersecta con el rectangulo que se pasa como par?metro.
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*/
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public boolean intersects(Rectangle2D r) { |
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//return gp.intersects(r);
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// M?s exacto
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boolean bool = false; |
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if (gp.intersects(r)) {
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ArrayList arrayCoords;
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int theType;
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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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Point2D p1 = new Point2D.Double(r.getMinX(),r.getMinY()); |
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Point2D p2 = new Point2D.Double(r.getMinX(),r.getMaxY()); |
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Point2D p3 = new Point2D.Double(r.getMaxX(),r.getMaxY()); |
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Point2D p4 = new Point2D.Double(r.getMaxX(),r.getMinY()); |
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Line2D l1 = new Line2D.Double(p1,p2); |
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Line2D l2 = new Line2D.Double(p2,p3); |
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Line2D l3 = new Line2D.Double(p3,p4); |
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Line2D l4 = new Line2D.Double(p4,p1); |
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theIterator = this.getPathIterator(null); |
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arrayCoords = new ArrayList(); |
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while(!theIterator.isDone()) {
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theType = theIterator.currentSegment(theData); |
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if (theType==PathIterator.SEG_MOVETO) { |
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arrayCoords.add(new Point2D.Double(theData[0], theData[1])); |
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} else if (theType==PathIterator.SEG_LINETO) { |
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arrayCoords.add(new Point2D.Double(theData[0], theData[1])); |
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Point2D pAnt = (Point2D)arrayCoords.get(arrayCoords.size()-2); |
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Line2D l = new Line2D.Double(pAnt.getX(),pAnt.getY(),theData[0],theData[1]); |
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if (l.intersectsLine(l1.getX1(),l1.getY1(),l1.getX2(),l1.getY2())
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|| l.intersectsLine(l2.getX1(),l2.getY1(),l2.getX2(),l2.getY2()) |
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|| l.intersectsLine(l3.getX1(),l3.getY1(),l3.getX2(),l3.getY2()) |
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|| l.intersectsLine(l4.getX1(),l4.getY1(),l4.getX2(),l4.getY2()) |
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|| r.intersectsLine(l)) {
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bool = true;
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} |
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} else {
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System.out.println("Not supported here"); |
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} |
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theIterator.next(); |
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} |
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} |
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return bool;
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} |
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/* (non-Javadoc)
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* @see java.awt.Shape#getPathIterator(java.awt.geom.AffineTransform)
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*/
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public PathIterator getPathIterator(AffineTransform at) { |
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return gp.getPathIterator(at);
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} |
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/* (non-Javadoc)
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* @see java.awt.Shape#getPathIterator(java.awt.geom.AffineTransform, double)
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*/
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public PathIterator getPathIterator(AffineTransform at, double flatness) { |
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return gp.getPathIterator(at, flatness);
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} |
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/**
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* DOCUMENT ME!
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*
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* @param at DOCUMENT ME!
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*/
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public void transform(AffineTransform at) { |
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gp.transform(at); |
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} |
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/**
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* @see com.iver.cit.gvsig.fmap.core.FShape#getShapeType()
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*/
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public int getShapeType() { |
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return FShape.LINE;
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} |
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/* (non-Javadoc)
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* @see com.iver.cit.gvsig.fmap.core.FShape#cloneFShape()
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*/
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public FShape cloneFShape() {
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return new FPolyline2D((GeneralPathX) gp.clone()); |
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} |
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/* (non-Javadoc)
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* @see com.iver.cit.gvsig.fmap.core.FShape#reProject(org.cresques.cts.ICoordTrans)
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*/
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public void reProject(ICoordTrans ct) { |
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gp.reProject(ct); |
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} |
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} |