root / trunk / libraries / libFMap_geometries / src / org / gvsig / fmap / geom / primitive / Circle2D.java @ 20896
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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 org.gvsig.fmap.geom.primitive; |
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import java.awt.geom.AffineTransform; |
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import java.awt.geom.Arc2D; |
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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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import org.cresques.cts.IProjection; |
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import org.gvsig.fmap.geom.GeometryManager; |
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import org.gvsig.fmap.geom.handler.AbstractHandler; |
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import org.gvsig.fmap.geom.handler.CuadrantHandler; |
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import org.gvsig.fmap.geom.handler.Handler; |
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import org.gvsig.fmap.geom.type.GeometryType; |
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import org.gvsig.fmap.geom.util.UtilFunctions; |
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/**
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* DOCUMENT ME!
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*
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* @author Vicente Caballero Navarro
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*/
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public class Circle2D extends Surface2D implements Surface { |
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private static final long serialVersionUID = 1L; |
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private static GeometryType geomType = GeometryManager.getInstance() |
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.registerGeometryType(Circle2D.class); |
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private Point2D center; |
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private double radio; |
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/**
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* DOCUMENT ME!
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*
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* @param gpx
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*/
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public Circle2D(String id, IProjection projection, GeneralPathX gpx, |
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Point2D c, double r) { |
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super(id, projection, gpx);
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center = c; |
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radio = r; |
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} |
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public Point2D getCenter() { |
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return center;
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} |
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public double getRadio() { |
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return radio;
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} |
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/*
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* (non-Javadoc)
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*
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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 Circle2D(id, projection, (GeneralPathX) gp.clone(), center, |
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radio); |
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} |
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/**
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* @see org.gvsig.fmap.geom.primitive.FShape#getShapeType()
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*/
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public int getShapeType() { |
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return FShape.CIRCLE;
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} |
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/**
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* DOCUMENT ME!
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*
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* @param at
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* DOCUMENT ME!
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*/
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public void transform(AffineTransform at) { |
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Point2D pdist = UtilFunctions.getPerpendicularPoint(new Point2D.Double( |
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center.getX() + 10, center.getY()), new Point2D.Double(center |
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.getX() - 10, center.getY()), center, radio);
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Point2D aux = new Point2D.Double(); |
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at.transform(center, aux); |
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center = aux; |
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Point2D aux3 = new Point2D.Double(); |
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at.transform(pdist, aux3); |
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radio = center.distance(aux3); |
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gp.transform(at); |
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} |
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/**
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* DOCUMENT ME!
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*
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* @return DOCUMENT ME!
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*/
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public Handler[] getStretchingHandlers() { |
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ArrayList handlers = new ArrayList(); |
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Rectangle2D rect = this.getBounds2D(); |
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handlers |
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.add(new CenterHandler(0, rect.getCenterX(), rect.getCenterY())); |
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// handlers.add(new RadioHandler(1, rect.getX(), rect.getCenterY()));
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// handlers.add(new RadioHandler(2, rect.getMaxX(), rect.getCenterY()));
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// handlers.add(new RadioHandler(3, rect.getCenterX(), rect.getY()));
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// handlers.add(new RadioHandler(3, rect.getCenterX(), rect.getMaxY()));
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return (Handler[]) handlers.toArray(new Handler[0]); |
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} |
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public Handler[] getSelectHandlers() { |
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ArrayList handlers = new ArrayList(); |
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handlers.add(new CenterSelHandler(0, center.getX(), center.getY())); |
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handlers.add(new RadioSelHandler(1, center.getX() - radio, center |
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.getY())); |
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handlers.add(new RadioSelHandler(2, center.getX() + radio, center |
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.getY())); |
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handlers.add(new RadioSelHandler(3, center.getX(), center.getY() |
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- radio)); |
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handlers.add(new RadioSelHandler(3, center.getX(), center.getY() |
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+ radio)); |
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return (Handler[]) handlers.toArray(new Handler[0]); |
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} |
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/**
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* DOCUMENT ME!
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*
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* @author Vicente Caballero Navarro
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*/
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class CenterHandler extends AbstractHandler implements Handler { |
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/**
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* Crea un nuevo PointHandler.
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*
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* @param i
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* DOCUMENT ME!
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* @param x
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* DOCUMENT ME!
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* @param y
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* DOCUMENT ME!
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*/
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public CenterHandler(int i, double x, double y) { |
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point = new Point2D.Double(x, y); |
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index = i; |
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} |
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/**
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* DOCUMENT ME!
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*
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* @param x
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* DOCUMENT ME!
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* @param y
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* DOCUMENT ME!
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*
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* @return DOCUMENT ME!
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*/
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public void move(double x, double y) { |
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center = new Point2D.Double(center.getX() + x, center.getY() + y); |
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for (int i = 0; i < gp.numCoords / 2; i++) { |
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gp.pointCoords[i * 2] += x;
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gp.pointCoords[i * 2 + 1] += y; |
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} |
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} |
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/**
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* @see org.gvsig.fmap.geom.handler.Handler#set(double, double)
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*/
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public void set(double x, double y) { |
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} |
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} |
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/**
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* DOCUMENT ME!
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*
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* @author Vicente Caballero Navarro
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*/
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class CenterSelHandler extends AbstractHandler implements Handler { |
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/**
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* Crea un nuevo PointHandler.
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*
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* @param i
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* DOCUMENT ME!
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* @param x
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* DOCUMENT ME!
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* @param y
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* DOCUMENT ME!
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*/
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public CenterSelHandler(int i, double x, double y) { |
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point = new Point2D.Double(x, y); |
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index = i; |
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} |
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/**
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* DOCUMENT ME!
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*
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* @param x
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* DOCUMENT ME!
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* @param y
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* DOCUMENT ME!
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*
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* @return DOCUMENT ME!
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*/
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public void move(double x, double y) { |
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for (int i = 0; i < gp.numCoords / 2; i++) { |
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gp.pointCoords[i * 2] += x;
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gp.pointCoords[i * 2 + 1] += y; |
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} |
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} |
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/**
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* @see org.gvsig.fmap.geom.handler.Handler#set(double, double)
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*/
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public void set(double x, double y) { |
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center = new Point2D.Double(x, y); |
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Arc2D.Double arc = new Arc2D.Double(center.getX() - radio, center |
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.getY() |
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- radio, 2 * radio, 2 * radio, 0, 360, Arc2D.OPEN); |
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gp = new GeneralPathX(arc);
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} |
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} |
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/**
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* DOCUMENT ME!
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*
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* @author Vicente Caballero Navarro
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*/
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class RadioSelHandler extends AbstractHandler implements CuadrantHandler { |
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/**
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* Crea un nuevo PointHandler.
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*
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* @param i
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* DOCUMENT ME!
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* @param x
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* DOCUMENT ME!
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* @param y
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* DOCUMENT ME!
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*/
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public RadioSelHandler(int i, double x, double y) { |
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point = new Point2D.Double(x, y); |
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index = i; |
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} |
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/**
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* DOCUMENT ME!
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*
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* @param x
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* DOCUMENT ME!
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* @param y
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* DOCUMENT ME!
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*
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* @return DOCUMENT ME!
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*/
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public void move(double x, double y) { |
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} |
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/**
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* @see org.gvsig.fmap.geom.handler.Handler#set(double, double)
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*/
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public void set(double x, double y) { |
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radio = center.distance(x, y); |
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Arc2D.Double arc = new Arc2D.Double(center.getX() - radio, center |
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.getY() |
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- radio, 2 * radio, 2 * radio, 0, 360, Arc2D.OPEN); |
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gp = new GeneralPathX(arc);
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} |
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} |
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/*
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* (non-Javadoc)
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*
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* @see com.iver.cit.gvsig.fmap.core.FPolyline2D#intersects(java.awt.geom.Rectangle2D)
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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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} |
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public GeometryType getGeometryType() {
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return geomType;
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} |
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} |