root / branches / v2_0_0_prep / libraries / libFMap_geometries / src / org / gvsig / fmap / geom / primitive / impl / Arc2D.java @ 38786
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/*
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* Created on 09-feb-2005
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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,
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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.impl; |
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import java.awt.geom.AffineTransform; |
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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.Geometry; |
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import org.gvsig.fmap.geom.GeometryLocator; |
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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.CenterHandler; |
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import org.gvsig.fmap.geom.handler.FinalHandler; |
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import org.gvsig.fmap.geom.handler.Handler; |
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import org.gvsig.fmap.geom.primitive.Arc; |
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import org.gvsig.fmap.geom.primitive.FShape; |
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import org.gvsig.fmap.geom.primitive.GeneralPathX; |
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import org.gvsig.fmap.geom.primitive.Point; |
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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 Arc2D extends Curve2D implements Arc { |
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private static final long serialVersionUID = 6416027005106924030L; |
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private Point2D init; |
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/**
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* This is the middle point (belongs to the arc), not the center
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* of the circle/ellipse
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*/
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private Point2D middle; |
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private Point2D end; |
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private static final GeometryManager geomManager = GeometryLocator.getGeometryManager(); |
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/**
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* The constructor with the GeometryType like and argument
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* is used by the {@link GeometryType}{@link #create()}
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* to create the geometry
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* @param type
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* The geometry type
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*/
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public Arc2D(GeometryType geometryType) { |
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super(geometryType);
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} |
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/**
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* Constructor used in the {@link Geometry#cloneGeometry()} method
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* @param id
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* @param projection
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* @param gpx
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* @param i
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* @param c
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* @param e
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*/
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protected Arc2D(GeometryType geometryType, String id, IProjection projection, GeneralPathX gpx, Point2D i,Point2D c, Point2D e) { |
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super(geometryType, id, projection, gpx);
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init=i; |
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middle=c; |
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end=e; |
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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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Arc2D arc = new Arc2D(getGeometryType(), id, projection, (GeneralPathX) gp.clone(),init,middle,end); |
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return arc;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.geom.primitive.impl.OrientablePrimitive2D#transform(java.awt.geom.AffineTransform)
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*/
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public void transform(AffineTransform at) { |
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gp.transform(at); |
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InitHandler inithandler=(InitHandler)getStretchingHandlers()[0];
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//CenterHandler centerhandler=(CenterHandler)getHandlers()[1];
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EndHandler endhandler=(EndHandler)getStretchingHandlers()[1];
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Point2D aux1=new Point2D.Double(); |
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Point2D aux2=new Point2D.Double(); |
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Point2D aux3=new Point2D.Double(); |
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at.transform(inithandler.getPoint(),aux1); |
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inithandler.setPoint(aux1); |
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//at.transform(centerhandler.getPoint(),aux2);
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//centerhandler.setPoint(aux2);
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at.transform(endhandler.getPoint(),aux3); |
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endhandler.setPoint(aux3); |
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CenterSelHandler centerhandler=(CenterSelHandler)getSelectHandlers()[1];
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at.transform(centerhandler.getPoint(),aux2); |
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centerhandler.setPoint(aux2); |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.geom.primitive.impl.Curve2D#getShapeType()
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*/
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public int getShapeType() { |
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return TYPES.ARC;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.geom.primitive.impl.OrientablePrimitive2D#getStretchingHandlers()
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*/
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public Handler[] getStretchingHandlers() { |
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ArrayList handlers = new ArrayList(); |
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handlers.add(new InitHandler(0, init.getX(), init.getY())); |
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//handlers.add(new CenterHandler(1, center.getX(), center.getY()));
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handlers.add(new EndHandler(1, end.getX(), end.getY())); |
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return (Handler[]) handlers.toArray(new Handler[0]); |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.geom.primitive.impl.OrientablePrimitive2D#getSelectHandlers()
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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 InitSelHandler(0, init.getX(), init.getY())); |
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handlers.add(new CenterSelHandler(1, middle.getX(), middle.getY())); |
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handlers.add(new EndSelHandler(2, end.getX(), end.getY())); |
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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 CenterSelHandler extends AbstractHandler implements CenterHandler{ |
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/**
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* Crea un nuevo PointHandler.
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*
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* @param i DOCUMENT ME!
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* @param x DOCUMENT ME!
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* @param y DOCUMENT ME!
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*/
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public CenterSelHandler(int i, double x, double y) { |
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middle = 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 DOCUMENT ME!
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* @param y 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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public void setPoint(Point2D p){ |
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middle=p; |
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} |
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public Point2D getPoint(){ |
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return middle;
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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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middle=new Point2D.Double(x,y); |
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java.awt.geom.Arc2D arco = UtilFunctions.createArc(init, middle, end); |
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gp = new GeneralPathX(arco.getPathIterator(null)); |
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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 InitHandler extends AbstractHandler implements FinalHandler{ |
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/**
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* Crea un nuevo PointHandler.
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*
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* @param i DOCUMENT ME!
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* @param x DOCUMENT ME!
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* @param y DOCUMENT ME!
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*/
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public InitHandler(int i, double x, double y) { |
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init = 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 DOCUMENT ME!
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* @param y 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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Point2D mediop=new Point2D.Double((init.getX()+end.getX())/2,(init.getY()+end.getY())/2); |
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double dist=mediop.distance(middle);
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init=new Point2D.Double(init.getX()+x,init.getY()+y); |
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mediop=new Point2D.Double((init.getX()+end.getX())/2,(init.getY()+end.getY())/2); |
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Point2D[] perp=UtilFunctions.getPerpendicular(init,end,mediop); |
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if (UtilFunctions.getAngle(end,init)<=Math.PI){ |
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dist=-dist; |
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} |
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middle=UtilFunctions.getPoint(mediop,perp[1],dist);
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java.awt.geom.Arc2D arco = UtilFunctions.createArc(init,middle, end); |
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gp=new GeneralPathX(arco.getPathIterator(null)); |
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} |
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public void setPoint(Point2D p){ |
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init=p; |
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} |
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public Point2D getPoint(){ |
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return init;
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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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/**
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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 EndHandler extends AbstractHandler implements FinalHandler{ |
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/**
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* Crea un nuevo PointHandler.
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*
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* @param i DOCUMENT ME!
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* @param x DOCUMENT ME!
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* @param y DOCUMENT ME!
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*/
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public EndHandler(int i, double x, double y) { |
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end = 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 DOCUMENT ME!
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* @param y 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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Point2D mediop=new Point2D.Double((init.getX()+end.getX())/2,(init.getY()+end.getY())/2); |
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double dist=mediop.distance(middle);
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end=new Point2D.Double(end.getX()+x,end.getY()+y); |
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mediop=new Point2D.Double((init.getX()+end.getX())/2,(init.getY()+end.getY())/2); |
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Point2D[] perp=UtilFunctions.getPerpendicular(init,end,mediop); |
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if (UtilFunctions.getAngle(end,init)<=Math.PI){ |
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dist=-dist; |
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} |
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middle=UtilFunctions.getPoint(mediop,perp[1],dist);
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java.awt.geom.Arc2D arco = UtilFunctions.createArc(init,middle, end); |
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gp=new GeneralPathX(arco.getPathIterator(null)); |
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} |
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public void setPoint(Point2D p){ |
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end=p; |
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} |
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public Point2D getPoint(){ |
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return end;
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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 InitSelHandler extends AbstractHandler implements FinalHandler{ |
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/**
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* Crea un nuevo PointHandler.
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*
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* @param i DOCUMENT ME!
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* @param x DOCUMENT ME!
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* @param y DOCUMENT ME!
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*/
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public InitSelHandler(int i, double x, double y) { |
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init = 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 DOCUMENT ME!
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* @param y 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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Point2D mediop=new Point2D.Double((init.getX()+end.getX())/2,(init.getY()+end.getY())/2); |
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double dist=mediop.distance(middle);
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init=new Point2D.Double(init.getX()+x,init.getY()+y); |
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mediop=new Point2D.Double((init.getX()+end.getX())/2,(init.getY()+end.getY())/2); |
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Point2D[] perp=UtilFunctions.getPerpendicular(init,end,mediop); |
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if (UtilFunctions.getAngle(end,init)<=Math.PI){ |
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dist=-dist; |
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} |
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middle=UtilFunctions.getPoint(mediop,perp[1],dist);
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java.awt.geom.Arc2D arco = UtilFunctions.createArc(init,middle, end); |
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gp=new GeneralPathX(arco.getPathIterator(null)); |
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} |
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public void setPoint(Point2D p){ |
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init=p; |
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} |
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public Point2D getPoint(){ |
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return init;
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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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Point2D mediop=new Point2D.Double((init.getX()+end.getX())/2,(init.getY()+end.getY())/2); |
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double dist=mediop.distance(middle);
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init=new Point2D.Double(x,y); |
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mediop=new Point2D.Double((init.getX()+end.getX())/2,(init.getY()+end.getY())/2); |
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// TODO comentado para quitar warning: Point2D[] perp=UtilFunctions.getPerpendicular(init,end,mediop);
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if (UtilFunctions.getAngle(end,init)<=Math.PI){ |
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dist=-dist; |
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} |
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///center=TrigonometricalFunctions.getPoint(mediop,perp[1],dist);
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java.awt.geom.Arc2D arco = UtilFunctions.createArc(init,middle, end); |
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gp=new GeneralPathX(arco.getPathIterator(null)); |
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} |
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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 EndSelHandler extends AbstractHandler implements FinalHandler{ |
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/**
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* Crea un nuevo PointHandler.
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*
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* @param i DOCUMENT ME!
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* @param x DOCUMENT ME!
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* @param y DOCUMENT ME!
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*/
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public EndSelHandler(int i, double x, double y) { |
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end = new Point2D.Double(x, y); |
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index = i; |
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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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* @param x DOCUMENT ME!
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* @param y 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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Point2D mediop=new Point2D.Double((init.getX()+end.getX())/2,(init.getY()+end.getY())/2); |
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double dist=mediop.distance(middle);
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end=new Point2D.Double(end.getX()+x,end.getY()+y); |
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mediop=new Point2D.Double((init.getX()+end.getX())/2,(init.getY()+end.getY())/2); |
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Point2D[] perp=UtilFunctions.getPerpendicular(init,end,mediop); |
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if (UtilFunctions.getAngle(end,init)<=Math.PI){ |
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dist=-dist; |
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} |
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middle=UtilFunctions.getPoint(mediop,perp[1],dist);
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java.awt.geom.Arc2D arco = UtilFunctions.createArc(init,middle, end); |
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gp=new GeneralPathX(arco.getPathIterator(null)); |
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} |
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public void setPoint(Point2D p){ |
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end=p; |
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} |
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public Point2D getPoint(){ |
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return end;
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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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Point2D mediop=new Point2D.Double((init.getX()+end.getX())/2,(init.getY()+end.getY())/2); |
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double dist=mediop.distance(middle);
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end=new Point2D.Double(x,y); |
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mediop=new Point2D.Double((init.getX()+end.getX())/2,(init.getY()+end.getY())/2); |
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// TODO comentado para quitar warning: Point2D[] perp=UtilFunctions.getPerpendicular(init,end,mediop);
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if (UtilFunctions.getAngle(end,init)<=Math.PI){ |
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dist=-dist; |
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} |
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///center=TrigonometricalFunctions.getPoint(mediop,perp[1],dist);
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java.awt.geom.Arc2D arco = UtilFunctions.createArc(init,middle, end); |
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gp=new GeneralPathX(arco.getPathIterator(null)); |
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} |
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} |
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|
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/* (non-Javadoc)
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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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|
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/* (non-Javadoc)
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* @see org.gvsig.fmap.geom.primitive.Arc#setPoints(org.gvsig.fmap.geom.primitive.Point, org.gvsig.fmap.geom.primitive.Point, org.gvsig.fmap.geom.primitive.Point)
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*/
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public void setPoints(Point p1, Point p2, Point p3) { |
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Point2D _p1 = new java.awt.geom.Point2D.Double(p1.getCoordinateAt(0), p1.getCoordinateAt(1)); |
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Point2D _p2 = new java.awt.geom.Point2D.Double(p2.getCoordinateAt(0), p2.getCoordinateAt(1)); |
485 |
Point2D _p3 = new java.awt.geom.Point2D.Double(p3.getCoordinateAt(0), p3.getCoordinateAt(1)); |
486 |
setPoints(_p1, _p2, _p3); |
487 |
} |
488 |
|
489 |
/* (non-Javadoc)
|
490 |
* @see org.gvsig.fmap.geom.primitive.Curve2D#setGeneralPath(org.gvsig.fmap.geom.primitive.GeneralPathX)
|
491 |
*/
|
492 |
public void setGeneralPath(GeneralPathX generalPathX) { |
493 |
throw new UnsupportedOperationException("Use setPoints(Point p1, Point p2, Point p3)"); |
494 |
} |
495 |
|
496 |
/* (non-Javadoc)
|
497 |
* @see org.gvsig.fmap.geom.primitive.Arc#setPoints(java.awt.geom.Point2D, java.awt.geom.Point2D, java.awt.geom.Point2D)
|
498 |
*/
|
499 |
private void setPoints(Point2D p1, Point2D p2, Point2D p3) { |
500 |
java.awt.geom.Arc2D arco = UtilFunctions.createArc(p1, p2, p3); |
501 |
if (arco == null) { |
502 |
throw new IllegalArgumentException(); |
503 |
} |
504 |
this.gp = new GeneralPathX(arco.getPathIterator(null)); |
505 |
this.init = p1;
|
506 |
this.middle = p2;
|
507 |
this.end = p3;
|
508 |
} |
509 |
|
510 |
/* (non-Javadoc)
|
511 |
* @see org.gvsig.fmap.geom.primitive.Arc#setPoints(org.gvsig.fmap.geom.primitive.Point, double, double, double)
|
512 |
*/
|
513 |
public void setPoints(Point center, double radius, double initAngle, |
514 |
double angleExt) {
|
515 |
Point2D _center = new java.awt.geom.Point2D.Double(center.getCoordinateAt(0), center.getCoordinateAt(1)); |
516 |
setPoints(_center, radius, initAngle, angleExt); |
517 |
} |
518 |
|
519 |
/* (non-Javadoc)
|
520 |
* @see org.gvsig.fmap.geom.primitive.Arc#setPointsStartExt(org.gvsig.fmap.geom.primitive.Point, double, double, double)
|
521 |
*/
|
522 |
public void setPointsStartExt(Point center, double radius, |
523 |
double startAngle, double angleExt) { |
524 |
|
525 |
setPoints(center, radius, startAngle, angleExt); |
526 |
} |
527 |
|
528 |
/* (non-Javadoc)
|
529 |
* @see org.gvsig.fmap.geom.primitive.Arc#setPointsStartEnd(org.gvsig.fmap.geom.primitive.Point, double, double, double)
|
530 |
*/
|
531 |
public void setPointsStartEnd(Point center, double radius, |
532 |
double startAngle, double endAngle) { |
533 |
|
534 |
if (startAngle == endAngle) {
|
535 |
setPointsStartExt(center, radius, startAngle, 0);
|
536 |
} else {
|
537 |
|
538 |
/*
|
539 |
* Normalize then force clockwise:
|
540 |
*/
|
541 |
double norm_start = normalizeAngle(startAngle);
|
542 |
double norm_end = normalizeAngle(endAngle);
|
543 |
double ang_ext = 0; |
544 |
|
545 |
// clockwise
|
546 |
// ang_ext must be positive
|
547 |
if (norm_start >= norm_end) {
|
548 |
ang_ext = norm_start - norm_end; |
549 |
} else {
|
550 |
ang_ext = 2 * Math.PI - (norm_end - norm_start); |
551 |
} |
552 |
|
553 |
// finally call other method with ang_ext
|
554 |
setPointsStartExt(center, radius, startAngle, ang_ext); |
555 |
} |
556 |
} |
557 |
|
558 |
/**
|
559 |
* Leaves the angle between PI and -PI
|
560 |
* @param angle (radians)
|
561 |
* @return
|
562 |
*/
|
563 |
private double normalizeAngle(double angle) { |
564 |
|
565 |
if (angle > -Math.PI && angle <= Math.PI) { |
566 |
return angle;
|
567 |
} |
568 |
|
569 |
if (angle == Double.NEGATIVE_INFINITY |
570 |
|| angle == Double.POSITIVE_INFINITY) {
|
571 |
return 0; |
572 |
} |
573 |
|
574 |
double abs_ang = Math.abs(angle); |
575 |
double remove = Math.floor(abs_ang / (2 * Math.PI)); |
576 |
remove = remove * 2 * Math.PI; |
577 |
double resp = 0; |
578 |
|
579 |
if (angle > 0) { |
580 |
resp = angle - remove; |
581 |
if (resp > Math.PI) { |
582 |
// final adjustment
|
583 |
resp = resp - 2 * Math.PI; |
584 |
} |
585 |
} else {
|
586 |
resp = angle + remove; |
587 |
if (resp <= -Math.PI) { |
588 |
// final adjustment
|
589 |
resp = resp + 2 * Math.PI; |
590 |
} |
591 |
} |
592 |
|
593 |
return resp;
|
594 |
} |
595 |
|
596 |
/* (non-Javadoc)
|
597 |
* @see org.gvsig.fmap.geom.primitive.Arc#setPoints(java.awt.geom.Point2D, double, double, double)
|
598 |
*/
|
599 |
private void setPoints(Point2D center, double radius, double initAngle, |
600 |
double angleExt) {
|
601 |
java.awt.geom.Arc2D arco = UtilFunctions.createArc(center, radius, initAngle, angleExt); |
602 |
|
603 |
java.awt.geom.Arc2D semiarco = UtilFunctions.createArc(center, radius, initAngle, angleExt/2);
|
604 |
if (arco == null || semiarco == null) { |
605 |
return;
|
606 |
} |
607 |
|
608 |
Point2D p1 = arco.getStartPoint();
|
609 |
Point2D p2 = semiarco.getEndPoint();
|
610 |
Point2D p3 = arco.getEndPoint();
|
611 |
|
612 |
setPoints(p1, p2, p3); |
613 |
} |
614 |
|
615 |
|
616 |
|
617 |
/* (non-Javadoc)
|
618 |
* @see org.gvsig.fmap.geom.primitive.Curve2D#setPoints(org.gvsig.fmap.geom.primitive.Point, org.gvsig.fmap.geom.primitive.Point)
|
619 |
*/
|
620 |
public void setPoints(Point startPoint, Point endPoint) { |
621 |
throw new UnsupportedOperationException("Use setGeneralPathX"); |
622 |
} |
623 |
|
624 |
/* (non-Javadoc)
|
625 |
* @see org.gvsig.fmap.geom.primitive.Arc#getEndPoint()
|
626 |
*/
|
627 |
public Point getEndPoint() { |
628 |
return new org.gvsig.fmap.geom.primitive.impl.Point2D(end.getX(), end.getY()); |
629 |
} |
630 |
|
631 |
/* (non-Javadoc)
|
632 |
* @see org.gvsig.fmap.geom.primitive.Arc#getInitPoint()
|
633 |
*/
|
634 |
public Point getInitPoint() { |
635 |
return new org.gvsig.fmap.geom.primitive.impl.Point2D(init.getX(), init.getY()); |
636 |
} |
637 |
|
638 |
/* (non-Javadoc)
|
639 |
* @see org.gvsig.fmap.geom.primitive.Arc#getCenterPoint()
|
640 |
*/
|
641 |
public Point getCenterPoint() { |
642 |
Point2D p = UtilFunctions.getCenter(init, middle,end);
|
643 |
try {
|
644 |
return new org.gvsig.fmap.geom.primitive.impl.Point2D(p.getX(), p.getY()); |
645 |
} catch (Exception e) { |
646 |
return null; |
647 |
} |
648 |
} |
649 |
|
650 |
|
651 |
|
652 |
|
653 |
} |