svn-gvsig-desktop / trunk / extensions / extCAD / src / com / iver / cit / gvsig / gui / cad / tools / SplineCADTool.java @ 10626
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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.gui.cad.tools; |
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import java.awt.Graphics; |
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import java.awt.Graphics2D; |
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import java.awt.event.InputEvent; |
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import java.awt.geom.Point2D; |
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import java.util.ArrayList; |
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import org.apache.log4j.Logger; |
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import com.hardcode.gdbms.driver.exceptions.ReadDriverException; |
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import com.iver.andami.PluginServices; |
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import com.iver.cit.gvsig.fmap.ViewPort; |
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import com.iver.cit.gvsig.fmap.core.FShape; |
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import com.iver.cit.gvsig.fmap.core.IGeometry; |
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import com.iver.cit.gvsig.fmap.core.ShapeFactory; |
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import com.iver.cit.gvsig.gui.cad.CADTool; |
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import com.iver.cit.gvsig.gui.cad.DefaultCADTool; |
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import com.iver.cit.gvsig.gui.cad.exception.CommandException; |
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import com.iver.cit.gvsig.gui.cad.tools.smc.SplineCADToolContext; |
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import com.iver.cit.gvsig.gui.cad.tools.smc.SplineCADToolContext.SplineCADToolState; |
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/**
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* CADTool Spline
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*
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* @author Vicente Caballero Navarro
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*/
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public class SplineCADTool extends DefaultCADTool { |
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private static Logger logger = Logger.getLogger(SplineCADTool.class.getName()); |
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private SplineCADToolContext _fsm;
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private ArrayList list = new ArrayList(); |
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private boolean close=false; |
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/**
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* Crea un nuevo SplineCADTool.
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*/
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public SplineCADTool() {
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} |
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/**
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* M?todo de incio, para poner el c?digo de todo lo que se requiera de una
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* carga previa a la utilizaci?n de la herramienta.
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*/
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public void init() { |
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_fsm = new SplineCADToolContext(this); |
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} |
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public void endGeometry() { |
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try {
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if (getVLE().getVEA().getShapeType()==FShape.POLYGON && !close){
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closeGeometry(); |
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} |
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} catch (ReadDriverException e) {
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e.printStackTrace(); |
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} |
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// No queremos guardar FGeometryCollections:
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IGeometry newGeom = ShapeFactory.createSpline2D((Point2D[])list.toArray(new Point2D[0])); |
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addGeometry(newGeom); |
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_fsm = new SplineCADToolContext(this); |
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list.clear(); |
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close=false;
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} |
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public void closeGeometry(){ |
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close=true;
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Point2D endPoint=new Point2D.Double(((Point2D)list.get(0)).getX(),((Point2D)list.get(0)).getY()); |
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list.add(endPoint); |
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} |
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/* (non-Javadoc)
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* @see com.iver.cit.gvsig.gui.cad.CADTool#transition(com.iver.cit.gvsig.fmap.layers.FBitSet, double, double)
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*/
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public void transition(double x, double y, InputEvent event) { |
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_fsm.addPoint(x, y, event); |
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} |
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/* (non-Javadoc)
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* @see com.iver.cit.gvsig.gui.cad.CADTool#transition(com.iver.cit.gvsig.fmap.layers.FBitSet, double)
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*/
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public void transition(double d) { |
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_fsm.addValue(d); |
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} |
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/* (non-Javadoc)
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* @see com.iver.cit.gvsig.gui.cad.CADTool#transition(com.iver.cit.gvsig.fmap.layers.FBitSet, java.lang.String)
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*/
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public void transition(String s) throws CommandException { |
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if (!super.changeCommand(s)){ |
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_fsm.addOption(s); |
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} |
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} |
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/**
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* Equivale al transition del prototipo pero sin pasarle como par?metro el
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* editableFeatureSource que ya estar? creado.
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*
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* @param sel Bitset con las geometr?as que est?n seleccionadas.
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* @param x par?metro x del punto que se pase en esta transici?n.
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* @param y par?metro y del punto que se pase en esta transici?n.
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*/
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public void addPoint(double x, double y,InputEvent event) { |
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SplineCADToolState actualState = (SplineCADToolState) _fsm.getPreviousState(); |
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String status = actualState.getName();
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if (status.equals("Spline.NextPoint") || status.equals("Spline.FirstPoint")) { |
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list.add(new Point2D.Double(x,y)); |
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} |
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} |
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/**
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* M?todo para dibujar lo necesario para el estado en el que nos
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* encontremos.
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*
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* @param g Graphics sobre el que dibujar.
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* @param selectedGeometries BitSet con las geometr?as seleccionadas.
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* @param x par?metro x del punto que se pase para dibujar.
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* @param y par?metro x del punto que se pase para dibujar.
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*/
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public void drawOperation(Graphics g, double x, |
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double y) {
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SplineCADToolState actualState = _fsm.getState(); |
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String status = actualState.getName();
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if (status.equals("Spline.NextPoint") || status.equals("Spline.FirstPoint")) { |
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ArrayList points=new ArrayList(); |
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points.addAll(list); |
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points.add(new Point2D.Double(x,y)); |
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IGeometry spline=ShapeFactory.createSpline2D((Point2D[])points.toArray(new Point2D[0]).clone()); |
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ViewPort vp=getCadToolAdapter().getMapControl().getViewPort(); |
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spline.draw((Graphics2D)g,vp,CADTool.drawingSymbol);
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} |
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} |
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/**
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* Dibuja el arco sobre el graphics.
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*
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* @param point Puntero del rat?n.
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* @param lastp ?ltimo punto de la polilinea.
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* @param antp Punto antepenultimo.
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* @param g Graphics sobre el que se dibuja.
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*/
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// private void drawSpline(ArrayList ps, double x, double y, Graphics g) {
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// int num=ps.size()+1;
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// ArrayList points=new ArrayList();
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// points.addAll(list);
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// points.add(new Point2D.Double(x,y));
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// double[] px=new double[num];
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// double[] py=new double[num];
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// for (int i=0;i<num;i++) {
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// Point2D p=(Point2D)points.get(i);
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// px[i]=p.getX();
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// py[i]=p.getY();
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//
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// }
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// Spline splineX = new Spline(px);
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// Spline splineY = new Spline(py);
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// double x0 = 0;
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// double y0 = 0;
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// ViewPort vp=getCadToolAdapter().getMapControl().getViewPort();
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// for (int i = 0; i < px.length - 1; i++) {
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// x0 = splineX.fn(i, 0);
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// y0 = splineY.fn(i, 0);
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// Point2D p0=vp.fromMapPoint(x0,y0);
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// g.fillRect((int)p0.getX() - 4, (int)p0.getY() - 4, 8, 8);
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// for (int t = 1; t < 31; t++) {
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// double x1 = splineX.fn(i, ((double) t) / 30.0);
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// double y1 = splineY.fn(i, ((double) t) / 30.0);
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// Point2D p1=vp.fromMapPoint(x1,y1);
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// g.drawLine((int)p0.getX(), (int)p0.getY(), (int)p1.getX(), (int)p1.getY());
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// p0=p1;
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// //x0 = x1;
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// //y0 = y1;
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// }
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// }
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// }
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/**
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* Add a diferent option.
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*
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* @param sel DOCUMENT ME!
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* @param s Diferent option.
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*/
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public void addOption(String s) { |
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} |
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/* (non-Javadoc)
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* @see com.iver.cit.gvsig.gui.cad.CADTool#addvalue(double)
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*/
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public void addValue(double d) { |
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} |
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public void cancel(){ |
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list.clear(); |
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close=false;
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} |
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public void end() { |
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/* CADExtension.setCADTool("Spline");
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PluginServices.getMainFrame().setSelectedTool("Spline"); */
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} |
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public String getName() { |
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return PluginServices.getText(this,"Spline_"); |
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} |
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public String toString() { |
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return "_Spline"; |
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} |
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public boolean isApplicable(int shapeType) { |
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switch (shapeType) {
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case FShape.POINT:
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case FShape.MULTIPOINT:
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return false; |
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} |
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return true; |
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} |
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// private class Spline {
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// private double y[];
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// private double y2[];
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//
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// /**
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// * The constructor calculates the second derivatives of the interpolating function
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// * at the tabulated points xi, with xi = (i, y[i]).
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// * Based on numerical recipes in C, http://www.library.cornell.edu/nr/bookcpdf/c3-3.pdf .
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// * @param y Array of y coordinates for cubic-spline interpolation.
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// */
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// public Spline(double y[]) {
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// this.y = y;
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// int n = y.length;
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// y2 = new double[n];
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// double u[] = new double[n];
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// for (int i = 1; i < n - 1; i++) {
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// y2[i] = -1.0 / (4.0 + y2[i - 1]);
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// u[i] = (6.0 * (y[i + 1] - 2.0 * y[i] + y[i - 1]) - u[i - 1]) / (4.0 + y2[i - 1]);
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// }
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// for (int i = n - 2; i >= 0; i--) {
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// y2[i] = y2[i] * y2[i + 1] + u[i];
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// }
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// }
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//
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// /**
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// * Returns a cubic-spline interpolated value y for the point between
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// * point (n, y[n]) and (n+1, y[n+1), with t ranging from 0 for (n, y[n])
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// * to 1 for (n+1, y[n+1]).
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// * @param n The start point.
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// * @param t The distance to the next point (0..1).
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// * @return A cubic-spline interpolated value.
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// */
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// public double fn(int n, double t) {
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// return t * y[n + 1] - ((t - 1.0) * t * ((t - 2.0) * y2[n] - (t + 1.0) * y2[n + 1])) / 6.0 + y[n] - t * y[n];
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// }
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//
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// }
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} |