root / trunk / libraries / libCq_CMS_praster / src / org / cresques / px / dxf / DxfPoint.java @ 8026
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/*
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* Cresques Mapping Suite. Graphic Library for constructing mapping applications.
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*
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* Copyright (C) 2004-5.
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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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* cresques@gmail.com
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*/
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package org.cresques.px.dxf; |
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import org.cresques.cts.ICoordTrans; |
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import org.cresques.cts.IProjection; |
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import org.cresques.geo.ViewPortData; |
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import org.cresques.io.DxfGroup; |
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import org.cresques.px.Extent; |
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import java.awt.Graphics2D; |
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import java.awt.geom.Point2D; |
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/**
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* Entidad POINT de un fichero DXF.
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* @author "Luis W. Sevilla" <sevilla_lui@gva.es>
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* @author jmorell
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*/
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public class DxfPoint extends DxfEntity { |
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private Point2D pt; |
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/**
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* Constructor de DxfPoint.
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* @param proj, proyecci?n cartogr?fica en la que se encuentra el DxfPoint.
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* @param layer, capa del DXF en la que se encuentra el DxfPoint.
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*/
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public DxfPoint(IProjection proj, DxfLayer layer) {
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super(proj, layer);
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extent = new Extent();
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pt = new Point2D.Double(); |
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} |
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/**
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* Establece el punto de inserci?n del DxfPoint.
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* @param pt, punto de inserci?n.
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*/
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public void setPt(Point2D pt) { |
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this.pt = pt;
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extent.add(pt); |
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} |
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/**
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* Permite reproyectar un DxfPoint dado un conjunto de coordenadas de transformaci?n.
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* @param rp, coordenadas de transformaci?n.
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*/
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public void reProject(ICoordTrans rp) { |
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Point2D savePt = pt;
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pt = new Point2D.Double(); |
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extent = new Extent();
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Point2D ptDest = rp.getPDest().createPoint(0.0, 0.0); |
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if (savePt == null) { |
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ptDest = null;
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} else {
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ptDest = rp.convert((Point2D) savePt, ptDest);
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extent.add(ptDest); |
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} |
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pt = ptDest; |
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setProjection(rp.getPDest()); |
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} |
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/**
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* Permite dibujar un DxfPoint.
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*/
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public void draw(Graphics2D g, ViewPortData vp) { |
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//AffineTransform msave=g.getTransform();
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//g.setTransform(vp.mat);
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if (dxfColor == AcadColor.BYLAYER) {
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g.setColor(layer.getColor()); |
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} else {
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g.setColor(AcadColor.getColor(dxfColor)); |
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} |
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Point2D ptT = new Point2D.Double(0, 0); |
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vp.mat.transform(ptT, ptT); |
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ptT.setLocation(pt.getX(), pt.getY()); |
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vp.mat.transform(ptT, ptT); |
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g.drawLine((int) ptT.getX(), (int) ptT.getY(), (int) ptT.getX(), |
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(int) ptT.getY());
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//g.setTransform(msave);
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} |
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/**
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* Permite la escritura de entidades DxfPoint en un fichero DXF2000.
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* @return String, la cadena que se escribir? en el fichero con la informaci?n
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* del DxfPoint.
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*/
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public String toDxfString() { |
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StringBuffer sb = null; |
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sb = new StringBuffer(DxfGroup.toString(0, "POINT")); |
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sb.append(DxfGroup.toString(5, getHandle()));
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sb.append(DxfGroup.toString(100, "AcDbEntity")); |
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sb.append(DxfGroup.toString(8, layer.getName()));
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sb.append(DxfGroup.toString(62, dxfColor));
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sb.append(DxfGroup.toString(100, "AcDbPoint")); |
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sb.append(DxfGroup.toString(10, pt.getX(), 6)); |
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sb.append(DxfGroup.toString(20, pt.getY(), 6)); |
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sb.append(DxfGroup.toString(30, 0.0, 6)); |
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return sb.toString();
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} |
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/**
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* @return Returns the pt.
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*/
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public Point2D getPt() { |
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return pt;
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} |
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} |