svn-gvsig-desktop / trunk / libraries / libDwg / src / com / iver / cit / jdwglib / dwg / objects / DwgLwPolyline.java @ 9830
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/* jdwglib. Java Library for reading Dwg files.
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*
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* Author: Jose Morell Rama (jose.morell@gmail.com).
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* Port from the Pythoncad Dwg library by Art Haas.
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*
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* Copyright (C) 2005 Jose Morell, IVER TI S.A. 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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* Jose Morell (jose.morell@gmail.com)
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*
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* or
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*
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* IVER TI S.A.
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* C/Salamanca, 50
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* 46005 Valencia
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* Spain
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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.jdwglib.dwg.objects; |
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import java.awt.geom.Point2D; |
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import java.util.ArrayList; |
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import java.util.List; |
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import com.iver.cit.gvsig.fmap.core.FPolyline2D; |
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import com.iver.cit.gvsig.fmap.core.FShape; |
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import com.iver.cit.jdwglib.dwg.DwgObject; |
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import com.iver.cit.jdwglib.dwg.DwgUtil; |
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import com.iver.cit.jdwglib.dwg.IDwg2FMap; |
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import com.iver.cit.jdwglib.dwg.IDwg3DTestable; |
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import com.iver.cit.jdwglib.dwg.IDwgExtrusionable; |
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import com.iver.cit.jdwglib.dwg.IDwgPolyline; |
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import com.iver.cit.jdwglib.util.AcadExtrusionCalculator; |
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import com.iver.cit.jdwglib.util.FMapUtil; |
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import com.iver.cit.jdwglib.util.GisModelCurveCalculator; |
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/**
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* The DwgLwPolyline class represents a DWG LwPolyline
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*
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* @author jmorell
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*/
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public class DwgLwPolyline extends DwgObject |
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implements IDwgPolyline, IDwgExtrusionable,
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IDwg3DTestable, IDwg2FMap{
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public DwgLwPolyline(int index) { |
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super(index);
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// TODO Auto-generated constructor stub
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} |
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private int flag; |
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private double constWidth; |
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private double elevation; |
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private double thickness; |
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private double[] normal; |
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private Point2D[] vertices; |
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private double[] bulges; |
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private double[][] widths; |
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/**
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* Read a LwPolyline in the DWG format Version 15
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*
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* @param data Array of unsigned bytes obtained from the DWG binary file
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* @param offset The current bit offset where the value begins
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* @throws Exception If an unexpected bit value is found in the DWG file. Occurs
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* when we are looking for LwPolylines.
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*/
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public void readDwgLwPolylineV15(int[] data, int offset) throws Exception { |
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//System.out.println("DwgLwPolyline.readDwgLwPolyline() executed ...");
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int bitPos = offset;
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bitPos = readObjectHeaderV15(data, bitPos); |
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ArrayList v = DwgUtil.getBitShort(data, bitPos);
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bitPos = ((Integer)v.get(0)).intValue(); |
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int flag = ((Integer)v.get(1)).intValue(); |
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this.flag = flag;
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// Condici?n emp?rica. Si flag es menor que cero no se trata de LwPolylines ...
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if (flag>=0) { |
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double constWidth = 0.0; |
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if ((flag & 0x4)>0) { |
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v = DwgUtil.getBitDouble(data, bitPos); |
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bitPos = ((Integer)v.get(0)).intValue(); |
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constWidth = ((Double)v.get(1)).doubleValue(); |
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} |
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this.constWidth = constWidth;
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double elev = 0.0; |
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if ((flag & 0x8)>0) { |
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v = DwgUtil.getBitDouble(data, bitPos); |
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bitPos = ((Integer)v.get(0)).intValue(); |
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elev = ((Double)v.get(1)).doubleValue(); |
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} |
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elevation = elev; |
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double thickness = 0.0; |
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if ((flag & 0x2)>0) { |
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v = DwgUtil.getBitDouble(data, bitPos); |
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bitPos = ((Integer)v.get(0)).intValue(); |
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thickness = ((Double)v.get(1)).doubleValue(); |
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} |
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this.thickness = thickness;
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double nx = 0.0, ny = 0.0, nz = 0.0; |
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if ((flag & 0x1)>0) { |
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v = DwgUtil.getBitDouble(data, bitPos); |
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bitPos = ((Integer)v.get(0)).intValue(); |
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nx = ((Double)v.get(1)).doubleValue(); |
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v = DwgUtil.getBitDouble(data, bitPos); |
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bitPos = ((Integer)v.get(0)).intValue(); |
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ny = ((Double)v.get(1)).doubleValue(); |
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v = DwgUtil.getBitDouble(data, bitPos); |
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bitPos = ((Integer)v.get(0)).intValue(); |
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nz = ((Double)v.get(1)).doubleValue(); |
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} |
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normal = new double[]{nx, ny, nz}; |
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v = DwgUtil.getBitLong(data, bitPos); |
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bitPos = ((Integer)v.get(0)).intValue(); |
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int np = ((Integer)v.get(1)).intValue(); |
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// TODO: Condici?n emp?rica. Si hay m?s de 10000 puntos no se trata de LwPolylines.
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// Este tema hay que revisarlo porque si pueden existir LwPolylines con m?s de
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// 10000 v?rtices ...
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// Se han encontrado lwplines con np = 0. Estas lwplines tambi?n ser?n
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// ignoradas.
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if (np>0 && np<10000) { |
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long nb = 0; |
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if ((flag & 0x10)>0) { |
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v = DwgUtil.getBitLong(data, bitPos); |
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bitPos = ((Integer)v.get(0)).intValue(); |
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nb = ((Integer)v.get(1)).intValue(); |
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} |
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long nw = 0; |
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if ((flag & 0x20)>0) { |
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v = DwgUtil.getBitLong(data, bitPos); |
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bitPos = ((Integer)v.get(0)).intValue(); |
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nw = ((Integer)v.get(1)).intValue(); |
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} |
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//System.out.println("np = " + np);
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Point2D[] vertices = new Point2D[np]; |
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v = DwgUtil.getRawDouble(data, bitPos); |
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bitPos = ((Integer)v.get(0)).intValue(); |
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double vx = ((Double)v.get(1)).doubleValue(); |
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v = DwgUtil.getRawDouble(data, bitPos); |
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bitPos = ((Integer)v.get(0)).intValue(); |
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double vy = ((Double)v.get(1)).doubleValue(); |
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vertices[0] = new Point2D.Double(vx, vy); |
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for (int i=1; i<(np); i++) { |
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v = DwgUtil.getDefaultDouble(data, bitPos, vx); |
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bitPos = ((Integer)v.get(0)).intValue(); |
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double x = ((Double)v.get(1)).doubleValue(); |
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v = DwgUtil.getDefaultDouble(data, bitPos, vy); |
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bitPos = ((Integer)v.get(0)).intValue(); |
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double y = ((Double)v.get(1)).doubleValue(); |
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vertices[i] = new Point2D.Double(x, y); |
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vx = x; |
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vy = y; |
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} |
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this.vertices = vertices;
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double[] bulges = new double[0]; |
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if (nb>0) { |
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bulges = new double[(int)nb]; |
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for (int i=0; i<nb; i++) { |
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v = DwgUtil.getRawDouble(data, bitPos); |
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bitPos = ((Integer)v.get(0)).intValue(); |
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double bulge = ((Double)v.get(1)).doubleValue(); |
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bulges[i] = bulge; |
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} |
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} else if (nb==0) { |
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bulges = new double[(int)np]; |
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for (int i=0;i<(int)np; i++) { |
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bulges[i] = 0;
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} |
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} |
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this.bulges = bulges;
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if (nw>0) { |
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double[][] widths = new double[(int)nw][2]; |
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for (int i=0; i<nw; i++) { |
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v = DwgUtil.getBitDouble(data, bitPos); |
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bitPos = ((Integer)v.get(0)).intValue(); |
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double sw = ((Double)v.get(1)).doubleValue(); |
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v = DwgUtil.getBitDouble(data, bitPos); |
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bitPos = ((Integer)v.get(0)).intValue(); |
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double ew = ((Double)v.get(1)).doubleValue(); |
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widths[i][0] = sw;
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widths[i][1] = ew;
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} |
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this.widths = widths;
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} |
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bitPos = readObjectTailV15(data, bitPos); |
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} |
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} |
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} |
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/**
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* @return Returns the bulges.
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*/
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public double[] getBulges() { |
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return bulges;
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} |
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/**
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* @param bulges The bulges to set.
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*/
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public void setBulges(double[] bulges) { |
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this.bulges = bulges;
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} |
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/**
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* @return Returns the flag.
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*/
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public int getFlag() { |
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return flag;
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} |
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/**
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* @param flag The flag to set.
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*/
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public void setFlag(int flag) { |
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this.flag = flag;
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} |
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/**
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* @return Returns the vertices.
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*/
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public Point2D[] getVertices() { |
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return vertices;
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} |
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/**
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* @param vertices The vertices to set.
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*/
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public void setVertices(Point2D[] vertices) { |
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this.vertices = vertices;
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} |
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/**
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* @return Returns the elevation.
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*/
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public double getElevation() { |
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return elevation;
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} |
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/**
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* @param elevation The elevation to set.
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*/
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public void setElevation(double elevation) { |
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this.elevation = elevation;
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} |
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/**
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* @return Returns the normal.
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*/
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public double[] getNormal() { |
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return normal;
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} |
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/* (non-Javadoc)
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* @see java.lang.Object#clone()
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*/
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public Object clone() { |
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DwgLwPolyline dwgLwPolyline = new DwgLwPolyline(index);
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dwgLwPolyline.setType(type); |
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dwgLwPolyline.setHandle(handle); |
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dwgLwPolyline.setVersion(version); |
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dwgLwPolyline.setMode(mode); |
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dwgLwPolyline.setLayerHandle(layerHandle); |
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dwgLwPolyline.setColor(color); |
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dwgLwPolyline.setNumReactors(numReactors); |
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dwgLwPolyline.setNoLinks(noLinks); |
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dwgLwPolyline.setLinetypeFlags(linetypeFlags); |
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dwgLwPolyline.setPlotstyleFlags(plotstyleFlags); |
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dwgLwPolyline.setSizeInBits(sizeInBits); |
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dwgLwPolyline.setExtendedData(extendedData); |
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dwgLwPolyline.setGraphicData(graphicData); |
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//dwgLwPolyline.setInsideBlock(insideBlock);
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dwgLwPolyline.setFlag(flag); |
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dwgLwPolyline.setElevation(elevation); |
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dwgLwPolyline.setConstWidth(constWidth); |
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dwgLwPolyline.setThickness(thickness); |
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dwgLwPolyline.setNormal(normal); |
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dwgLwPolyline.setVertices(vertices); |
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dwgLwPolyline.setBulges(bulges); |
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dwgLwPolyline.setWidths(widths); |
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return dwgLwPolyline;
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} |
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/**
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* @return Returns the constWidth.
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*/
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public double getConstWidth() { |
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return constWidth;
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} |
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/**
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* @param constWidth The constWidth to set.
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*/
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public void setConstWidth(double constWidth) { |
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this.constWidth = constWidth;
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} |
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/**
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* @return Returns the thickness.
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*/
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public double getThickness() { |
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return thickness;
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} |
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/**
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* @param thickness The thickness to set.
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*/
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public void setThickness(double thickness) { |
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this.thickness = thickness;
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} |
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/**
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* @return Returns the widths.
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*/
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public double[][] getWidths() { |
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return widths;
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} |
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/**
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* @param widths The widths to set.
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*/
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public void setWidths(double[][] widths) { |
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this.widths = widths;
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} |
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/**
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* @param normal The normal to set.
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*/
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public void setNormal(double[] normal) { |
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this.normal = normal;
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} |
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/* (non-Javadoc)
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* @see com.iver.cit.jdwglib.dwg.IDwgPolyline#calculateGisModel(java.util.List)
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*/
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public void calculateGisModel(List dwgObjs) { |
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if (getVertices() == null) |
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return;
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int flags = getFlag();
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Point2D[] pts = getVertices(); |
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double[] bulges = getBulges(); |
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Point2D[] newPts = new Point2D[pts.length]; |
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double[] newBulges = new double[bulges.length]; |
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// TODO: Aqu? pueden existir casos no contemplados ...
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// System.out.println("flags = " + flags);
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if (flags==512 || flags==776 || flags==768) { |
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newPts = new Point2D[pts.length+1]; |
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newBulges = new double[bulges.length+1]; |
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for (int j=0;j<pts.length;j++) { |
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newPts[j] = (Point2D)pts[j];
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} |
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newPts[pts.length] = (Point2D)pts[0]; |
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newBulges[pts.length] = 0;
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} else {
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for (int j=0;j<pts.length;j++) { |
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newPts[j] = (Point2D)pts[j];
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} |
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} |
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if (pts.length>0) { |
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setBulges(newBulges); |
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Point2D[] points = GisModelCurveCalculator.calculateGisModelBulge(newPts, newBulges); |
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setVertices(points); |
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} else {
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// System.out.println("Encontrada polil?nea sin puntos ...");
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// TODO: No se debe mandar nunca una polil?nea sin puntos, si esto
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// ocurre es porque existe un error que hay que corregir ...
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} |
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} |
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/* (non-Javadoc)
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* @see com.iver.cit.jdwglib.dwg.IDwgExtrusionable#applyExtrussion()
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*/
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public void applyExtrussion() { |
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if (getVertices() == null) |
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return;
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Point2D[] vertices = getVertices(); |
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double[] lwPolylineExt = getNormal(); |
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// Normals and Extrusions aren`t the same
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if (lwPolylineExt[0]==0 && lwPolylineExt[1]==0 && lwPolylineExt[2]==0) lwPolylineExt[2] = 1.0; |
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double elev = getElevation();
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double[][] lwPolylinePoints3D = new double[vertices.length][3]; |
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for (int j=0;j<vertices.length;j++) { |
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lwPolylinePoints3D[j][0] = vertices[j].getX();
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lwPolylinePoints3D[j][1] = vertices[j].getY();
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lwPolylinePoints3D[j][2] = elev;
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lwPolylinePoints3D[j] = AcadExtrusionCalculator.CalculateAcadExtrusion(lwPolylinePoints3D[j], lwPolylineExt); |
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} |
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setElevation(elev); |
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for (int j=0;j<vertices.length;j++) { |
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vertices[j] = new Point2D.Double(lwPolylinePoints3D[j][0], lwPolylinePoints3D[j][1]); |
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} |
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setVertices(vertices); |
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} |
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/* (non-Javadoc)
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* @see com.iver.cit.jdwglib.dwg.IDwg3DTestable#has3DData()
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*/
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public boolean has3DData() { |
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return getElevation() != 0.0; |
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} |
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public double getZ() { |
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return getElevation();
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} |
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public FShape toFMapGeometry(boolean is3DFile) { |
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FPolyline2D lwpline = null;
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Point2D[] pts = getVertices(); |
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double elev = getElevation();
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if (pts != null) { |
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if (is3DFile) {
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double[][] pline3D = new double[pts.length][3]; |
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for (int j = 0; j < pts.length; j++) { |
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pline3D[j][0] = pts[j].getX();
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pline3D[j][1] = pts[j].getY();
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pline3D[j][2] = elev;
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} |
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lwpline = FMapUtil.points3DToFPolyline3D(pline3D); |
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} else {
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lwpline = FMapUtil.points2DToFPolyline2D(pts); |
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} |
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} |
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return lwpline;
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} |
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public String toFMapString(boolean is3DFile) { |
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if(is3DFile)
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return "FPolyline3D"; |
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else
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return "FPolyline2D"; |
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} |
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public String toString(){ |
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return "LwPolyline"; |
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} |
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} |