svn-gvsig-desktop / branches / v10 / libraries / libDwg / src / com / iver / cit / jdwglib / dwg / readers / DwgFileV12Reader.java @ 10847
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/*
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* Created on 09-ene-2007
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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,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.jdwglib.dwg.readers; |
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import java.awt.geom.Point2D; |
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import java.io.IOException; |
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import java.nio.ByteBuffer; |
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import java.nio.ByteOrder; |
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import java.util.ArrayList; |
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import java.util.List; |
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import com.iver.cit.jdwglib.dwg.CorruptedDwgEntityException; |
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import com.iver.cit.jdwglib.dwg.DwgFile; |
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import com.iver.cit.jdwglib.dwg.DwgHandleReference; |
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import com.iver.cit.jdwglib.dwg.DwgObject; |
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import com.iver.cit.jdwglib.dwg.DwgObjectFactory; |
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import com.iver.cit.jdwglib.dwg.IDwgBlockMember; |
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import com.iver.cit.jdwglib.dwg.IDwgPolyline; |
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import com.iver.cit.jdwglib.dwg.IDwgVertex; |
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import com.iver.cit.jdwglib.dwg.objects.DwgArc; |
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import com.iver.cit.jdwglib.dwg.objects.DwgBlockHeader; |
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import com.iver.cit.jdwglib.dwg.objects.DwgCircle; |
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import com.iver.cit.jdwglib.dwg.objects.DwgEndblk; |
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import com.iver.cit.jdwglib.dwg.objects.DwgInsert; |
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import com.iver.cit.jdwglib.dwg.objects.DwgLayer; |
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import com.iver.cit.jdwglib.dwg.objects.DwgLine; |
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import com.iver.cit.jdwglib.dwg.objects.DwgMeshPolyline; |
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import com.iver.cit.jdwglib.dwg.objects.DwgPFacePolyline; |
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import com.iver.cit.jdwglib.dwg.objects.DwgPoint; |
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import com.iver.cit.jdwglib.dwg.objects.DwgPolyline2D; |
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import com.iver.cit.jdwglib.dwg.objects.DwgPolyline3D; |
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import com.iver.cit.jdwglib.dwg.objects.DwgSeqend; |
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import com.iver.cit.jdwglib.dwg.objects.DwgSolid; |
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import com.iver.cit.jdwglib.dwg.objects.DwgText; |
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import com.iver.cit.jdwglib.dwg.objects.DwgVertex2D; |
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import com.iver.cit.jdwglib.dwg.objects.DwgVertex3D; |
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import com.iver.cit.jdwglib.dwg.objects.DwgVertexPFace; |
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import com.iver.cit.jdwglib.dwg.objects.DwgVertexPFaceFace; |
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/**
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* Reads version 12 dwg files.
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*
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* DWG 13 and DWG 12 are very different formats (nor do DWG 13-14 and 2000).
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* Thats the reason why this IDwgFileReader is very different from the rest.
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*
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* Documentation of reverse engineering of the format:
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* http://www.iwriteiam.nl/DWG12.html
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*
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* @author azabala
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*
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*/
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public class DwgFileV12Reader implements IDwgFileReader{ |
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private DwgFile dwgFile;
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private ByteBuffer bb; |
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ArrayList readers = new ArrayList(); |
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private boolean r13 = false; |
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int index = 0; |
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ArrayList blocks = new ArrayList(); |
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/**
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* While DwgBlock is a DWG entity, readed from the DWG entities
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* section, a Block is an entry in the BLOCK Section of DWG 12 format.
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*
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* Block has block name attribute (like DwgBlock), but its most
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* important attribute is its order in the Block section.
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*
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* Inserts has a short number that we think is the order of its
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* referred block in the block table (the only approach to fech
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* the block of an insert)
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* */
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class Block { |
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/*
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|----------|--------------------------------------------|
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| 1 | This is an anonymous Block generated by |
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| | hatching, associative dimensioning, other |
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| | internal operations, or an application |
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|----------|--------------------------------------------|
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| 2 | This Block has Attributes |
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|----------|--------------------------------------------|
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| 4 | This Block is an external reference (Xref) |
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|----------|--------------------------------------------|
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| 8 | not used |
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|----------|--------------------------------------------|
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| 16 | This Block is externally dependent |
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|----------|--------------------------------------------|
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| 32 | This is a resolved external reference, or |
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| | dependent of an external reference |
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|----------|--------------------------------------------|
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| 64 | This definition is referenced |
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+-------------------------------------------------------+
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*/
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byte flag;
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String name;
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short used;
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byte b1;
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short w1;
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byte b2;
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short w3;
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short crc;
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} |
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public DwgFileV12Reader(boolean isR13){ |
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r13 = isR13; |
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readers.add(null);//0 |
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readers.add(new LineReader());//1 |
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readers.add(new PointReader());//2 |
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readers.add(new CircleReader());//3 |
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readers.add(new ShapeReader());//4 |
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readers.add(null);//5 |
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readers.add(null);//6 |
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readers.add(new TextReader());//7 |
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readers.add(new ArcReader());//8 |
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readers.add(new TraceReader());//9 |
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readers.add(null);//10 |
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readers.add(new SolidReader());//11 |
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readers.add(new BlkReader());//12 |
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readers.add(new EndBlkReader());//13 |
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readers.add(new InsertReader());//14 |
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readers.add(new AttDefReader());//15 |
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readers.add(new AttribReader());//16 |
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readers.add(new SbEndReader());//17 |
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readers.add(null);//18 |
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readers.add(new PlineReader());//19 |
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readers.add(new VertexReader());//20 |
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readers.add(null);//21 |
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readers.add(new Face3DReader());//22 |
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readers.add(new DimReader());//23 |
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readers.add(new VPortReader());//24 |
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} |
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/* (non-Javadoc)
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* @see com.iver.cit.jdwglib.dwg.readers.IDwgFileReader#read(com.iver.cit.jdwglib.dwg.DwgFile, java.nio.ByteBuffer)
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*/
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public void read(DwgFile dwgFile, ByteBuffer bb) throws IOException { |
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this.dwgFile = dwgFile;
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this.bb = bb;
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try {
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//// handle.seek(6, 1) # skip rest of version
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// bb.position(12);
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// bb.position(bb.position() + 6);
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bb.position(0);
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byte[] header = new byte[12]; |
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bb.get(header); |
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String headerStr = new String(header); |
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// (_b1, _w1, _w2, _w3, _b2) = struct.unpack("<BhhhB", handle.read(8))
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bb.order(ByteOrder.LITTLE_ENDIAN);
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byte b1 = bb.get();
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short w1 = bb.getShort();
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short w2 = bb.getShort();
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short w3 = bb.getShort();
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byte b2 = bb.get();
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//To translate Python to Java, we must see the number
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//of bytes of the reading
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// _estart, _eend = struct.unpack("<ll", handle.read(8))
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bb.order(ByteOrder.LITTLE_ENDIAN);
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int eStart = bb.getInt();
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int eEnd = bb.getInt();
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// _bsstart, _l1, _bsend, _l2 = struct.unpack("<llll", handle.read(16))
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int bsStart = bb.getInt();
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int l1 = bb.getInt();
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int bsEnd = bb.getInt();
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int l2 = bb.getInt();
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Dwg12Table blockTable = getTable(); |
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Dwg12Table layerTable = getTable(); |
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Dwg12Table styleTable = getTable(); |
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Dwg12Table lineTypeTable = getTable(); |
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Dwg12Table viewTable = getTable(); |
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readHeader(); |
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Dwg12Table ucsTable = getTable(); |
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bb.position(0x500);
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Dwg12Table vportTable = getTable(); |
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bb.position(bb.position() + 8);
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Dwg12Table appidTable = getTable(); |
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bb.position(bb.position() + 6);
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Dwg12Table dimStyleTable = getTable(); |
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bb.position(0x69f);
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Dwg12Table p13table = getTable(); |
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bb.position(bb.position() + 38);
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int currentPosition = bb.position();
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if(currentPosition != eStart){
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//Se supone que deber?amos estar en eStart
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throw new RuntimeException("Error: no se ha llegado al principio de las entidades de dibujo"); |
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} |
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//lee primero entidades normales?
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readEntities(eStart, eEnd); |
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bb.position(bb.position() + 19);
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readBlockTable(blockTable); |
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readLayerTable(layerTable); |
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//de momento nos saltamos estas tablas
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// readStyleTable(styleTable);
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// readLTypeTable(lineTypeTable);
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// readViewTable(viewTable);
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// readUcsTable(ucsTable);
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// readVportTable(vportTable);
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// readAppidTable(appidTable);
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// readDimStyleTable(dimStyleTable);
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// readP13Table(p13table);
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//luego lee entidades de bloque
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readEntities(bsStart, bsEnd); |
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bb.position(bb.position() + 36);
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bb.order(ByteOrder.LITTLE_ENDIAN);
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int peStart, peEnd, pbStart, pbEnd;
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peStart = bb.getInt(); |
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peEnd = bb.getInt(); |
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pbStart = bb.getInt(); |
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pbEnd = bb.getInt(); |
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if(peStart != eStart)
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System.out.println("peStart="+peStart+" eStart="+eStart); |
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if(peEnd != eEnd)
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System.out.println("peStart="+peEnd+" eStart="+eEnd); |
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if(pbStart != bsStart)
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System.out.println("peStart="+pbStart+" eStart="+bsStart); |
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if(bsEnd != pbEnd)
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System.out.println("peStart="+pbStart+" eStart="+bsStart); |
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bb.position(bb.position() + 12);
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Dwg12TableTest bts = getTableTest(); |
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Dwg12TableTest lyrTs = getTableTest(); |
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Dwg12TableTest sts = getTableTest(); |
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Dwg12TableTest ltts = getTableTest(); |
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Dwg12TableTest vts = getTableTest(); |
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Dwg12TableTest uts = getTableTest(); |
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Dwg12TableTest vpts = getTableTest(); |
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Dwg12TableTest ats = getTableTest(); |
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Dwg12TableTest dts = getTableTest(); |
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Dwg12TableTest pts = getTableTest(); |
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} catch (Exception e) { |
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e.printStackTrace(); |
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// logger.error(e);
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} |
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} |
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private void readP13Table(Dwg12Table p13table) { |
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// TODO Auto-generated method stub
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} |
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private void readDimStyleTable(Dwg12Table dimStyleTable) { |
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short size = dimStyleTable.s1;
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int numRecs = dimStyleTable.i1;
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int start = dimStyleTable.i2;
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int end = -1; |
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bb.position(start); |
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for(int i = 0; i < numRecs; i++){ |
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end = bb.position() + size; |
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byte flag = bb.get();
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byte[] nameBytes = new byte[32]; |
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bb.get(nameBytes); |
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String name = new String(nameBytes); |
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bb.order(ByteOrder.LITTLE_ENDIAN);
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short word = bb.getShort();
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double[] d4048 = new double[9]; |
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for(int j = 0; j < 9; j++){ |
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d4048[j] = bb.getDouble(); |
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} |
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double[] d40145 = new double[6]; |
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for(int j = 0; j < 6; j++){ |
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d40145[j] = bb.getDouble(); |
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} |
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byte[] b7078 = new byte[7]; |
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for(int j = 0; j < 7; j++){ |
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b7078[j] = bb.get(); |
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} |
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byte[] b170175 = new byte[6]; |
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for(int j = 0; j < 6; j++){ |
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b170175[j] = bb.get(); |
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} |
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bb.order(ByteOrder.nativeOrder());
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byte[] s3 = new byte[16]; |
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bb.get(s3); |
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byte[] s4 = new byte[16]; |
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bb.get(s4); |
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byte[] s5 = new byte[32]; |
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bb.get(s5); |
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byte[] s6 = new byte[32]; |
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bb.get(s6); |
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byte[] s7 = new byte[32]; |
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bb.get(s6); |
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bb.position(bb.position() + 3);
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bb.order(ByteOrder.LITTLE_ENDIAN);
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short w176 = bb.getShort();
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short w177 = bb.getShort();
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short w178 = bb.getShort();
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double d146 = bb.getDouble();
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double d147 = bb.getDouble();
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int offset = end - bb.position();
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if(offset > 0) |
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bb.position(bb.position() + offset); |
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bb.order(ByteOrder.LITTLE_ENDIAN);
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short crc = bb.getShort();
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} |
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byte[] crc32 = new byte[32]; |
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bb.get(crc32); |
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} |
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private void readAppidTable(Dwg12Table appidTable) { |
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short size = appidTable.s1;
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int numRecs = appidTable.i1;
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int start = appidTable.i2;
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int end = -1; |
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bb.position(start); |
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for(int i = 0; i < numRecs; i++){ |
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end = bb.position() + size; |
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byte flag = bb.get();
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byte[] nameBytes = new byte[32]; |
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bb.get(nameBytes); |
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String name = new String(nameBytes); |
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bb.order(ByteOrder.LITTLE_ENDIAN);
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short word = bb.getShort();
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int offset = end - bb.position();
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if(offset > 0) |
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bb.position(bb.position() + offset); |
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bb.order(ByteOrder.LITTLE_ENDIAN);
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short crc = bb.getShort();
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} |
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byte[] crc32 = new byte[32]; |
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bb.get(crc32); |
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} |
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private void readVportTable(Dwg12Table vportTable) { |
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short size = vportTable.s1;
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int numRecs = vportTable.i1;
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int start = vportTable.i2;
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int end = -1; |
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bb.position(start); |
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for(int i = 0; i < numRecs; i++){ |
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end = bb.position() + size; |
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byte flag = bb.get();
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byte[] nameBytes = new byte[32]; |
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bb.get(nameBytes); |
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String name = new String(nameBytes); |
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bb.order(ByteOrder.LITTLE_ENDIAN);
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short used = bb.getShort();
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double[] pt10 = getPoint(false); |
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double[] pt11 = getPoint(false); |
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double[] pt17 = getPoint(false); |
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double[] pt16 = getPoint(true); |
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bb.order(ByteOrder.LITTLE_ENDIAN);
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double d50 = bb.getDouble();
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double d40 = bb.getDouble();
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double[] pt12 = getPoint(false); |
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bb.order(ByteOrder.LITTLE_ENDIAN);
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double d41 = bb.getDouble();
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double d42 = bb.getDouble();
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double d43 = bb.getDouble();
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double d44 = bb.getDouble();
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short[] w7178 = new short[8]; |
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for(int j = 0; j < 8; j++){ |
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w7178[j] = bb.getShort(); |
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} |
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bb.order(ByteOrder.LITTLE_ENDIAN);
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| 483 |
double d51 = bb.getDouble();
|
| 484 |
|
| 485 |
double[] pt13 = getPoint(false); |
| 486 |
double[] pt14 = getPoint(false); |
| 487 |
double[] pt15 = getPoint(false); |
| 488 |
|
| 489 |
int offset = end - bb.position();
|
| 490 |
if(offset > 0) |
| 491 |
bb.position(bb.position() + offset); |
| 492 |
|
| 493 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 494 |
short crc = bb.getShort();
|
| 495 |
} |
| 496 |
byte[] crc32 = new byte[32]; |
| 497 |
bb.get(crc32); |
| 498 |
} |
| 499 |
|
| 500 |
|
| 501 |
|
| 502 |
private void readUcsTable(Dwg12Table ucsTable) { |
| 503 |
short size = ucsTable.s1;
|
| 504 |
int numRecs = ucsTable.i1;
|
| 505 |
int start = ucsTable.i2;
|
| 506 |
int end = -1; |
| 507 |
bb.position(start); |
| 508 |
for(int i = 0; i < numRecs; i++){ |
| 509 |
end = bb.position() + size; |
| 510 |
|
| 511 |
byte flag = bb.get();
|
| 512 |
byte[] nameBytes = new byte[32]; |
| 513 |
bb.get(nameBytes); |
| 514 |
String name = new String(nameBytes); |
| 515 |
|
| 516 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 517 |
short used = bb.getShort();
|
| 518 |
|
| 519 |
double[] pt10 = getPoint(true); |
| 520 |
double[] pt11 = getPoint(true); |
| 521 |
double[] pt12 = getPoint(true); |
| 522 |
|
| 523 |
|
| 524 |
|
| 525 |
int offset = end - bb.position();
|
| 526 |
if(offset > 0) |
| 527 |
bb.position(bb.position() + offset); |
| 528 |
|
| 529 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 530 |
short crc = bb.getShort();
|
| 531 |
} |
| 532 |
byte[] crc32 = new byte[32]; |
| 533 |
bb.get(crc32); |
| 534 |
|
| 535 |
|
| 536 |
} |
| 537 |
|
| 538 |
|
| 539 |
|
| 540 |
private void readViewTable(Dwg12Table viewTable) { |
| 541 |
short size = viewTable.s1;
|
| 542 |
int numRecs = viewTable.i1;
|
| 543 |
int start = viewTable.i2;
|
| 544 |
int end = -1; |
| 545 |
bb.position(start); |
| 546 |
for(int i = 0; i < numRecs; i++){ |
| 547 |
end = bb.position() + size; |
| 548 |
|
| 549 |
byte flag = bb.get();
|
| 550 |
byte[] nameBytes = new byte[32]; |
| 551 |
bb.get(nameBytes); |
| 552 |
String name = new String(nameBytes); |
| 553 |
|
| 554 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 555 |
short used = bb.getShort();
|
| 556 |
double db40 = bb.getDouble();
|
| 557 |
|
| 558 |
double[] pt10 = getPoint(false); |
| 559 |
|
| 560 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 561 |
double db41 = bb.getDouble();
|
| 562 |
|
| 563 |
double[] pt11 = getPoint(true); |
| 564 |
|
| 565 |
double[] pt12 = getPoint(true); |
| 566 |
|
| 567 |
|
| 568 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 569 |
short w71 = bb.getShort();
|
| 570 |
double db42 = bb.getDouble();
|
| 571 |
double db43 = bb.getDouble();
|
| 572 |
double db44 = bb.getDouble();
|
| 573 |
double db50 = bb.getDouble();
|
| 574 |
|
| 575 |
int offset = end - bb.position();
|
| 576 |
if(offset > 0) |
| 577 |
bb.position(bb.position() + offset); |
| 578 |
|
| 579 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 580 |
short crc = bb.getShort();
|
| 581 |
|
| 582 |
|
| 583 |
} |
| 584 |
byte[] crc32 = new byte[32]; |
| 585 |
bb.get(crc32); |
| 586 |
} |
| 587 |
|
| 588 |
|
| 589 |
|
| 590 |
private void readLTypeTable(Dwg12Table lineTypeTable) { |
| 591 |
short size = lineTypeTable.s1;
|
| 592 |
int numRecs = lineTypeTable.i1;
|
| 593 |
int start = lineTypeTable.i2;
|
| 594 |
int end = -1; |
| 595 |
bb.position(start); |
| 596 |
for(int i = 0; i < numRecs; i++){ |
| 597 |
end = bb.position() + size; |
| 598 |
byte flag = bb.get();
|
| 599 |
byte[] nameBytes = new byte[32]; |
| 600 |
bb.get(nameBytes); |
| 601 |
String name = new String(nameBytes); |
| 602 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 603 |
short w1 = bb.getShort();
|
| 604 |
|
| 605 |
byte[] s1 = new byte[48]; |
| 606 |
bb.get(s1); |
| 607 |
String s1name = new String(s1); |
| 608 |
|
| 609 |
bb.order(ByteOrder.nativeOrder());
|
| 610 |
byte b1 = bb.get();
|
| 611 |
byte b2 = bb.get();
|
| 612 |
|
| 613 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 614 |
double[] doubles = new double[13]; |
| 615 |
for(int j = 0; j < 13; j++){ |
| 616 |
doubles[j] = bb.getDouble(); |
| 617 |
} |
| 618 |
|
| 619 |
short crc = bb.getShort();
|
| 620 |
|
| 621 |
int offset = end - bb.position();
|
| 622 |
if(offset > 0) |
| 623 |
bb.position(bb.position() + offset); |
| 624 |
} |
| 625 |
byte[] crc32 = new byte[32]; |
| 626 |
bb.get(crc32); |
| 627 |
} |
| 628 |
|
| 629 |
|
| 630 |
|
| 631 |
/**
|
| 632 |
* @param styleTable
|
| 633 |
*/
|
| 634 |
private void readStyleTable(Dwg12Table styleTable) { |
| 635 |
short size = styleTable.s1;
|
| 636 |
int numRecs = styleTable.i1;
|
| 637 |
int start = styleTable.i2;
|
| 638 |
int end = -1; |
| 639 |
bb.position(start); |
| 640 |
for(int i = 0; i < numRecs; i++){ |
| 641 |
end = bb.position() + size; |
| 642 |
byte flag = bb.get();
|
| 643 |
byte[] nameBytes = new byte[32]; |
| 644 |
bb.get(nameBytes); |
| 645 |
String name = new String(nameBytes); |
| 646 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 647 |
short w1 = bb.getShort();
|
| 648 |
double d1 = bb.getDouble();
|
| 649 |
double d2 = bb.getDouble();
|
| 650 |
double d3 = bb.getDouble();
|
| 651 |
byte b1 = bb.get();
|
| 652 |
double d4 = bb.getDouble();
|
| 653 |
|
| 654 |
byte[] s1 = new byte[128]; |
| 655 |
bb.get(s1); |
| 656 |
|
| 657 |
short crc = bb.getShort();
|
| 658 |
int offset = end - bb.position();
|
| 659 |
if(offset > 0) |
| 660 |
bb.position(bb.position() + offset); |
| 661 |
} |
| 662 |
byte[] crc32 = new byte[32]; |
| 663 |
bb.get(crc32); |
| 664 |
} |
| 665 |
|
| 666 |
|
| 667 |
|
| 668 |
/**
|
| 669 |
* @param layerTable
|
| 670 |
*/
|
| 671 |
private void readLayerTable(Dwg12Table layerTable) { |
| 672 |
short size = layerTable.s1;
|
| 673 |
int numR = layerTable.i1;
|
| 674 |
int start = layerTable.i2;
|
| 675 |
|
| 676 |
int begin = -1; |
| 677 |
int end = -1; |
| 678 |
|
| 679 |
DwgLayer layer = null;
|
| 680 |
for(int i = 0; i < numR; i++){ |
| 681 |
begin = start + i * size; |
| 682 |
bb.position(begin); |
| 683 |
end = begin + size - 2;
|
| 684 |
|
| 685 |
layer = new DwgLayer(index);
|
| 686 |
index++; |
| 687 |
|
| 688 |
byte flag = bb.get();
|
| 689 |
/*
|
| 690 |
+=====================================================+
|
| 691 |
| Flag bit | Meaning |
|
| 692 |
| value | |
|
| 693 |
|----------|------------------------------------------|
|
| 694 |
| 1 | If set, layer is frozen |
|
| 695 |
|----------|------------------------------------------|
|
| 696 |
| 2 | If set, layer is frozen by default in |
|
| 697 |
| | new Viewports |
|
| 698 |
|----------|------------------------------------------|
|
| 699 |
| 4 | If set, layer is locked |
|
| 700 |
+-----------------------------------------------------+
|
| 701 |
* */
|
| 702 |
if((flag & 0x1) > 0){ |
| 703 |
layer.setFrozen(true);
|
| 704 |
} |
| 705 |
if((flag & 0x2) > 0){ |
| 706 |
layer.setFrozenInNew(true);
|
| 707 |
} |
| 708 |
if((flag & 0x4) > 0){ |
| 709 |
layer.setLocked(true);
|
| 710 |
} |
| 711 |
|
| 712 |
byte[] nameByte = new byte[32]; |
| 713 |
bb.get(nameByte); |
| 714 |
String name = new String(nameByte).trim(); |
| 715 |
layer.setName(name); |
| 716 |
|
| 717 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 718 |
short used = bb.getShort();
|
| 719 |
short color = bb.getShort();
|
| 720 |
layer.setColor(color); |
| 721 |
short style = bb.getShort();
|
| 722 |
short crc = bb.getShort();
|
| 723 |
|
| 724 |
DwgHandleReference handle = new DwgHandleReference(0x5, i); |
| 725 |
layer.setHandle(handle); |
| 726 |
dwgFile.addDwgObject(layer); |
| 727 |
|
| 728 |
|
| 729 |
int offset = end - bb.position();
|
| 730 |
if(offset > 0) |
| 731 |
bb.position(bb.position() + offset); |
| 732 |
|
| 733 |
} |
| 734 |
byte[] crc32 = new byte[32]; |
| 735 |
bb.get(crc32); |
| 736 |
} |
| 737 |
|
| 738 |
|
| 739 |
interface EntityReader{ |
| 740 |
void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj); |
| 741 |
} |
| 742 |
|
| 743 |
/**
|
| 744 |
* In DWG 12 version, some kind of objects (Polylines and Vertex) cannot be
|
| 745 |
* instanciated until the EntityReader has readed some stuff (flags and so)
|
| 746 |
* from the file.
|
| 747 |
*
|
| 748 |
* DefferedEntityReader has the responsability to create DwgObject instances,
|
| 749 |
* and it has the precondition that DwgObject parameter of its method read must
|
| 750 |
* be null.
|
| 751 |
* */
|
| 752 |
abstract class DefferedEntityReader implements EntityReader{ |
| 753 |
abstract DwgObject getDwgObject(int index); |
| 754 |
|
| 755 |
public void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj){ |
| 756 |
if(dwgObj != null) |
| 757 |
throw new RuntimeException("DefferedEntityReader es el encargado de construir los objetos, debe recibirlos a null"); |
| 758 |
} |
| 759 |
|
| 760 |
} |
| 761 |
|
| 762 |
class LineReader implements EntityReader{ |
| 763 |
public void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj) { |
| 764 |
if(! (dwgObj instanceof DwgLine)) |
| 765 |
throw new RuntimeException("No es entidad LINE"); |
| 766 |
DwgLine line = (DwgLine) dwgObj; |
| 767 |
|
| 768 |
boolean zflag = true; |
| 769 |
if( (flags & 0x4) > 0) |
| 770 |
zflag = false;
|
| 771 |
|
| 772 |
double[] pt10 = getPoint(zflag); |
| 773 |
double[] pt11 = getPoint(zflag); |
| 774 |
|
| 775 |
line.setP1(pt10); |
| 776 |
line.setP2(pt11); |
| 777 |
|
| 778 |
if((opts & 0x1) > 0){ |
| 779 |
double[] pt210 = getPoint(true); |
| 780 |
line.setExtrusion(pt210); |
| 781 |
} |
| 782 |
|
| 783 |
if((opts & 0x2) > 0){ |
| 784 |
/*
|
| 785 |
* This field is only found in DWG12 prev
|
| 786 |
* files. Since DWG 12, elevation is saved
|
| 787 |
* in third coordinate of points.
|
| 788 |
*
|
| 789 |
* */
|
| 790 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 791 |
double db38 = bb.getDouble();
|
| 792 |
line.getP1()[2] = db38;
|
| 793 |
line.getP2()[2] = db38;
|
| 794 |
} |
| 795 |
} |
| 796 |
} |
| 797 |
|
| 798 |
|
| 799 |
|
| 800 |
class PointReader implements EntityReader{ |
| 801 |
public void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj) { |
| 802 |
if(! (dwgObj instanceof DwgPoint)) |
| 803 |
throw new RuntimeException("No es entidad POINT"); |
| 804 |
DwgPoint point = (DwgPoint) dwgObj; |
| 805 |
boolean zflag = true; |
| 806 |
if((flags & 0x4) > 0) |
| 807 |
zflag = false;
|
| 808 |
double[] pt10 = getPoint(zflag); |
| 809 |
point.setPoint(pt10); |
| 810 |
|
| 811 |
if((opts & 0x1) > 0){ |
| 812 |
double[] pt210 = getPoint(true); |
| 813 |
point.setExtrusion(pt210); |
| 814 |
} |
| 815 |
|
| 816 |
if((opts & 0x2) > 0){ |
| 817 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 818 |
double db38 = bb.getDouble();
|
| 819 |
point.getPoint()[2] = db38;
|
| 820 |
} |
| 821 |
} |
| 822 |
} |
| 823 |
|
| 824 |
|
| 825 |
class CircleReader implements EntityReader{ |
| 826 |
public void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj) { |
| 827 |
if(! (dwgObj instanceof DwgCircle)) |
| 828 |
throw new RuntimeException("No es entidad CIRCLE"); |
| 829 |
DwgCircle circle = (DwgCircle) dwgObj; |
| 830 |
|
| 831 |
boolean zflag = true; |
| 832 |
if((flags & 0x4) > 0) |
| 833 |
zflag = false;
|
| 834 |
double[] pt10 = getPoint(zflag); |
| 835 |
circle.setCenter(pt10); |
| 836 |
|
| 837 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 838 |
double d40 = bb.getDouble();
|
| 839 |
circle.setRadius(d40); |
| 840 |
|
| 841 |
double[] pt210 = null; |
| 842 |
if((opts & 0x1) > 0){ |
| 843 |
pt210 = getPoint(true);
|
| 844 |
|
| 845 |
}else{
|
| 846 |
pt210 = new double[]{0,0,1}; |
| 847 |
} |
| 848 |
circle.setExtrusion(pt210); |
| 849 |
if((opts & 0x2) > 0){ |
| 850 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 851 |
double db38 = bb.getDouble();
|
| 852 |
circle.getCenter()[2] = db38;
|
| 853 |
} |
| 854 |
} |
| 855 |
} |
| 856 |
|
| 857 |
|
| 858 |
|
| 859 |
class ShapeReader implements EntityReader{ |
| 860 |
public void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj) { |
| 861 |
|
| 862 |
//TODO POR IMPLEMENTAR DwgShape (referencia a un
|
| 863 |
//fichero de texto)
|
| 864 |
|
| 865 |
double[] pt10 = getPoint(false); |
| 866 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 867 |
short w2 = bb.getShort();
|
| 868 |
if((opts & 0x1) > 0){ |
| 869 |
double[] pt210 = getPoint(true); |
| 870 |
} |
| 871 |
if((opts & 0x2) > 0){ |
| 872 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 873 |
double db38 = bb.getDouble();
|
| 874 |
} |
| 875 |
} |
| 876 |
} |
| 877 |
|
| 878 |
public String getString(){ |
| 879 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 880 |
short len = bb.getShort();
|
| 881 |
byte[] bytes = new byte[len]; |
| 882 |
bb.order(ByteOrder.nativeOrder());
|
| 883 |
bb.get(bytes); |
| 884 |
return new String(bytes); |
| 885 |
} |
| 886 |
|
| 887 |
|
| 888 |
class TextReader implements EntityReader{ |
| 889 |
public void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj) { |
| 890 |
|
| 891 |
if(! (dwgObj instanceof DwgText)) |
| 892 |
throw new RuntimeException("No es entidad TEXT"); |
| 893 |
DwgText txt = (DwgText) dwgObj; |
| 894 |
|
| 895 |
|
| 896 |
double[] pt10 = getPoint(false); |
| 897 |
txt.setInsertionPoint(new Point2D.Double(pt10[0], pt10[1])); |
| 898 |
|
| 899 |
|
| 900 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 901 |
double db40 = bb.getDouble();
|
| 902 |
txt.setHeight(db40); |
| 903 |
|
| 904 |
|
| 905 |
|
| 906 |
String text = getString();
|
| 907 |
txt.setText(text); |
| 908 |
if((opts & 0x1) > 0){ |
| 909 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 910 |
double db50 = bb.getDouble();
|
| 911 |
txt.setRotationAngle(db50); |
| 912 |
} |
| 913 |
if((opts & 0x2) > 0){ |
| 914 |
double db41 = bb.getDouble();
|
| 915 |
txt.setWidthFactor(db41);//TODO 41 es width factor seguro?
|
| 916 |
} |
| 917 |
if((opts & 0x4) > 0){ |
| 918 |
double db51 = bb.getDouble();
|
| 919 |
txt.setObliqueAngle(db51); |
| 920 |
} |
| 921 |
if((opts & 0x8) > 0){ |
| 922 |
byte b7 = bb.get();
|
| 923 |
} |
| 924 |
if((opts & 0x10) > 0){ |
| 925 |
byte b71 = bb.get();
|
| 926 |
//parametros de mirroring
|
| 927 |
txt.setGeneration(b71); |
| 928 |
} |
| 929 |
if((opts & 0x20) > 0){ |
| 930 |
byte b72 = bb.get();
|
| 931 |
txt.setHalign(b72); |
| 932 |
} |
| 933 |
if((opts & 0x40) > 0){ |
| 934 |
double[] pt11 = getPoint(false); |
| 935 |
txt.setAlignmentPoint(new Point2D.Double(pt11[0], pt11[1])); |
| 936 |
} |
| 937 |
if((opts & 0x100) > 0){ |
| 938 |
byte b73 = bb.get();
|
| 939 |
txt.setValign(b73); |
| 940 |
} |
| 941 |
|
| 942 |
//TODO La especificaci?n DXF 12 dice que la extrusion
|
| 943 |
//codigos DXF 210, 220, 230 se aplica sobre:
|
| 944 |
/*
|
| 945 |
Line, Point, Circle, Shape, Text, Arc, Trace,
|
| 946 |
Solid, Block Reference, Polyline,
|
| 947 |
Dimension, Attribute, and Attribute Definition entity
|
| 948 |
|
| 949 |
Pero aqu? no aparece por ningun lado la extrusion
|
| 950 |
* */
|
| 951 |
double[] ext = new double[]{0, 0, 1}; |
| 952 |
txt.setExtrusion(ext); |
| 953 |
} |
| 954 |
} |
| 955 |
|
| 956 |
|
| 957 |
class ArcReader implements EntityReader{ |
| 958 |
public void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj) { |
| 959 |
if(! (dwgObj instanceof DwgArc)) |
| 960 |
throw new RuntimeException("No es entidad ARC"); |
| 961 |
DwgArc arc = (DwgArc) dwgObj; |
| 962 |
|
| 963 |
double[] pt10 = getPoint(false); |
| 964 |
arc.setCenter(pt10); |
| 965 |
|
| 966 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 967 |
double d40 = bb.getDouble();
|
| 968 |
arc.setRadius(d40); |
| 969 |
|
| 970 |
double d50 = bb.getDouble();
|
| 971 |
arc.setInitAngle(d50); |
| 972 |
|
| 973 |
double d51 = bb.getDouble();
|
| 974 |
arc.setEndAngle(51);
|
| 975 |
|
| 976 |
double[] pt210 = null; |
| 977 |
if((opts & 0x1) > 0){ |
| 978 |
pt210 = getPoint(true);
|
| 979 |
arc.setExtrusion(pt210); |
| 980 |
}else{
|
| 981 |
pt210 = new double[]{1, 0, 0}; |
| 982 |
} |
| 983 |
if((opts & 0x2) > 0){ |
| 984 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 985 |
double db38 = bb.getDouble();
|
| 986 |
arc.getCenter()[2] = db38;
|
| 987 |
} |
| 988 |
} |
| 989 |
} |
| 990 |
|
| 991 |
|
| 992 |
|
| 993 |
class TraceReader implements EntityReader{ |
| 994 |
public void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj) { |
| 995 |
//TODO Implementar DwgTrace
|
| 996 |
double[] pt10 = getPoint(false); |
| 997 |
double[] pt11 = getPoint(false); |
| 998 |
double[] pt12 = getPoint(false); |
| 999 |
double[] pt13 = getPoint(false); |
| 1000 |
if((opts & 0x1) > 0){ |
| 1001 |
double[] pt210 = getPoint(true); |
| 1002 |
} |
| 1003 |
if((opts & 0x2) > 0){ |
| 1004 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 1005 |
double db38 = bb.getDouble();
|
| 1006 |
} |
| 1007 |
} |
| 1008 |
} |
| 1009 |
|
| 1010 |
class SolidReader implements EntityReader{ |
| 1011 |
public void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj) { |
| 1012 |
if(! (dwgObj instanceof DwgSolid)) |
| 1013 |
throw new RuntimeException("No es entidad SOLID"); |
| 1014 |
DwgSolid solid = (DwgSolid) dwgObj; |
| 1015 |
|
| 1016 |
|
| 1017 |
|
| 1018 |
double[] pt11 = getPoint(false); |
| 1019 |
solid.setCorner1(pt11); |
| 1020 |
|
| 1021 |
double[] pt12 = getPoint(false); |
| 1022 |
solid.setCorner2(pt12); |
| 1023 |
|
| 1024 |
double[] pt13 = getPoint(false); |
| 1025 |
solid.setCorner3(pt13); |
| 1026 |
|
| 1027 |
double[] pt14 = getPoint(false); |
| 1028 |
solid.setCorner4(pt14); |
| 1029 |
|
| 1030 |
|
| 1031 |
if((opts & 0x1) > 0){ |
| 1032 |
double[] pt210 = getPoint(true); |
| 1033 |
solid.setExtrusion(pt210); |
| 1034 |
} |
| 1035 |
if((opts & 0x2) > 0){ |
| 1036 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 1037 |
double db38 = bb.getDouble();
|
| 1038 |
solid.getCorner1()[2] = db38;
|
| 1039 |
solid.getCorner2()[2] = db38;
|
| 1040 |
solid.getCorner3()[2] = db38;
|
| 1041 |
solid.getCorner4()[2] = db38;
|
| 1042 |
} |
| 1043 |
|
| 1044 |
solid.setExtrusion(new double[]{0, 0, 1}); |
| 1045 |
} |
| 1046 |
} |
| 1047 |
|
| 1048 |
|
| 1049 |
private Block getBlock(String blockName){ |
| 1050 |
for(int i = 0; i < blocks.size(); i++){ |
| 1051 |
Block block = (Block) blocks.get(i); |
| 1052 |
if(block.name.equalsIgnoreCase(blockName)){
|
| 1053 |
return block;
|
| 1054 |
} |
| 1055 |
} |
| 1056 |
return null; |
| 1057 |
} |
| 1058 |
|
| 1059 |
|
| 1060 |
|
| 1061 |
class BlkReader implements EntityReader{ |
| 1062 |
public void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj) { |
| 1063 |
if(! (dwgObj instanceof DwgBlockHeader)) |
| 1064 |
throw new RuntimeException("No es entidad BLOCK"); |
| 1065 |
DwgBlockHeader blk = (DwgBlockHeader) dwgObj; |
| 1066 |
|
| 1067 |
|
| 1068 |
double[] pt10 = getPoint(false); |
| 1069 |
blk.setBasePoint(pt10); |
| 1070 |
String blockName = getString();
|
| 1071 |
blk.setName(blockName); |
| 1072 |
Block block = getBlock(blockName); |
| 1073 |
if(block == null){ |
| 1074 |
System.out.println(blockName+" no encontrado en la tabla de bloques"); |
| 1075 |
} |
| 1076 |
|
| 1077 |
if((opts & 0x2) > 0) |
| 1078 |
{
|
| 1079 |
//puede ser que se trate de referencias
|
| 1080 |
//externas??
|
| 1081 |
String s3 = getString();
|
| 1082 |
} |
| 1083 |
|
| 1084 |
if((flags & 1) > 0){ |
| 1085 |
blk.setAnonymous(true);
|
| 1086 |
} |
| 1087 |
|
| 1088 |
if((flags & 2) > 0){ |
| 1089 |
blk.setHasAttrs(true);
|
| 1090 |
} |
| 1091 |
|
| 1092 |
if((flags & 4) > 0){ |
| 1093 |
blk.setBlkIsXRef(true);
|
| 1094 |
} |
| 1095 |
|
| 1096 |
if((flags & 16) > 0){ |
| 1097 |
blk.setXdep(true);
|
| 1098 |
} |
| 1099 |
|
| 1100 |
if((flags & 32) > 0){ |
| 1101 |
blk.setXRefOverLaid(true);
|
| 1102 |
} |
| 1103 |
|
| 1104 |
if((flags & 64) > 0){ |
| 1105 |
blk.setLoaded(true);
|
| 1106 |
} |
| 1107 |
|
| 1108 |
|
| 1109 |
/*
|
| 1110 |
|
| 1111 |
1 | This is an anonymous Block generated by |
|
| 1112 |
| | hatching, associative dimensioning, other |
|
| 1113 |
| | internal operations, or an application |
|
| 1114 |
|----------|--------------------------------------------|
|
| 1115 |
| 2 | This Block has Attributes |
|
| 1116 |
|----------|--------------------------------------------|
|
| 1117 |
| 4 | This Block is an external reference (Xref) |
|
| 1118 |
|----------|--------------------------------------------|
|
| 1119 |
| 8 | not used |
|
| 1120 |
|----------|--------------------------------------------|
|
| 1121 |
| 16 | This Block is externally dependent |
|
| 1122 |
|----------|--------------------------------------------|
|
| 1123 |
| 32 | This is a resolved external reference, or |
|
| 1124 |
| | dependent of an external reference |
|
| 1125 |
|----------|--------------------------------------------|
|
| 1126 |
| 64 | This definition is referenced
|
| 1127 |
|
| 1128 |
*/
|
| 1129 |
|
| 1130 |
} |
| 1131 |
} |
| 1132 |
class EndBlkReader implements EntityReader{ |
| 1133 |
public void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj) { |
| 1134 |
} |
| 1135 |
} |
| 1136 |
|
| 1137 |
class InsertReader implements EntityReader{ |
| 1138 |
public void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj) { |
| 1139 |
if(! (dwgObj instanceof DwgInsert)) |
| 1140 |
throw new RuntimeException("No es entidad INSERT"); |
| 1141 |
DwgInsert insert = (DwgInsert) dwgObj; |
| 1142 |
|
| 1143 |
bb.order(ByteOrder.nativeOrder());
|
| 1144 |
short w1 = bb.getShort();//Puede ser este el identificador de bloque??? |
| 1145 |
|
| 1146 |
DwgHandleReference blockHandle = new
|
| 1147 |
DwgHandleReference(0x5, w1);
|
| 1148 |
insert.setBlockHeaderHandle(blockHandle); |
| 1149 |
|
| 1150 |
double[] pt10 = getPoint(false); |
| 1151 |
insert.setInsertionPoint(pt10); |
| 1152 |
|
| 1153 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 1154 |
|
| 1155 |
double x = 0d, y = 0d, z = 0d; |
| 1156 |
|
| 1157 |
if((opts & 0x1) > 0){ |
| 1158 |
double db41 = bb.getDouble();
|
| 1159 |
x = db41; |
| 1160 |
} |
| 1161 |
|
| 1162 |
if((opts & 0x2) > 0){ |
| 1163 |
double db42 = bb.getDouble();
|
| 1164 |
y = db42; |
| 1165 |
} |
| 1166 |
|
| 1167 |
if((opts & 0x4) > 0){ |
| 1168 |
double db43 = bb.getDouble();
|
| 1169 |
z = db43; |
| 1170 |
} |
| 1171 |
|
| 1172 |
insert.setScale(new double[]{x, y, z}); |
| 1173 |
|
| 1174 |
if((opts & 0x8) > 0){ |
| 1175 |
double db50 = bb.getDouble();
|
| 1176 |
insert.setRotation(db50); |
| 1177 |
} |
| 1178 |
|
| 1179 |
if((opts & 0x10) > 0){ |
| 1180 |
short w70 = bb.getShort();
|
| 1181 |
//column counts
|
| 1182 |
} |
| 1183 |
//creo que esto est? mal, y que debe poner 0x20
|
| 1184 |
if((opts & 0x10) > 0){ |
| 1185 |
short w71 = bb.getShort();
|
| 1186 |
//row counts
|
| 1187 |
} |
| 1188 |
|
| 1189 |
if((opts & 0x40) > 0){ |
| 1190 |
double db44 = bb.getDouble();
|
| 1191 |
//column spacing
|
| 1192 |
} |
| 1193 |
|
| 1194 |
if((opts & 0x80) > 0){ |
| 1195 |
double db45 = bb.getDouble();
|
| 1196 |
//row spacing
|
| 1197 |
} |
| 1198 |
insert.setExtrusion(new double[]{0, 0, 1}); |
| 1199 |
} |
| 1200 |
} |
| 1201 |
|
| 1202 |
class AttDefReader implements EntityReader{ |
| 1203 |
public void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj) { |
| 1204 |
double[] p10 = getPoint(false); |
| 1205 |
String s1 = getString();
|
| 1206 |
String s3 = getString();
|
| 1207 |
String s2 = getString();
|
| 1208 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 1209 |
byte b70 = bb.get();
|
| 1210 |
|
| 1211 |
if((opts & 0x1) > 0){ |
| 1212 |
byte b73 = bb.get();
|
| 1213 |
} |
| 1214 |
|
| 1215 |
if((opts & 0x2) > 0){ |
| 1216 |
double d50 = bb.getDouble();
|
| 1217 |
} |
| 1218 |
|
| 1219 |
if((opts & 0x4) > 0){ |
| 1220 |
double d41 = bb.getDouble();
|
| 1221 |
} |
| 1222 |
|
| 1223 |
if((opts & 0x8) > 0){ |
| 1224 |
double d42 = bb.getDouble();
|
| 1225 |
} |
| 1226 |
|
| 1227 |
if((opts & 0x10) > 0){ |
| 1228 |
byte b7 = bb.get();
|
| 1229 |
} |
| 1230 |
|
| 1231 |
if((opts & 0x20) > 0){ |
| 1232 |
byte b71 = bb.get();
|
| 1233 |
} |
| 1234 |
|
| 1235 |
if((opts & 0x40) > 0){ |
| 1236 |
byte b72 = bb.get();
|
| 1237 |
} |
| 1238 |
|
| 1239 |
if((opts & 0x80) > 0){ |
| 1240 |
double[] p11 = getPoint(false); |
| 1241 |
} |
| 1242 |
|
| 1243 |
if((opts & 0x100) > 0){ |
| 1244 |
double[] p210 = getPoint(true); |
| 1245 |
} |
| 1246 |
|
| 1247 |
if((opts & 0x200) > 0){ |
| 1248 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 1249 |
double d38 = bb.getDouble();
|
| 1250 |
} |
| 1251 |
} |
| 1252 |
} |
| 1253 |
|
| 1254 |
class AttribReader implements EntityReader{ |
| 1255 |
public void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj) { |
| 1256 |
double[] p10 = getPoint(false); |
| 1257 |
|
| 1258 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 1259 |
double d40 = bb.getDouble();
|
| 1260 |
|
| 1261 |
String s1 = getString();
|
| 1262 |
String s2 = getString();
|
| 1263 |
|
| 1264 |
if((opts & 0x1) > 0){ |
| 1265 |
byte b73 = bb.get();
|
| 1266 |
} |
| 1267 |
|
| 1268 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 1269 |
if((opts & 0x2) > 0){ |
| 1270 |
double d50 = bb.getDouble();
|
| 1271 |
} |
| 1272 |
|
| 1273 |
if((opts & 0x4) > 0){ |
| 1274 |
double d41 = bb.getDouble();
|
| 1275 |
} |
| 1276 |
|
| 1277 |
if((opts & 0x8) > 0){ |
| 1278 |
double d42 = bb.getDouble();
|
| 1279 |
} |
| 1280 |
|
| 1281 |
if((opts & 0x10) > 0){ |
| 1282 |
byte b7 = bb.get();
|
| 1283 |
} |
| 1284 |
|
| 1285 |
if((opts & 0x20) > 0){ |
| 1286 |
byte b71 = bb.get();
|
| 1287 |
} |
| 1288 |
|
| 1289 |
if((opts & 0x40) > 0){ |
| 1290 |
byte b72 = bb.get();
|
| 1291 |
} |
| 1292 |
|
| 1293 |
if((opts & 0x80) > 0){ |
| 1294 |
double[] p11 = getPoint(false); |
| 1295 |
} |
| 1296 |
double[] p210 = null; |
| 1297 |
if((opts & 0x100) > 0){ |
| 1298 |
p210 = getPoint(true);
|
| 1299 |
}else{
|
| 1300 |
p210 = new double[]{0, 0, 1}; |
| 1301 |
} |
| 1302 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 1303 |
if((opts & 0x200) > 0){ |
| 1304 |
double d38 = bb.getDouble();
|
| 1305 |
} |
| 1306 |
} |
| 1307 |
} |
| 1308 |
|
| 1309 |
|
| 1310 |
class SbEndReader implements EntityReader{ |
| 1311 |
public void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj) { |
| 1312 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 1313 |
int l = bb.getInt();
|
| 1314 |
} |
| 1315 |
} |
| 1316 |
|
| 1317 |
class PlineReader extends DefferedEntityReader{ |
| 1318 |
|
| 1319 |
/*
|
| 1320 |
* CURVE TYPE CONSTANTS
|
| 1321 |
* */
|
| 1322 |
final static int CLOSED = 0x01;//if line is a mesh, curve closed in M direction |
| 1323 |
final static int CURVE_FIT = 0x02; |
| 1324 |
final static int SPLINE_FIT = 0x04; |
| 1325 |
final static int PLINE3D = 0x08; |
| 1326 |
final static int MESH = 0x10; |
| 1327 |
final static int MESH_CLOSED = 0x20;//curve closed in N direction |
| 1328 |
final static int ANY_MESH = 0x30; //MESH | MESH_CLOSED |
| 1329 |
final static int PFACE = 0x40; |
| 1330 |
final static int CONT_LTYPE = 0x80; |
| 1331 |
|
| 1332 |
/*
|
| 1333 |
* polyline attributes
|
| 1334 |
* */
|
| 1335 |
/**
|
| 1336 |
* flag: curve type (CLOSED, MESH,PFACE, etc.)
|
| 1337 |
* */
|
| 1338 |
byte flag70;
|
| 1339 |
/**
|
| 1340 |
* Number of points in M direction for a Mesh,
|
| 1341 |
* number of vertices for a PFace polyline
|
| 1342 |
* */
|
| 1343 |
byte meshM71;
|
| 1344 |
/**
|
| 1345 |
* Number of points in N direction for a Mesh,
|
| 1346 |
* number of faces for a PFace polyline
|
| 1347 |
* */
|
| 1348 |
byte meshN72;
|
| 1349 |
double startW40;
|
| 1350 |
byte smoothM73;
|
| 1351 |
byte smoothN74;
|
| 1352 |
byte curveType75;
|
| 1353 |
|
| 1354 |
|
| 1355 |
private void reset(){ |
| 1356 |
flag70 = 0;
|
| 1357 |
meshM71 = 0;
|
| 1358 |
meshN72 = 0;
|
| 1359 |
startW40 = 0;
|
| 1360 |
smoothM73 = 0;
|
| 1361 |
smoothN74 = 0;
|
| 1362 |
curveType75 = 0;
|
| 1363 |
} |
| 1364 |
|
| 1365 |
public void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj) { |
| 1366 |
super.read(bb, flags, opts, dwgObj);
|
| 1367 |
|
| 1368 |
//TODO El byte 70 es el que determina el tipo de Polyline
|
| 1369 |
if( (opts & 0x1) > 0){ |
| 1370 |
flag70 = bb.get(); |
| 1371 |
} |
| 1372 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 1373 |
if( (opts & 0x2) > 0){ |
| 1374 |
startW40 = bb.getDouble(); |
| 1375 |
} |
| 1376 |
|
| 1377 |
if( (opts & 0x4) > 0){ |
| 1378 |
meshM71 = bb.get(); |
| 1379 |
} |
| 1380 |
|
| 1381 |
if( (opts & 0x8) > 0){ |
| 1382 |
meshN72 = bb.get(); |
| 1383 |
} |
| 1384 |
|
| 1385 |
if( (opts & 0x10) > 0){ |
| 1386 |
smoothM73 = bb.get(); |
| 1387 |
} |
| 1388 |
|
| 1389 |
if( (opts & 0x20) > 0){ |
| 1390 |
smoothN74 = bb.get(); |
| 1391 |
} |
| 1392 |
|
| 1393 |
if( (opts & 0x40) > 0){ |
| 1394 |
curveType75 = bb.get(); |
| 1395 |
} |
| 1396 |
} |
| 1397 |
|
| 1398 |
DwgObject getDwgObject(int index) {
|
| 1399 |
DwgObject solution = null;
|
| 1400 |
boolean isSpline = (flag70 & SPLINE_FIT) != 0 ? true: false; |
| 1401 |
if( (flag70 & PFACE) != 0){ |
| 1402 |
//PFacePolyline
|
| 1403 |
solution = new DwgPFacePolyline(index);
|
| 1404 |
// often made wrong, so we have to correct...TODO Revisar
|
| 1405 |
if(meshM71 <= 0) |
| 1406 |
meshM71 = 16;
|
| 1407 |
if(meshN72 <= 0) |
| 1408 |
meshN72 = 4;
|
| 1409 |
((DwgPFacePolyline)solution).setVertexCount(meshM71); |
| 1410 |
((DwgPFacePolyline)solution).setFaceCount(meshN72); |
| 1411 |
}else if((flag70 & ANY_MESH) != 0){ |
| 1412 |
//Mesh, closed or not
|
| 1413 |
solution = new DwgMeshPolyline(index);
|
| 1414 |
boolean isClosedM = (flag70 & CLOSED) != 0 ? true: false; |
| 1415 |
boolean isClosedN = (flag70 & MESH_CLOSED) > 0 ? true: false; |
| 1416 |
|
| 1417 |
((DwgMeshPolyline)solution).setClosedM(isClosedM); |
| 1418 |
((DwgMeshPolyline)solution).setClosedN(isClosedN); |
| 1419 |
if(isSpline){
|
| 1420 |
((DwgMeshPolyline)solution).setMVerticies(smoothM73); |
| 1421 |
((DwgMeshPolyline)solution).setNVerticies(smoothN74); |
| 1422 |
}else{
|
| 1423 |
((DwgMeshPolyline)solution).setMVerticies(meshM71); |
| 1424 |
((DwgMeshPolyline)solution).setNVerticies(meshN72); |
| 1425 |
} |
| 1426 |
((DwgMeshPolyline)solution).setCurveType(curveType75); |
| 1427 |
}else{
|
| 1428 |
//polyline
|
| 1429 |
boolean is3DPolyline = (flag70 & PLINE3D) != 0 ? true: false; |
| 1430 |
if(is3DPolyline)
|
| 1431 |
{
|
| 1432 |
solution = new DwgPolyline3D(index);
|
| 1433 |
boolean isClosed = (flag70 & CLOSED) != 0 ? true: false; |
| 1434 |
//for compatibility with dwg 13 and later, we use a byte flag for
|
| 1435 |
//closed and spline properties
|
| 1436 |
((DwgPolyline3D)solution).setClosedFlags(isClosed ? 0x1: 0x0); |
| 1437 |
((DwgPolyline3D)solution).setSplineFlags(isSpline ? 0x1: 0x0); |
| 1438 |
|
| 1439 |
}else{
|
| 1440 |
solution = new DwgPolyline2D(index);
|
| 1441 |
((DwgPolyline2D)solution).setCurveType(curveType75); |
| 1442 |
((DwgPolyline2D)solution).setInitWidth(startW40); |
| 1443 |
} |
| 1444 |
} |
| 1445 |
|
| 1446 |
reset(); |
| 1447 |
|
| 1448 |
return solution;
|
| 1449 |
} |
| 1450 |
} |
| 1451 |
|
| 1452 |
class VertexReader extends DefferedEntityReader{ |
| 1453 |
final static int FIT_POINT = 0x01; |
| 1454 |
final static int TANGENT = 0x02; |
| 1455 |
final static int SPLINE_LINE_FIT = 0x08; |
| 1456 |
final static int SPLINE_CONTROL_POINT = 0x10; |
| 1457 |
final static int POLYLINE_3D = 0x20; |
| 1458 |
final static int MESH_3D = 0x40; |
| 1459 |
final static int PFACE_MESH = 0x80; |
| 1460 |
|
| 1461 |
/**
|
| 1462 |
* Coordinates of the vertex
|
| 1463 |
* */
|
| 1464 |
double[] pt10; |
| 1465 |
|
| 1466 |
/**
|
| 1467 |
* Start width of the vertex. If 0, it will
|
| 1468 |
* use the start with of the owner polyline.
|
| 1469 |
* */
|
| 1470 |
double startWidth40;
|
| 1471 |
/**
|
| 1472 |
* End width of the vertex. If 0, it will
|
| 1473 |
* use the end with of the owner polyline.
|
| 1474 |
* */
|
| 1475 |
double endWidth41;
|
| 1476 |
|
| 1477 |
/**
|
| 1478 |
* Bulge of the vertex
|
| 1479 |
* */
|
| 1480 |
double tangentDir50;
|
| 1481 |
|
| 1482 |
/**
|
| 1483 |
* Flag that maks what kind of vertex is:
|
| 1484 |
1 | Extra vertex created by curve-fitting |
|
| 1485 |
2 | Curve-fit tangent defined for this vertex. |
|
| 1486 |
| | A curve-fit tangent direction of 0 may be |
|
| 1487 |
| | omitted from the DXF output, but is |
|
| 1488 |
| | significant if this bit is set |
|
| 1489 |
|----------|---------------------------------------------|
|
| 1490 |
| 4 | Unused (never set in DXF files) |
|
| 1491 |
|----------|---------------------------------------------|
|
| 1492 |
| 8 | Spline vertex created by spline-fitting |
|
| 1493 |
|----------|---------------------------------------------|
|
| 1494 |
| 16 | Spline frame control point |
|
| 1495 |
|----------|---------------------------------------------|
|
| 1496 |
| 32 | 3D Polyline vertex |
|
| 1497 |
|----------|---------------------------------------------|
|
| 1498 |
| 64 | 3D polygon mesh vertex |
|
| 1499 |
|----------|---------------------------------------------|
|
| 1500 |
| 128 | Polyface mesh vertex |
|
| 1501 |
+--------------------------------------------------------+
|
| 1502 |
* */
|
| 1503 |
byte vertexFlag70;
|
| 1504 |
|
| 1505 |
/**
|
| 1506 |
* If the vertex is a pfaceface vertex it hasnt real coordinates.
|
| 1507 |
* Instead it has an index for each vertex of the mesh's face
|
| 1508 |
* */
|
| 1509 |
int[] pfacefaceIndex; |
| 1510 |
|
| 1511 |
void reset(){
|
| 1512 |
pt10 = null;
|
| 1513 |
startWidth40 = 0;
|
| 1514 |
endWidth41 = 0;
|
| 1515 |
tangentDir50 = 0;
|
| 1516 |
vertexFlag70 = 0;
|
| 1517 |
pfacefaceIndex = null;
|
| 1518 |
|
| 1519 |
} |
| 1520 |
|
| 1521 |
/*
|
| 1522 |
* azabala
|
| 1523 |
* Nos estabamos encontrando con vertices muy raros
|
| 1524 |
* (e incluso con valores NaN) cuando el valor de opts
|
| 1525 |
* es 16872, si seguiamos al pie de la letra la especificaci?n
|
| 1526 |
* de http://www.iwriteiam.nl/DWG12.html o Pythoncad.
|
| 1527 |
*
|
| 1528 |
* Haciendo un poco de ingenieria inversa hemos visto que
|
| 1529 |
* si opts==16872, hay que modificar el algoritmo
|
| 1530 |
* */
|
| 1531 |
|
| 1532 |
public void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj) { |
| 1533 |
super.read(bb, flags, opts, dwgObj);
|
| 1534 |
if(opts != 16872){ |
| 1535 |
int position = bb.position();
|
| 1536 |
pt10 = getPoint(false);
|
| 1537 |
if(pt10[0] < 0 || pt10[0] < 600000 || pt10[0] > 800000){ |
| 1538 |
System.currentTimeMillis();
|
| 1539 |
} |
| 1540 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 1541 |
if((opts & 0x1) > 0){ |
| 1542 |
startWidth40 = bb.getDouble(); |
| 1543 |
} |
| 1544 |
if((opts & 0x2) > 0){ |
| 1545 |
endWidth41 = bb.getDouble(); |
| 1546 |
} |
| 1547 |
if((opts & 0x4) > 0){ |
| 1548 |
tangentDir50 = bb.getDouble(); |
| 1549 |
} |
| 1550 |
if((opts & 0x8) > 0){ |
| 1551 |
vertexFlag70 = bb.get(); |
| 1552 |
} |
| 1553 |
}else{
|
| 1554 |
//if opts == 16872 (decimal) we invert the
|
| 1555 |
//order of the reading
|
| 1556 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 1557 |
if((opts & 0x1) > 0){ |
| 1558 |
startWidth40 = bb.getDouble(); |
| 1559 |
} |
| 1560 |
if((opts & 0x2) > 0){ |
| 1561 |
endWidth41 = bb.getDouble(); |
| 1562 |
} |
| 1563 |
if((opts & 0x4) > 0){ |
| 1564 |
tangentDir50 = bb.getDouble(); |
| 1565 |
} |
| 1566 |
if((opts & 0x8) > 0){ |
| 1567 |
vertexFlag70 = bb.get(); |
| 1568 |
} |
| 1569 |
int p1 = bb.getShort();
|
| 1570 |
int p2 = bb.getShort();
|
| 1571 |
int p3 = bb.getShort();
|
| 1572 |
int p4 = bb.getShort();
|
| 1573 |
|
| 1574 |
pfacefaceIndex = new int[]{p1,p2,p3,p4}; |
| 1575 |
} |
| 1576 |
|
| 1577 |
|
| 1578 |
|
| 1579 |
} |
| 1580 |
|
| 1581 |
DwgObject getDwgObject(int index) {
|
| 1582 |
DwgObject solution = null;
|
| 1583 |
if( (vertexFlag70 & PFACE_MESH) != 0){ |
| 1584 |
//It is a PFace Mesh Vertex
|
| 1585 |
if( (vertexFlag70 & MESH_3D) != 0){ |
| 1586 |
solution = new DwgVertexPFace(index);
|
| 1587 |
((DwgVertexPFace)solution).setPoint(pt10); |
| 1588 |
((DwgVertexPFace)solution).setFlags(vertexFlag70); |
| 1589 |
}else{
|
| 1590 |
/*
|
| 1591 |
azabala
|
| 1592 |
DXF 12 spec says:
|
| 1593 |
"If the Vertex defines a face of the mesh,
|
| 1594 |
its Vertex flags (70) group has the 128 bit
|
| 1595 |
set but not the 64 bit. The 10,
|
| 1596 |
20, and 30 (location) groups of the face entity are
|
| 1597 |
irrelevant and are always written as zero in a DXF file.
|
| 1598 |
The vertex indexes that define the mesh are given by 71,
|
| 1599 |
72, 73, and 74 groups, the values of which are integers
|
| 1600 |
specifying one of the previously defined vertices by
|
| 1601 |
index.
|
| 1602 |
If the index is negative, the edge that begins with
|
| 1603 |
that vertex is invisible.
|
| 1604 |
|
| 1605 |
The first zero vertex marks the
|
| 1606 |
end of the vertices of the face.
|
| 1607 |
|
| 1608 |
Since the 71 through 74
|
| 1609 |
groups are optional fields with default values of zero,
|
| 1610 |
they are present in DXF only if nonzero."
|
| 1611 |
|
| 1612 |
But DWG 12 spec doesnt say anything about 71,72,73 and
|
| 1613 |
74 fields for VERTEX.
|
| 1614 |
* */
|
| 1615 |
solution = new DwgVertexPFaceFace(index);
|
| 1616 |
((DwgVertexPFaceFace)solution).setVerticesidx(pfacefaceIndex); |
| 1617 |
} |
| 1618 |
}else if( (vertexFlag70 & POLYLINE_3D) != 0){ |
| 1619 |
solution = new DwgVertex3D(index);
|
| 1620 |
((DwgVertex3D)solution).setPoint(pt10); |
| 1621 |
((DwgVertex3D)solution).setFlags(vertexFlag70); |
| 1622 |
}else{
|
| 1623 |
solution = new DwgVertex2D(index);
|
| 1624 |
((DwgVertex2D)solution).setPoint(pt10); |
| 1625 |
((DwgVertex2D)solution).setFlags(vertexFlag70); |
| 1626 |
} |
| 1627 |
|
| 1628 |
reset(); |
| 1629 |
return solution;
|
| 1630 |
} |
| 1631 |
} |
| 1632 |
|
| 1633 |
class Face3DReader implements EntityReader{ |
| 1634 |
public void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj) { |
| 1635 |
boolean zflag = false; |
| 1636 |
if((flags & 0x4) > 0){ |
| 1637 |
zflag = true;
|
| 1638 |
} |
| 1639 |
double[] pt10 = getPoint(zflag); |
| 1640 |
double[] pt11 = getPoint(zflag); |
| 1641 |
double[] pt12 = getPoint(zflag); |
| 1642 |
double[] pt13 = getPoint(zflag); |
| 1643 |
|
| 1644 |
} |
| 1645 |
} |
| 1646 |
|
| 1647 |
class DimReader implements EntityReader{ |
| 1648 |
public void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj) { |
| 1649 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 1650 |
short w1 = bb.getShort();
|
| 1651 |
double[] pt10 = getPoint(true); |
| 1652 |
double[] pt11 = getPoint(false); |
| 1653 |
|
| 1654 |
if((opts & 0x2) > 0){ |
| 1655 |
byte b70 = bb.get();
|
| 1656 |
} |
| 1657 |
|
| 1658 |
if((opts & 0x1) > 0){ |
| 1659 |
double[] pt12 = getPoint(true); |
| 1660 |
} |
| 1661 |
|
| 1662 |
if((opts & 0x4) > 0){ |
| 1663 |
String s1 = getString();
|
| 1664 |
} |
| 1665 |
|
| 1666 |
if((opts & 0x8) > 0){ |
| 1667 |
double[] pt13 = getPoint(true); |
| 1668 |
} |
| 1669 |
|
| 1670 |
if((opts & 0x10) > 0){ |
| 1671 |
double[] pt13 = getPoint(true); |
| 1672 |
} |
| 1673 |
|
| 1674 |
if((opts & 0x20) > 0){ |
| 1675 |
double[] pt15 = getPoint(true); |
| 1676 |
} |
| 1677 |
|
| 1678 |
if((opts & 0x40) > 0){ |
| 1679 |
double[] pt16 = getPoint(true); |
| 1680 |
} |
| 1681 |
|
| 1682 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 1683 |
if((opts & 0x80) > 0){ |
| 1684 |
double d40 = bb.getDouble();
|
| 1685 |
} |
| 1686 |
|
| 1687 |
if((opts & 0x100) > 0){ |
| 1688 |
double d50 = bb.getDouble();
|
| 1689 |
} |
| 1690 |
|
| 1691 |
if((opts & 0x200) > 0){ |
| 1692 |
double d51 = bb.getDouble();
|
| 1693 |
} |
| 1694 |
if((opts & 0x400) > 0){ |
| 1695 |
double d52 = bb.getDouble();
|
| 1696 |
} |
| 1697 |
if((opts & 0x800) > 0){ |
| 1698 |
double d53 = bb.getDouble();
|
| 1699 |
} |
| 1700 |
} |
| 1701 |
} |
| 1702 |
|
| 1703 |
class VPortReader implements EntityReader{ |
| 1704 |
public void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj) { |
| 1705 |
double[] pt10 = getPoint(true); |
| 1706 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 1707 |
double d40 = bb.getDouble();
|
| 1708 |
double d41 = bb.getDouble();
|
| 1709 |
short w68 = bb.getShort();
|
| 1710 |
} |
| 1711 |
} |
| 1712 |
|
| 1713 |
/**
|
| 1714 |
* @param start
|
| 1715 |
* @param end
|
| 1716 |
*/
|
| 1717 |
private void readEntities(int start, int end) { |
| 1718 |
bb.position(start); |
| 1719 |
int ant = bb.position();
|
| 1720 |
int emax = readers.size();
|
| 1721 |
EntityReader reader = null;
|
| 1722 |
|
| 1723 |
/*
|
| 1724 |
* it isnt null until well finish to read the vertices
|
| 1725 |
* of a given polyline (seqend found)
|
| 1726 |
*
|
| 1727 |
*/
|
| 1728 |
IDwgPolyline currentPolyline = null;
|
| 1729 |
|
| 1730 |
/*
|
| 1731 |
* Not null when a DwgBlock is found, it will be null
|
| 1732 |
* when a DwgEndBlk found. While this, all entities readed
|
| 1733 |
* will be added to currentBlock
|
| 1734 |
* */
|
| 1735 |
DwgBlockHeader currentBlock = null;
|
| 1736 |
|
| 1737 |
while(ant < (end - 32)){ |
| 1738 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 1739 |
|
| 1740 |
byte kind = bb.get();
|
| 1741 |
if(kind < emax){
|
| 1742 |
reader = (EntityReader) readers.get(kind); |
| 1743 |
}//if
|
| 1744 |
|
| 1745 |
|
| 1746 |
//PROPERTIES COMMON TO ALL DWG 12 ENTITIES
|
| 1747 |
byte flag = bb.get();
|
| 1748 |
short lenght = bb.getShort();
|
| 1749 |
|
| 1750 |
//segun esto los dos ultimos bytes son el CRC
|
| 1751 |
int crcpos = ant + (lenght - 2); |
| 1752 |
|
| 1753 |
|
| 1754 |
short layer = bb.getShort();
|
| 1755 |
short opts = bb.getShort();
|
| 1756 |
|
| 1757 |
byte color = 0; |
| 1758 |
if ((flag & 0x1) > 0){ |
| 1759 |
color = bb.get(); |
| 1760 |
} |
| 1761 |
|
| 1762 |
byte extra = 0; |
| 1763 |
if ((flag & 0x40) > 0) |
| 1764 |
extra = bb.get(); |
| 1765 |
|
| 1766 |
|
| 1767 |
String xdata = null; |
| 1768 |
if((extra & 0x2) > 0) |
| 1769 |
xdata = readXdata(); |
| 1770 |
|
| 1771 |
|
| 1772 |
short type = 0; |
| 1773 |
if((flag & 0x2) > 0) |
| 1774 |
type = bb.getShort(); |
| 1775 |
|
| 1776 |
|
| 1777 |
double z = 0d; |
| 1778 |
if( (flag & 0x4) > 0 && (kind > 2) && (kind != 22)){ |
| 1779 |
z = bb.getDouble(); |
| 1780 |
} |
| 1781 |
|
| 1782 |
double th = 0d; |
| 1783 |
if((flag & 0x8) > 0){ |
| 1784 |
th = bb.getDouble(); |
| 1785 |
} |
| 1786 |
|
| 1787 |
byte[] handle = null; |
| 1788 |
if((flag & 0x20) > 0) |
| 1789 |
handle = getHandle(); |
| 1790 |
|
| 1791 |
short paper = 0; |
| 1792 |
if((extra & 0x4) > 0){ |
| 1793 |
paper = bb.getShort(); |
| 1794 |
} |
| 1795 |
|
| 1796 |
if(reader != null){ |
| 1797 |
DwgObject entity = null;
|
| 1798 |
|
| 1799 |
entity = DwgObjectFactory. |
| 1800 |
getInstance(). |
| 1801 |
create(kind, index); |
| 1802 |
|
| 1803 |
//TODO Idem con el espacio papel o el espacio modelo
|
| 1804 |
boolean paperSpace = false; |
| 1805 |
if(paper != 0){ |
| 1806 |
paperSpace = true;
|
| 1807 |
} |
| 1808 |
reader.read(bb, flag, opts, entity); |
| 1809 |
if(reader instanceof DefferedEntityReader){ |
| 1810 |
entity = ((DefferedEntityReader)reader).getDwgObject(index); |
| 1811 |
} |
| 1812 |
|
| 1813 |
if(entity instanceof IDwgPolyline){ |
| 1814 |
currentPolyline = (IDwgPolyline) entity; |
| 1815 |
} |
| 1816 |
else if(entity instanceof DwgSeqend){ |
| 1817 |
currentPolyline = null;
|
| 1818 |
}else if(entity instanceof DwgBlockHeader){ |
| 1819 |
currentBlock = (DwgBlockHeader) entity; |
| 1820 |
}else if(entity instanceof DwgEndblk){ |
| 1821 |
currentBlock = null;
|
| 1822 |
} |
| 1823 |
|
| 1824 |
DwgHandleReference hdl = null;
|
| 1825 |
/*
|
| 1826 |
In V12 format a handle has 2 bytes, while
|
| 1827 |
in later formats a hande has 4 bytes. To avoid
|
| 1828 |
rewriting a lot of code we are going to do some "tricks"
|
| 1829 |
with handles.
|
| 1830 |
*/
|
| 1831 |
if(entity instanceof DwgBlockHeader){ |
| 1832 |
/*
|
| 1833 |
* If entity is a block, in a later step we'll match
|
| 1834 |
* an insert with its block by handle.
|
| 1835 |
* In dwg 12 format, association insert-blocks is not
|
| 1836 |
* by handle (is from the order of the block in block table)
|
| 1837 |
* So here we use a little trick to avoid rewriting of
|
| 1838 |
* block and inserts management logic.
|
| 1839 |
* */
|
| 1840 |
int order = -1; |
| 1841 |
DwgBlockHeader blk = (DwgBlockHeader) entity; |
| 1842 |
String blockName = blk.getName();
|
| 1843 |
Block block = getBlock(blockName); |
| 1844 |
if(block != null){ |
| 1845 |
order = blocks.indexOf(block); |
| 1846 |
hdl = new DwgHandleReference(0, order); |
| 1847 |
}else{
|
| 1848 |
System.out.println("BLOQUE "+blockName+" NO EST? EN LA TABLA DE BLOQUES"); |
| 1849 |
bb.position(crcpos); |
| 1850 |
short crc = bb.getShort();
|
| 1851 |
continue;
|
| 1852 |
} |
| 1853 |
}else{
|
| 1854 |
if(handle != null){ |
| 1855 |
int offset = handle.hashCode();
|
| 1856 |
hdl = new DwgHandleReference(0, offset); |
| 1857 |
}else{
|
| 1858 |
System.out.println("HANDLE A NULL"); |
| 1859 |
bb.position(crcpos); |
| 1860 |
short crc = bb.getShort();
|
| 1861 |
continue;
|
| 1862 |
} |
| 1863 |
} |
| 1864 |
|
| 1865 |
entity.setColor(color); |
| 1866 |
entity.setType(type);//TODO Este type es el mismo que para DWG 13-14-2000?
|
| 1867 |
entity.setSizeInBits(lenght);//TODO Este size es el mismo que para DWG 13-14-2000?
|
| 1868 |
entity.setHandle(hdl); |
| 1869 |
/*
|
| 1870 |
* TODO
|
| 1871 |
* Parece ser que DWG 12 no gestiona las layers al igual que las
|
| 1872 |
* versiones sucesivas (hay que descifrar si 'layer' significa
|
| 1873 |
* un orden en la tabla de layers
|
| 1874 |
*
|
| 1875 |
* De ser as?, y si indexamos las layers de esta forma
|
| 1876 |
* (con un HandleReference de code 0x5) ser? todo homogeneo
|
| 1877 |
*
|
| 1878 |
* TODO Construir instancias de DwgLayer a partir de las entradas
|
| 1879 |
* de la tabla de layers, e indexarlas con un handle igual a su orden
|
| 1880 |
* */
|
| 1881 |
|
| 1882 |
entity.setLayerHandle(new DwgHandleReference(0x5, layer)); |
| 1883 |
|
| 1884 |
//TODO El valor de elevation en 12 es comun a todas, en 13 y ulteriores
|
| 1885 |
//no. ver que se hace
|
| 1886 |
// entity.setZ(z);
|
| 1887 |
|
| 1888 |
List xdataAsList = new ArrayList(); |
| 1889 |
xdataAsList.add(xdata); |
| 1890 |
entity.setExtendedData(xdataAsList); |
| 1891 |
|
| 1892 |
//TODO con thickness tenemos el mismo problema que con
|
| 1893 |
//elevation. En dwg 12 es comun a todos
|
| 1894 |
// entity.setThickness(th);
|
| 1895 |
|
| 1896 |
ant = bb.position(); |
| 1897 |
// if(ant < crcpos){
|
| 1898 |
if(ant != crcpos){
|
| 1899 |
bb.position(bb.position() + (crcpos - ant)); |
| 1900 |
} |
| 1901 |
short crc = bb.getShort();
|
| 1902 |
|
| 1903 |
if( (entity instanceof IDwgVertex) && (currentPolyline != null)){ |
| 1904 |
currentPolyline.addVertex((IDwgVertex) entity); |
| 1905 |
|
| 1906 |
}else if( (entity instanceof IDwgBlockMember) && |
| 1907 |
!(entity instanceof IDwgVertex) &&
|
| 1908 |
(currentBlock != null)){
|
| 1909 |
//In DWG 12 vertex is not part of Block.
|
| 1910 |
//its part of a polyline (which is part of a block)
|
| 1911 |
currentBlock.addObject(entity); |
| 1912 |
} else{
|
| 1913 |
// if(! paperSpace)//TODO solo a?adimos las entidades en espacio modelo????
|
| 1914 |
dwgFile.addDwgObject(entity); |
| 1915 |
} |
| 1916 |
}//if reader
|
| 1917 |
else{
|
| 1918 |
System.out.println("Reader a NULL. DWG 12 MAL LEIDO"); |
| 1919 |
System.out.println("kind = " + kind); |
| 1920 |
bb.position(crcpos); |
| 1921 |
short crc = bb.getShort();
|
| 1922 |
continue;
|
| 1923 |
|
| 1924 |
} |
| 1925 |
ant = bb.position(); |
| 1926 |
// byte[] crc32 = new byte[32];
|
| 1927 |
// bb.get(crc32);
|
| 1928 |
index++; |
| 1929 |
}//while
|
| 1930 |
byte[] crc32 = new byte[32];//TODO va dentro o fuera del while?? |
| 1931 |
bb.get(crc32); |
| 1932 |
} |
| 1933 |
|
| 1934 |
|
| 1935 |
/**
|
| 1936 |
* @return
|
| 1937 |
*/
|
| 1938 |
private byte[] getHandle() { |
| 1939 |
byte[] bytes = null; |
| 1940 |
bb.order(ByteOrder.nativeOrder());
|
| 1941 |
byte len = bb.get();
|
| 1942 |
bytes = new byte[len]; |
| 1943 |
bb.get(bytes); |
| 1944 |
return bytes;
|
| 1945 |
//Ver si los handles de DWG 12 concurdan con nuestra clase
|
| 1946 |
//DwgHandleReference
|
| 1947 |
// return (5, _len) + tuple(_bytes)
|
| 1948 |
} |
| 1949 |
|
| 1950 |
|
| 1951 |
|
| 1952 |
/**
|
| 1953 |
* @return
|
| 1954 |
*/
|
| 1955 |
private String readXdata() { |
| 1956 |
String extData = ""; |
| 1957 |
short xlen = bb.getShort();
|
| 1958 |
while (xlen > 0){ |
| 1959 |
byte xval = bb.get();
|
| 1960 |
xlen--; |
| 1961 |
if(xval == 0){ |
| 1962 |
if(xlen < 1) |
| 1963 |
break;
|
| 1964 |
byte val = bb.get();
|
| 1965 |
xlen--; |
| 1966 |
if(r13){
|
| 1967 |
if(xlen < 1) |
| 1968 |
break;
|
| 1969 |
byte codePage = bb.get();
|
| 1970 |
xlen--; |
| 1971 |
}//if r13
|
| 1972 |
if(xlen < val)
|
| 1973 |
break;
|
| 1974 |
byte[] strByte = new byte[val]; |
| 1975 |
bb.get(strByte); |
| 1976 |
xlen -= val; |
| 1977 |
extData += new String(strByte); |
| 1978 |
}//if xval == 0
|
| 1979 |
else if(xval == 1 || xval == 3 || xval == 70){ |
| 1980 |
if(xlen < 2) |
| 1981 |
break;
|
| 1982 |
short val = bb.getShort();
|
| 1983 |
extData += val; |
| 1984 |
xlen += 2;
|
| 1985 |
}else if(xval == 2){ |
| 1986 |
if(xlen < 1) |
| 1987 |
break;
|
| 1988 |
byte val = bb.get();
|
| 1989 |
if(val == 0) |
| 1990 |
extData += "{";
|
| 1991 |
else if(val == 1) |
| 1992 |
extData += "}";
|
| 1993 |
else
|
| 1994 |
System.out.println("Byte no esperado:"+val); |
| 1995 |
}else if(xval == 5){ |
| 1996 |
if(xlen < 8) |
| 1997 |
break;
|
| 1998 |
long val = bb.getLong();
|
| 1999 |
//probably it is an entity handle
|
| 2000 |
xlen -= 8;
|
| 2001 |
}else if (xval == 40 || xval == 41 || xval == 42){ |
| 2002 |
if (xlen < 8) |
| 2003 |
break;
|
| 2004 |
double val = bb.getDouble();
|
| 2005 |
xlen -= 8;
|
| 2006 |
extData += val; |
| 2007 |
|
| 2008 |
}else if (xval == 10 || xval == 11 || xval == 12 || xval == 13){ |
| 2009 |
//13 not in R12 spec, is in R13/R14
|
| 2010 |
if(xlen < 24) |
| 2011 |
break;
|
| 2012 |
Object point = getPoint(true); |
| 2013 |
extData += point.toString(); |
| 2014 |
xlen -= 24;
|
| 2015 |
}else if(xval == 71){ |
| 2016 |
if (xlen < 4) |
| 2017 |
break;
|
| 2018 |
int val = bb.getInt();
|
| 2019 |
extData += val; |
| 2020 |
xlen -= 4;
|
| 2021 |
}else
|
| 2022 |
xlen = 0;
|
| 2023 |
return extData;
|
| 2024 |
} |
| 2025 |
/*
|
| 2026 |
|
| 2027 |
|
| 2028 |
|
| 2029 |
elif _xval == 71:
|
| 2030 |
if _xlen < 4: break
|
| 2031 |
_val = struct.unpack('<l', handle.read(4))[0]
|
| 2032 |
_data.append(_val)
|
| 2033 |
_xlen = _xlen - 4
|
| 2034 |
else:
|
| 2035 |
_xlen = 0
|
| 2036 |
return _data
|
| 2037 |
* */
|
| 2038 |
return null; |
| 2039 |
} |
| 2040 |
|
| 2041 |
|
| 2042 |
|
| 2043 |
/**
|
| 2044 |
* @param b
|
| 2045 |
* @return
|
| 2046 |
*/
|
| 2047 |
private double[] getPoint(boolean b) { |
| 2048 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 2049 |
double x = bb.getDouble();
|
| 2050 |
double y = bb.getDouble();
|
| 2051 |
double z = 0d; |
| 2052 |
if(b){
|
| 2053 |
z = bb.getDouble(); |
| 2054 |
} |
| 2055 |
return new double[]{x, y, z}; |
| 2056 |
} |
| 2057 |
|
| 2058 |
|
| 2059 |
|
| 2060 |
//TODO Que se hacen con los registros que se leen???
|
| 2061 |
private void readBlockTable(Dwg12Table blockTable) { |
| 2062 |
short size = blockTable.s1;
|
| 2063 |
int numRecords = blockTable.i1;
|
| 2064 |
int start = blockTable.i2;
|
| 2065 |
|
| 2066 |
int begin = -1; |
| 2067 |
int end = -1; |
| 2068 |
|
| 2069 |
for(int i = 0; i < numRecords; i++){ |
| 2070 |
|
| 2071 |
begin = start + i * size; |
| 2072 |
bb.position(begin); |
| 2073 |
|
| 2074 |
end = begin + size - 2;
|
| 2075 |
|
| 2076 |
byte flag = bb.get();
|
| 2077 |
byte[] nameByte = new byte[32]; |
| 2078 |
bb.get(nameByte); |
| 2079 |
String name = new String(nameByte).trim(); |
| 2080 |
|
| 2081 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 2082 |
|
| 2083 |
short used = bb.getShort();
|
| 2084 |
byte b1 = bb.get();
|
| 2085 |
short w1 = bb.getShort();
|
| 2086 |
byte b2 = bb.get();
|
| 2087 |
|
| 2088 |
short w3 = bb.getShort();
|
| 2089 |
short crc = bb.getShort();
|
| 2090 |
|
| 2091 |
int offset = end - bb.position();
|
| 2092 |
if(offset > 0) |
| 2093 |
bb.position(bb.position() + end); |
| 2094 |
|
| 2095 |
Block block = new Block();
|
| 2096 |
block.flag = flag; |
| 2097 |
block.name = name; |
| 2098 |
block.used = used; |
| 2099 |
block.b1 = b1; |
| 2100 |
block.w1 = w1; |
| 2101 |
block.b2 = b2; |
| 2102 |
block.w3 = w3; |
| 2103 |
block.crc = crc; |
| 2104 |
blocks.add(block); |
| 2105 |
}//for
|
| 2106 |
byte[] crc32 = new byte[32]; |
| 2107 |
bb.get(crc32); |
| 2108 |
} |
| 2109 |
|
| 2110 |
public void readHeader(){ |
| 2111 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 2112 |
short w1 = bb.getShort();
|
| 2113 |
double[] inBase = getPoint(true); |
| 2114 |
double[] extMin = getPoint(true); |
| 2115 |
dwgFile.setHeader("MSPACE_EXTMIN", extMin);
|
| 2116 |
double[] extMax = getPoint(true); |
| 2117 |
dwgFile.setHeader("MSPACE_EXTMAX", extMax);
|
| 2118 |
double[] limMin = getPoint(false); |
| 2119 |
double[] limMax = getPoint(false); |
| 2120 |
|
| 2121 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 2122 |
double vcx = bb.getDouble();
|
| 2123 |
double vcy = bb.getDouble();
|
| 2124 |
double d3 = bb.getDouble();
|
| 2125 |
double d4 = bb.getDouble();
|
| 2126 |
|
| 2127 |
byte b1 = bb.get();
|
| 2128 |
byte b2 = bb.get();
|
| 2129 |
|
| 2130 |
double sx = bb.getDouble();
|
| 2131 |
double sy = bb.getDouble();
|
| 2132 |
|
| 2133 |
bb.order(ByteOrder.nativeOrder());
|
| 2134 |
byte[] b56 = new byte[56]; |
| 2135 |
bb.get(b56); |
| 2136 |
|
| 2137 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 2138 |
double d7 = bb.getDouble();
|
| 2139 |
double d8 = bb.getDouble();
|
| 2140 |
double d9 = bb.getDouble();
|
| 2141 |
|
| 2142 |
bb.order(ByteOrder.nativeOrder());
|
| 2143 |
byte[] b18 = new byte[18]; |
| 2144 |
bb.get(b18); |
| 2145 |
|
| 2146 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 2147 |
double d10 = bb.getDouble();
|
| 2148 |
|
| 2149 |
int at = bb.position();
|
| 2150 |
|
| 2151 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 2152 |
short w2 = bb.getShort();
|
| 2153 |
short w3 = bb.getShort();
|
| 2154 |
|
| 2155 |
bb.order(ByteOrder.nativeOrder());
|
| 2156 |
byte[] b44 = new byte[44]; |
| 2157 |
bb.get(b44); |
| 2158 |
|
| 2159 |
at = bb.position(); |
| 2160 |
|
| 2161 |
bb.order(ByteOrder.nativeOrder());
|
| 2162 |
byte[] b354 = new byte[354]; |
| 2163 |
bb.get(b354); |
| 2164 |
|
| 2165 |
if( (b354[0] == 0x61) && (b354[1] == 0x63) && (b354[2] == 0x61 ) && (b354[2] == 0x64 )) |
| 2166 |
System.out.println("Encontrada la cadena 'acad' al comienzo del bloque de 354 bytes"); |
| 2167 |
|
| 2168 |
bb.position(0x3ef);
|
| 2169 |
} |
| 2170 |
|
| 2171 |
class Dwg12Table{ |
| 2172 |
short s1;
|
| 2173 |
int i1;
|
| 2174 |
int i2;
|
| 2175 |
} |
| 2176 |
|
| 2177 |
public Dwg12Table getTable(){
|
| 2178 |
|
| 2179 |
Dwg12Table solution = null;
|
| 2180 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 2181 |
|
| 2182 |
short s1 = bb.getShort();
|
| 2183 |
int i1 = bb.getInt();
|
| 2184 |
int i2 = bb.getInt();
|
| 2185 |
|
| 2186 |
solution = new Dwg12Table();
|
| 2187 |
solution.s1 = s1; |
| 2188 |
solution.i1 = i1; |
| 2189 |
solution.i2 = i2; |
| 2190 |
return solution;
|
| 2191 |
} |
| 2192 |
|
| 2193 |
|
| 2194 |
class Dwg12TableTest{ |
| 2195 |
short s1, s2, s3;
|
| 2196 |
int i1;
|
| 2197 |
} |
| 2198 |
public Dwg12TableTest getTableTest(){
|
| 2199 |
Dwg12TableTest solution = null;
|
| 2200 |
|
| 2201 |
|
| 2202 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
| 2203 |
short s1 = bb.getShort();
|
| 2204 |
short s2 = bb.getShort();
|
| 2205 |
short s3 = bb.getShort();
|
| 2206 |
int i1 = bb.getInt();
|
| 2207 |
|
| 2208 |
solution = new Dwg12TableTest();
|
| 2209 |
solution.s1 = s1; |
| 2210 |
solution.s2 = s2; |
| 2211 |
solution.s3 = s3; |
| 2212 |
solution.i1 = i1; |
| 2213 |
|
| 2214 |
return solution;
|
| 2215 |
} |
| 2216 |
|
| 2217 |
/* (non-Javadoc)
|
| 2218 |
* @see com.iver.cit.jdwglib.dwg.readers.IDwgFileReader#readObjectHeader(int[], int, com.iver.cit.jdwglib.dwg.DwgObject)
|
| 2219 |
*/
|
| 2220 |
public int readObjectHeader(int[] data, int offset, DwgObject dwgObject) throws RuntimeException, CorruptedDwgEntityException { |
| 2221 |
return 0; |
| 2222 |
} |
| 2223 |
|
| 2224 |
/* (non-Javadoc)
|
| 2225 |
* @see com.iver.cit.jdwglib.dwg.readers.IDwgFileReader#readObjectTailer(int[], int, com.iver.cit.jdwglib.dwg.DwgObject)
|
| 2226 |
*/
|
| 2227 |
public int readObjectTailer(int[] data, int offset, DwgObject dwgObject) throws RuntimeException, CorruptedDwgEntityException { |
| 2228 |
return 0; |
| 2229 |
} |
| 2230 |
|
| 2231 |
} |