root / trunk / libraries / libDwg / src / com / iver / cit / jdwglib / dwg / readers / DwgFileV12Reader.java @ 10632
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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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/*
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* En Python:
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* if _version != 'AC1009':
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if _version == 'AC1010':
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r13 = True
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else:
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print "unknown version"
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*
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* */
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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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System.out.println(headerStr);
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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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double d51 = bb.getDouble();
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double[] pt13 = getPoint(false); |
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double[] pt14 = getPoint(false); |
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double[] pt15 = getPoint(false); |
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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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|
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private void readUcsTable(Dwg12Table ucsTable) { |
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short size = ucsTable.s1;
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int numRecs = ucsTable.i1;
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int start = ucsTable.i2;
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int end = -1; |
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bb.position(start); |
518 |
for(int i = 0; i < numRecs; i++){ |
519 |
end = bb.position() + size; |
520 |
|
521 |
byte flag = bb.get();
|
522 |
byte[] nameBytes = new byte[32]; |
523 |
bb.get(nameBytes); |
524 |
String name = new String(nameBytes); |
525 |
|
526 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
527 |
short used = bb.getShort();
|
528 |
|
529 |
double[] pt10 = getPoint(true); |
530 |
double[] pt11 = getPoint(true); |
531 |
double[] pt12 = getPoint(true); |
532 |
|
533 |
|
534 |
|
535 |
int offset = end - bb.position();
|
536 |
if(offset > 0) |
537 |
bb.position(bb.position() + offset); |
538 |
|
539 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
540 |
short crc = bb.getShort();
|
541 |
} |
542 |
byte[] crc32 = new byte[32]; |
543 |
bb.get(crc32); |
544 |
|
545 |
|
546 |
} |
547 |
|
548 |
|
549 |
|
550 |
private void readViewTable(Dwg12Table viewTable) { |
551 |
short size = viewTable.s1;
|
552 |
int numRecs = viewTable.i1;
|
553 |
int start = viewTable.i2;
|
554 |
int end = -1; |
555 |
bb.position(start); |
556 |
for(int i = 0; i < numRecs; i++){ |
557 |
end = bb.position() + size; |
558 |
|
559 |
byte flag = bb.get();
|
560 |
byte[] nameBytes = new byte[32]; |
561 |
bb.get(nameBytes); |
562 |
String name = new String(nameBytes); |
563 |
|
564 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
565 |
short used = bb.getShort();
|
566 |
double db40 = bb.getDouble();
|
567 |
|
568 |
double[] pt10 = getPoint(false); |
569 |
|
570 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
571 |
double db41 = bb.getDouble();
|
572 |
|
573 |
double[] pt11 = getPoint(true); |
574 |
|
575 |
double[] pt12 = getPoint(true); |
576 |
|
577 |
|
578 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
579 |
short w71 = bb.getShort();
|
580 |
double db42 = bb.getDouble();
|
581 |
double db43 = bb.getDouble();
|
582 |
double db44 = bb.getDouble();
|
583 |
double db50 = bb.getDouble();
|
584 |
|
585 |
int offset = end - bb.position();
|
586 |
if(offset > 0) |
587 |
bb.position(bb.position() + offset); |
588 |
|
589 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
590 |
short crc = bb.getShort();
|
591 |
|
592 |
|
593 |
} |
594 |
byte[] crc32 = new byte[32]; |
595 |
bb.get(crc32); |
596 |
} |
597 |
|
598 |
|
599 |
|
600 |
private void readLTypeTable(Dwg12Table lineTypeTable) { |
601 |
short size = lineTypeTable.s1;
|
602 |
int numRecs = lineTypeTable.i1;
|
603 |
int start = lineTypeTable.i2;
|
604 |
int end = -1; |
605 |
bb.position(start); |
606 |
for(int i = 0; i < numRecs; i++){ |
607 |
end = bb.position() + size; |
608 |
byte flag = bb.get();
|
609 |
byte[] nameBytes = new byte[32]; |
610 |
bb.get(nameBytes); |
611 |
String name = new String(nameBytes); |
612 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
613 |
short w1 = bb.getShort();
|
614 |
|
615 |
byte[] s1 = new byte[48]; |
616 |
bb.get(s1); |
617 |
String s1name = new String(s1); |
618 |
|
619 |
bb.order(ByteOrder.nativeOrder());
|
620 |
byte b1 = bb.get();
|
621 |
byte b2 = bb.get();
|
622 |
|
623 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
624 |
double[] doubles = new double[13]; |
625 |
for(int j = 0; j < 13; j++){ |
626 |
doubles[j] = bb.getDouble(); |
627 |
} |
628 |
|
629 |
short crc = bb.getShort();
|
630 |
|
631 |
int offset = end - bb.position();
|
632 |
if(offset > 0) |
633 |
bb.position(bb.position() + offset); |
634 |
} |
635 |
byte[] crc32 = new byte[32]; |
636 |
bb.get(crc32); |
637 |
} |
638 |
|
639 |
|
640 |
|
641 |
/**
|
642 |
* @param styleTable
|
643 |
*/
|
644 |
private void readStyleTable(Dwg12Table styleTable) { |
645 |
short size = styleTable.s1;
|
646 |
int numRecs = styleTable.i1;
|
647 |
int start = styleTable.i2;
|
648 |
int end = -1; |
649 |
bb.position(start); |
650 |
for(int i = 0; i < numRecs; i++){ |
651 |
end = bb.position() + size; |
652 |
byte flag = bb.get();
|
653 |
byte[] nameBytes = new byte[32]; |
654 |
bb.get(nameBytes); |
655 |
String name = new String(nameBytes); |
656 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
657 |
short w1 = bb.getShort();
|
658 |
double d1 = bb.getDouble();
|
659 |
double d2 = bb.getDouble();
|
660 |
double d3 = bb.getDouble();
|
661 |
byte b1 = bb.get();
|
662 |
double d4 = bb.getDouble();
|
663 |
|
664 |
byte[] s1 = new byte[128]; |
665 |
bb.get(s1); |
666 |
|
667 |
short crc = bb.getShort();
|
668 |
int offset = end - bb.position();
|
669 |
if(offset > 0) |
670 |
bb.position(bb.position() + offset); |
671 |
} |
672 |
byte[] crc32 = new byte[32]; |
673 |
bb.get(crc32); |
674 |
} |
675 |
|
676 |
|
677 |
|
678 |
/**
|
679 |
* @param layerTable
|
680 |
*/
|
681 |
private void readLayerTable(Dwg12Table layerTable) { |
682 |
short size = layerTable.s1;
|
683 |
int numR = layerTable.i1;
|
684 |
int start = layerTable.i2;
|
685 |
|
686 |
int begin = -1; |
687 |
int end = -1; |
688 |
|
689 |
DwgLayer layer = null;
|
690 |
for(int i = 0; i < numR; i++){ |
691 |
begin = start + i * size; |
692 |
bb.position(begin); |
693 |
end = begin + size - 2;
|
694 |
|
695 |
layer = new DwgLayer(index);
|
696 |
index++; |
697 |
|
698 |
byte flag = bb.get();
|
699 |
/*
|
700 |
+=====================================================+
|
701 |
| Flag bit | Meaning |
|
702 |
| value | |
|
703 |
|----------|------------------------------------------|
|
704 |
| 1 | If set, layer is frozen |
|
705 |
|----------|------------------------------------------|
|
706 |
| 2 | If set, layer is frozen by default in |
|
707 |
| | new Viewports |
|
708 |
|----------|------------------------------------------|
|
709 |
| 4 | If set, layer is locked |
|
710 |
+-----------------------------------------------------+
|
711 |
* */
|
712 |
if((flag & 0x1) > 0){ |
713 |
layer.setFrozen(true);
|
714 |
} |
715 |
if((flag & 0x2) > 0){ |
716 |
layer.setFrozenInNew(true);
|
717 |
} |
718 |
if((flag & 0x4) > 0){ |
719 |
layer.setLocked(true);
|
720 |
} |
721 |
|
722 |
byte[] nameByte = new byte[32]; |
723 |
bb.get(nameByte); |
724 |
String name = new String(nameByte).trim(); |
725 |
layer.setName(name); |
726 |
|
727 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
728 |
short used = bb.getShort();
|
729 |
short color = bb.getShort();
|
730 |
layer.setColor(color); |
731 |
short style = bb.getShort();
|
732 |
short crc = bb.getShort();
|
733 |
|
734 |
//TODO Vemos si el indice que ocupa la layer en la tabla
|
735 |
//de layers se corresponde con el valor short de las entidades
|
736 |
//graficas
|
737 |
DwgHandleReference handle = new DwgHandleReference(0x5, i); |
738 |
layer.setHandle(handle); |
739 |
dwgFile.addDwgObject(layer); |
740 |
|
741 |
|
742 |
int offset = end - bb.position();
|
743 |
if(offset > 0) |
744 |
bb.position(bb.position() + offset); |
745 |
|
746 |
} |
747 |
byte[] crc32 = new byte[32]; |
748 |
bb.get(crc32); |
749 |
} |
750 |
|
751 |
|
752 |
interface EntityReader{ |
753 |
void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj); |
754 |
} |
755 |
|
756 |
/**
|
757 |
* In DWG 12 version, some kind of objects (Polylines and Vertex) cannot be
|
758 |
* instanciated until the EntityReader has readed some stuff (flags and so)
|
759 |
* from the file.
|
760 |
*
|
761 |
* DefferedEntityReader has the responsability to create DwgObject instances,
|
762 |
* and it has the precondition that DwgObject parameter of its method read must
|
763 |
* be null.
|
764 |
* */
|
765 |
abstract class DefferedEntityReader implements EntityReader{ |
766 |
abstract DwgObject getDwgObject(int index); |
767 |
|
768 |
public void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj){ |
769 |
if(dwgObj != null) |
770 |
throw new RuntimeException("DefferedEntityReader es el encargado de construir los objetos, debe recibirlos a null"); |
771 |
} |
772 |
|
773 |
} |
774 |
|
775 |
class LineReader implements EntityReader{ |
776 |
public void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj) { |
777 |
if(! (dwgObj instanceof DwgLine)) |
778 |
throw new RuntimeException("No es entidad LINE"); |
779 |
DwgLine line = (DwgLine) dwgObj; |
780 |
|
781 |
boolean zflag = true; |
782 |
if( (flags & 0x4) > 0) |
783 |
zflag = false;
|
784 |
|
785 |
double[] pt10 = getPoint(zflag); |
786 |
double[] pt11 = getPoint(zflag); |
787 |
|
788 |
line.setP1(pt10); |
789 |
line.setP2(pt11); |
790 |
|
791 |
if((opts & 0x1) > 0){ |
792 |
double[] pt210 = getPoint(true); |
793 |
line.setExtrusion(pt210); |
794 |
} |
795 |
|
796 |
if((opts & 0x2) > 0){ |
797 |
/*
|
798 |
* This field is only found in DWG12 prev
|
799 |
* files. Since DWG 12, elevation is saved
|
800 |
* in third coordinate of points.
|
801 |
*
|
802 |
* */
|
803 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
804 |
double db38 = bb.getDouble();
|
805 |
line.getP1()[2] = db38;
|
806 |
line.getP2()[2] = db38;
|
807 |
} |
808 |
} |
809 |
} |
810 |
|
811 |
|
812 |
|
813 |
class PointReader implements EntityReader{ |
814 |
public void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj) { |
815 |
if(! (dwgObj instanceof DwgPoint)) |
816 |
throw new RuntimeException("No es entidad POINT"); |
817 |
DwgPoint point = (DwgPoint) dwgObj; |
818 |
boolean zflag = true; |
819 |
if((flags & 0x4) > 0) |
820 |
zflag = false;
|
821 |
double[] pt10 = getPoint(zflag); |
822 |
point.setPoint(pt10); |
823 |
|
824 |
if((opts & 0x1) > 0){ |
825 |
double[] pt210 = getPoint(true); |
826 |
point.setExtrusion(pt210); |
827 |
} |
828 |
|
829 |
if((opts & 0x2) > 0){ |
830 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
831 |
double db38 = bb.getDouble();
|
832 |
point.getPoint()[2] = db38;
|
833 |
} |
834 |
} |
835 |
} |
836 |
|
837 |
|
838 |
class CircleReader implements EntityReader{ |
839 |
public void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj) { |
840 |
if(! (dwgObj instanceof DwgCircle)) |
841 |
throw new RuntimeException("No es entidad CIRCLE"); |
842 |
DwgCircle circle = (DwgCircle) dwgObj; |
843 |
|
844 |
boolean zflag = true; |
845 |
if((flags & 0x4) > 0) |
846 |
zflag = false;
|
847 |
double[] pt10 = getPoint(zflag); |
848 |
circle.setCenter(pt10); |
849 |
|
850 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
851 |
double d40 = bb.getDouble();
|
852 |
circle.setRadius(d40); |
853 |
|
854 |
double[] pt210 = null; |
855 |
if((opts & 0x1) > 0){ |
856 |
pt210 = getPoint(true);
|
857 |
|
858 |
}else{
|
859 |
pt210 = new double[]{0,0,1}; |
860 |
} |
861 |
circle.setExtrusion(pt210); |
862 |
if((opts & 0x2) > 0){ |
863 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
864 |
double db38 = bb.getDouble();
|
865 |
circle.getCenter()[2] = db38;
|
866 |
} |
867 |
} |
868 |
} |
869 |
|
870 |
|
871 |
|
872 |
class ShapeReader implements EntityReader{ |
873 |
public void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj) { |
874 |
|
875 |
//TODO POR IMPLEMENTAR DwgShape (referencia a un
|
876 |
//fichero de texto)
|
877 |
|
878 |
double[] pt10 = getPoint(false); |
879 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
880 |
short w2 = bb.getShort();
|
881 |
if((opts & 0x1) > 0){ |
882 |
double[] pt210 = getPoint(true); |
883 |
} |
884 |
if((opts & 0x2) > 0){ |
885 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
886 |
double db38 = bb.getDouble();
|
887 |
} |
888 |
} |
889 |
} |
890 |
|
891 |
public String getString(){ |
892 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
893 |
short len = bb.getShort();
|
894 |
byte[] bytes = new byte[len]; |
895 |
bb.order(ByteOrder.nativeOrder());
|
896 |
bb.get(bytes); |
897 |
return new String(bytes); |
898 |
} |
899 |
|
900 |
|
901 |
class TextReader implements EntityReader{ |
902 |
public void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj) { |
903 |
|
904 |
if(! (dwgObj instanceof DwgText)) |
905 |
throw new RuntimeException("No es entidad TEXT"); |
906 |
DwgText txt = (DwgText) dwgObj; |
907 |
|
908 |
|
909 |
double[] pt10 = getPoint(false); |
910 |
txt.setInsertionPoint(new Point2D.Double(pt10[0], pt10[1])); |
911 |
|
912 |
|
913 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
914 |
double db40 = bb.getDouble();
|
915 |
txt.setHeight(db40); |
916 |
|
917 |
|
918 |
|
919 |
String text = getString();
|
920 |
txt.setText(text); |
921 |
if((opts & 0x1) > 0){ |
922 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
923 |
double db50 = bb.getDouble();
|
924 |
txt.setRotationAngle(db50); |
925 |
} |
926 |
if((opts & 0x2) > 0){ |
927 |
double db41 = bb.getDouble();
|
928 |
txt.setWidthFactor(db41);//TODO 41 es width factor seguro?
|
929 |
} |
930 |
if((opts & 0x4) > 0){ |
931 |
double db51 = bb.getDouble();
|
932 |
txt.setObliqueAngle(db51); |
933 |
} |
934 |
if((opts & 0x8) > 0){ |
935 |
byte b7 = bb.get();
|
936 |
} |
937 |
if((opts & 0x10) > 0){ |
938 |
byte b71 = bb.get();
|
939 |
//parametros de mirroring
|
940 |
txt.setGeneration(b71); |
941 |
} |
942 |
if((opts & 0x20) > 0){ |
943 |
byte b72 = bb.get();
|
944 |
txt.setHalign(b72); |
945 |
} |
946 |
if((opts & 0x40) > 0){ |
947 |
double[] pt11 = getPoint(false); |
948 |
txt.setAlignmentPoint(new Point2D.Double(pt11[0], pt11[1])); |
949 |
} |
950 |
if((opts & 0x100) > 0){ |
951 |
byte b73 = bb.get();
|
952 |
txt.setValign(b73); |
953 |
} |
954 |
|
955 |
//TODO La especificaci?n DXF 12 dice que la extrusion
|
956 |
//codigos DXF 210, 220, 230 se aplica sobre:
|
957 |
/*
|
958 |
Line, Point, Circle, Shape, Text, Arc, Trace,
|
959 |
Solid, Block Reference, Polyline,
|
960 |
Dimension, Attribute, and Attribute Definition entity
|
961 |
|
962 |
Pero aqu? no aparece por ningun lado la extrusion
|
963 |
* */
|
964 |
double[] ext = new double[]{0, 0, 1}; |
965 |
txt.setExtrusion(ext); |
966 |
} |
967 |
} |
968 |
|
969 |
|
970 |
class ArcReader implements EntityReader{ |
971 |
public void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj) { |
972 |
if(! (dwgObj instanceof DwgArc)) |
973 |
throw new RuntimeException("No es entidad ARC"); |
974 |
DwgArc arc = (DwgArc) dwgObj; |
975 |
|
976 |
double[] pt10 = getPoint(false); |
977 |
arc.setCenter(pt10); |
978 |
|
979 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
980 |
double d40 = bb.getDouble();
|
981 |
arc.setRadius(d40); |
982 |
|
983 |
double d50 = bb.getDouble();
|
984 |
arc.setInitAngle(d50); |
985 |
|
986 |
double d51 = bb.getDouble();
|
987 |
arc.setEndAngle(51);
|
988 |
|
989 |
double[] pt210 = null; |
990 |
if((opts & 0x1) > 0){ |
991 |
pt210 = getPoint(true);
|
992 |
arc.setExtrusion(pt210); |
993 |
}else{
|
994 |
pt210 = new double[]{1, 0, 0}; |
995 |
} |
996 |
if((opts & 0x2) > 0){ |
997 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
998 |
double db38 = bb.getDouble();
|
999 |
arc.getCenter()[2] = db38;
|
1000 |
} |
1001 |
} |
1002 |
} |
1003 |
|
1004 |
|
1005 |
|
1006 |
class TraceReader implements EntityReader{ |
1007 |
public void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj) { |
1008 |
//TODO Implementar DwgTrace
|
1009 |
double[] pt10 = getPoint(false); |
1010 |
double[] pt11 = getPoint(false); |
1011 |
double[] pt12 = getPoint(false); |
1012 |
double[] pt13 = getPoint(false); |
1013 |
if((opts & 0x1) > 0){ |
1014 |
double[] pt210 = getPoint(true); |
1015 |
} |
1016 |
if((opts & 0x2) > 0){ |
1017 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
1018 |
double db38 = bb.getDouble();
|
1019 |
} |
1020 |
} |
1021 |
} |
1022 |
|
1023 |
class SolidReader implements EntityReader{ |
1024 |
public void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj) { |
1025 |
if(! (dwgObj instanceof DwgSolid)) |
1026 |
throw new RuntimeException("No es entidad SOLID"); |
1027 |
DwgSolid solid = (DwgSolid) dwgObj; |
1028 |
|
1029 |
|
1030 |
|
1031 |
double[] pt11 = getPoint(false); |
1032 |
solid.setCorner1(pt11); |
1033 |
|
1034 |
double[] pt12 = getPoint(false); |
1035 |
solid.setCorner2(pt12); |
1036 |
|
1037 |
double[] pt13 = getPoint(false); |
1038 |
solid.setCorner3(pt13); |
1039 |
|
1040 |
double[] pt14 = getPoint(false); |
1041 |
solid.setCorner4(pt14); |
1042 |
|
1043 |
|
1044 |
if((opts & 0x1) > 0){ |
1045 |
double[] pt210 = getPoint(true); |
1046 |
solid.setExtrusion(pt210); |
1047 |
} |
1048 |
if((opts & 0x2) > 0){ |
1049 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
1050 |
double db38 = bb.getDouble();
|
1051 |
solid.getCorner1()[2] = db38;
|
1052 |
solid.getCorner2()[2] = db38;
|
1053 |
solid.getCorner3()[2] = db38;
|
1054 |
solid.getCorner4()[2] = db38;
|
1055 |
} |
1056 |
|
1057 |
solid.setExtrusion(new double[]{0, 0, 1}); |
1058 |
} |
1059 |
} |
1060 |
|
1061 |
|
1062 |
private Block getBlock(String blockName){ |
1063 |
for(int i = 0; i < blocks.size(); i++){ |
1064 |
Block block = (Block) blocks.get(i); |
1065 |
if(block.name.equalsIgnoreCase(blockName)){
|
1066 |
return block;
|
1067 |
} |
1068 |
} |
1069 |
return null; |
1070 |
} |
1071 |
|
1072 |
|
1073 |
|
1074 |
class BlkReader implements EntityReader{ |
1075 |
public void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj) { |
1076 |
if(! (dwgObj instanceof DwgBlockHeader)) |
1077 |
throw new RuntimeException("No es entidad BLOCK"); |
1078 |
DwgBlockHeader blk = (DwgBlockHeader) dwgObj; |
1079 |
|
1080 |
|
1081 |
double[] pt10 = getPoint(false); |
1082 |
blk.setBasePoint(pt10); |
1083 |
String blockName = getString();
|
1084 |
|
1085 |
Block block = getBlock(blockName); |
1086 |
if(block == null){ |
1087 |
System.out.println(blockName+" no encontrado en la tabla de bloques"); |
1088 |
} |
1089 |
|
1090 |
//TODO En DWG 12 no se distingue Block de BlockHeader, en ulteriores
|
1091 |
//versiones si
|
1092 |
//REVISAR EL CASO DE LOS BLOQUES
|
1093 |
|
1094 |
|
1095 |
if((opts & 0x2) > 0) |
1096 |
{ |
1097 |
//puede ser que se trate de referencias
|
1098 |
//externas??
|
1099 |
String s3 = getString();
|
1100 |
} |
1101 |
|
1102 |
if((flags & 1) > 0){ |
1103 |
blk.setAnonymous(true);
|
1104 |
} |
1105 |
|
1106 |
if((flags & 2) > 0){ |
1107 |
blk.setHasAttrs(true);
|
1108 |
} |
1109 |
|
1110 |
if((flags & 4) > 0){ |
1111 |
blk.setBlkIsXRef(true);
|
1112 |
} |
1113 |
|
1114 |
if((flags & 16) > 0){ |
1115 |
blk.setXdep(true);
|
1116 |
} |
1117 |
|
1118 |
if((flags & 32) > 0){ |
1119 |
blk.setXRefOverLaid(true);
|
1120 |
} |
1121 |
|
1122 |
if((flags & 64) > 0){ |
1123 |
blk.setLoaded(true);
|
1124 |
} |
1125 |
|
1126 |
|
1127 |
/*
|
1128 |
|
1129 |
1 | This is an anonymous Block generated by |
|
1130 |
| | hatching, associative dimensioning, other |
|
1131 |
| | internal operations, or an application |
|
1132 |
|----------|--------------------------------------------|
|
1133 |
| 2 | This Block has Attributes |
|
1134 |
|----------|--------------------------------------------|
|
1135 |
| 4 | This Block is an external reference (Xref) |
|
1136 |
|----------|--------------------------------------------|
|
1137 |
| 8 | not used |
|
1138 |
|----------|--------------------------------------------|
|
1139 |
| 16 | This Block is externally dependent |
|
1140 |
|----------|--------------------------------------------|
|
1141 |
| 32 | This is a resolved external reference, or |
|
1142 |
| | dependent of an external reference |
|
1143 |
|----------|--------------------------------------------|
|
1144 |
| 64 | This definition is referenced
|
1145 |
|
1146 |
*/
|
1147 |
|
1148 |
} |
1149 |
} |
1150 |
class EndBlkReader implements EntityReader{ |
1151 |
public void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj) { |
1152 |
System.out.println("endblk"); |
1153 |
} |
1154 |
} |
1155 |
|
1156 |
class InsertReader implements EntityReader{ |
1157 |
public void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj) { |
1158 |
if(! (dwgObj instanceof DwgInsert)) |
1159 |
throw new RuntimeException("No es entidad INSERT"); |
1160 |
DwgInsert insert = (DwgInsert) dwgObj; |
1161 |
|
1162 |
bb.order(ByteOrder.nativeOrder());
|
1163 |
short w1 = bb.getShort();//Puede ser este el identificador de bloque??? |
1164 |
|
1165 |
double[] pt10 = getPoint(false); |
1166 |
insert.setInsertionPoint(pt10); |
1167 |
|
1168 |
|
1169 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
1170 |
|
1171 |
double x = 0d, y = 0d, z = 0d; |
1172 |
|
1173 |
if((opts & 0x1) > 0){ |
1174 |
double db41 = bb.getDouble();
|
1175 |
x = db41; |
1176 |
} |
1177 |
|
1178 |
if((opts & 0x2) > 0){ |
1179 |
double db42 = bb.getDouble();
|
1180 |
y = db42; |
1181 |
} |
1182 |
|
1183 |
if((opts & 0x4) > 0){ |
1184 |
double db43 = bb.getDouble();
|
1185 |
z = db43; |
1186 |
} |
1187 |
|
1188 |
insert.setScale(new double[]{x, y, z}); |
1189 |
|
1190 |
if((opts & 0x8) > 0){ |
1191 |
double db50 = bb.getDouble();
|
1192 |
insert.setRotation(db50); |
1193 |
} |
1194 |
|
1195 |
if((opts & 0x10) > 0){ |
1196 |
short w70 = bb.getShort();
|
1197 |
//column counts
|
1198 |
} |
1199 |
//creo que esto est? mal, y que debe poner 0x20
|
1200 |
if((opts & 0x10) > 0){ |
1201 |
short w71 = bb.getShort();
|
1202 |
//row counts
|
1203 |
} |
1204 |
|
1205 |
if((opts & 0x40) > 0){ |
1206 |
double db44 = bb.getDouble();
|
1207 |
//column spacing
|
1208 |
} |
1209 |
|
1210 |
if((opts & 0x80) > 0){ |
1211 |
double db45 = bb.getDouble();
|
1212 |
//row spacing
|
1213 |
} |
1214 |
insert.setExtrusion(new double[]{0, 0, 1}); |
1215 |
} |
1216 |
} |
1217 |
|
1218 |
class AttDefReader implements EntityReader{ |
1219 |
public void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj) { |
1220 |
double[] p10 = getPoint(false); |
1221 |
String s1 = getString();
|
1222 |
String s3 = getString();
|
1223 |
String s2 = getString();
|
1224 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
1225 |
byte b70 = bb.get();
|
1226 |
|
1227 |
if((opts & 0x1) > 0){ |
1228 |
byte b73 = bb.get();
|
1229 |
} |
1230 |
|
1231 |
if((opts & 0x2) > 0){ |
1232 |
double d50 = bb.getDouble();
|
1233 |
} |
1234 |
|
1235 |
if((opts & 0x4) > 0){ |
1236 |
double d41 = bb.getDouble();
|
1237 |
} |
1238 |
|
1239 |
if((opts & 0x8) > 0){ |
1240 |
double d42 = bb.getDouble();
|
1241 |
} |
1242 |
|
1243 |
if((opts & 0x10) > 0){ |
1244 |
byte b7 = bb.get();
|
1245 |
} |
1246 |
|
1247 |
if((opts & 0x20) > 0){ |
1248 |
byte b71 = bb.get();
|
1249 |
} |
1250 |
|
1251 |
if((opts & 0x40) > 0){ |
1252 |
byte b72 = bb.get();
|
1253 |
} |
1254 |
|
1255 |
if((opts & 0x80) > 0){ |
1256 |
double[] p11 = getPoint(false); |
1257 |
} |
1258 |
|
1259 |
if((opts & 0x100) > 0){ |
1260 |
double[] p210 = getPoint(true); |
1261 |
} |
1262 |
|
1263 |
if((opts & 0x200) > 0){ |
1264 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
1265 |
double d38 = bb.getDouble();
|
1266 |
} |
1267 |
} |
1268 |
} |
1269 |
|
1270 |
class AttribReader implements EntityReader{ |
1271 |
public void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj) { |
1272 |
double[] p10 = getPoint(false); |
1273 |
|
1274 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
1275 |
double d40 = bb.getDouble();
|
1276 |
|
1277 |
String s1 = getString();
|
1278 |
String s2 = getString();
|
1279 |
|
1280 |
if((opts & 0x1) > 0){ |
1281 |
byte b73 = bb.get();
|
1282 |
} |
1283 |
|
1284 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
1285 |
if((opts & 0x2) > 0){ |
1286 |
double d50 = bb.getDouble();
|
1287 |
} |
1288 |
|
1289 |
if((opts & 0x4) > 0){ |
1290 |
double d41 = bb.getDouble();
|
1291 |
} |
1292 |
|
1293 |
if((opts & 0x8) > 0){ |
1294 |
double d42 = bb.getDouble();
|
1295 |
} |
1296 |
|
1297 |
if((opts & 0x10) > 0){ |
1298 |
byte b7 = bb.get();
|
1299 |
} |
1300 |
|
1301 |
if((opts & 0x20) > 0){ |
1302 |
byte b71 = bb.get();
|
1303 |
} |
1304 |
|
1305 |
if((opts & 0x40) > 0){ |
1306 |
byte b72 = bb.get();
|
1307 |
} |
1308 |
|
1309 |
if((opts & 0x80) > 0){ |
1310 |
double[] p11 = getPoint(false); |
1311 |
} |
1312 |
double[] p210 = null; |
1313 |
if((opts & 0x100) > 0){ |
1314 |
p210 = getPoint(true);
|
1315 |
}else{
|
1316 |
p210 = new double[]{0, 0, 1}; |
1317 |
} |
1318 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
1319 |
if((opts & 0x200) > 0){ |
1320 |
double d38 = bb.getDouble();
|
1321 |
} |
1322 |
} |
1323 |
} |
1324 |
|
1325 |
|
1326 |
class SbEndReader implements EntityReader{ |
1327 |
public void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj) { |
1328 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
1329 |
int l = bb.getInt();
|
1330 |
} |
1331 |
} |
1332 |
|
1333 |
class PlineReader extends DefferedEntityReader{ |
1334 |
|
1335 |
/*
|
1336 |
* CURVE TYPE CONSTANTS
|
1337 |
* */
|
1338 |
final static int CLOSED = 0x01;//if line is a mesh, curve closed in M direction |
1339 |
final static int CURVE_FIT = 0x02; |
1340 |
final static int SPLINE_FIT = 0x04; |
1341 |
final static int PLINE3D = 0x08; |
1342 |
final static int MESH = 0x10; |
1343 |
final static int MESH_CLOSED = 0x20;//curve closed in N direction |
1344 |
final static int ANY_MESH = 0x30; //MESH | MESH_CLOSED |
1345 |
final static int PFACE = 0x40; |
1346 |
final static int CONT_LTYPE = 0x80; |
1347 |
|
1348 |
/*
|
1349 |
* polyline attributes
|
1350 |
* */
|
1351 |
/**
|
1352 |
* flag: curve type (CLOSED, MESH,PFACE, etc.)
|
1353 |
* */
|
1354 |
byte flag70;
|
1355 |
/**
|
1356 |
* Number of points in M direction for a Mesh,
|
1357 |
* number of vertices for a PFace polyline
|
1358 |
* */
|
1359 |
byte meshM71;
|
1360 |
/**
|
1361 |
* Number of points in N direction for a Mesh,
|
1362 |
* number of faces for a PFace polyline
|
1363 |
* */
|
1364 |
byte meshN72;
|
1365 |
double startW40;
|
1366 |
byte smoothM73;
|
1367 |
byte smoothN74;
|
1368 |
byte curveType75;
|
1369 |
|
1370 |
|
1371 |
public void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj) { |
1372 |
super.read(bb, flags, opts, dwgObj);
|
1373 |
|
1374 |
//TODO El byte 70 es el que determina el tipo de Polyline
|
1375 |
if( (opts & 0x1) > 0){ |
1376 |
flag70 = bb.get(); |
1377 |
} |
1378 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
1379 |
if( (opts & 0x2) > 0){ |
1380 |
startW40 = bb.getDouble(); |
1381 |
} |
1382 |
|
1383 |
if( (opts & 0x4) > 0){ |
1384 |
meshM71 = bb.get(); |
1385 |
} |
1386 |
|
1387 |
if( (opts & 0x8) > 0){ |
1388 |
meshN72 = bb.get(); |
1389 |
} |
1390 |
|
1391 |
if( (opts & 0x10) > 0){ |
1392 |
smoothM73 = bb.get(); |
1393 |
} |
1394 |
|
1395 |
if( (opts & 0x20) > 0){ |
1396 |
smoothN74 = bb.get(); |
1397 |
} |
1398 |
|
1399 |
if( (opts & 0x40) > 0){ |
1400 |
curveType75 = bb.get(); |
1401 |
} |
1402 |
} |
1403 |
|
1404 |
DwgObject getDwgObject(int index) {
|
1405 |
DwgObject solution = null;
|
1406 |
boolean isSpline = (flag70 & SPLINE_FIT) != 0 ? true: false; |
1407 |
if( (flag70 & PFACE) != 0){ |
1408 |
//PFacePolyline
|
1409 |
solution = new DwgPFacePolyline(index);
|
1410 |
// often made wrong, so we have to correct...TODO Revisar
|
1411 |
if(meshM71 <= 0) |
1412 |
meshM71 = 16;
|
1413 |
if(meshN72 <= 0) |
1414 |
meshN72 = 4;
|
1415 |
((DwgPFacePolyline)solution).setVertexCount(meshM71); |
1416 |
((DwgPFacePolyline)solution).setFaceCount(meshN72); |
1417 |
}else if((flag70 & ANY_MESH) != 0){ |
1418 |
//Mesh, closed or not
|
1419 |
solution = new DwgMeshPolyline(index);
|
1420 |
boolean isClosedM = (flag70 & CLOSED) != 0 ? true: false; |
1421 |
boolean isClosedN = (flag70 & MESH_CLOSED) > 0 ? true: false; |
1422 |
|
1423 |
((DwgMeshPolyline)solution).setClosedM(isClosedM); |
1424 |
((DwgMeshPolyline)solution).setClosedN(isClosedN); |
1425 |
if(isSpline){
|
1426 |
((DwgMeshPolyline)solution).setMVerticies(smoothM73); |
1427 |
((DwgMeshPolyline)solution).setNVerticies(smoothN74); |
1428 |
}else{
|
1429 |
((DwgMeshPolyline)solution).setMVerticies(meshM71); |
1430 |
((DwgMeshPolyline)solution).setNVerticies(meshN72); |
1431 |
} |
1432 |
((DwgMeshPolyline)solution).setCurveType(curveType75); |
1433 |
}else{
|
1434 |
//polyline
|
1435 |
boolean is3DPolyline = (flag70 & PLINE3D) != 0 ? true: false; |
1436 |
if(is3DPolyline)
|
1437 |
{ |
1438 |
solution = new DwgPolyline3D(index);
|
1439 |
boolean isClosed = (flag70 & CLOSED) != 0 ? true: false; |
1440 |
//for compatibility with dwg 13 and later, we use a byte flag for
|
1441 |
//closed and spline properties
|
1442 |
((DwgPolyline3D)solution).setClosedFlags(isClosed ? 0x1: 0x0); |
1443 |
((DwgPolyline3D)solution).setSplineFlags(isSpline ? 0x1: 0x0); |
1444 |
|
1445 |
}else{
|
1446 |
solution = new DwgPolyline2D(index);
|
1447 |
((DwgPolyline2D)solution).setCurveType(curveType75); |
1448 |
((DwgPolyline2D)solution).setInitWidth(startW40); |
1449 |
} |
1450 |
} |
1451 |
|
1452 |
|
1453 |
return solution;
|
1454 |
} |
1455 |
} |
1456 |
|
1457 |
class VertexReader extends DefferedEntityReader{ |
1458 |
final static int FIT_POINT = 0x01; |
1459 |
final static int TANGENT = 0x02; |
1460 |
final static int SPLINE_LINE_FIT = 0x08; |
1461 |
final static int SPLINE_CONTROL_POINT = 0x10; |
1462 |
final static int POLYLINE_3D = 0x20; |
1463 |
final static int MESH_3D = 0x40; |
1464 |
final static int PFACE_MESH = 0x80; |
1465 |
|
1466 |
/**
|
1467 |
* Coordinates of the vertex
|
1468 |
* */
|
1469 |
double[] pt10; |
1470 |
|
1471 |
/**
|
1472 |
* Start width of the vertex. If 0, it will
|
1473 |
* use the start with of the owner polyline.
|
1474 |
* */
|
1475 |
double startWidth40;
|
1476 |
/**
|
1477 |
* End width of the vertex. If 0, it will
|
1478 |
* use the end with of the owner polyline.
|
1479 |
* */
|
1480 |
double endWidth41;
|
1481 |
|
1482 |
/**
|
1483 |
* Bulge of the vertex
|
1484 |
* */
|
1485 |
double tangentDir50;
|
1486 |
|
1487 |
/**
|
1488 |
* Flag that maks what kind of vertex is:
|
1489 |
1 | Extra vertex created by curve-fitting |
|
1490 |
2 | Curve-fit tangent defined for this vertex. |
|
1491 |
| | A curve-fit tangent direction of 0 may be |
|
1492 |
| | omitted from the DXF output, but is |
|
1493 |
| | significant if this bit is set |
|
1494 |
|----------|---------------------------------------------|
|
1495 |
| 4 | Unused (never set in DXF files) |
|
1496 |
|----------|---------------------------------------------|
|
1497 |
| 8 | Spline vertex created by spline-fitting |
|
1498 |
|----------|---------------------------------------------|
|
1499 |
| 16 | Spline frame control point |
|
1500 |
|----------|---------------------------------------------|
|
1501 |
| 32 | 3D Polyline vertex |
|
1502 |
|----------|---------------------------------------------|
|
1503 |
| 64 | 3D polygon mesh vertex |
|
1504 |
|----------|---------------------------------------------|
|
1505 |
| 128 | Polyface mesh vertex |
|
1506 |
+--------------------------------------------------------+
|
1507 |
* */
|
1508 |
byte vertexFlag70;
|
1509 |
|
1510 |
|
1511 |
|
1512 |
public void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj) { |
1513 |
super.read(bb, flags, opts, dwgObj);
|
1514 |
pt10 = getPoint(false);
|
1515 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
1516 |
if((opts & 0x1) > 0){ |
1517 |
startWidth40 = bb.getDouble(); |
1518 |
} |
1519 |
if((opts & 0x2) > 0){ |
1520 |
endWidth41 = bb.getDouble(); |
1521 |
} |
1522 |
if((opts & 0x4) > 0){ |
1523 |
tangentDir50 = bb.getDouble(); |
1524 |
} |
1525 |
if((opts & 0x8) > 0){ |
1526 |
vertexFlag70 = bb.get(); |
1527 |
} |
1528 |
} |
1529 |
|
1530 |
DwgObject getDwgObject(int index) {
|
1531 |
DwgObject solution = null;
|
1532 |
if( (vertexFlag70 & PFACE_MESH) != 0){ |
1533 |
//It is a PFace Mesh Vertex
|
1534 |
if( (vertexFlag70 & MESH_3D) != 0){ |
1535 |
solution = new DwgVertexPFace(index);
|
1536 |
((DwgVertexPFace)solution).setPoint(pt10); |
1537 |
((DwgVertexPFace)solution).setFlags(vertexFlag70); |
1538 |
}else{
|
1539 |
/*
|
1540 |
azabala
|
1541 |
DXF 12 spec says:
|
1542 |
"If the Vertex defines a face of the mesh,
|
1543 |
its Vertex flags (70) group has the 128 bit
|
1544 |
set but not the 64 bit. The 10,
|
1545 |
20, and 30 (location) groups of the face entity are
|
1546 |
irrelevant and are always written as zero in a DXF file.
|
1547 |
The vertex indexes that define the mesh are given by 71,
|
1548 |
72, 73, and 74 groups, the values of which are integers
|
1549 |
specifying one of the previously defined vertices by
|
1550 |
index. If the index is negative, the edge that begins with
|
1551 |
that vertex is invisible. The first zero vertex marks the
|
1552 |
end of the vertices of the face. Since the 71 through 74
|
1553 |
groups are optional fields with default values of zero,
|
1554 |
they are present in DXF only if nonzero."
|
1555 |
But DWG 12 spec doesnt say anything about 71,72,73 and
|
1556 |
74 fields for VERTEX.
|
1557 |
* */
|
1558 |
solution = new DwgVertexPFaceFace(index);
|
1559 |
} |
1560 |
}else if( (vertexFlag70 & POLYLINE_3D) != 0){ |
1561 |
solution = new DwgVertex3D(index);
|
1562 |
((DwgVertex3D)solution).setPoint(pt10); |
1563 |
((DwgVertex3D)solution).setFlags(vertexFlag70); |
1564 |
}else{
|
1565 |
solution = new DwgVertex2D(index);
|
1566 |
((DwgVertex2D)solution).setPoint(pt10); |
1567 |
((DwgVertex2D)solution).setFlags(vertexFlag70); |
1568 |
} |
1569 |
return solution;
|
1570 |
} |
1571 |
} |
1572 |
|
1573 |
class Face3DReader implements EntityReader{ |
1574 |
public void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj) { |
1575 |
boolean zflag = false; |
1576 |
if((flags & 0x4) > 0){ |
1577 |
zflag = true;
|
1578 |
} |
1579 |
double[] pt10 = getPoint(zflag); |
1580 |
double[] pt11 = getPoint(zflag); |
1581 |
double[] pt12 = getPoint(zflag); |
1582 |
double[] pt13 = getPoint(zflag); |
1583 |
|
1584 |
} |
1585 |
} |
1586 |
|
1587 |
class DimReader implements EntityReader{ |
1588 |
public void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj) { |
1589 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
1590 |
short w1 = bb.getShort();
|
1591 |
double[] pt10 = getPoint(true); |
1592 |
double[] pt11 = getPoint(false); |
1593 |
|
1594 |
if((opts & 0x2) > 0){ |
1595 |
byte b70 = bb.get();
|
1596 |
} |
1597 |
|
1598 |
if((opts & 0x1) > 0){ |
1599 |
double[] pt12 = getPoint(true); |
1600 |
} |
1601 |
|
1602 |
if((opts & 0x4) > 0){ |
1603 |
String s1 = getString();
|
1604 |
} |
1605 |
|
1606 |
if((opts & 0x8) > 0){ |
1607 |
double[] pt13 = getPoint(true); |
1608 |
} |
1609 |
|
1610 |
if((opts & 0x10) > 0){ |
1611 |
double[] pt13 = getPoint(true); |
1612 |
} |
1613 |
|
1614 |
if((opts & 0x20) > 0){ |
1615 |
double[] pt15 = getPoint(true); |
1616 |
} |
1617 |
|
1618 |
if((opts & 0x40) > 0){ |
1619 |
double[] pt16 = getPoint(true); |
1620 |
} |
1621 |
|
1622 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
1623 |
if((opts & 0x80) > 0){ |
1624 |
double d40 = bb.getDouble();
|
1625 |
} |
1626 |
|
1627 |
if((opts & 0x100) > 0){ |
1628 |
double d50 = bb.getDouble();
|
1629 |
} |
1630 |
|
1631 |
if((opts & 0x200) > 0){ |
1632 |
double d51 = bb.getDouble();
|
1633 |
} |
1634 |
if((opts & 0x400) > 0){ |
1635 |
double d52 = bb.getDouble();
|
1636 |
} |
1637 |
if((opts & 0x800) > 0){ |
1638 |
double d53 = bb.getDouble();
|
1639 |
} |
1640 |
} |
1641 |
} |
1642 |
|
1643 |
class VPortReader implements EntityReader{ |
1644 |
public void read(ByteBuffer bb, byte flags, short opts, DwgObject dwgObj) { |
1645 |
double[] pt10 = getPoint(true); |
1646 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
1647 |
double d40 = bb.getDouble();
|
1648 |
double d41 = bb.getDouble();
|
1649 |
short w68 = bb.getShort();
|
1650 |
} |
1651 |
} |
1652 |
|
1653 |
/**
|
1654 |
* @param start
|
1655 |
* @param end
|
1656 |
*/
|
1657 |
private void readEntities(int start, int end) { |
1658 |
bb.position(start); |
1659 |
int ant = bb.position();
|
1660 |
int emax = readers.size();
|
1661 |
EntityReader reader = null;
|
1662 |
|
1663 |
/*
|
1664 |
* it isnt null until well finish to read the vertices
|
1665 |
* of a given polyline (seqend found)
|
1666 |
*
|
1667 |
*/
|
1668 |
IDwgPolyline currentPolyline = null;
|
1669 |
|
1670 |
/*
|
1671 |
* Not null when a DwgBlock is found, it will be null
|
1672 |
* when a DwgEndBlk found. While this, all entities readed
|
1673 |
* will be added to currentBlock
|
1674 |
* */
|
1675 |
DwgBlockHeader currentBlock = null;
|
1676 |
|
1677 |
while(ant < (end - 32)){ |
1678 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
1679 |
|
1680 |
byte kind = bb.get();
|
1681 |
if(kind < emax){
|
1682 |
reader = (EntityReader) readers.get(kind); |
1683 |
}//if
|
1684 |
|
1685 |
|
1686 |
//PROPERTIES COMMON TO ALL DWG 12 ENTITIES
|
1687 |
byte flag = bb.get();
|
1688 |
short lenght = bb.getShort();
|
1689 |
|
1690 |
//segun esto los dos ultimos bytes son el CRC
|
1691 |
int crcpos = ant + (lenght - 2); |
1692 |
|
1693 |
|
1694 |
short layer = bb.getShort();
|
1695 |
short opts = bb.getShort();
|
1696 |
|
1697 |
byte color = 0; |
1698 |
if ((flag & 0x1) > 0){ |
1699 |
color = bb.get(); |
1700 |
} |
1701 |
|
1702 |
byte extra = 0; |
1703 |
if ((flag & 0x40) > 0) |
1704 |
extra = bb.get(); |
1705 |
|
1706 |
|
1707 |
String xdata = null; |
1708 |
if((extra & 0x2) > 0) |
1709 |
xdata = readXdata(); |
1710 |
|
1711 |
|
1712 |
short type = 0; |
1713 |
if((flag & 0x2) > 0) |
1714 |
type = bb.getShort(); |
1715 |
|
1716 |
|
1717 |
double z = 0d; |
1718 |
if( (flag & 0x4) > 0 && (kind > 2) && (kind != 22)){ |
1719 |
z = bb.getDouble(); |
1720 |
} |
1721 |
|
1722 |
double th = 0d; |
1723 |
if((flag & 0x8) > 0){ |
1724 |
th = bb.getDouble(); |
1725 |
} |
1726 |
|
1727 |
byte[] handle = null; |
1728 |
if((flag & 0x20) > 0) |
1729 |
handle = getHandle(); |
1730 |
|
1731 |
short paper = 0; |
1732 |
if((extra & 0x4) > 0){ |
1733 |
paper = bb.getShort(); |
1734 |
} |
1735 |
|
1736 |
if(reader != null){ |
1737 |
DwgObject entity = null;
|
1738 |
|
1739 |
entity = DwgObjectFactory. |
1740 |
getInstance(). |
1741 |
create(kind, index); |
1742 |
|
1743 |
//TODO Idem con el espacio papel o el espacio modelo
|
1744 |
boolean paperSpace = false; |
1745 |
if(paper != 0){ |
1746 |
paperSpace = true;
|
1747 |
} |
1748 |
reader.read(bb, flag, opts, entity); |
1749 |
if(reader instanceof DefferedEntityReader){ |
1750 |
entity = ((DefferedEntityReader)reader).getDwgObject(index); |
1751 |
} |
1752 |
|
1753 |
if(entity instanceof IDwgPolyline){ |
1754 |
currentPolyline = (IDwgPolyline) entity; |
1755 |
} |
1756 |
else if(entity instanceof DwgSeqend){ |
1757 |
currentPolyline = null;
|
1758 |
}else if(entity instanceof DwgBlockHeader){ |
1759 |
currentBlock = (DwgBlockHeader) entity; |
1760 |
}else if(entity instanceof DwgEndblk){ |
1761 |
currentBlock = null;
|
1762 |
} |
1763 |
|
1764 |
DwgHandleReference hdl = null;
|
1765 |
/*
|
1766 |
In V12 format a handle has 2 bytes, while
|
1767 |
in later formats a hande has 4 bytes. To avoid
|
1768 |
rewriting a lot of code we are going to do some "tricks"
|
1769 |
with handles.
|
1770 |
*/
|
1771 |
if(entity instanceof DwgBlockHeader){ |
1772 |
/*
|
1773 |
* If entity is a block, in a later step we'll match
|
1774 |
* an insert with its block by handle.
|
1775 |
* In dwg 12 format, association insert-blocks is not
|
1776 |
* by handle (is from the order of the block in block table)
|
1777 |
* So here we use a little trick to avoid rewriting of
|
1778 |
* block and inserts management logic.
|
1779 |
* */
|
1780 |
int order = -1; |
1781 |
DwgBlockHeader blk = (DwgBlockHeader) entity; |
1782 |
String blockName = blk.getName();
|
1783 |
Block block = getBlock(blockName); |
1784 |
if(block != null){ |
1785 |
order = blocks.indexOf(block); |
1786 |
hdl = new DwgHandleReference(0, order); |
1787 |
}else{
|
1788 |
System.out.println("BLOQUE "+blockName+" NO EST? EN LA TABLA DE BLOQUES"); |
1789 |
bb.position(crcpos); |
1790 |
short crc = bb.getShort();
|
1791 |
continue;
|
1792 |
} |
1793 |
}else{
|
1794 |
if(handle != null){ |
1795 |
int offset = handle.hashCode();
|
1796 |
hdl = new DwgHandleReference(0, offset); |
1797 |
}else{
|
1798 |
System.out.println("HANDLE A NULL"); |
1799 |
bb.position(crcpos); |
1800 |
short crc = bb.getShort();
|
1801 |
continue;
|
1802 |
} |
1803 |
} |
1804 |
|
1805 |
entity.setColor(color); |
1806 |
entity.setType(type);//TODO Este type es el mismo que para DWG 13-14-2000?
|
1807 |
entity.setSizeInBits(lenght);//TODO Este size es el mismo que para DWG 13-14-2000?
|
1808 |
entity.setHandle(hdl); |
1809 |
/*
|
1810 |
* TODO
|
1811 |
* Parece ser que DWG 12 no gestiona las layers al igual que las
|
1812 |
* versiones sucesivas (hay que descifrar si 'layer' significa
|
1813 |
* un orden en la tabla de layers
|
1814 |
*
|
1815 |
* De ser as?, y si indexamos las layers de esta forma
|
1816 |
* (con un HandleReference de code 0x5) ser? todo homogeneo
|
1817 |
*
|
1818 |
* TODO Construir instancias de DwgLayer a partir de las entradas
|
1819 |
* de la tabla de layers, e indexarlas con un handle igual a su orden
|
1820 |
* */
|
1821 |
|
1822 |
entity.setLayerHandle(new DwgHandleReference(0x5, layer)); |
1823 |
|
1824 |
//TODO El valor de elevation en 12 es comun a todas, en 13 y ulteriores
|
1825 |
//no. ver que se hace
|
1826 |
// entity.setZ(z);
|
1827 |
|
1828 |
List xdataAsList = new ArrayList(); |
1829 |
xdataAsList.add(xdata); |
1830 |
entity.setExtendedData(xdataAsList); |
1831 |
|
1832 |
//TODO con thickness tenemos el mismo problema que con
|
1833 |
//elevation. En dwg 12 es comun a todos
|
1834 |
// entity.setThickness(th);
|
1835 |
|
1836 |
ant = bb.position(); |
1837 |
// if(ant < crcpos){
|
1838 |
if(ant != crcpos){
|
1839 |
bb.position(bb.position() + (crcpos - ant)); |
1840 |
} |
1841 |
short crc = bb.getShort();
|
1842 |
|
1843 |
if( (entity instanceof IDwgVertex) && (currentPolyline != null)){ |
1844 |
currentPolyline.addVertex((IDwgVertex) entity); |
1845 |
|
1846 |
}else if( (entity instanceof IDwgBlockMember) && (currentBlock != null)){ |
1847 |
currentBlock.addObject(entity); |
1848 |
} else{
|
1849 |
// if(! paperSpace)//TODO solo a?adimos las entidades en espacio modelo????
|
1850 |
dwgFile.addDwgObject(entity); |
1851 |
} |
1852 |
}//if reader
|
1853 |
else{
|
1854 |
System.out.println("Reader a NULL. DWG 12 MAL LEIDO"); |
1855 |
System.out.println("kind = " + kind); |
1856 |
bb.position(crcpos); |
1857 |
short crc = bb.getShort();
|
1858 |
continue;
|
1859 |
|
1860 |
} |
1861 |
ant = bb.position(); |
1862 |
// byte[] crc32 = new byte[32];
|
1863 |
// bb.get(crc32);
|
1864 |
index++; |
1865 |
}//while
|
1866 |
byte[] crc32 = new byte[32];//TODO va dentro o fuera del while?? |
1867 |
bb.get(crc32); |
1868 |
} |
1869 |
|
1870 |
|
1871 |
/**
|
1872 |
* @return
|
1873 |
*/
|
1874 |
private byte[] getHandle() { |
1875 |
byte[] bytes = null; |
1876 |
bb.order(ByteOrder.nativeOrder());
|
1877 |
byte len = bb.get();
|
1878 |
bytes = new byte[len]; |
1879 |
bb.get(bytes); |
1880 |
return bytes;
|
1881 |
//Ver si los handles de DWG 12 concurdan con nuestra clase
|
1882 |
//DwgHandleReference
|
1883 |
// return (5, _len) + tuple(_bytes)
|
1884 |
} |
1885 |
|
1886 |
|
1887 |
|
1888 |
/**
|
1889 |
* @return
|
1890 |
*/
|
1891 |
private String readXdata() { |
1892 |
String extData = ""; |
1893 |
short xlen = bb.getShort();
|
1894 |
while (xlen > 0){ |
1895 |
byte xval = bb.get();
|
1896 |
xlen--; |
1897 |
if(xval == 0){ |
1898 |
if(xlen < 1) |
1899 |
break;
|
1900 |
byte val = bb.get();
|
1901 |
xlen--; |
1902 |
if(r13){
|
1903 |
if(xlen < 1) |
1904 |
break;
|
1905 |
byte codePage = bb.get();
|
1906 |
xlen--; |
1907 |
}//if r13
|
1908 |
if(xlen < val)
|
1909 |
break;
|
1910 |
byte[] strByte = new byte[val]; |
1911 |
bb.get(strByte); |
1912 |
xlen -= val; |
1913 |
extData += new String(strByte); |
1914 |
}//if xval == 0
|
1915 |
else if(xval == 1 || xval == 3 || xval == 70){ |
1916 |
if(xlen < 2) |
1917 |
break;
|
1918 |
short val = bb.getShort();
|
1919 |
extData += val; |
1920 |
xlen += 2;
|
1921 |
}else if(xval == 2){ |
1922 |
if(xlen < 1) |
1923 |
break;
|
1924 |
byte val = bb.get();
|
1925 |
if(val == 0) |
1926 |
extData += "{";
|
1927 |
else if(val == 1) |
1928 |
extData += "}";
|
1929 |
else
|
1930 |
System.out.println("Byte no esperado:"+val); |
1931 |
}else if(xval == 5){ |
1932 |
if(xlen < 8) |
1933 |
break;
|
1934 |
long val = bb.getLong();
|
1935 |
//probably it is an entity handle
|
1936 |
xlen -= 8;
|
1937 |
}else if (xval == 40 || xval == 41 || xval == 42){ |
1938 |
if (xlen < 8) |
1939 |
break;
|
1940 |
double val = bb.getDouble();
|
1941 |
xlen -= 8;
|
1942 |
extData += val; |
1943 |
|
1944 |
}else if (xval == 10 || xval == 11 || xval == 12 || xval == 13){ |
1945 |
//13 not in R12 spec, is in R13/R14
|
1946 |
if(xlen < 24) |
1947 |
break;
|
1948 |
Object point = getPoint(true); |
1949 |
extData += point.toString(); |
1950 |
xlen -= 24;
|
1951 |
}else if(xval == 71){ |
1952 |
if (xlen < 4) |
1953 |
break;
|
1954 |
int val = bb.getInt();
|
1955 |
extData += val; |
1956 |
xlen -= 4;
|
1957 |
}else
|
1958 |
xlen = 0;
|
1959 |
return extData;
|
1960 |
} |
1961 |
/*
|
1962 |
|
1963 |
|
1964 |
|
1965 |
elif _xval == 71:
|
1966 |
if _xlen < 4: break
|
1967 |
_val = struct.unpack('<l', handle.read(4))[0]
|
1968 |
_data.append(_val)
|
1969 |
_xlen = _xlen - 4
|
1970 |
else:
|
1971 |
_xlen = 0
|
1972 |
return _data
|
1973 |
* */
|
1974 |
return null; |
1975 |
} |
1976 |
|
1977 |
|
1978 |
|
1979 |
/**
|
1980 |
* @param b
|
1981 |
* @return
|
1982 |
*/
|
1983 |
private double[] getPoint(boolean b) { |
1984 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
1985 |
double x = bb.getDouble();
|
1986 |
double y = bb.getDouble();
|
1987 |
double z = 0d; |
1988 |
if(b){
|
1989 |
z = bb.getDouble(); |
1990 |
} |
1991 |
return new double[]{x, y, z}; |
1992 |
} |
1993 |
|
1994 |
|
1995 |
|
1996 |
//TODO Que se hacen con los registros que se leen???
|
1997 |
private void readBlockTable(Dwg12Table blockTable) { |
1998 |
short size = blockTable.s1;
|
1999 |
int numRecords = blockTable.i1;
|
2000 |
int start = blockTable.i2;
|
2001 |
|
2002 |
int begin = -1; |
2003 |
int end = -1; |
2004 |
|
2005 |
for(int i = 0; i < numRecords; i++){ |
2006 |
|
2007 |
begin = start + i * size; |
2008 |
bb.position(begin); |
2009 |
|
2010 |
end = begin + size - 2;
|
2011 |
|
2012 |
byte flag = bb.get();
|
2013 |
byte[] nameByte = new byte[32]; |
2014 |
bb.get(nameByte); |
2015 |
String name = new String(nameByte).trim(); |
2016 |
|
2017 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
2018 |
|
2019 |
short used = bb.getShort();
|
2020 |
byte b1 = bb.get();
|
2021 |
short w1 = bb.getShort();
|
2022 |
byte b2 = bb.get();
|
2023 |
|
2024 |
short w3 = bb.getShort();
|
2025 |
short crc = bb.getShort();
|
2026 |
|
2027 |
int offset = end - bb.position();
|
2028 |
if(offset > 0) |
2029 |
bb.position(bb.position() + end); |
2030 |
|
2031 |
Block block = new Block();
|
2032 |
block.flag = flag; |
2033 |
block.name = name; |
2034 |
block.used = used; |
2035 |
block.b1 = b1; |
2036 |
block.w1 = w1; |
2037 |
block.b2 = b2; |
2038 |
block.w3 = w3; |
2039 |
block.crc = crc; |
2040 |
blocks.add(block); |
2041 |
}//for
|
2042 |
byte[] crc32 = new byte[32]; |
2043 |
bb.get(crc32); |
2044 |
} |
2045 |
|
2046 |
public void readHeader(){ |
2047 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
2048 |
short w1 = bb.getShort();
|
2049 |
double[] inBase = getPoint(true); |
2050 |
double[] extMin = getPoint(true); |
2051 |
double[] extMax = getPoint(true); |
2052 |
double[] limMin = getPoint(false); |
2053 |
double[] limMax = getPoint(false); |
2054 |
|
2055 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
2056 |
double vcx = bb.getDouble();
|
2057 |
double vcy = bb.getDouble();
|
2058 |
double d3 = bb.getDouble();
|
2059 |
double d4 = bb.getDouble();
|
2060 |
|
2061 |
byte b1 = bb.get();
|
2062 |
byte b2 = bb.get();
|
2063 |
|
2064 |
double sx = bb.getDouble();
|
2065 |
double sy = bb.getDouble();
|
2066 |
|
2067 |
bb.order(ByteOrder.nativeOrder());
|
2068 |
byte[] b56 = new byte[56]; |
2069 |
bb.get(b56); |
2070 |
|
2071 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
2072 |
double d7 = bb.getDouble();
|
2073 |
double d8 = bb.getDouble();
|
2074 |
double d9 = bb.getDouble();
|
2075 |
|
2076 |
bb.order(ByteOrder.nativeOrder());
|
2077 |
byte[] b18 = new byte[18]; |
2078 |
bb.get(b18); |
2079 |
|
2080 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
2081 |
double d10 = bb.getDouble();
|
2082 |
|
2083 |
int at = bb.position();
|
2084 |
|
2085 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
2086 |
short w2 = bb.getShort();
|
2087 |
short w3 = bb.getShort();
|
2088 |
|
2089 |
bb.order(ByteOrder.nativeOrder());
|
2090 |
byte[] b44 = new byte[44]; |
2091 |
bb.get(b44); |
2092 |
|
2093 |
at = bb.position(); |
2094 |
|
2095 |
bb.order(ByteOrder.nativeOrder());
|
2096 |
byte[] b354 = new byte[354]; |
2097 |
bb.get(b354); |
2098 |
|
2099 |
if( (b354[0] == 0x61) && (b354[1] == 0x63) && (b354[2] == 0x61 ) && (b354[2] == 0x64 )) |
2100 |
System.out.println("Encontrada la cadena 'acad' al comienzo del bloque de 354 bytes"); |
2101 |
|
2102 |
bb.position(0x3ef);
|
2103 |
} |
2104 |
|
2105 |
|
2106 |
|
2107 |
|
2108 |
|
2109 |
class Dwg12Table{ |
2110 |
short s1;
|
2111 |
int i1;
|
2112 |
int i2;
|
2113 |
} |
2114 |
|
2115 |
public Dwg12Table getTable(){
|
2116 |
|
2117 |
Dwg12Table solution = null;
|
2118 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
2119 |
|
2120 |
short s1 = bb.getShort();
|
2121 |
int i1 = bb.getInt();
|
2122 |
int i2 = bb.getInt();
|
2123 |
|
2124 |
solution = new Dwg12Table();
|
2125 |
solution.s1 = s1; |
2126 |
solution.i1 = i1; |
2127 |
solution.i2 = i2; |
2128 |
return solution;
|
2129 |
} |
2130 |
|
2131 |
|
2132 |
class Dwg12TableTest{ |
2133 |
short s1, s2, s3;
|
2134 |
int i1;
|
2135 |
} |
2136 |
public Dwg12TableTest getTableTest(){
|
2137 |
Dwg12TableTest solution = null;
|
2138 |
|
2139 |
|
2140 |
bb.order(ByteOrder.LITTLE_ENDIAN);
|
2141 |
short s1 = bb.getShort();
|
2142 |
short s2 = bb.getShort();
|
2143 |
short s3 = bb.getShort();
|
2144 |
int i1 = bb.getInt();
|
2145 |
|
2146 |
solution = new Dwg12TableTest();
|
2147 |
solution.s1 = s1; |
2148 |
solution.s2 = s2; |
2149 |
solution.s3 = s3; |
2150 |
solution.i1 = i1; |
2151 |
|
2152 |
return solution;
|
2153 |
} |
2154 |
|
2155 |
/* (non-Javadoc)
|
2156 |
* @see com.iver.cit.jdwglib.dwg.readers.IDwgFileReader#readObjectHeader(int[], int, com.iver.cit.jdwglib.dwg.DwgObject)
|
2157 |
*/
|
2158 |
public int readObjectHeader(int[] data, int offset, DwgObject dwgObject) throws RuntimeException, CorruptedDwgEntityException { |
2159 |
return 0; |
2160 |
} |
2161 |
|
2162 |
/* (non-Javadoc)
|
2163 |
* @see com.iver.cit.jdwglib.dwg.readers.IDwgFileReader#readObjectTailer(int[], int, com.iver.cit.jdwglib.dwg.DwgObject)
|
2164 |
*/
|
2165 |
public int readObjectTailer(int[] data, int offset, DwgObject dwgObject) throws RuntimeException, CorruptedDwgEntityException { |
2166 |
return 0; |
2167 |
} |
2168 |
|
2169 |
} |