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qgsdxfexport.cpp
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qgsdxfexport.cpp
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/***************************************************************************
qgsdxfexport.cpp
----------------
begin : September 2013
copyright : (C) 2013 by Marco Hugentobler
email : marco at sourcepole dot ch
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
// Specs:
// AutoCAD 2000: http://www.autodesk.com/techpubs/autocad/acad2000/dxf/
// AutoCAD 2002: http://www.autodesk.com/techpubs/autocad/dxf/dxf2002.pdf
// AutoCAD 2004: http://atrey.karlin.mff.cuni.cz/projekty/vrr/doc/dxf14.pdf
// AutoCAD 2006: http://images.autodesk.com/adsk/files/dxf_format.pdf
// AutoCAD 2008: http://images.autodesk.com/adsk/files/acad_dxf0.pdf
// AutoCAD 2009: http://images.autodesk.com/adsk/files/acad_dxf.pdf
// AutoCAD 2011: http://images.autodesk.com/adsk/files/acad_dxf2.pdf
// AutoCAD 2012: http://images.autodesk.com/adsk/files/autocad_2012_pdf_dxf-reference_enu.pdf
// AutoCAD 2014: http://images.autodesk.com/adsk/files/autocad_2014_pdf_dxf_reference_enu.pdf
#include "qgsdxfexport.h"
#include "qgsdxfpallabeling.h"
#include "qgsvectordataprovider.h"
#include "qgspoint.h"
#include "qgsrendererv2.h"
#include "qgssymbollayerv2.h"
#include "qgsfillsymbollayerv2.h"
#include "qgslinesymbollayerv2.h"
#include "qgsvectorlayer.h"
#include "qgsmaplayerregistry.h"
#include <QIODevice>
#define DXF_HANDSEED 100
#define DXF_HANDMAX 9999999
#define DXF_HANDPLOTSTYLE 0xf
// dxf color palette
int QgsDxfExport::mDxfColors[][3] =
{
{ 255, 255, 255 },
{ 255, 0, 0 },
{ 255, 255, 0 },
{ 0, 255, 0 },
{ 0, 255, 255 },
{ 0, 0, 255 },
{ 255, 0, 255 },
{ 0, 0, 0 },
{ 128, 128, 128 },
{ 192, 192, 192 },
{ 255, 0, 0 },
{ 255, 127, 127 },
{ 204, 0, 0 },
{ 204, 102, 102 },
{ 153, 0, 0 },
{ 153, 76, 76 },
{ 127, 0, 0 },
{ 127, 63, 63 },
{ 76, 0, 0 },
{ 76, 38, 38 },
{ 255, 63, 0 },
{ 255, 159, 127 },
{ 204, 51, 0 },
{ 204, 127, 102 },
{ 153, 38, 0 },
{ 153, 95, 76 },
{ 127, 31, 0 },
{ 127, 79, 63 },
{ 76, 19, 0 },
{ 76, 47, 38 },
{ 255, 127, 0 },
{ 255, 191, 127 },
{ 204, 102, 0 },
{ 204, 153, 102 },
{ 153, 76, 0 },
{ 153, 114, 76 },
{ 127, 63, 0 },
{ 127, 95, 63 },
{ 76, 38, 0 },
{ 76, 57, 38 },
{ 255, 191, 0 },
{ 255, 223, 127 },
{ 204, 153, 0 },
{ 204, 178, 102 },
{ 153, 114, 0 },
{ 153, 133, 76 },
{ 127, 95, 0 },
{ 127, 111, 63 },
{ 76, 57, 0 },
{ 76, 66, 38 },
{ 255, 255, 0 },
{ 255, 255, 127 },
{ 204, 204, 0 },
{ 204, 204, 102 },
{ 153, 153, 0 },
{ 153, 153, 76 },
{ 127, 127, 0 },
{ 127, 127, 63 },
{ 76, 76, 0 },
{ 76, 76, 38 },
{ 191, 255, 0 },
{ 223, 255, 127 },
{ 153, 204, 0 },
{ 178, 204, 102 },
{ 114, 153, 0 },
{ 133, 153, 76 },
{ 95, 127, 0 },
{ 111, 127, 63 },
{ 57, 76, 0 },
{ 66, 76, 38 },
{ 127, 255, 0 },
{ 191, 255, 127 },
{ 102, 204, 0 },
{ 153, 204, 102 },
{ 76, 153, 0 },
{ 114, 153, 76 },
{ 63, 127, 0 },
{ 95, 127, 63 },
{ 38, 76, 0 },
{ 57, 76, 38 },
{ 63, 255, 0 },
{ 159, 255, 127 },
{ 51, 204, 0 },
{ 127, 204, 102 },
{ 38, 153, 0 },
{ 95, 153, 76 },
{ 31, 127, 0 },
{ 79, 127, 63 },
{ 19, 76, 0 },
{ 47, 76, 38 },
{ 0, 255, 0 },
{ 127, 255, 127 },
{ 0, 204, 0 },
{ 102, 204, 102 },
{ 0, 153, 0 },
{ 76, 153, 76 },
{ 0, 127, 0 },
{ 63, 127, 63 },
{ 0, 76, 0 },
{ 38, 76, 38 },
{ 0, 255, 63 },
{ 127, 255, 159 },
{ 0, 204, 51 },
{ 102, 204, 127 },
{ 0, 153, 38 },
{ 76, 153, 95 },
{ 0, 127, 31 },
{ 63, 127, 79 },
{ 0, 76, 19 },
{ 38, 76, 47 },
{ 0, 255, 127 },
{ 127, 255, 191 },
{ 0, 204, 102 },
{ 102, 204, 153 },
{ 0, 153, 76 },
{ 76, 153, 114 },
{ 0, 127, 63 },
{ 63, 127, 95 },
{ 0, 76, 38 },
{ 38, 76, 57 },
{ 0, 255, 191 },
{ 127, 255, 223 },
{ 0, 204, 153 },
{ 102, 204, 178 },
{ 0, 153, 114 },
{ 76, 153, 133 },
{ 0, 127, 95 },
{ 63, 127, 111 },
{ 0, 76, 57 },
{ 38, 76, 66 },
{ 0, 255, 255 },
{ 127, 255, 255 },
{ 0, 204, 204 },
{ 102, 204, 204 },
{ 0, 153, 153 },
{ 76, 153, 153 },
{ 0, 127, 127 },
{ 63, 127, 127 },
{ 0, 76, 76 },
{ 38, 76, 76 },
{ 0, 191, 255 },
{ 127, 223, 255 },
{ 0, 153, 204 },
{ 102, 178, 204 },
{ 0, 114, 153 },
{ 76, 133, 153 },
{ 0, 95, 127 },
{ 63, 111, 127 },
{ 0, 57, 76 },
{ 38, 66, 76 },
{ 0, 127, 255 },
{ 127, 191, 255 },
{ 0, 102, 204 },
{ 102, 153, 204 },
{ 0, 76, 153 },
{ 76, 114, 153 },
{ 0, 63, 127 },
{ 63, 95, 127 },
{ 0, 38, 76 },
{ 38, 57, 76 },
{ 0, 63, 255 },
{ 127, 159, 255 },
{ 0, 51, 204 },
{ 102, 127, 204 },
{ 0, 38, 153 },
{ 76, 95, 153 },
{ 0, 31, 127 },
{ 63, 79, 127 },
{ 0, 19, 76 },
{ 38, 47, 76 },
{ 0, 0, 255 },
{ 127, 127, 255 },
{ 0, 0, 204 },
{ 102, 102, 204 },
{ 0, 0, 153 },
{ 76, 76, 153 },
{ 0, 0, 127 },
{ 63, 63, 127 },
{ 0, 0, 76 },
{ 38, 38, 76 },
{ 63, 0, 255 },
{ 159, 127, 255 },
{ 51, 0, 204 },
{ 127, 102, 204 },
{ 38, 0, 153 },
{ 95, 76, 153 },
{ 31, 0, 127 },
{ 79, 63, 127 },
{ 19, 0, 76 },
{ 47, 38, 76 },
{ 127, 0, 255 },
{ 191, 127, 255 },
{ 102, 0, 204 },
{ 153, 102, 204 },
{ 76, 0, 153 },
{ 114, 76, 153 },
{ 63, 0, 127 },
{ 95, 63, 127 },
{ 38, 0, 76 },
{ 57, 38, 76 },
{ 191, 0, 255 },
{ 223, 127, 255 },
{ 153, 0, 204 },
{ 178, 102, 204 },
{ 114, 0, 153 },
{ 133, 76, 153 },
{ 95, 0, 127 },
{ 111, 63, 127 },
{ 57, 0, 76 },
{ 66, 38, 76 },
{ 255, 0, 255 },
{ 255, 127, 255 },
{ 204, 0, 204 },
{ 204, 102, 204 },
{ 153, 0, 153 },
{ 153, 76, 153 },
{ 127, 0, 127 },
{ 127, 63, 127 },
{ 76, 0, 76 },
{ 76, 38, 76 },
{ 255, 0, 191 },
{ 255, 127, 223 },
{ 204, 0, 153 },
{ 204, 102, 178 },
{ 153, 0, 114 },
{ 153, 76, 133 },
{ 127, 0, 95 },
{ 127, 63, 111 },
{ 76, 0, 57 },
{ 76, 38, 66 },
{ 255, 0, 127 },
{ 255, 127, 191 },
{ 204, 0, 102 },
{ 204, 102, 153 },
{ 153, 0, 76 },
{ 153, 76, 114 },
{ 127, 0, 63 },
{ 127, 63, 95 },
{ 76, 0, 38 },
{ 76, 38, 57 },
{ 255, 0, 63 },
{ 255, 127, 159 },
{ 204, 0, 51 },
{ 204, 102, 127 },
{ 153, 0, 38 },
{ 153, 76, 95 },
{ 127, 0, 31 },
{ 127, 63, 79 },
{ 76, 0, 19 },
{ 76, 38, 47 },
{ 51, 51, 51 },
{ 91, 91, 91 },
{ 132, 132, 132 },
{ 173, 173, 173 },
{ 214, 214, 214 },
{ 255, 255, 255 },
};
const char *QgsDxfExport::mDxfEncodings[][2] =
{
{ "ASCII", "" },
{ "8859_1", "ISO-8859-1" },
{ "8859_2", "ISO-8859-2" },
{ "8859_3", "ISO-8859-3" },
{ "8859_4", "ISO-8859-4" },
{ "8859_5", "ISO-8859-5" },
{ "8859_6", "ISO-8859-6" },
{ "8859_7", "ISO-8859-7" },
{ "8859_8", "ISO-8859-8" },
{ "8859_9", "ISO-8859-9" },
// { "DOS437", "" },
{ "DOS850", "CP850" },
// { "DOS852", "" },
// { "DOS855", "" },
// { "DOS857", "" },
// { "DOS860", "" },
// { "DOS861", "" },
// { "DOS863", "" },
// { "DOS864", "" },
// { "DOS865", "" },
// { "DOS869", "" },
// { "DOS932", "" },
{ "MACINTOSH", "MacRoman" },
{ "BIG5", "Big5" },
{ "KSC5601", "ksc5601.1987-0" },
// { "JOHAB", "" },
{ "DOS866", "CP866" },
{ "ANSI_1250", "CP1250" },
{ "ANSI_1251", "CP1251" },
{ "ANSI_1252", "CP1252" },
{ "GB2312", "GB2312" },
{ "ANSI_1253", "CP1253" },
{ "ANSI_1254", "CP1254" },
{ "ANSI_1255", "CP1255" },
{ "ANSI_1256", "CP1256" },
{ "ANSI_1257", "CP1257" },
{ "ANSI_874", "CP874" },
{ "ANSI_932", "Shift_JIS" },
{ "ANSI_936", "CP936" },
{ "ANSI_949", "cp949" },
{ "ANSI_950", "CP950" },
// { "ANSI_1361", "" },
// { "ANSI_1200", "" },
{ "ANSI_1258", "CP1258" },
};
QgsDxfExport::QgsDxfExport()
: mSymbologyScaleDenominator( 1.0 )
, mSymbologyExport( NoSymbology )
, mMapUnits( QGis::Meters )
, mSymbolLayerCounter( 0 )
, mNextHandleId( DXF_HANDSEED )
, mBlockCounter( 0 )
, mModelSpaceBR( 0 )
{
}
QgsDxfExport::QgsDxfExport( const QgsDxfExport& dxfExport )
: mModelSpaceBR( 0 )
{
*this = dxfExport;
}
QgsDxfExport& QgsDxfExport::operator=( const QgsDxfExport & dxfExport )
{
mLayers = dxfExport.mLayers;
mSymbologyScaleDenominator = dxfExport.mSymbologyScaleDenominator;
mSymbologyExport = dxfExport.mSymbologyExport;
mMapUnits = dxfExport.mMapUnits;
mSymbolLayerCounter = 0; // internal counter
mNextHandleId = 0;
mBlockCounter = 0;
return *this;
}
QgsDxfExport::~QgsDxfExport()
{
}
void QgsDxfExport::addLayers( const QList< QPair< QgsVectorLayer *, int > > &layers )
{
mLayers = layers;
}
void QgsDxfExport::writeGroup( int code, int i )
{
writeGroupCode( code );
writeInt( i );
}
void QgsDxfExport::writeGroup( int code, double d )
{
writeGroupCode( code );
writeDouble( d );
}
void QgsDxfExport::writeGroup( int code, const QString& s )
{
writeGroupCode( code );
writeString( s );
}
void QgsDxfExport::writeGroup( int code, const QgsPoint &p, double z, bool skipz )
{
writeGroup( code + 10, p.x() );
writeGroup( code + 20, p.y() );
if ( !skipz )
writeGroup( code + 30, z );
}
void QgsDxfExport::writeGroup( QColor color, int exactMatchCode, int rgbCode, int transparencyCode )
{
int minDistAt = -1;
int minDist = INT_MAX;
for ( int i = 1; i < ( int )( sizeof( mDxfColors ) / sizeof( *mDxfColors ) ) && minDist > 0; ++i )
{
int dist = color_distance( color.rgba(), i );
if ( dist >= minDist )
continue;
minDistAt = i;
minDist = dist;
}
writeGroup( exactMatchCode, minDistAt );
if ( minDist == 0 && color.alpha() == 255 && minDistAt != 7 )
{
// exact full opaque match, not black/white
return;
}
int c = ( color.red() & 0xff ) * 0x10000 + ( color.green() & 0xff ) * 0x100 + ( color.blue() & 0xff );
writeGroup( rgbCode, c );
if ( transparencyCode != -1 && color.alpha() < 255 )
writeGroup( transparencyCode, 0x2000000 | color.alpha() );
}
void QgsDxfExport::writeGroupCode( int code )
{
mTextStream << QString( "%1\n" ).arg( code, 3, 10, QChar( ' ' ) );
}
void QgsDxfExport::writeInt( int i )
{
mTextStream << QString( "%1\n" ).arg( i, 6, 10, QChar( ' ' ) );
}
void QgsDxfExport::writeDouble( double d )
{
QString s( qgsDoubleToString( d ) );
if ( !s.contains( "." ) )
s += ".0";
mTextStream << s << "\n";
}
void QgsDxfExport::writeString( const QString& s )
{
mTextStream << s << "\n";
}
int QgsDxfExport::writeToFile( QIODevice* d, QString encoding )
{
if ( !d )
{
return 1;
}
if ( !d->isOpen() && !d->open( QIODevice::WriteOnly ) )
{
return 2;
}
mTextStream.setDevice( d );
mTextStream.setCodec( encoding.toLocal8Bit() );
writeHeader( dxfEncoding( encoding ) );
writeTables();
writeBlocks();
writeEntities();
writeEndFile();
return 0;
}
void QgsDxfExport::writeHeader( QString codepage )
{
writeGroup( 999, "DXF created from QGIS" );
startSection();
writeGroup( 2, "HEADER" );
// ACADVER
writeGroup( 9, "$ACADVER" );
writeGroup( 1, "AC1015" );
QgsRectangle ext( mExtent.isEmpty() ? dxfExtent() : mExtent );
if ( !ext.isEmpty() )
{
// EXTMIN
writeGroup( 9, "$EXTMIN" );
writeGroup( 0, QgsPoint( ext.xMinimum(), ext.yMinimum() ) );
// EXTMAX
writeGroup( 9, "$EXTMAX" );
writeGroup( 0, QgsPoint( ext.xMaximum(), ext.yMaximum() ) );
}
// Global linetype scale
writeGroup( 9, "$LTSCALE" );
writeGroup( 40, 1.0 );
// Point display mode (33 = circle)
writeGroup( 9, "$PDMODE" );
writeGroup( 70, 33 );
// Point display size
writeGroup( 9, "$PDSIZE" );
writeGroup( 40, 1 );
// Controls paper space linetype scaling (1 = No special linetype scaling, 0 = Viewport scaling governs linetype scaling)
writeGroup( 9, "$PSLTSCALE" );
writeGroup( 70, 0 );
writeGroup( 9, "$HANDSEED" );
writeGroup( 5, DXF_HANDMAX );
writeGroup( 9, "$DWGCODEPAGE" );
writeGroup( 3, codepage );
endSection();
}
int QgsDxfExport::writeHandle( int code, int handle )
{
if ( handle == 0 )
handle = mNextHandleId++;
Q_ASSERT_X( handle < DXF_HANDMAX, "QgsDxfExport::writeHandle(int, int)", "DXF handle too large" );
writeGroup( code, QString( "%1" ).arg( handle, 0, 16 ) );
return handle;
}
void QgsDxfExport::writeTables()
{
startSection();
writeGroup( 2, "TABLES" );
// Iterate through all layers and get symbol layer pointers
QList< QPair< QgsSymbolLayerV2*, QgsSymbolV2* > > slList;
if ( mSymbologyExport != NoSymbology )
{
slList = symbolLayers();
}
// Line types
mLineStyles.clear();
writeGroup( 0, "TABLE" );
writeGroup( 2, "LTYPE" );
writeHandle();
writeGroup( 100, "AcDbSymbolTable" );
writeGroup( 70, nLineTypes( slList ) + 5 );
writeDefaultLinetypes();
// Add custom linestyles
QList< QPair< QgsSymbolLayerV2*, QgsSymbolV2*> >::const_iterator slIt = slList.constBegin();
for ( ; slIt != slList.constEnd(); ++slIt )
{
writeSymbolLayerLinetype( slIt->first );
}
writeGroup( 0, "ENDTAB" );
// BLOCK_RECORD
writeGroup( 0, "TABLE" );
writeGroup( 2, "BLOCK_RECORD" );
writeHandle();
writeGroup( 100, "AcDbSymbolTable" );
writeGroup( 70, 0 );
writeGroup( 0, "BLOCK_RECORD" );
mModelSpaceBR = writeHandle();
writeGroup( 100, "AcDbSymbolTableRecord" );
writeGroup( 100, "AcDbBlockTableRecord" );
writeGroup( 2, "*Model_Space" );
writeGroup( 0, "BLOCK_RECORD" );
writeHandle();
writeGroup( 100, "AcDbSymbolTableRecord" );
writeGroup( 100, "AcDbBlockTableRecord" );
writeGroup( 2, "*Paper_Space" );
writeGroup( 0, "BLOCK_RECORD" );
writeHandle();
writeGroup( 100, "AcDbSymbolTableRecord" );
writeGroup( 100, "AcDbBlockTableRecord" );
writeGroup( 2, "*Paper_Space0" );
int i = 0;
slIt = slList.constBegin();
for ( ; slIt != slList.constEnd(); ++slIt )
{
QgsMarkerSymbolLayerV2 *ml = dynamic_cast< QgsMarkerSymbolLayerV2*>( slIt->first );
if ( !ml )
continue;
if ( hasDataDefinedProperties( ml, slIt->second ) )
continue;
writeGroup( 0, "BLOCK_RECORD" );
writeHandle();
writeGroup( 100, "AcDbSymbolTableRecord" );
writeGroup( 100, "AcDbBlockTableRecord" );
writeGroup( 2, QString( "symbolLayer%1" ).arg( i++ ) );
}
writeGroup( 0, "ENDTAB" );
// APPID
writeGroup( 0, "TABLE" );
writeGroup( 2, "APPID" );
writeHandle();
writeGroup( 100, "AcDbSymbolTable" );
writeGroup( 70, 1 );
writeGroup( 0, "APPID" );
writeHandle();
writeGroup( 100, "AcDbSymbolTableRecord" );
writeGroup( 100, "AcDbRegAppTableRecord" );
writeGroup( 2, "ACAD" );
writeGroup( 70, 0 );
writeGroup( 0, "ENDTAB" );
// VIEW
writeGroup( 0, "TABLE" );
writeGroup( 2, "VIEW" );
writeHandle();
writeGroup( 100, "AcDbSymbolTable" );
writeGroup( 70, 0 );
writeGroup( 0, "ENDTAB" );
// UCS
writeGroup( 0, "TABLE" );
writeGroup( 2, "UCS" );
writeHandle();
writeGroup( 100, "AcDbSymbolTable" );
writeGroup( 70, 0 );
writeGroup( 0, "ENDTAB" );
// VPORT
writeGroup( 0, "TABLE" );
writeGroup( 2, "VPORT" );
writeHandle();
writeGroup( 100, "AcDbSymbolTable" );
QgsRectangle ext( mExtent.isEmpty() ? dxfExtent() : mExtent );
writeGroup( 0, "VPORT" );
writeHandle();
writeGroup( 100, "AcDbSymbolTableRecord" );
writeGroup( 100, "AcDbViewportTableRecord" );
writeGroup( 2, "*ACTIVE" );
writeGroup( 70, 0 ); // flags
writeGroup( 0, QgsPoint( 0.0, 0.0 ), 0.0, true ); // lower left
writeGroup( 1, QgsPoint( 1.0, 1.0 ), 0.0, true ); // upper right
writeGroup( 2, QgsPoint( 0.0, 0.0 ), 0.0, true ); // view center point
writeGroup( 3, QgsPoint( 0.0, 0.0 ), 0.0, true ); // snap base point
writeGroup( 4, QgsPoint( 1.0, 1.0 ), 0.0, true ); // snap spacing
writeGroup( 5, QgsPoint( 1.0, 1.0 ), 0.0, true ); // grid spacing
writeGroup( 6, QgsPoint( 0.0, 0.0 ), 1.0 ); // view direction from target point
writeGroup( 7, ext.center(), 0.0, true ); // view target point
writeGroup( 40, ext.height() ); // view height
writeGroup( 41, ext.width() / ext.height() ); // view aspect ratio
writeGroup( 42, 50.0 ); // lens length
writeGroup( 43, 0.0 ); // front clipping plane
writeGroup( 44, 0.0 ); // back clipping plane
writeGroup( 50, 0.0 ); // snap rotation
writeGroup( 51, 0.0 ); // view twist angle
writeGroup( 71, 0 ); // view mode (0 = deactivates)
writeGroup( 72, 100 ); // circle zoom percent
writeGroup( 73, 1 ); // fast zoom setting
writeGroup( 74, 1 ); // UCSICON setting
writeGroup( 75, 0 ); // snapping off
writeGroup( 76, 0 ); // grid off
writeGroup( 77, 0 ); // snap style
writeGroup( 78, 0 ); // snap isopair
writeGroup( 281, 0 ); // render mode (0 = 2D optimized)
writeGroup( 65, 1 ); // value of UCSVP for this viewport
writeGroup( 100, QgsPoint( 0.0, 0.0 ) ); // UCS origin
writeGroup( 101, QgsPoint( 1.0, 0.0 ) ); // UCS x axis
writeGroup( 102, QgsPoint( 0.0, 1.0 ) ); // UCS y axis
writeGroup( 79, 0 ); // Orthographic type of UCS (0 = UCS is not orthographic)
writeGroup( 146, 0.0 ); // Elevation
writeGroup( 70, 0 );
writeGroup( 0, "ENDTAB" );
// DIMSTYLE
writeGroup( 0, "TABLE" );
writeGroup( 2, "DIMSTYLE" );
writeHandle();
writeGroup( 100, "AcDbSymbolTable" );
writeGroup( 100, "AcDbDimStyleTable" );
writeGroup( 70, 0 );
writeGroup( 0, "ENDTAB" );
QList< QPair<QgsVectorLayer*, int> >::const_iterator layerIt = mLayers.constBegin();
QSet<QString> layerNames;
for ( ; layerIt != mLayers.constEnd(); ++layerIt )
{
if ( !layerIsScaleBasedVisible( layerIt->first ) )
continue;
if ( layerIt->first )
{
if ( layerIt->second < 0 )
{
layerNames << dxfLayerName( layerIt->first->name() );
}
else
{
QList<QVariant> values;
layerIt->first->uniqueValues( layerIt->second, values );
foreach ( QVariant v, values )
{
layerNames << dxfLayerName( v.toString() );
}
}
}
}
// Layers
// TODO: iterate features of all layer to produce a data-defined layer list
writeGroup( 0, "TABLE" );
writeGroup( 2, "LAYER" );
writeHandle();
writeGroup( 100, "AcDbSymbolTable" );
writeGroup( 70, layerNames.size() + 1 );
writeGroup( 0, "LAYER" );
writeHandle();
writeGroup( 100, "AcDbSymbolTableRecord" );
writeGroup( 100, "AcDbLayerTableRecord" );
writeGroup( 2, "0" );
writeGroup( 70, 64 );
writeGroup( 62, 1 );
writeGroup( 6, "CONTINUOUS" );
writeHandle( 390, DXF_HANDPLOTSTYLE );
foreach ( QString layerName, layerNames )
{
writeGroup( 0, "LAYER" );
writeHandle();
writeGroup( 100, "AcDbSymbolTableRecord" );
writeGroup( 100, "AcDbLayerTableRecord" );
writeGroup( 2, layerName );
writeGroup( 70, 64 );
writeGroup( 62, 1 );
writeGroup( 6, "CONTINUOUS" );
writeHandle( 390, DXF_HANDPLOTSTYLE );
}
writeGroup( 0, "ENDTAB" );
// Text styles
writeGroup( 0, "TABLE" );
writeGroup( 2, "STYLE" );
writeHandle();
writeGroup( 100, "AcDbSymbolTable" );
writeGroup( 70, 1 );
// Provide only standard font for the moment
writeGroup( 0, "STYLE" );
writeHandle();
writeGroup( 100, "AcDbSymbolTableRecord" );
writeGroup( 100, "AcDbTextStyleTableRecord" );
writeGroup( 2, "STANDARD" );
writeGroup( 70, 64 );
writeGroup( 40, 0.0 );
writeGroup( 41, 1.0 );
writeGroup( 50, 0.0 );
writeGroup( 71, 0 );
writeGroup( 42, 5.0 );
writeGroup( 3, "romans.shx" );
writeGroup( 4, "" );
writeGroup( 0, "ENDTAB" );
endSection();
}
void QgsDxfExport::writeBlocks()
{
startSection();
writeGroup( 2, "BLOCKS" );
writeGroup( 0, "BLOCK" );
writeHandle();
writeGroup( 100, "AcDbEntity" );
writeGroup( 8, "0" );
writeGroup( 100, "AcDbBlockBegin" );
writeGroup( 2, "*Model_Space" );
writeGroup( 70, 0 );
writeGroup( 0, QgsPoint( 0.0, 0.0 ) );
writeGroup( 3, "*Model_Space" );
writeGroup( 1, "" );
writeGroup( 0, "ENDBLK" );
writeHandle();
writeGroup( 100, "AcDbEntity" );
writeGroup( 8, "0" );
writeGroup( 100, "AcDbBlockEnd" );
writeGroup( 0, "BLOCK" );
writeHandle();
writeGroup( 100, "AcDbEntity" );
writeGroup( 8, "0" );
writeGroup( 100, "AcDbBlockBegin" );
writeGroup( 2, "*Paper_Space" );
writeGroup( 70, 0 );
writeGroup( 0, QgsPoint( 0.0, 0.0 ) );
writeGroup( 3, "*Paper_Space" );
writeGroup( 1, "" );
writeGroup( 0, "ENDBLK" );
writeHandle();
writeGroup( 100, "AcDbEntity" );
writeGroup( 8, "0" );
writeGroup( 100, "AcDbBlockEnd" );
writeGroup( 0, "BLOCK" );
writeHandle();
writeGroup( 100, "AcDbEntity" );
writeGroup( 8, "0" );
writeGroup( 100, "AcDbBlockBegin" );
writeGroup( 2, "*Paper_Space0" );
writeGroup( 70, 0 );
writeGroup( 0, QgsPoint( 0.0, 0.0 ) );
writeGroup( 3, "*Paper_Space0" );
writeGroup( 1, "" );
writeGroup( 0, "ENDBLK" );
writeHandle();
writeGroup( 100, "AcDbEntity" );
writeGroup( 8, "0" );
writeGroup( 100, "AcDbBlockEnd" );
// Iterate through all layers and get symbol layer pointers
QList< QPair< QgsSymbolLayerV2*, QgsSymbolV2* > > slList;
if ( mSymbologyExport != NoSymbology )
{
slList = symbolLayers();
}
QList< QPair< QgsSymbolLayerV2*, QgsSymbolV2* > >::const_iterator slIt = slList.constBegin();
for ( ; slIt != slList.constEnd(); ++slIt )
{
QgsMarkerSymbolLayerV2 *ml = dynamic_cast< QgsMarkerSymbolLayerV2*>( slIt->first );
if ( !ml )
continue;
// if point symbol layer and no data defined properties: write block
QgsRenderContext ct;
QgsSymbolV2RenderContext ctx( ct, QgsSymbolV2::MapUnit, slIt->second->alpha(), false, slIt->second->renderHints(), 0 );
ml->startRender( ctx );
// markers with data defined properties are inserted inline
if ( hasDataDefinedProperties( ml, slIt->second ) )
{
continue;
// ml->stopRender( ctx );
}
writeGroup( 0, "BLOCK" );
writeHandle();
writeGroup( 100, "AcDbEntity" );
writeGroup( 8, "0" );
writeGroup( 100, "AcDbBlockBegin" );
QString blockName = QString( "symbolLayer%1" ).arg( mBlockCounter++ );
writeGroup( 2, blockName );
writeGroup( 70, 0 );
writeGroup( 1, "" );
// x/y/z coordinates of reference point
// todo: consider anchor point
// double size = ml->size();
// size *= mapUnitScaleFactor( mSymbologyScaleDenominator, ml->sizeUnit(), mMapUnits );
writeGroup( 0, QgsPoint( 0.0, 0.0 ) );
writeGroup( 3, blockName );
ml->writeDxf( *this, mapUnitScaleFactor( mSymbologyScaleDenominator, ml->sizeUnit(), mMapUnits ), "0", &ctx, 0 ); // maplayer 0 -> block receives layer from INSERT statement
writeGroup( 0, "ENDBLK" );
writeHandle();
writeGroup( 100, "AcDbEntity" );
writeGroup( 100, "AcDbBlockEnd" );
writeGroup( 8, "0" );
mPointSymbolBlocks.insert( ml, blockName );
ml->stopRender( ctx );
}
endSection();
}
void QgsDxfExport::writeEntities()
{
startSection();
writeGroup( 2, "ENTITIES" );
// label engine
QgsDxfPalLabeling labelEngine( this, mExtent.isEmpty() ? dxfExtent() : mExtent, mSymbologyScaleDenominator, mMapUnits );
QgsRenderContext& ctx = labelEngine.renderContext();
// iterate through the maplayers
QList< QPair< QgsVectorLayer*, int > >::iterator layerIt = mLayers.begin();
for ( ; layerIt != mLayers.end(); ++layerIt )
{
QgsVectorLayer* vl = layerIt->first;
if ( !vl || !layerIsScaleBasedVisible( vl ) )
{
continue;
}
QgsSymbolV2RenderContext sctx( ctx, QgsSymbolV2::MM, 1.0, false, 0, 0 );
QgsFeatureRendererV2* renderer = vl->rendererV2();
if ( !renderer )
{
continue;
}
renderer->startRender( ctx, vl->pendingFields() );
QStringList attributes = renderer->usedAttributes();
if ( vl->pendingFields().exists( layerIt->second ) )
{
QString layerAttr = vl->pendingFields().at( layerIt->second ).name();
if ( !attributes.contains( layerAttr ) )
attributes << layerAttr;
}
bool labelLayer = labelEngine.prepareLayer( vl, attributes, ctx ) != 0;
if ( mSymbologyExport == QgsDxfExport::SymbolLayerSymbology &&
( renderer->capabilities() & QgsFeatureRendererV2::SymbolLevels ) &&
renderer->usingSymbolLevels() )
{
writeEntitiesSymbolLevels( vl );
renderer->stopRender( ctx );
continue;
}
QgsFeatureRequest freq = QgsFeatureRequest().setSubsetOfAttributes( attributes, vl->pendingFields() );
if ( !mExtent.isEmpty() )
{
freq.setFilterRect( mExtent );
}
QgsFeatureIterator featureIt = vl->getFeatures( freq );
QgsFeature fet;
while ( featureIt.nextFeature( fet ) )
{
QString layerName( dxfLayerName( layerIt->second == -1 ? vl->name() : fet.attribute( layerIt->second ).toString() ) );
sctx.setFeature( &fet );
if ( mSymbologyExport == NoSymbology )
{
addFeature( sctx, layerName, 0, 0 ); // no symbology at all
}
else
{
QgsSymbolV2List symbolList = renderer->symbolsForFeature( fet );
if ( symbolList.size() < 1 )
{
continue;
}
if ( mSymbologyExport == QgsDxfExport::SymbolLayerSymbology ) // symbol layer symbology, but layer does not use symbol levels
{
QgsSymbolV2List::iterator symbolIt = symbolList.begin();
for ( ; symbolIt != symbolList.end(); ++symbolIt )
{
int nSymbolLayers = ( *symbolIt )->symbolLayerCount();
for ( int i = 0; i < nSymbolLayers; ++i )
{
addFeature( sctx, layerName, ( *symbolIt )->symbolLayer( i ), *symbolIt );
}
}
}
else
{
// take first symbollayer from first symbol
QgsSymbolV2* s = symbolList.first();
if ( !s || s->symbolLayerCount() < 1 )
{
continue;