/** * @file DXF_plotter.cpp * @brief Kicad: specialized plotter for DXF files format */ /* * This program source code file is part of KiCad, a free EDA CAD application. * * Copyright (C) 2017-2021 KiCad Developers, see AUTHORS.txt for contributors. * * 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. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, you may find one here: * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html * or you may search the http://www.gnu.org website for the version 2 license, * or you may write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA */ #include #include #include #include #include /** * Oblique angle for DXF native text * (I don't remember if 15 degrees is the ISO value... it looks nice anyway) */ static const double DXF_OBLIQUE_ANGLE = 15; /* The layer/colors palette. The acad/DXF palette is divided in 3 zones: - The primary colors (1 - 9) - An HSV zone (10-250, 5 values x 2 saturations x 10 hues - Greys (251 - 255) There is *no* black... the white does it on paper, usually, and anyway it depends on the plotter configuration, since DXF colors are meant to be logical only (they represent *both* line color and width); later version with plot styles only complicate the matter! As usual, brown and magenta/purple are difficult to place since they are actually variations of other colors. */ static const struct { const char *name; int color; } dxf_layer[NBCOLORS] = { { "BLACK", 7 }, // In DXF, color 7 is *both* white and black! { "GRAY1", 251 }, { "GRAY2", 8 }, { "GRAY3", 9 }, { "WHITE", 7 }, { "LYELLOW", 51 }, { "BLUE1", 178 }, { "GREEN1", 98 }, { "CYAN1", 138 }, { "RED1", 18 }, { "MAGENTA1", 228 }, { "BROWN1", 58 }, { "BLUE2", 5 }, { "GREEN2", 3 }, { "CYAN2", 4 }, { "RED2", 1 }, { "MAGENTA2", 6 }, { "BROWN2", 54 }, { "BLUE3", 171 }, { "GREEN3", 91 }, { "CYAN3", 131 }, { "RED3", 11 }, { "MAGENTA3", 221 }, { "YELLOW3", 2 }, { "BLUE4", 5 }, { "GREEN4", 3 }, { "CYAN4", 4 }, { "RED4", 1 }, { "MAGENTA4", 6 }, { "YELLOW4", 2 } }; static const char* getDXFLineType( PLOT_DASH_TYPE aType ) { switch( aType ) { case PLOT_DASH_TYPE::DEFAULT: case PLOT_DASH_TYPE::SOLID: return "CONTINUOUS"; case PLOT_DASH_TYPE::DASH: return "DASHED"; case PLOT_DASH_TYPE::DOT: return "DOTTED"; case PLOT_DASH_TYPE::DASHDOT: return "DASHDOT"; default: wxFAIL_MSG( "Unhandled PLOT_DASH_TYPE" ); return "CONTINUOUS"; } } // A helper function to create a color name acceptable in DXF files // DXF files do not use a RGB definition static wxString getDXFColorName( const COLOR4D& aColor ) { EDA_COLOR_T color = COLOR4D::FindNearestLegacyColor( int( aColor.r * 255 ), int( aColor.g * 255 ), int( aColor.b * 255 ) ); wxString cname( dxf_layer[color].name ); return cname; } void DXF_PLOTTER::SetUnits( DXF_UNITS aUnit ) { m_plotUnits = aUnit; switch( aUnit ) { case DXF_UNITS::MILLIMETERS: m_unitScalingFactor = 0.00254; m_measurementDirective = 1; break; case DXF_UNITS::INCHES: default: m_unitScalingFactor = 0.0001; m_measurementDirective = 0; } } void DXF_PLOTTER::SetViewport( const wxPoint& aOffset, double aIusPerDecimil, double aScale, bool aMirror ) { m_plotOffset = aOffset; m_plotScale = aScale; /* DXF paper is 'virtual' so there is no need of a paper size. Also this way we can handle the aux origin which can be useful (for example when aligning to a mechanical drawing) */ m_paperSize.x = 0; m_paperSize.y = 0; /* Like paper size DXF units are abstract too. Anyway there is a * system variable (MEASUREMENT) which will be set to 0 to indicate * english units */ m_IUsPerDecimil = aIusPerDecimil; m_iuPerDeviceUnit = 1.0 / aIusPerDecimil; // Gives a DXF in decimils m_iuPerDeviceUnit *= GetUnitScaling(); // Get the scaling factor for the current units m_plotMirror = false; // No mirroring on DXF m_currentColor = COLOR4D::BLACK; } bool DXF_PLOTTER::StartPlot() { wxASSERT( m_outputFile ); // DXF HEADER - Boilerplate // Defines the minimum for drawing i.e. the angle system and the // 4 linetypes (CONTINUOUS, DOTDASH, DASHED and DOTTED) fprintf( m_outputFile, " 0\n" "SECTION\n" " 2\n" "HEADER\n" " 9\n" "$ANGBASE\n" " 50\n" "0.0\n" " 9\n" "$ANGDIR\n" " 70\n" "1\n" " 9\n" "$MEASUREMENT\n" " 70\n" "%u\n" " 0\n" "ENDSEC\n" " 0\n" "SECTION\n" " 2\n" "TABLES\n" " 0\n" "TABLE\n" " 2\n" "LTYPE\n" " 70\n" "4\n" " 0\n" "LTYPE\n" " 5\n" "40F\n" " 2\n" "CONTINUOUS\n" " 70\n" "0\n" " 3\n" "Solid line\n" " 72\n" "65\n" " 73\n" "0\n" " 40\n" "0.0\n" " 0\n" "LTYPE\n" " 5\n" "410\n" " 2\n" "DASHDOT\n" " 70\n" "0\n" " 3\n" "Dash Dot ____ _ ____ _\n" " 72\n" "65\n" " 73\n" "4\n" " 40\n" "2.0\n" " 49\n" "1.25\n" " 49\n" "-0.25\n" " 49\n" "0.25\n" " 49\n" "-0.25\n" " 0\n" "LTYPE\n" " 5\n" "411\n" " 2\n" "DASHED\n" " 70\n" "0\n" " 3\n" "Dashed __ __ __ __ __\n" " 72\n" "65\n" " 73\n" "2\n" " 40\n" "0.75\n" " 49\n" "0.5\n" " 49\n" "-0.25\n" " 0\n" "LTYPE\n" " 5\n" "43B\n" " 2\n" "DOTTED\n" " 70\n" "0\n" " 3\n" "Dotted . . . .\n" " 72\n" "65\n" " 73\n" "2\n" " 40\n" "0.2\n" " 49\n" "0.0\n" " 49\n" "-0.2\n" " 0\n" "ENDTAB\n", GetMeasurementDirective() ); // Text styles table // Defines 4 text styles, one for each bold/italic combination fputs( " 0\n" "TABLE\n" " 2\n" "STYLE\n" " 70\n" "4\n", m_outputFile ); static const char *style_name[4] = {"KICAD", "KICADB", "KICADI", "KICADBI"}; for(int i = 0; i < 4; i++ ) { fprintf( m_outputFile, " 0\n" "STYLE\n" " 2\n" "%s\n" // Style name " 70\n" "0\n" // Standard flags " 40\n" "0\n" // Non-fixed height text " 41\n" "1\n" // Width factor (base) " 42\n" "1\n" // Last height (mandatory) " 50\n" "%g\n" // Oblique angle " 71\n" "0\n" // Generation flags (default) " 3\n" // The standard ISO font (when kicad is build with it // the dxf text in acad matches *perfectly*) "isocp.shx\n", // Font name (when not bigfont) // Apply a 15 degree angle to italic text style_name[i], i < 2 ? 0 : DXF_OBLIQUE_ANGLE ); } EDA_COLOR_T numLayers = NBCOLORS; // If printing in monochrome, only output the black layer if( !GetColorMode() ) numLayers = static_cast( 1 ); // Layer table - one layer per color fprintf( m_outputFile, " 0\n" "ENDTAB\n" " 0\n" "TABLE\n" " 2\n" "LAYER\n" " 70\n" "%d\n", numLayers ); /* The layer/colors palette. The acad/DXF palette is divided in 3 zones: - The primary colors (1 - 9) - An HSV zone (10-250, 5 values x 2 saturations x 10 hues - Greys (251 - 255) */ wxASSERT( numLayers <= NBCOLORS ); for( EDA_COLOR_T i = BLACK; i < numLayers; i = static_cast( int( i ) + 1 ) ) { fprintf( m_outputFile, " 0\n" "LAYER\n" " 2\n" "%s\n" // Layer name " 70\n" "0\n" // Standard flags " 62\n" "%d\n" // Color number " 6\n" "CONTINUOUS\n",// Linetype name dxf_layer[i].name, dxf_layer[i].color ); } // End of layer table, begin entities fputs( " 0\n" "ENDTAB\n" " 0\n" "ENDSEC\n" " 0\n" "SECTION\n" " 2\n" "ENTITIES\n", m_outputFile ); return true; } bool DXF_PLOTTER::EndPlot() { wxASSERT( m_outputFile ); // DXF FOOTER fputs( " 0\n" "ENDSEC\n" " 0\n" "EOF\n", m_outputFile ); fclose( m_outputFile ); m_outputFile = nullptr; return true; } void DXF_PLOTTER::SetColor( const COLOR4D& color ) { if( ( m_colorMode ) || ( color == COLOR4D::BLACK ) || ( color == COLOR4D::WHITE ) ) { m_currentColor = color; } else { m_currentColor = COLOR4D::BLACK; } } void DXF_PLOTTER::Rect( const wxPoint& p1, const wxPoint& p2, FILL_T fill, int width ) { wxASSERT( m_outputFile ); MoveTo( p1 ); LineTo( wxPoint( p1.x, p2.y ) ); LineTo( wxPoint( p2.x, p2.y ) ); LineTo( wxPoint( p2.x, p1.y ) ); FinishTo( wxPoint( p1.x, p1.y ) ); } void DXF_PLOTTER::Circle( const wxPoint& centre, int diameter, FILL_T fill, int width ) { wxASSERT( m_outputFile ); double radius = userToDeviceSize( diameter / 2 ); DPOINT centre_dev = userToDeviceCoordinates( centre ); if( radius > 0 ) { wxString cname = getDXFColorName( m_currentColor ); if( fill == FILL_T::NO_FILL ) { fprintf( m_outputFile, "0\nCIRCLE\n8\n%s\n10\n%g\n20\n%g\n40\n%g\n", TO_UTF8( cname ), centre_dev.x, centre_dev.y, radius ); } else if( fill == FILL_T::FILLED_SHAPE ) { double r = radius*0.5; fprintf( m_outputFile, "0\nPOLYLINE\n" ); fprintf( m_outputFile, "8\n%s\n66\n1\n70\n1\n", TO_UTF8( cname ) ); fprintf( m_outputFile, "40\n%g\n41\n%g\n", radius, radius); fprintf( m_outputFile, "0\nVERTEX\n8\n%s\n", TO_UTF8( cname ) ); fprintf( m_outputFile, "10\n%g\n 20\n%g\n42\n1.0\n", centre_dev.x-r, centre_dev.y ); fprintf( m_outputFile, "0\nVERTEX\n8\n%s\n", TO_UTF8( cname ) ); fprintf( m_outputFile, "10\n%g\n 20\n%g\n42\n1.0\n", centre_dev.x+r, centre_dev.y ); fprintf( m_outputFile, "0\nSEQEND\n"); } } } void DXF_PLOTTER::PlotPoly( const std::vector& aCornerList, FILL_T aFill, int aWidth, void* aData ) { if( aCornerList.size() <= 1 ) return; unsigned last = aCornerList.size() - 1; // Plot outlines with lines (thickness = 0) to define the polygon if( aWidth <= 0 ) { MoveTo( aCornerList[0] ); for( unsigned ii = 1; ii < aCornerList.size(); ii++ ) LineTo( aCornerList[ii] ); // Close polygon if 'fill' requested if( aFill != FILL_T::NO_FILL ) { if( aCornerList[last] != aCornerList[0] ) LineTo( aCornerList[0] ); } PenFinish(); return; } // if the polygon outline has thickness, and is not filled // (i.e. is a polyline) plot outlines with thick segments if( aWidth > 0 && aFill == FILL_T::NO_FILL ) { MoveTo( aCornerList[0] ); for( unsigned ii = 1; ii < aCornerList.size(); ii++ ) ThickSegment( aCornerList[ii-1], aCornerList[ii], aWidth, FILLED, nullptr ); return; } // The polygon outline has thickness, and is filled // Build and plot the polygon which contains the initial // polygon and its thick outline SHAPE_POLY_SET bufferOutline; SHAPE_POLY_SET bufferPolybase; bufferPolybase.NewOutline(); // enter outline as polygon: for( unsigned ii = 1; ii < aCornerList.size(); ii++ ) { TransformOvalToPolygon( bufferOutline, aCornerList[ ii - 1 ], aCornerList[ ii ], aWidth, GetPlotterArcHighDef(), ERROR_INSIDE ); } // enter the initial polygon: for( unsigned ii = 0; ii < aCornerList.size(); ii++ ) { bufferPolybase.Append( aCornerList[ii] ); } // Merge polygons to build the polygon which contains the initial // polygon and its thick outline // create the outline which contains thick outline: bufferPolybase.BooleanAdd( bufferOutline, SHAPE_POLY_SET::PM_FAST ); bufferPolybase.Fracture( SHAPE_POLY_SET::PM_FAST ); if( bufferPolybase.OutlineCount() < 1 ) // should not happen return; const SHAPE_LINE_CHAIN& path = bufferPolybase.COutline( 0 ); if( path.PointCount() < 2 ) // should not happen return; // Now, output the final polygon to DXF file: last = path.PointCount() - 1; VECTOR2I point = path.CPoint( 0 ); wxPoint startPoint( point.x, point.y ); MoveTo( startPoint ); for( int ii = 1; ii < path.PointCount(); ii++ ) { point = path.CPoint( ii ); LineTo( wxPoint( point.x, point.y ) ); } // Close polygon, if needed point = path.CPoint( last ); wxPoint endPoint( point.x, point.y ); if( endPoint != startPoint ) LineTo( startPoint ); PenFinish(); } void DXF_PLOTTER::PenTo( const wxPoint& pos, char plume ) { wxASSERT( m_outputFile ); if( plume == 'Z' ) { return; } DPOINT pos_dev = userToDeviceCoordinates( pos ); DPOINT pen_lastpos_dev = userToDeviceCoordinates( m_penLastpos ); if( m_penLastpos != pos && plume == 'D' ) { wxASSERT( m_currentLineType >= PLOT_DASH_TYPE::FIRST_TYPE && m_currentLineType <= PLOT_DASH_TYPE::LAST_TYPE ); // DXF LINE wxString cname = getDXFColorName( m_currentColor ); const char* lname = getDXFLineType( static_cast( m_currentLineType ) ); fprintf( m_outputFile, "0\nLINE\n8\n%s\n6\n%s\n10\n%g\n20\n%g\n11\n%g\n21\n%g\n", TO_UTF8( cname ), lname, pen_lastpos_dev.x, pen_lastpos_dev.y, pos_dev.x, pos_dev.y ); } m_penLastpos = pos; } void DXF_PLOTTER::SetDash( PLOT_DASH_TYPE aDashed ) { wxASSERT( aDashed >= PLOT_DASH_TYPE::FIRST_TYPE && aDashed <= PLOT_DASH_TYPE::LAST_TYPE ); m_currentLineType = aDashed; } void DXF_PLOTTER::ThickSegment( const wxPoint& aStart, const wxPoint& aEnd, int aWidth, OUTLINE_MODE aPlotMode, void* aData ) { if( aPlotMode == SKETCH ) { std::vector cornerList; SHAPE_POLY_SET outlineBuffer; TransformOvalToPolygon( outlineBuffer, aStart, aEnd, aWidth, GetPlotterArcHighDef(), ERROR_INSIDE ); const SHAPE_LINE_CHAIN& path = outlineBuffer.COutline( 0 ); cornerList.reserve( path.PointCount() ); for( int jj = 0; jj < path.PointCount(); jj++ ) cornerList.emplace_back( path.CPoint( jj ).x, path.CPoint( jj ).y ); // Ensure the polygon is closed if( cornerList[0] != cornerList[cornerList.size() - 1] ) cornerList.push_back( cornerList[0] ); PlotPoly( cornerList, FILL_T::NO_FILL ); } else { MoveTo( aStart ); FinishTo( aEnd ); } } void DXF_PLOTTER::Arc( const wxPoint& centre, double StAngle, double EndAngle, int radius, FILL_T fill, int width ) { wxASSERT( m_outputFile ); if( radius <= 0 ) return; // In DXF, arcs are drawn CCW. // In Kicad, arcs are CW or CCW // If StAngle > EndAngle, it is CW. So transform it to CCW if( StAngle > EndAngle ) { std::swap( StAngle, EndAngle ); } DPOINT centre_dev = userToDeviceCoordinates( centre ); double radius_dev = userToDeviceSize( radius ); // Emit a DXF ARC entity wxString cname = getDXFColorName( m_currentColor ); fprintf( m_outputFile, "0\nARC\n8\n%s\n10\n%g\n20\n%g\n40\n%g\n50\n%g\n51\n%g\n", TO_UTF8( cname ), centre_dev.x, centre_dev.y, radius_dev, StAngle / 10.0, EndAngle / 10.0 ); } void DXF_PLOTTER::FlashPadOval( const wxPoint& pos, const wxSize& aSize, double orient, OUTLINE_MODE trace_mode, void* aData ) { wxASSERT( m_outputFile ); wxSize size( aSize ); /* The chip is reduced to an oval tablet with size.y > size.x * (Oval vertical orientation 0) */ if( size.x > size.y ) { std::swap( size.x, size.y ); orient = AddAngles( orient, 900 ); } sketchOval( pos, size, orient, -1 ); } void DXF_PLOTTER::FlashPadCircle( const wxPoint& pos, int diametre, OUTLINE_MODE trace_mode, void* aData ) { wxASSERT( m_outputFile ); Circle( pos, diametre, FILL_T::NO_FILL ); } void DXF_PLOTTER::FlashPadRect( const wxPoint& pos, const wxSize& padsize, double orient, OUTLINE_MODE trace_mode, void* aData ) { wxASSERT( m_outputFile ); wxSize size; int ox, oy, fx, fy; size.x = padsize.x / 2; size.y = padsize.y / 2; if( size.x < 0 ) size.x = 0; if( size.y < 0 ) size.y = 0; // If a dimension is zero, the trace is reduced to 1 line if( size.x == 0 ) { ox = pos.x; oy = pos.y - size.y; RotatePoint( &ox, &oy, pos.x, pos.y, orient ); fx = pos.x; fy = pos.y + size.y; RotatePoint( &fx, &fy, pos.x, pos.y, orient ); MoveTo( wxPoint( ox, oy ) ); FinishTo( wxPoint( fx, fy ) ); return; } if( size.y == 0 ) { ox = pos.x - size.x; oy = pos.y; RotatePoint( &ox, &oy, pos.x, pos.y, orient ); fx = pos.x + size.x; fy = pos.y; RotatePoint( &fx, &fy, pos.x, pos.y, orient ); MoveTo( wxPoint( ox, oy ) ); FinishTo( wxPoint( fx, fy ) ); return; } ox = pos.x - size.x; oy = pos.y - size.y; RotatePoint( &ox, &oy, pos.x, pos.y, orient ); MoveTo( wxPoint( ox, oy ) ); fx = pos.x - size.x; fy = pos.y + size.y; RotatePoint( &fx, &fy, pos.x, pos.y, orient ); LineTo( wxPoint( fx, fy ) ); fx = pos.x + size.x; fy = pos.y + size.y; RotatePoint( &fx, &fy, pos.x, pos.y, orient ); LineTo( wxPoint( fx, fy ) ); fx = pos.x + size.x; fy = pos.y - size.y; RotatePoint( &fx, &fy, pos.x, pos.y, orient ); LineTo( wxPoint( fx, fy ) ); FinishTo( wxPoint( ox, oy ) ); } void DXF_PLOTTER::FlashPadRoundRect( const wxPoint& aPadPos, const wxSize& aSize, int aCornerRadius, double aOrient, OUTLINE_MODE aTraceMode, void* aData ) { SHAPE_POLY_SET outline; TransformRoundChamferedRectToPolygon( outline, aPadPos, aSize, aOrient, aCornerRadius, 0.0, 0, 0, GetPlotterArcHighDef(), ERROR_INSIDE ); // TransformRoundRectToPolygon creates only one convex polygon SHAPE_LINE_CHAIN& poly = outline.Outline( 0 ); MoveTo( wxPoint( poly.CPoint( 0 ).x, poly.CPoint( 0 ).y ) ); for( int ii = 1; ii < poly.PointCount(); ++ii ) LineTo( wxPoint( poly.CPoint( ii ).x, poly.CPoint( ii ).y ) ); FinishTo( wxPoint( poly.CPoint( 0 ).x, poly.CPoint( 0 ).y ) ); } void DXF_PLOTTER::FlashPadCustom( const wxPoint& aPadPos, const wxSize& aSize, double aOrient, SHAPE_POLY_SET* aPolygons, OUTLINE_MODE aTraceMode, void* aData ) { for( int cnt = 0; cnt < aPolygons->OutlineCount(); ++cnt ) { SHAPE_LINE_CHAIN& poly = aPolygons->Outline( cnt ); MoveTo( wxPoint( poly.CPoint( 0 ).x, poly.CPoint( 0 ).y ) ); for( int ii = 1; ii < poly.PointCount(); ++ii ) LineTo( wxPoint( poly.CPoint( ii ).x, poly.CPoint( ii ).y ) ); FinishTo( wxPoint( poly.CPoint( 0 ).x, poly.CPoint( 0 ).y ) ); } } void DXF_PLOTTER::FlashPadTrapez( const wxPoint& aPadPos, const wxPoint *aCorners, double aPadOrient, OUTLINE_MODE aTrace_Mode, void* aData ) { wxASSERT( m_outputFile ); wxPoint coord[4]; /* coord actual corners of a trapezoidal trace */ for( int ii = 0; ii < 4; ii++ ) { coord[ii] = aCorners[ii]; RotatePoint( &coord[ii], aPadOrient ); coord[ii] += aPadPos; } // Plot edge: MoveTo( coord[0] ); LineTo( coord[1] ); LineTo( coord[2] ); LineTo( coord[3] ); FinishTo( coord[0] ); } void DXF_PLOTTER::FlashRegularPolygon( const wxPoint& aShapePos, int aRadius, int aCornerCount, double aOrient, OUTLINE_MODE aTraceMode, void* aData ) { // Do nothing wxASSERT( 0 ); } /** * Check if a given string contains non-ASCII characters. * * @fixme The performance of this code is really poor, but in this case it can be * acceptable because the plot operation is not called very often. * * @param string String to check. * @return true if it contains some non-ASCII character, false if all characters are * inside ASCII range (<=255). */ bool containsNonAsciiChars( const wxString& string ) { for( unsigned i = 0; i < string.length(); i++ ) { wchar_t ch = string[i]; if( ch > 255 ) return true; } return false; } void DXF_PLOTTER::Text( const wxPoint& aPos, const COLOR4D& aColor, const wxString& aText, double aOrient, const wxSize& aSize, enum EDA_TEXT_HJUSTIFY_T aH_justify, enum EDA_TEXT_VJUSTIFY_T aV_justify, int aWidth, bool aItalic, bool aBold, bool aMultilineAllowed, void* aData ) { // Fix me: see how to use DXF text mode for multiline texts if( aMultilineAllowed && !aText.Contains( wxT( "\n" ) ) ) aMultilineAllowed = false; // the text has only one line. bool processSuperSub = aText.Contains( wxT( "^{" ) ) || aText.Contains( wxT( "_{" ) ); if( m_textAsLines || containsNonAsciiChars( aText ) || aMultilineAllowed || processSuperSub ) { // output text as graphics. // Perhaps multiline texts could be handled as DXF text entity // but I do not want spend time about this (JPC) PLOTTER::Text( aPos, aColor, aText, aOrient, aSize, aH_justify, aV_justify, aWidth, aItalic, aBold, aMultilineAllowed ); } else { /* Emit text as a text entity. This loses formatting and shape but it's more useful as a CAD object */ DPOINT origin_dev = userToDeviceCoordinates( aPos ); SetColor( aColor ); wxString cname = getDXFColorName( m_currentColor ); DPOINT size_dev = userToDeviceSize( aSize ); int h_code = 0, v_code = 0; switch( aH_justify ) { case GR_TEXT_HJUSTIFY_LEFT: h_code = 0; break; case GR_TEXT_HJUSTIFY_CENTER: h_code = 1; break; case GR_TEXT_HJUSTIFY_RIGHT: h_code = 2; break; } switch( aV_justify ) { case GR_TEXT_VJUSTIFY_TOP: v_code = 3; break; case GR_TEXT_VJUSTIFY_CENTER: v_code = 2; break; case GR_TEXT_VJUSTIFY_BOTTOM: v_code = 1; break; } // Position, size, rotation and alignment // The two alignment point usages is somewhat idiot (see the DXF ref) // Anyway since we don't use the fit/aligned options, they're the same fprintf( m_outputFile, " 0\n" "TEXT\n" " 7\n" "%s\n" // Text style " 8\n" "%s\n" // Layer name " 10\n" "%g\n" // First point X " 11\n" "%g\n" // Second point X " 20\n" "%g\n" // First point Y " 21\n" "%g\n" // Second point Y " 40\n" "%g\n" // Text height " 41\n" "%g\n" // Width factor " 50\n" "%g\n" // Rotation " 51\n" "%g\n" // Oblique angle " 71\n" "%d\n" // Mirror flags " 72\n" "%d\n" // H alignment " 73\n" "%d\n", // V alignment aBold ? (aItalic ? "KICADBI" : "KICADB") : (aItalic ? "KICADI" : "KICAD"), TO_UTF8( cname ), origin_dev.x, origin_dev.x, origin_dev.y, origin_dev.y, size_dev.y, fabs( size_dev.x / size_dev.y ), aOrient / 10.0, aItalic ? DXF_OBLIQUE_ANGLE : 0, size_dev.x < 0 ? 2 : 0, // X mirror flag h_code, v_code ); /* There are two issue in emitting the text: - Our overline character (~) must be converted to the appropriate control sequence %%O or %%o - Text encoding in DXF is more or less unspecified since depends on the DXF declared version, the acad version reading it *and* some system variables to be put in the header handled only by newer acads Also before R15 unicode simply is not supported (you need to use bigfonts which are a massive PITA). Common denominator solution: use Latin1 (and however someone could choke on it, anyway). Sorry for the extended latin people. If somewant want to try fixing this recent version seems to use UTF-8 (and not UCS2 like the rest of Windows) XXX Actually there is a *third* issue: older DXF formats are limited to 255 bytes records (it was later raised to 2048); since I'm lazy and text so long is not probable I just don't implement this rule. If someone is interested in fixing this, you have to emit the first partial lines with group code 3 (max 250 bytes each) and then finish with a group code 1 (less than 250 bytes). The DXF refs explains it in no more details... */ int braceNesting = 0; int overbarDepth = -1; fputs( " 1\n", m_outputFile ); for( unsigned int i = 0; i < aText.length(); i++ ) { /* Here I do a bad thing: writing the output one byte at a time! but today I'm lazy and I have no idea on how to coerce a Unicode wxString to spit out latin1 encoded text ... At least stdio is *supposed* to do output buffering, so there is hope is not too slow */ wchar_t ch = aText[i]; if( ch > 255 ) { // I can't encode this... putc( '?', m_outputFile ); } else { if( aText[i] == '~' && i+1 < aText.length() && aText[i+1] == '{' ) { fputs( "%%o", m_outputFile ); overbarDepth = braceNesting; // Skip the '{' i++; continue; } else if( aText[i] == '{' ) { braceNesting++; } else if( aText[i] == '}' ) { if( braceNesting > 0 ) braceNesting--; if( braceNesting == overbarDepth ) { fputs( "%%O", m_outputFile ); overbarDepth = -1; continue; } } putc( ch, m_outputFile ); } } putc( '\n', m_outputFile ); } }