kicad/pcbnew/exporters/gendrill_gerber_writer.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2017 Jean_Pierre Charras <jp.charras at wanadoo.fr>
* Copyright (C) 1992-2021 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
*/
/**
* @file gendrill_gerber_writer.cpp
* @brief Functions to create drill files in gerber X2 format.
*/
#include <plotters/plotter_gerber.h>
#include <string_utils.h>
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#include <locale_io.h>
#include <board.h>
#include <footprint.h>
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#include <pcb_track.h>
#include <pad.h>
#include <pcbplot.h>
#include <gendrill_gerber_writer.h>
#include <reporter.h>
#include <gbr_metadata.h>
// set to 1 to use flashed oblong holes, 0 to draw them by a line.
#define FLASH_OVAL_HOLE 1
GERBER_WRITER::GERBER_WRITER( BOARD* aPcb )
: GENDRILL_WRITER_BASE( aPcb )
{
m_zeroFormat = SUPPRESS_LEADING;
m_conversionUnits = 1.0;
m_unitsMetric = true;
m_drillFileExtension = "gbr";
m_merge_PTH_NPTH = false;
}
void GERBER_WRITER::CreateDrillandMapFilesSet( const wxString& aPlotDirectory, bool aGenDrill,
bool aGenMap, REPORTER* aReporter )
{
// Note: In Gerber drill files, NPTH and PTH are always separate files
m_merge_PTH_NPTH = false;
wxFileName fn;
wxString msg;
std::vector<DRILL_LAYER_PAIR> hole_sets = getUniqueLayerPairs();
// append a pair representing the NPTH set of holes, for separate drill files.
// (Gerber drill files are separate files for PTH and NPTH)
hole_sets.emplace_back( F_Cu, B_Cu );
for( std::vector<DRILL_LAYER_PAIR>::const_iterator it = hole_sets.begin();
it != hole_sets.end(); ++it )
{
DRILL_LAYER_PAIR pair = *it;
// For separate drill files, the last layer pair is the NPTH drill file.
bool doing_npth = ( it == hole_sets.end() - 1 );
buildHolesList( pair, doing_npth );
// The file is created if it has holes, or if it is the non plated drill file
// to be sure the NPTH file is up to date in separate files mode.
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// Also a PTH drill/map file is always created, to be sure at least one plated hole drill
// file is created (do not create any PTH drill file can be seen as not working drill
// generator).
if( getHolesCount() > 0 || doing_npth || pair == DRILL_LAYER_PAIR( F_Cu, B_Cu ) )
{
fn = getDrillFileName( pair, doing_npth, false );
fn.SetPath( aPlotDirectory );
if( aGenDrill )
{
wxString fullFilename = fn.GetFullPath();
int result = createDrillFile( fullFilename, doing_npth, pair );
if( result < 0 )
{
if( aReporter )
{
msg.Printf( _( "Failed to create file '%s'." ), fullFilename );
aReporter->Report( msg, RPT_SEVERITY_ERROR );
}
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break;
}
else
{
if( aReporter )
{
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msg.Printf( _( "Created file '%s'." ), fullFilename );
aReporter->Report( msg, RPT_SEVERITY_ACTION );
}
}
}
}
}
if( aGenMap )
CreateMapFilesSet( aPlotDirectory, aReporter );
if( aReporter )
aReporter->ReportTail( _( "Done." ), RPT_SEVERITY_INFO );
}
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#if !FLASH_OVAL_HOLE
// A helper class to transform an oblong hole to a segment
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static void convertOblong2Segment( wxSize aSize, double aOrient, VECTOR2I& aStart, VECTOR2I& aEnd );
#endif
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int GERBER_WRITER::createDrillFile( wxString& aFullFilename, bool aIsNpth,
DRILL_LAYER_PAIR aLayerPair )
{
int holes_count;
LOCALE_IO dummy; // Use the standard notation for double numbers
GERBER_PLOTTER plotter;
// Gerber drill file imply X2 format:
plotter.UseX2format( true );
plotter.UseX2NetAttributes( true );
plotter.DisableApertMacros( false );
// Add the standard X2 header, without FileFunction
AddGerberX2Header( &plotter, m_pcb );
plotter.SetViewport( m_offset, IU_PER_MILS/10, /* scale */ 1.0, /* mirror */false );
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// has meaning only for gerber plotter. Must be called only after SetViewport
plotter.SetGerberCoordinatesFormat( 6 );
plotter.SetCreator( wxT( "PCBNEW" ) );
// Add the standard X2 FileFunction for drill files
// %TF.FileFunction,Plated[NonPlated],layer1num,layer2num,PTH[NPTH][Blind][Buried],Drill[Route][Mixed]*%
wxString text = BuildFileFunctionAttributeString( aLayerPair,
aIsNpth
? TYPE_FILE::NPTH_FILE
: TYPE_FILE::PTH_FILE );
plotter.AddLineToHeader( text );
// Add file polarity (positive)
text = "%TF.FilePolarity,Positive*%";
plotter.AddLineToHeader( text );
if( !plotter.OpenFile( aFullFilename ) )
return -1;
plotter.StartPlot();
holes_count = 0;
VECTOR2I hole_pos;
bool last_item_is_via = true; // a flag to clear object attributes when a via hole is created.
for( unsigned ii = 0; ii < m_holeListBuffer.size(); ii++ )
{
HOLE_INFO& hole_descr = m_holeListBuffer[ii];
hole_pos = hole_descr.m_Hole_Pos;
// Manage the aperture attributes: in drill files 3 attributes can be used:
// "ViaDrill", only for vias, not pads
// "ComponentDrill", only for Through Holes pads
// "Slot" for oblong holes;
GBR_METADATA gbr_metadata;
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if( dyn_cast<const PCB_VIA*>( hole_descr.m_ItemParent ) )
{
gbr_metadata.SetApertureAttrib( GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_VIADRILL );
if( !last_item_is_via )
{
// be sure the current object attribute is cleared for vias
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plotter.EndBlock( nullptr );
}
last_item_is_via = true;
}
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else if( dyn_cast<const PAD*>( hole_descr.m_ItemParent ) )
{
last_item_is_via = false;
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const PAD* pad = dyn_cast<const PAD*>( hole_descr.m_ItemParent );
if( pad->GetProperty() == PAD_PROP::CASTELLATED )
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{
gbr_metadata.SetApertureAttrib(
GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_CASTELLATEDDRILL );
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}
else
{
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// Good practice of oblong pad holes (slots) is to use a specific aperture for
// routing, not used in drill commands.
if( hole_descr.m_Hole_Shape )
gbr_metadata.SetApertureAttrib(
GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_CMP_OBLONG_DRILL );
else
gbr_metadata.SetApertureAttrib(
GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_CMP_DRILL );
}
// Add object attribute: component reference to pads (mainly useful for users)
wxString ref = pad->GetParent()->GetReference();
gbr_metadata.SetCmpReference( ref );
gbr_metadata.SetNetAttribType( GBR_NETLIST_METADATA::GBR_NETINFO_CMP );
}
if( hole_descr.m_Hole_Shape )
{
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#if FLASH_OVAL_HOLE // set to 1 to use flashed oblong holes,
// 0 to draw them as a line.
plotter.FlashPadOval( hole_pos, hole_descr.m_Hole_Size, hole_descr.m_Hole_Orient,
FILLED, &gbr_metadata );
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#else
// Use routing for oblong hole (Slots)
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VECTOR2I start, end;
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convertOblong2Segment( hole_descr.m_Hole_Size, hole_descr.m_Hole_Orient, start, end );
int width = std::min( hole_descr.m_Hole_Size.x, hole_descr.m_Hole_Size.y );
if ( width == 0 )
continue;
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plotter.ThickSegment( start+hole_pos, end+hole_pos, width, FILLED, &gbr_metadata );
#endif
}
else
{
int diam = std::min( hole_descr.m_Hole_Size.x, hole_descr.m_Hole_Size.y );
plotter.FlashPadCircle( hole_pos, diam, FILLED, &gbr_metadata );
}
holes_count++;
}
plotter.EndPlot();
return holes_count;
}
#if !FLASH_OVAL_HOLE
void convertOblong2Segment( wxSize aSize, const EDA_ANGLE& aOrient, VECTOR2I& aStart,
VECTOR2I& aEnd )
{
wxSize size( aSize );
EDA_ANGLE orient( aOrient );
/* The pad will be drawn as an oblong shape with size.y > size.x
* (Oval vertical orientation 0)
*/
if( size.x > size.y )
{
std::swap( size.x, size.y );
orient += ANGLE_90;
}
int deltaxy = size.y - size.x; // distance between centers of the oval
aStart = VECTOR2I( 0, deltaxy / 2 );
RotatePoint( aStart, orient );
aEnd = VECTOR2I( 0, -deltaxy / 2 );
RotatePoint( aEnd, orient );
}
#endif
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void GERBER_WRITER::SetFormat( int aRightDigits )
{
/* Set conversion scale depending on drill file units */
m_conversionUnits = 1.0 / IU_PER_MM; // Gerber units = mm
// Set precision (unit is mm).
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m_precision.m_Lhs = 4;
m_precision.m_Rhs = aRightDigits == 6 ? 6 : 5;
}
const wxString GERBER_WRITER::getDrillFileName( DRILL_LAYER_PAIR aPair, bool aNPTH,
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bool aMerge_PTH_NPTH ) const
{
// Gerber files extension is always .gbr.
// Therefore, to mark drill files, add "-drl" to the filename.
wxFileName fname( GENDRILL_WRITER_BASE::getDrillFileName( aPair, aNPTH, aMerge_PTH_NPTH ) );
fname.SetName( fname.GetName() + "-drl" );
return fname.GetFullPath();
}