kicad/pcbnew/exporters/gerber_placefile_writer.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2019 Jean_Pierre Charras <jp.charras at wanadoo.fr>
* Copyright (C) 1992-2022 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 3 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, see <http://www.gnu.org/licenses/>.
*/
/**
* @file gerber_placefile_writer.cpp
* @brief Functions to create place files in gerber X2 format.
*/
#include "gerber_placefile_writer.h"
#include <vector>
#include <plotters/plotter_gerber.h>
#include <string_utils.h>
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#include <locale_io.h>
#include <macros.h>
#include <board.h>
#include <board_design_settings.h>
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#include <pcb_shape.h>
#include <pcbplot.h>
#include <wildcards_and_files_ext.h>
#include <gbr_metadata.h>
#include <footprint.h>
#include <pad.h>
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#include <fp_shape.h>
PLACEFILE_GERBER_WRITER::PLACEFILE_GERBER_WRITER( BOARD* aPcb )
{
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m_pcb = aPcb;
m_plotPad1Marker = true; // Place a marker to pin 1 (or A1) position
m_plotOtherPadsMarker = true; // Place a marker to other pins position
m_layer = PCB_LAYER_ID::UNDEFINED_LAYER; // No layer set
}
int PLACEFILE_GERBER_WRITER::CreatePlaceFile( wxString& aFullFilename, PCB_LAYER_ID aLayer,
bool aIncludeBrdEdges )
{
m_layer = aLayer;
PCB_PLOT_PARAMS plotOpts = m_pcb->GetPlotOptions();
if( plotOpts.GetUseAuxOrigin() )
m_offset = m_pcb->GetDesignSettings().GetAuxOrigin();
// Collect footprints on the right layer
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std::vector<FOOTPRINT*> fp_list;
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for( FOOTPRINT* footprint : m_pcb->Footprints() )
{
if( footprint->GetAttributes() & FP_EXCLUDE_FROM_POS_FILES )
continue;
if( footprint->GetLayer() == aLayer )
fp_list.push_back( footprint );
}
LOCALE_IO dummy_io; // Use the standard notation for float numbers
GERBER_PLOTTER plotter;
// Gerber drill file imply X2 format:
plotter.UseX2format( true );
plotter.UseX2NetAttributes( true );
// Add the standard X2 header, without FileFunction
AddGerberX2Header( &plotter, m_pcb );
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plotter.SetViewport( m_offset, pcbIUScale.IU_PER_MILS/10, /* scale */ 1.0, /* mirror */false );
// 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 P&P files
// %TF.FileFunction,Component,Ln,[top][bottom]*%
wxString text;
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text.Printf( wxT( "%%TF.FileFunction,Component,L%d,%s*%%" ),
aLayer == B_Cu ? m_pcb->GetCopperLayerCount() : 1,
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aLayer == B_Cu ? wxT( "Bot" ) : wxT( "Top" ) );
plotter.AddLineToHeader( text );
// Add file polarity (positive)
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text = wxT( "%TF.FilePolarity,Positive*%" );
plotter.AddLineToHeader( text );
if( !plotter.OpenFile( aFullFilename ) )
return -1;
// We need a BRDITEMS_PLOTTER to plot pads
BRDITEMS_PLOTTER brd_plotter( &plotter, m_pcb, plotOpts );
plotter.StartPlot( wxT( "1" ) );
// Some tools in P&P files have the type and size defined.
// they are position flash (round), pad1 flash (diamond), other pads flash (round)
// and component outline thickness (polyline)
int flash_position_shape_diam = pcbIUScale.mmToIU( 0.3 ); // defined size for position shape (circle)
int pad1_mark_size = pcbIUScale.mmToIU( 0.36 ); // defined size for pad 1 position (diamond)
int other_pads_mark_size = 0; // defined size for position shape (circle)
int line_thickness = pcbIUScale.mmToIU( 0.1 ); // defined size for component outlines
brd_plotter.SetLayerSet( LSET( aLayer ) );
int cmp_count = 0;
bool allowUtf8 = true;
// Plot components data: position, outlines, pad1 and other pads.
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for( FOOTPRINT* footprint : fp_list )
{
// Manage the aperture attribute component position:
GBR_METADATA gbr_metadata;
gbr_metadata.SetApertureAttrib( GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_CMP_POSITION );
// Add object attribute: component reference to flash (mainly useful for users)
// using quoted UTF8 string
wxString ref = ConvertNotAllowedCharsInGerber( footprint->Reference().GetShownText(),
allowUtf8, true );
gbr_metadata.SetCmpReference( ref );
gbr_metadata.SetNetAttribType( GBR_NETLIST_METADATA::GBR_NETINFO_CMP );
// Add P&P specific attributes
GBR_CMP_PNP_METADATA pnpAttrib;
// Add rotation info (rotation is CCW, in degrees):
pnpAttrib.m_Orientation = mapRotationAngle( footprint->GetOrientationDegrees(),
aLayer == B_Cu ? true : false );
pnpAttrib.m_MountType = GBR_CMP_PNP_METADATA::MOUNT_TYPE_UNSPECIFIED;
if( footprint->GetAttributes() & FP_THROUGH_HOLE )
pnpAttrib.m_MountType = GBR_CMP_PNP_METADATA::MOUNT_TYPE_TH;
else if( footprint->GetAttributes() & FP_SMD )
pnpAttrib.m_MountType = GBR_CMP_PNP_METADATA::MOUNT_TYPE_SMD;
// Add component value info:
pnpAttrib.m_Value = ConvertNotAllowedCharsInGerber( footprint->Value().GetShownText(),
allowUtf8, true );
// Add component footprint info:
wxString fp_info = FROM_UTF8( footprint->GetFPID().GetLibItemName().c_str() );
pnpAttrib.m_Footprint = ConvertNotAllowedCharsInGerber( fp_info, allowUtf8, true );
// Add footprint lib name:
fp_info = FROM_UTF8( footprint->GetFPID().GetLibNickname().c_str() );
pnpAttrib.m_LibraryName = ConvertNotAllowedCharsInGerber( fp_info, allowUtf8, true );
gbr_metadata.m_NetlistMetadata.SetExtraData( pnpAttrib.FormatCmpPnPMetadata() );
VECTOR2I flash_pos = footprint->GetPosition();
plotter.FlashPadCircle( flash_pos, flash_position_shape_diam, FILLED, &gbr_metadata );
gbr_metadata.m_NetlistMetadata.ClearExtraData();
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// Now some extra metadata is output, avoid blindly clearing the full metadata list
gbr_metadata.m_NetlistMetadata.m_TryKeepPreviousAttributes = true;
// We plot the footprint courtyard when possible.
// If not, the pads bounding box will be used.
bool useFpPadsBbox = true;
bool onBack = aLayer == B_Cu;
footprint->BuildCourtyardCaches();
int checkFlag = onBack ? MALFORMED_B_COURTYARD : MALFORMED_F_COURTYARD;
if( ( footprint->GetFlags() & checkFlag ) == 0 )
{
gbr_metadata.SetApertureAttrib(
GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_CMP_COURTYARD );
const SHAPE_POLY_SET& courtyard = footprint->GetCourtyard( aLayer );
for( int ii = 0; ii < courtyard.OutlineCount(); ii++ )
{
SHAPE_LINE_CHAIN poly = courtyard.Outline( ii );
if( !poly.PointCount() )
continue;
useFpPadsBbox = false;
plotter.PLOTTER::PlotPoly( poly, FILL_T::NO_FILL, line_thickness, &gbr_metadata );
}
}
if( useFpPadsBbox )
{
gbr_metadata.SetApertureAttrib(
GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_CMP_FOOTPRINT );
// bbox of fp pads, pos 0, rot 0, non flipped
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BOX2I bbox = footprint->GetFpPadsLocalBbox();
// negate bbox Y values if the fp is flipped (always flipped around X axis
// in Gerber P&P files).
int y_sign = aLayer == B_Cu ? -1 : 1;
SHAPE_LINE_CHAIN poly;
poly.Append( bbox.GetLeft(), y_sign*bbox.GetTop() );
poly.Append( bbox.GetLeft(), y_sign*bbox.GetBottom() );
poly.Append( bbox.GetRight(), y_sign*bbox.GetBottom() );
poly.Append( bbox.GetRight(), y_sign*bbox.GetTop() );
poly.SetClosed( true );
poly.Rotate( footprint->GetOrientation() );
poly.Move( footprint->GetPosition() );
plotter.PLOTTER::PlotPoly( poly, FILL_T::NO_FILL, line_thickness, &gbr_metadata );
}
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std::vector<PAD*>pad_key_list;
if( m_plotPad1Marker )
{
findPads1( pad_key_list, footprint );
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for( PAD* pad1 : pad_key_list )
{
gbr_metadata.SetApertureAttrib(
GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_PAD1_POSITION );
gbr_metadata.SetPadName( pad1->GetNumber(), allowUtf8, true );
gbr_metadata.SetPadPinFunction( pad1->GetPinFunction(), allowUtf8, true );
gbr_metadata.SetNetAttribType( GBR_NETLIST_METADATA::GBR_NETINFO_PAD );
// Flashes a diamond at pad position:
plotter.FlashRegularPolygon( pad1->GetPosition(), pad1_mark_size, 4, ANGLE_0,
FILLED, &gbr_metadata );
}
}
if( m_plotOtherPadsMarker )
{
gbr_metadata.SetApertureAttrib(
GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_PADOTHER_POSITION );
gbr_metadata.SetNetAttribType( GBR_NETLIST_METADATA::GBR_NETINFO_PAD );
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for( PAD* pad: footprint->Pads() )
{
bool skip_pad = false;
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for( PAD* pad1 : pad_key_list )
{
if( pad == pad1 ) // Already plotted
{
skip_pad = true;
break;
}
}
if( skip_pad )
continue;
// Skip also pads not on the current layer, like pads only
// on a tech layer
if( !pad->IsOnLayer( aLayer ) )
continue;
gbr_metadata.SetPadName( pad->GetNumber(), allowUtf8, true );
gbr_metadata.SetPadPinFunction( pad->GetPinFunction(), allowUtf8, true );
// Flashes a round, 0 sized round shape at pad position
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plotter.FlashPadCircle( pad->GetPosition(), other_pads_mark_size, FILLED,
&gbr_metadata );
}
}
plotter.ClearAllAttributes(); // Unconditionally close all .TO attributes
cmp_count++;
}
// Plot board outlines, if requested
if( aIncludeBrdEdges )
{
brd_plotter.SetLayerSet( LSET( Edge_Cuts ) );
// Plot edge layer and graphic items
brd_plotter.PlotBoardGraphicItems();
// Draw footprint other graphic items:
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for( FOOTPRINT* footprint : fp_list )
{
for( BOARD_ITEM* item : footprint->GraphicalItems() )
{
if( item->Type() == PCB_FP_SHAPE_T && item->GetLayer() == Edge_Cuts )
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brd_plotter.PlotFootprintShape( static_cast<FP_SHAPE*>( item ) );
}
}
}
plotter.EndPlot();
return cmp_count;
}
double PLACEFILE_GERBER_WRITER::mapRotationAngle( double aAngle, bool aIsFlipped )
{
// Convert a KiCad footprint orientation to gerber rotation, depending on the layer
// Gerber rotation is:
// rot angle > 0 for rot CW, seen from Top side
// same a Pcbnew for Top side
// (angle + 180) for Bottom layer i.e flipped around Y axis: X axis coordinates mirrored.
// because Pcbnew flip around the X axis : Y coord mirrored, that is similar to mirror
// around Y axis + 180 deg rotation
if( aIsFlipped )
{
double gbr_angle = 180.0 + aAngle;
// Normalize between -180 ... + 180 deg
// Not mandatory, but the angle is more easy to read
if( gbr_angle <= -180 )
gbr_angle += 360.0;
else if( gbr_angle > 180 )
gbr_angle -= 360.0;
return gbr_angle;
}
return aAngle;
}
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void PLACEFILE_GERBER_WRITER::findPads1( std::vector<PAD*>& aPadList, FOOTPRINT* aFootprint ) const
{
// Fint the pad "1" or pad "A1"
// this is possible only if only one pad is found
// useful to place a marker in this position
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for( PAD* pad : aFootprint->Pads() )
{
if( !pad->IsOnLayer( m_layer ) )
continue;
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if( pad->GetNumber() == wxT( "1" ) || pad->GetNumber() == wxT( "A1" ) )
aPadList.push_back( pad );
}
}
const wxString PLACEFILE_GERBER_WRITER::GetPlaceFileName( const wxString& aFullBaseFilename,
PCB_LAYER_ID aLayer ) const
{
// Gerber files extension is always .gbr.
// Therefore, to mark pnp files, add "-pnp" to the filename, and a layer id.
wxFileName fn = aFullBaseFilename;
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wxString post_id = wxT( "-pnp_" );
post_id += aLayer == B_Cu ? wxT( "bottom" ) : wxT( "top" );
fn.SetName( fn.GetName() + post_id );
fn.SetExt( GerberFileExtension );
return fn.GetFullPath();
}