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kicad/utils/kicad2step/pcb/kicadpcb.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2016 Cirilo Bernardo <cirilo.bernardo@gmail.com>
* Copyright (C) 2020 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 "kicadpcb.h"
#include "kicadcurve.h"
#include "kicadfootprint.h"
#include "oce_utils.h"
#include <sexpr/sexpr.h>
#include <sexpr/sexpr_parser.h>
#include <wx/filename.h>
#include <wx/log.h>
#include <wx/stdpaths.h>
#include <wx/textctrl.h>
#include <wx/utils.h>
#include <iostream>
#include <memory>
#include <sstream>
#include <string>
#include <wx/wxcrtvararg.h>
/*
* GetKicadConfigPath() is taken from KiCad's common.cpp source:
* Copyright (C) 2014-2015 Jean-Pierre Charras, jp.charras at wanadoo.fr
* Copyright (C) 2008-2015 Wayne Stambaugh <stambaughw@gmail.com>
* Copyright (C) 1992-2015 KiCad Developers
*/
static wxString GetKicadConfigPath()
{
wxFileName cfgpath;
// From the wxWidgets wxStandardPaths::GetUserConfigDir() help:
// Unix: ~ (the home directory)
// Windows: "C:\Documents and Settings\username\Application Data"
// Mac: ~/Library/Preferences
cfgpath.AssignDir( wxStandardPaths::Get().GetUserConfigDir() );
#if !defined( __WINDOWS__ ) && !defined( __WXMAC__ )
wxString envstr;
if( !wxGetEnv( "XDG_CONFIG_HOME", &envstr ) || envstr.IsEmpty() )
{
// XDG_CONFIG_HOME is not set, so use the fallback
cfgpath.AppendDir( ".config" );
}
else
{
// Override the assignment above with XDG_CONFIG_HOME
cfgpath.AssignDir( envstr );
}
#endif
cfgpath.AppendDir( "kicad" );
if( !cfgpath.DirExists() )
{
cfgpath.Mkdir( wxS_DIR_DEFAULT, wxPATH_MKDIR_FULL );
}
return cfgpath.GetPath();
}
KICADPCB::KICADPCB()
{
wxFileName cfgdir( GetKicadConfigPath(), "" );
cfgdir.AppendDir( "3d" );
m_resolver.Set3DConfigDir( cfgdir.GetPath() );
m_thickness = 1.6;
m_pcb_model = nullptr;
m_minDistance = MIN_DISTANCE;
m_useGridOrigin = false;
m_useDrillOrigin = false;
m_hasGridOrigin = false;
m_hasDrillOrigin = false;
}
KICADPCB::~KICADPCB()
{
for( auto i : m_footprints )
delete i;
for( auto i : m_curves )
delete i;
delete m_pcb_model;
return;
}
bool KICADPCB::ReadFile( const wxString& aFileName )
{
wxFileName fname( aFileName );
if( fname.GetExt() != "kicad_pcb" )
{
ReportMessage( wxString::Format( "expecting extension kicad_pcb, got %s\n",
fname.GetExt() ) );
return false;
}
if( !fname.FileExists() )
{
ReportMessage( wxString::Format( "No such file: %s\n", aFileName ) );
return false;
}
fname.Normalize();
m_filename = fname.GetFullPath();
m_resolver.SetProjectDir( fname.GetPath() );
try
{
SEXPR::PARSER parser;
std::string infile( fname.GetFullPath().ToUTF8() );
std::unique_ptr<SEXPR::SEXPR> data( parser.ParseFromFile( infile ) );
if( !data )
{
ReportMessage( wxString::Format( "No data in file: %s\n", aFileName ) );
return false;
}
if( !parsePCB( data.get() ) )
return false;
}
catch( std::exception& e )
{
ReportMessage( wxString::Format( "error reading file: %s\n%s\n", aFileName, e.what() ) );
return false;
}
catch( ... )
{
ReportMessage( wxString::Format( "unexpected exception while reading file: %s\n",
aFileName ) );
return false;
}
return true;
}
bool KICADPCB::WriteSTEP( const wxString& aFileName )
{
if( m_pcb_model )
{
return m_pcb_model->WriteSTEP( aFileName );
}
return false;
}
#ifdef SUPPORTS_IGES
bool KICADPCB::WriteIGES( const wxString& aFileName )
{
if( m_pcb_model )
{
return m_pcb_model->WriteIGES( aFileName );
}
return false;
}
#endif
bool KICADPCB::parsePCB( SEXPR::SEXPR* data )
{
if( NULL == data )
return false;
if( data->IsList() )
{
size_t nc = data->GetNumberOfChildren();
SEXPR::SEXPR* child = data->GetChild( 0 );
std::string name = child->GetSymbol();
bool result = true;
for( size_t i = 1; i < nc && result; ++i )
{
child = data->GetChild( i );
if( !child->IsList() )
{
ReportMessage( wxString::Format( "corrupt PCB file (line %d)\n",
child->GetLineNumber() ) );
return false;
}
std::string symname( child->GetChild( 0 )->GetSymbol() );
if( symname == "general" )
result = result && parseGeneral( child );
else if( symname == "setup" )
result = result && parseSetup( child );
else if( symname == "layers" )
result = result && parseLayers( child );
else if( symname == "module" )
result = result && parseModule( child );
else if( symname == "footprint" )
result = result && parseModule( child );
else if( symname == "gr_arc" )
result = result && parseCurve( child, CURVE_ARC );
else if( symname == "gr_line" )
result = result && parseCurve( child, CURVE_LINE );
else if( symname == "gr_rect" )
result = result && parseRect( child );
else if( symname == "gr_poly" )
result = result && parsePolygon( child );
else if( symname == "gr_circle" )
result = result && parseCurve( child, CURVE_CIRCLE );
else if( symname == "gr_curve" )
result = result && parseCurve( child, CURVE_BEZIER );
}
return result;
}
ReportMessage( wxString::Format( "data is not a valid PCB file: %s\n", m_filename ) );
return false;
}
bool KICADPCB::parseGeneral( SEXPR::SEXPR* data )
{
size_t nc = data->GetNumberOfChildren();
SEXPR::SEXPR* child = NULL;
for( size_t i = 1; i < nc; ++i )
{
child = data->GetChild( i );
if( !child->IsList() )
{
ReportMessage( wxString::Format( "corrupt PCB file (line %d)\n",
child->GetLineNumber() ) );
return false;
}
// at the moment only the thickness is of interest in
// the general section
if( child->GetChild( 0 )->GetSymbol() != "thickness" )
continue;
m_thickness = child->GetChild( 1 )->GetDouble();
return true;
}
ReportMessage( wxString::Format( "corrupt PCB file (line %d)\n"
"no PCB thickness specified in general section\n",
child->GetLineNumber() ) );
return false;
}
bool KICADPCB::parseLayers( SEXPR::SEXPR* data )
{
size_t nc = data->GetNumberOfChildren();
SEXPR::SEXPR* child = NULL;
// Read the layername and the corresponding layer id list:
for( size_t i = 1; i < nc; ++i )
{
child = data->GetChild( i );
if( !child->IsList() )
{
ReportMessage( wxString::Format( "corrupt PCB file (line %d)\n",
child->GetLineNumber() ) );
return false;
}
std::string ref;
if( child->GetChild( 1 )->IsSymbol() )
ref = child->GetChild( 1 )->GetSymbol();
else
ref = child->GetChild( 1 )->GetString();
m_layersNames[ref] = child->GetChild( 0 )->GetInteger();
}
return true;
}
int KICADPCB::GetLayerId( std::string& aLayerName )
{
int lid = -1;
auto item = m_layersNames.find( aLayerName );
if( item != m_layersNames.end() )
lid = item->second;
return lid;
}
bool KICADPCB::parseSetup( SEXPR::SEXPR* data )
{
size_t nc = data->GetNumberOfChildren();
SEXPR::SEXPR* child = NULL;
for( size_t i = 1; i < nc; ++i )
{
child = data->GetChild( i );
if( !child->IsList() )
{
ReportMessage( wxString::Format(
"corrupt PCB file (line %d)\n", child->GetLineNumber() ) );
return false;
}
// at the moment only the Grid and Drill origins are of interest in
// the setup section
if( child->GetChild( 0 )->GetSymbol() == "grid_origin" )
{
if( child->GetNumberOfChildren() != 3 )
{
ReportMessage( wxString::Format(
"corrupt PCB file (line %d): grid_origin has %d children "
"(expected: 3)\n",
child->GetLineNumber(), child->GetNumberOfChildren() ) );
return false;
}
m_gridOrigin.x = child->GetChild( 1 )->GetDouble();
m_gridOrigin.y = child->GetChild( 2 )->GetDouble();
m_hasGridOrigin = true;
}
else if( child->GetChild( 0 )->GetSymbol() == "aux_axis_origin" )
{
if( child->GetNumberOfChildren() != 3 )
{
ReportMessage( wxString::Format(
"corrupt PCB file (line %d)m: aux_axis_origin has %d children "
"(expected: 3)\n",
child->GetLineNumber(), child->GetNumberOfChildren() ) );
return false;
}
m_drillOrigin.x = child->GetChild( 1 )->GetDouble();
m_drillOrigin.y = child->GetChild( 2 )->GetDouble();
m_hasDrillOrigin = true;
}
}
return true;
}
bool KICADPCB::parseModule( SEXPR::SEXPR* data )
{
KICADFOOTPRINT* footprint = new KICADFOOTPRINT( this );
if( !footprint->Read( data ) )
{
delete footprint;
return false;
}
m_footprints.push_back( footprint );
return true;
}
bool KICADPCB::parseRect( SEXPR::SEXPR* data )
{
KICADCURVE* rect = new KICADCURVE();
if( !rect->Read( data, CURVE_LINE ) )
{
delete rect;
return false;
}
// reject any curves not on the Edge.Cuts layer
if( rect->GetLayer() != LAYER_EDGE )
{
delete rect;
return true;
}
KICADCURVE* top = new KICADCURVE( *rect );
KICADCURVE* right = new KICADCURVE( *rect );
KICADCURVE* bottom = new KICADCURVE( *rect );
KICADCURVE* left = new KICADCURVE( *rect );
delete rect;
top->m_end.y = right->m_start.y;
m_curves.push_back( top );
right->m_start.x = bottom->m_end.x;
m_curves.push_back( right );
bottom->m_start.y = left->m_end.y;
m_curves.push_back( bottom );
left->m_end.x = top->m_start.x;
m_curves.push_back( left );
return true;
}
bool KICADPCB::parsePolygon( SEXPR::SEXPR* data )
{
KICADCURVE* poly = new KICADCURVE();
if( !poly->Read( data, CURVE_POLYGON ) )
{
delete poly;
return false;
}
// reject any curves not on the Edge.Cuts layer
if( poly->GetLayer() != LAYER_EDGE )
{
delete poly;
return true;
}
auto pts = poly->m_poly;
for( std::size_t ii = 1; ii < pts.size(); ++ii )
{
KICADCURVE* seg = new KICADCURVE();
seg->m_form = CURVE_LINE;
seg->m_layer = poly->GetLayer();
seg->m_start = pts[ii - 1];
seg->m_end = pts[ii];
m_curves.push_back( seg );
}
KICADCURVE* seg = new KICADCURVE();
seg->m_form = CURVE_LINE;
seg->m_layer = poly->GetLayer();
seg->m_start = pts.back();
seg->m_end = pts.front();
m_curves.push_back( seg );
return true;
}
bool KICADPCB::parseCurve( SEXPR::SEXPR* data, CURVE_TYPE aCurveType )
{
KICADCURVE* curve = new KICADCURVE();
if( !curve->Read( data, aCurveType ) )
{
delete curve;
return false;
}
// reject any curves not on the Edge.Cuts layer
if( curve->GetLayer() != LAYER_EDGE )
{
delete curve;
return true;
}
m_curves.push_back( curve );
return true;
}
bool KICADPCB::ComposePCB( bool aComposeVirtual, bool aSubstituteModels )
{
if( m_pcb_model )
return true;
if( m_footprints.empty() && m_curves.empty() )
{
ReportMessage( "Error: no PCB data (no footprint, no outline) to render\n" );
return false;
}
DOUBLET origin;
// Determine the coordinate system reference:
// Precedence of reference point is Drill Origin > Grid Origin > User Offset
if( m_useDrillOrigin && m_hasDrillOrigin )
{
origin = m_drillOrigin;
}
else if( m_useGridOrigin && m_hasDrillOrigin )
{
origin = m_gridOrigin;
}
else
{
origin = m_origin;
}
m_pcb_model = new PCBMODEL();
m_pcb_model->SetPCBThickness( m_thickness );
m_pcb_model->SetMinDistance( m_minDistance );
for( auto i : m_curves )
{
if( CURVE_NONE == i->m_form || LAYER_EDGE != i->m_layer )
continue;
// adjust the coordinate system
// Note: we negate the Y coordinates due to the fact in Pcbnew the Y axis
// is from top to bottom.
KICADCURVE lcurve = *i;
lcurve.m_start.y = -( lcurve.m_start.y - origin.y );
lcurve.m_end.y = -( lcurve.m_end.y - origin.y );
lcurve.m_start.x -= origin.x;
lcurve.m_end.x -= origin.x;
// used in bezier curves:
lcurve.m_bezierctrl1.y = -( lcurve.m_bezierctrl1.y - origin.y );
lcurve.m_bezierctrl1.x -= origin.x;
lcurve.m_bezierctrl2.y = -( lcurve.m_bezierctrl2.y - origin.y );
lcurve.m_bezierctrl2.x -= origin.x;
if( CURVE_ARC == lcurve.m_form )
lcurve.m_angle = -lcurve.m_angle;
m_pcb_model->AddOutlineSegment( &lcurve );
}
for( auto i : m_footprints )
i->ComposePCB( m_pcb_model, &m_resolver, origin, aComposeVirtual, aSubstituteModels );
ReportMessage( "Create PCB solid model\n" );
if( !m_pcb_model->CreatePCB() )
{
ReportMessage( "could not create PCB solid model\n" );
delete m_pcb_model;
m_pcb_model = NULL;
return false;
}
return true;
}
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