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578 lines
19 KiB
578 lines
19 KiB
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2022 Mark Roszko <mark.roszko@gmail.com>
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* Copyright (C) 2016 Cirilo Bernardo <cirilo.bernardo@gmail.com>
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* Copyright (C) 2016-2023 KiCad Developers, see AUTHORS.txt for contributors.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* or you may search the http://www.gnu.org website for the version 2 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "exporter_step.h"
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#include <board.h>
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#include <board_design_settings.h>
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#include <footprint.h>
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#include <pcb_track.h>
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#include <pcb_shape.h>
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#include <pad.h>
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#include <zone.h>
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#include <fp_lib_table.h>
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#include "step_pcb_model.h"
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#include <pgm_base.h>
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#include <base_units.h>
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#include <filename_resolver.h>
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#include <trace_helpers.h>
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#include <project_pcb.h>
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#include <Message.hxx> // OpenCascade messenger
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#include <Message_PrinterOStream.hxx> // OpenCascade output messenger
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#include <Standard_Failure.hxx> // In open cascade
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#include <Standard_Version.hxx>
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#include <wx/crt.h>
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#include <wx/log.h>
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#include <core/profile.h> // To use GetRunningMicroSecs or another profiling utility
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#define OCC_VERSION_MIN 0x070500
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#if OCC_VERSION_HEX < OCC_VERSION_MIN
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#include <Message_Messenger.hxx>
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#endif
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void ReportMessage( const wxString& aMessage )
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{
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wxPrintf( aMessage );
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fflush( stdout ); // Force immediate printing (needed on mingw)
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}
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class KiCadPrinter : public Message_Printer
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{
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public:
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KiCadPrinter( EXPORTER_STEP* aConverter ) : m_converter( aConverter ) {}
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protected:
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#if OCC_VERSION_HEX < OCC_VERSION_MIN
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virtual void Send( const TCollection_ExtendedString& theString,
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const Message_Gravity theGravity,
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const Standard_Boolean theToPutEol ) const override
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{
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Send( TCollection_AsciiString( theString ), theGravity, theToPutEol );
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}
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virtual void Send( const TCollection_AsciiString& theString,
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const Message_Gravity theGravity,
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const Standard_Boolean theToPutEol ) const override
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#else
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virtual void send( const TCollection_AsciiString& theString,
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const Message_Gravity theGravity ) const override
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#endif
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{
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if( theGravity >= Message_Warning
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|| ( wxLog::IsAllowedTraceMask( traceKiCad2Step ) && theGravity == Message_Info ) )
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{
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ReportMessage( theString.ToCString() );
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#if OCC_VERSION_HEX < OCC_VERSION_MIN
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if( theToPutEol )
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ReportMessage( wxT( "\n" ) );
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#else
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ReportMessage( wxT( "\n" ) );
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#endif
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}
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if( theGravity == Message_Warning )
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m_converter->SetWarn();
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if( theGravity >= Message_Alarm )
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m_converter->SetError();
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if( theGravity == Message_Fail )
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m_converter->SetFail();
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}
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private:
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EXPORTER_STEP* m_converter;
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};
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wxString EXPORTER_STEP_PARAMS::GetDefaultExportExtension()
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{
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switch( m_format )
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{
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case EXPORTER_STEP_PARAMS::FORMAT::STEP: return wxS( "step" ); break;
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case EXPORTER_STEP_PARAMS::FORMAT::GLB: return wxS( "glb" ); break;
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default: return wxEmptyString; // shouldn't happen
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}
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}
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wxString EXPORTER_STEP_PARAMS::GetFormatName()
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{
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switch( m_format )
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{
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// honestly these names shouldn't be translated since they are mostly industry standard acronyms
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case EXPORTER_STEP_PARAMS::FORMAT::STEP: return wxS( "STEP" ); break;
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case EXPORTER_STEP_PARAMS::FORMAT::GLB: return wxS("Binary GLTF" ); break;
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default: return wxEmptyString; // shouldn't happen
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}
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}
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EXPORTER_STEP::EXPORTER_STEP( BOARD* aBoard, const EXPORTER_STEP_PARAMS& aParams ) :
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m_params( aParams ),
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m_error( false ),
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m_fail( false ),
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m_warn( false ),
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m_board( aBoard ),
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m_pcbModel( nullptr ),
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m_boardThickness( DEFAULT_BOARD_THICKNESS_MM )
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{
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m_solderMaskColor = COLOR4D( 0.08, 0.20, 0.14, 0.83 );
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m_copperColor = COLOR4D( 0.7, 0.61, 0.0, 1.0 );
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// Init m_pcbBaseName to the board short filename (no path, no ext)
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// m_pcbName is used later to identify items in step file
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wxFileName fn( aBoard->GetFileName() );
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m_pcbBaseName = fn.GetName();
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m_resolver = std::make_unique<FILENAME_RESOLVER>();
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m_resolver->Set3DConfigDir( wxT( "" ) );
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// needed to add the project to the search stack
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m_resolver->SetProject( aBoard->GetProject() );
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m_resolver->SetProgramBase( &Pgm() );
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}
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EXPORTER_STEP::~EXPORTER_STEP()
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{
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}
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bool EXPORTER_STEP::buildFootprint3DShapes( FOOTPRINT* aFootprint, VECTOR2D aOrigin )
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{
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bool hasdata = false;
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// Dump the pad holes into the PCB
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for( PAD* pad : aFootprint->Pads() )
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{
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if( m_pcbModel->AddPadHole( pad, aOrigin ) )
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hasdata = true;
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if( ExportTracksAndVias() )
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{
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if( m_pcbModel->AddPadShape( pad, aOrigin ) )
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hasdata = true;
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}
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}
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// Build 3D shapes of the footprint graphic items on external layers:
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if( ExportTracksAndVias() )
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{
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int maxError = m_board->GetDesignSettings().m_MaxError;
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aFootprint->TransformFPShapesToPolySet( m_top_copper_shapes, F_Cu, 0, maxError, ERROR_INSIDE,
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false, /* include text */
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true, /* include shapes */
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false /* include private items */ );
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aFootprint->TransformFPShapesToPolySet( m_bottom_copper_shapes, B_Cu, 0, maxError, ERROR_INSIDE,
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false, /* include text */
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true, /* include shapes */
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false /* include private items */ );
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}
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if( ( !(aFootprint->GetAttributes() & (FP_THROUGH_HOLE|FP_SMD)) ) && !m_params.m_includeUnspecified )
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{
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return hasdata;
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}
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if( ( aFootprint->GetAttributes() & FP_DNP ) && !m_params.m_includeDNP )
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{
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return hasdata;
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}
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// Prefetch the library for this footprint
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// In case we need to resolve relative footprint paths
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wxString libraryName = aFootprint->GetFPID().GetLibNickname();
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wxString footprintBasePath = wxEmptyString;
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double posX = aFootprint->GetPosition().x - aOrigin.x;
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double posY = (aFootprint->GetPosition().y) - aOrigin.y;
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if( m_board->GetProject() )
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{
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try
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{
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// FindRow() can throw an exception
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const FP_LIB_TABLE_ROW* fpRow =
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PROJECT_PCB::PcbFootprintLibs( m_board->GetProject() )->FindRow( libraryName, false );
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if( fpRow )
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footprintBasePath = fpRow->GetFullURI( true );
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}
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catch( ... )
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{
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// Do nothing if the libraryName is not found in lib table
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}
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}
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// Exit early if we don't want to include footprint models
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if( m_params.m_boardOnly )
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{
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return hasdata;
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}
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VECTOR2D newpos( pcbIUScale.IUTomm( posX ), pcbIUScale.IUTomm( posY ) );
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for( const FP_3DMODEL& fp_model : aFootprint->Models() )
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{
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if( !fp_model.m_Show || fp_model.m_Filename.empty() )
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continue;
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std::vector<wxString> searchedPaths;
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wxString mname = m_resolver->ResolvePath( fp_model.m_Filename, footprintBasePath );
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if( !wxFileName::FileExists( mname ) )
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{
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ReportMessage( wxString::Format( wxT( "Could not add 3D model to %s.\n"
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"File not found: %s\n" ),
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aFootprint->GetReference(), mname ) );
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continue;
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}
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std::string fname( mname.ToUTF8() );
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std::string refName( aFootprint->GetReference().ToUTF8() );
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try
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{
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bool bottomSide = aFootprint->GetLayer() == B_Cu;
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// the rotation is stored in degrees but opencascade wants radians
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VECTOR3D modelRot = fp_model.m_Rotation;
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modelRot *= M_PI;
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modelRot /= 180.0;
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if( m_pcbModel->AddComponent( fname, refName, bottomSide,
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newpos,
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aFootprint->GetOrientation().AsRadians(),
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fp_model.m_Offset, modelRot,
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fp_model.m_Scale, m_params.m_substModels ) )
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{
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hasdata = true;
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}
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}
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catch( const Standard_Failure& e )
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{
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ReportMessage( wxString::Format( wxT( "Could not add 3D model to %s.\n"
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"OpenCASCADE error: %s\n" ),
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aFootprint->GetReference(), e.GetMessageString() ) );
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}
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}
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return hasdata;
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}
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bool EXPORTER_STEP::buildTrack3DShape( PCB_TRACK* aTrack, VECTOR2D aOrigin )
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{
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if( aTrack->Type() == PCB_VIA_T )
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{
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return m_pcbModel->AddViaShape( static_cast<const PCB_VIA*>( aTrack ), aOrigin );
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}
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PCB_LAYER_ID pcblayer = aTrack->GetLayer();
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if( pcblayer != F_Cu && pcblayer != B_Cu )
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return false;
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if( aTrack->Type() == PCB_ARC_T )
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{
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int maxError = m_board->GetDesignSettings().m_MaxError;
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if( pcblayer == F_Cu )
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aTrack->TransformShapeToPolygon( m_top_copper_shapes, pcblayer, 0, maxError, ERROR_INSIDE );
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else
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aTrack->TransformShapeToPolygon( m_bottom_copper_shapes, pcblayer, 0, maxError, ERROR_INSIDE );
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}
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else
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m_pcbModel->AddTrackSegment( aTrack, aOrigin );
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return true;
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}
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void EXPORTER_STEP::buildZones3DShape( VECTOR2D aOrigin )
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{
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for( ZONE* zone : m_board->Zones() )
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{
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for( PCB_LAYER_ID layer : zone->GetLayerSet().Seq() )
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{
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if( layer == F_Cu || layer == B_Cu )
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{
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SHAPE_POLY_SET copper_shape;
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zone->TransformSolidAreasShapesToPolygon( layer, copper_shape );
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copper_shape.Unfracture( SHAPE_POLY_SET::PM_STRICTLY_SIMPLE );
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m_pcbModel->AddCopperPolygonShapes( &copper_shape, layer == F_Cu, aOrigin, false );
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}
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}
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}
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}
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bool EXPORTER_STEP::buildGraphic3DShape( BOARD_ITEM* aItem, VECTOR2D aOrigin )
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{
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PCB_SHAPE* graphic = dynamic_cast<PCB_SHAPE*>( aItem );
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if( ! graphic )
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return false;
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PCB_LAYER_ID pcblayer = graphic->GetLayer();
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if( pcblayer != F_Cu && pcblayer != B_Cu )
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return false;
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SHAPE_POLY_SET copper_shapes;
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int maxError = m_board->GetDesignSettings().m_MaxError;
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if( pcblayer == F_Cu )
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graphic->TransformShapeToPolygon( m_top_copper_shapes, pcblayer, 0,
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maxError, ERROR_INSIDE );
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else
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graphic->TransformShapeToPolygon( m_bottom_copper_shapes, pcblayer, 0,
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maxError, ERROR_INSIDE );
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return true;
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}
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bool EXPORTER_STEP::buildBoard3DShapes()
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{
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if( m_pcbModel )
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return true;
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SHAPE_POLY_SET pcbOutlines; // stores the board main outlines
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if( !m_board->GetBoardPolygonOutlines( pcbOutlines,
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/* error handler */ nullptr,
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/* allows use arcs in outlines */ true ) )
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{
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wxLogWarning( _( "Board outline is malformed. Run DRC for a full analysis." ) );
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}
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VECTOR2D origin;
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// Determine the coordinate system reference:
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// Precedence of reference point is Drill Origin > Grid Origin > User Offset
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if( m_params.m_useDrillOrigin )
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origin = m_board->GetDesignSettings().GetAuxOrigin();
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else if( m_params.m_useGridOrigin )
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origin = m_board->GetDesignSettings().GetGridOrigin();
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else
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origin = m_params.m_origin;
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m_pcbModel = std::make_unique<STEP_PCB_MODEL>( m_pcbBaseName );
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// TODO: Handle when top & bottom soldermask colours are different...
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m_pcbModel->SetBoardColor( m_solderMaskColor.r, m_solderMaskColor.g, m_solderMaskColor.b );
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m_pcbModel->SetCopperColor( m_copperColor.r, m_copperColor.g, m_copperColor.b );
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m_pcbModel->SetPCBThickness( m_boardThickness );
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// Note: m_params.m_BoardOutlinesChainingEpsilon is used only to build the board outlines,
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// not to set OCC chaining epsilon (much smaller)
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//
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// Set the min distance between 2 points for OCC to see these 2 points as merged
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// OCC_MAX_DISTANCE_TO_MERGE_POINTS is acceptable for OCC, otherwise there are issues
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// to handle the shapes chaining on copper layers, because the Z dist is 0.035 mm and the
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// min dist must be much smaller (we use 0.001 mm giving good results)
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m_pcbModel->OCCSetMergeMaxDistance( OCC_MAX_DISTANCE_TO_MERGE_POINTS );
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m_pcbModel->SetMaxError( m_board->GetDesignSettings().m_MaxError );
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// For copper layers, only pads and tracks are added, because adding everything on copper
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// generate unreasonable file sizes and take a unreasonable calculation time.
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for( FOOTPRINT* fp : m_board->Footprints() )
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buildFootprint3DShapes( fp, origin );
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if( ExportTracksAndVias() )
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{
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for( PCB_TRACK* track : m_board->Tracks() )
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buildTrack3DShape( track, origin );
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for( BOARD_ITEM* item : m_board->Drawings() )
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buildGraphic3DShape( item, origin );
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}
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m_pcbModel->AddCopperPolygonShapes( &m_top_copper_shapes, true, origin, true );
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m_pcbModel->AddCopperPolygonShapes( &m_bottom_copper_shapes, false, origin, true );
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if( m_params.m_exportZones )
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{
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buildZones3DShape( origin );
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}
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ReportMessage( wxT( "Create PCB solid model\n" ) );
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wxString msg;
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msg.Printf( wxT( "Board outline: find %d initial points\n" ), pcbOutlines.FullPointCount() );
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ReportMessage( msg );
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if( !m_pcbModel->CreatePCB( pcbOutlines, origin ) )
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{
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ReportMessage( wxT( "could not create PCB solid model\n" ) );
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return false;
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}
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return true;
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}
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void EXPORTER_STEP::calculatePcbThickness()
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{
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m_boardThickness = DEFAULT_BOARD_THICKNESS_MM;
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const BOARD_DESIGN_SETTINGS& bds = m_board->GetDesignSettings();
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if( bds.GetStackupDescriptor().GetCount() )
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{
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int thickness = 0;
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for( BOARD_STACKUP_ITEM* item : bds.GetStackupDescriptor().GetList() )
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{
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switch( item->GetType() )
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{
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case BS_ITEM_TYPE_DIELECTRIC:
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// Dielectric can have sub-layers. Layer 0 is the main layer
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// Not frequent, but possible
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for( int idx = 0; idx < item->GetSublayersCount(); idx++ )
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thickness += item->GetThickness( idx );
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break;
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case BS_ITEM_TYPE_COPPER:
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if( item->IsEnabled() )
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thickness += item->GetThickness();
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break;
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default:
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break;
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}
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}
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if( thickness > 0 )
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m_boardThickness = pcbIUScale.IUTomm( thickness );
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}
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}
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bool EXPORTER_STEP::Export()
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{
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// Display the export time, for statistics
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unsigned stats_startExportTime = GetRunningMicroSecs();
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// setup opencascade message log
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Message::DefaultMessenger()->RemovePrinters( STANDARD_TYPE( Message_PrinterOStream ) );
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Message::DefaultMessenger()->AddPrinter( new KiCadPrinter( this ) );
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ReportMessage( _( "Determining PCB data\n" ) );
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calculatePcbThickness();
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wxString msg;
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msg.Printf( _( "Board Thickness from stackup: %.3f mm\n" ), m_boardThickness );
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ReportMessage( msg );
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if( m_params.m_outputFile.IsEmpty() )
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{
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wxFileName fn = m_board->GetFileName();
|
|
fn.SetName( fn.GetName() );
|
|
fn.SetExt( m_params.GetDefaultExportExtension() );
|
|
|
|
m_params.m_outputFile = fn.GetFullName();
|
|
}
|
|
|
|
try
|
|
{
|
|
ReportMessage( wxString::Format( _( "Build %s data\n" ), m_params.GetFormatName() ) );
|
|
|
|
if( !buildBoard3DShapes() )
|
|
{
|
|
ReportMessage( _( "\n** Error building STEP board model. Export aborted. **\n" ) );
|
|
return false;
|
|
}
|
|
|
|
ReportMessage( wxString::Format( _( "Writing %s file\n" ), m_params.GetFormatName() ) );
|
|
|
|
bool success = true;
|
|
if( m_params.m_format == EXPORTER_STEP_PARAMS::FORMAT::STEP )
|
|
success = m_pcbModel->WriteSTEP( m_outputFile );
|
|
else if( m_params.m_format == EXPORTER_STEP_PARAMS::FORMAT::GLB )
|
|
success = m_pcbModel->WriteGLTF( m_outputFile );
|
|
|
|
if( !success )
|
|
{
|
|
ReportMessage( wxString::Format( _( "\n** Error writing %s file. **\n" ),
|
|
m_params.GetFormatName() ) );
|
|
return false;
|
|
}
|
|
else
|
|
{
|
|
ReportMessage( wxString::Format( _( "%s file '%s' created.\n" ),
|
|
m_params.GetFormatName(), m_outputFile ) );
|
|
}
|
|
}
|
|
catch( const Standard_Failure& e )
|
|
{
|
|
ReportMessage( e.GetMessageString() );
|
|
ReportMessage( wxString::Format( _( "\n** Error exporting %s file. Export aborted. **\n" ),
|
|
m_params.GetFormatName() ) );
|
|
return false;
|
|
}
|
|
catch( ... )
|
|
{
|
|
ReportMessage( wxString::Format( _( "\n** Error exporting %s file. Export aborted. **\n" ),
|
|
m_params.GetFormatName() ) );
|
|
return false;
|
|
}
|
|
|
|
if( m_fail || m_error )
|
|
{
|
|
if( m_fail )
|
|
{
|
|
msg = wxString::Format( _( "Unable to create %s file.\n"
|
|
"Check that the board has a valid outline and models." ),
|
|
m_params.GetFormatName() );
|
|
}
|
|
else if( m_error || m_warn )
|
|
{
|
|
msg = wxString::Format( _( "%s file has been created, but there are warnings." ),
|
|
m_params.GetFormatName() );
|
|
}
|
|
|
|
ReportMessage( msg );
|
|
}
|
|
|
|
// Display calculation time in seconds
|
|
double calculation_time = (double)( GetRunningMicroSecs() - stats_startExportTime) / 1e6;
|
|
ReportMessage( wxString::Format( _( "\nExport time %.3f s\n" ), calculation_time ) );
|
|
|
|
return true;
|
|
}
|