572 lines
18 KiB
C++
572 lines
18 KiB
C++
/*
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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) 2007-2014 Jean-Pierre Charras jp.charras at wanadoo.fr
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* Copyright (C) 1992-2017 KiCad Developers, see change_log.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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/**
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* @file export_to_pcbnew.cpp
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* @brief Export the layers to Pcbnew.
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*/
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#include <vector>
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#include <fctsys.h>
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#include <common.h>
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#include <confirm.h>
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#include <macros.h>
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#include <trigo.h>
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#include <gerbview.h>
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#include <gerbview_frame.h>
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#include <gerber_file_image.h>
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#include <gerber_file_image_list.h>
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#include <select_layers_to_pcb.h>
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#include <build_version.h>
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#include <wildcards_and_files_ext.h>
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// Imported function
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extern const wxString GetPCBDefaultLayerName( LAYER_NUM aLayerNumber );
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/* A helper class to export a Gerber set of files to Pcbnew
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*/
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class GBR_TO_PCB_EXPORTER
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{
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private:
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GERBVIEW_FRAME* m_gerbview_frame; // the main gerber frame
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wxString m_pcb_file_name; // BOARD file to write to
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FILE* m_fp; // the board file
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int m_pcbCopperLayersCount;
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std::vector<wxPoint> m_vias_coordinates; // list of already generated vias,
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// used to export only once a via
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// having a given coordinate
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public:
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GBR_TO_PCB_EXPORTER( GERBVIEW_FRAME* aFrame, const wxString& aFileName );
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~GBR_TO_PCB_EXPORTER();
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/**
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* Function ExportPcb
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* saves a board from a set of Gerber images.
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*/
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bool ExportPcb( LAYER_NUM* aLayerLookUpTable, int aCopperLayers );
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private:
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/**
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* write a non copper line or arc to the board file.
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* @param aGbrItem = the Gerber item (line, arc) to export
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* @param aLayer = the technical layer to use
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*/
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void export_non_copper_item( GERBER_DRAW_ITEM* aGbrItem, LAYER_NUM aLayer );
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/**
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* write a non copper polygon item to the board file.
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* @param aGbrItem = the Gerber item (line, arc) to export
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* @param aLayer = the technical layer to use
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*/
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void writePcbPolygonItem( GERBER_DRAW_ITEM* aGbrItem, LAYER_NUM aLayer );
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/**
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* write a track or via) to the board file.
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* @param aGbrItem = the Gerber item (line, arc, flashed) to export
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* @param aLayer = the copper layer to use
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*/
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void export_copper_item( GERBER_DRAW_ITEM* aGbrItem, LAYER_NUM aLayer );
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/**
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* Function export_flashed_copper_item
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* write a via to the board file (always uses a via through).
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* @param aGbrItem = the flashed Gerber item to export
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*/
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void export_flashed_copper_item( GERBER_DRAW_ITEM* aGbrItem );
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/**
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* Function export_segline_copper_item
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* write a track (not via) to the board file.
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* @param aGbrItem = the Gerber item (line only) to export
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* @param aLayer = the copper layer to use
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*/
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void export_segline_copper_item( GERBER_DRAW_ITEM* aGbrItem, LAYER_NUM aLayer );
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/**
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* Function export_segarc_copper_item
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* write a set of tracks (arcs are approximated by track segments)
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* to the board file.
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* @param aGbrItem = the Gerber item (arc only) to export
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* @param aLayer = the copper layer to use
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*/
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void export_segarc_copper_item( GERBER_DRAW_ITEM* aGbrItem, LAYER_NUM aLayer );
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/**
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* function writePcbLineItem
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* basic write function to write a DRAWSEGMENT item or a TRACK item
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* to the board file, from a non flashed item
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*/
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void writePcbLineItem( bool aIsArc, wxPoint& aStart, wxPoint& aEnd,
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int aWidth, LAYER_NUM aLayer, double aAngle = 0 );
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/**
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* function writeCopperLineItem
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* basic write function to write a a TRACK item
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* to the board file, from a non flashed item
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*/
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void writeCopperLineItem( wxPoint& aStart, wxPoint& aEnd,
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int aWidth, LAYER_NUM aLayer );
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/**
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* function writePcbHeader
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* Write a very basic header to the board file
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*/
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void writePcbHeader( LAYER_NUM* aLayerLookUpTable );
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/** In Pcbnew files units are mm for coordinates.
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* So MapToPcbUnits converts internal gerbview to mm any pcbnew value
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* @param aValue is a coordinate value to convert in mm
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*/
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double MapToPcbUnits( int aValue )
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{
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return aValue / IU_PER_MM;
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}
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};
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GBR_TO_PCB_EXPORTER::GBR_TO_PCB_EXPORTER( GERBVIEW_FRAME* aFrame, const wxString& aFileName )
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{
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m_gerbview_frame = aFrame;
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m_pcb_file_name = aFileName;
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m_fp = NULL;
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m_pcbCopperLayersCount = 2;
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}
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GBR_TO_PCB_EXPORTER::~GBR_TO_PCB_EXPORTER()
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{
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}
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/* Export data in Pcbnew format
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* remember Pcbnew uses a Y reversed axis, so we must negate all Y coordinates
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*/
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void GERBVIEW_FRAME::ExportDataInPcbnewFormat( wxCommandEvent& event )
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{
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int layercount = 0;
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GERBER_FILE_IMAGE_LIST* images = GetGerberLayout()->GetImagesList();
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// Count the Gerber layers which are actually currently used
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for( LAYER_NUM ii = 0; ii < (LAYER_NUM)images->ImagesMaxCount(); ++ii )
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{
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if( images->GetGbrImage( ii ) )
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layercount++;
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}
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if( layercount == 0 )
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{
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DisplayInfoMessage( this,
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_( "None of the Gerber layers contain any data" ) );
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return;
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}
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wxString fileName;
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wxString path = m_mruPath;
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wxFileDialog filedlg( this, _( "Board File Name" ),
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path, fileName, PcbFileWildcard(),
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wxFD_SAVE | wxFD_OVERWRITE_PROMPT );
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if( filedlg.ShowModal() == wxID_CANCEL )
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return;
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fileName = filedlg.GetPath();
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/* Install a dialog frame to choose the mapping
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* between gerber layers and Pcbnew layers
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*/
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LAYERS_MAP_DIALOG* layerdlg = new LAYERS_MAP_DIALOG( this );
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int ok = layerdlg->ShowModal();
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layerdlg->Destroy();
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if( ok != wxID_OK )
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return;
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m_mruPath = wxFileName( fileName ).GetPath();
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GBR_TO_PCB_EXPORTER gbr_exporter( this, fileName );
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gbr_exporter.ExportPcb( layerdlg->GetLayersLookUpTable(), layerdlg->GetCopperLayersCount() );
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}
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bool GBR_TO_PCB_EXPORTER::ExportPcb( LAYER_NUM* aLayerLookUpTable, int aCopperLayers )
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{
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LOCALE_IO toggle; // toggles on, then off, the C locale.
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m_fp = wxFopen( m_pcb_file_name, wxT( "wt" ) );
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if( m_fp == NULL )
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{
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wxString msg;
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msg.Printf( _( "Cannot create file \"%s\"" ), GetChars( m_pcb_file_name ) );
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DisplayError( m_gerbview_frame, msg );
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return false;
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}
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m_pcbCopperLayersCount = aCopperLayers;
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writePcbHeader( aLayerLookUpTable );
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// create an image of gerber data
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// First: non copper layers:
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const int pcbCopperLayerMax = 31;
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GERBER_FILE_IMAGE_LIST* images = m_gerbview_frame->GetGerberLayout()->GetImagesList();
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for( unsigned layer = 0; layer < images->ImagesMaxCount(); ++layer )
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{
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GERBER_FILE_IMAGE* gerber = images->GetGbrImage( layer );
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if( gerber == NULL ) // Graphic layer not yet used
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continue;
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LAYER_NUM pcb_layer_number = aLayerLookUpTable[layer];
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if( !IsPcbLayer( pcb_layer_number ) )
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continue;
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if( pcb_layer_number <= pcbCopperLayerMax ) // copper layer
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continue;
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GERBER_DRAW_ITEM* gerb_item = gerber->GetItemsList();
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for( ; gerb_item; gerb_item = gerb_item->Next() )
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export_non_copper_item( gerb_item, pcb_layer_number );
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}
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// Copper layers
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for( unsigned layer = 0; layer < images->ImagesMaxCount(); ++layer )
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{
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GERBER_FILE_IMAGE* gerber = images->GetGbrImage( layer );
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if( gerber == NULL ) // Graphic layer not yet used
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continue;
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LAYER_NUM pcb_layer_number = aLayerLookUpTable[layer];
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if( pcb_layer_number < 0 || pcb_layer_number > pcbCopperLayerMax )
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continue;
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GERBER_DRAW_ITEM* gerb_item = gerber->GetItemsList();
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for( ; gerb_item; gerb_item = gerb_item->Next() )
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export_copper_item( gerb_item, pcb_layer_number );
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}
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fprintf( m_fp, ")\n" );
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fclose( m_fp );
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m_fp = NULL;
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return true;
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}
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void GBR_TO_PCB_EXPORTER::export_non_copper_item( GERBER_DRAW_ITEM* aGbrItem, LAYER_NUM aLayer )
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{
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bool isArc = false;
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double angle = 0;
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wxPoint seg_start = aGbrItem->m_Start;
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wxPoint seg_end = aGbrItem->m_End;
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if( aGbrItem->m_Shape == GBR_POLYGON )
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{
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writePcbPolygonItem( aGbrItem, aLayer );
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return;
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}
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if( aGbrItem->m_Shape == GBR_ARC )
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{
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double a = atan2( (double) ( aGbrItem->m_Start.y - aGbrItem->m_ArcCentre.y),
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(double) ( aGbrItem->m_Start.x - aGbrItem->m_ArcCentre.x ) );
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double b = atan2( (double) ( aGbrItem->m_End.y - aGbrItem->m_ArcCentre.y ),
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(double) ( aGbrItem->m_End.x - aGbrItem->m_ArcCentre.x ) );
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isArc = true;
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angle = RAD2DEG(b - a);
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seg_start = aGbrItem->m_ArcCentre;
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// Ensure arc orientation is CCW
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if( angle < 0 )
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angle += 360.0;
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}
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// Reverse Y axis:
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seg_start.y = -seg_start.y;
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seg_end.y = -seg_end.y;
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writePcbLineItem( isArc, seg_start, seg_end, aGbrItem->m_Size.x, aLayer, angle );
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}
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void GBR_TO_PCB_EXPORTER::export_copper_item( GERBER_DRAW_ITEM* aGbrItem, LAYER_NUM aLayer )
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{
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switch( aGbrItem->m_Shape )
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{
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case GBR_SPOT_CIRCLE:
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case GBR_SPOT_RECT:
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case GBR_SPOT_OVAL:
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// replace spots with vias when possible
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export_flashed_copper_item( aGbrItem );
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break;
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case GBR_ARC:
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export_segarc_copper_item( aGbrItem, aLayer );
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break;
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case GBR_POLYGON:
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// Currently: Pcbnew does not really handle polygons on copper layers (no DRC test).
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// However, we can export them if the purpose of this export is to help recreate a board
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writePcbPolygonItem( aGbrItem, aLayer );
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break;
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default:
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export_segline_copper_item( aGbrItem, aLayer );
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break;
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}
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}
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void GBR_TO_PCB_EXPORTER::export_segline_copper_item( GERBER_DRAW_ITEM* aGbrItem, LAYER_NUM aLayer )
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{
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wxPoint seg_start, seg_end;
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seg_start = aGbrItem->m_Start;
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seg_end = aGbrItem->m_End;
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// Reverse Y axis:
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seg_start.y = -seg_start.y;
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seg_end.y = -seg_end.y;
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writeCopperLineItem( seg_start, seg_end, aGbrItem->m_Size.x, aLayer );
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}
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void GBR_TO_PCB_EXPORTER::writeCopperLineItem( wxPoint& aStart, wxPoint& aEnd,
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int aWidth, LAYER_NUM aLayer )
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{
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fprintf( m_fp, "(segment (start %s %s) (end %s %s) (width %s) (layer %s) (net 0))\n",
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Double2Str( MapToPcbUnits(aStart.x) ).c_str(),
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Double2Str( MapToPcbUnits(aStart.y) ).c_str(),
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Double2Str( MapToPcbUnits(aEnd.x) ).c_str(),
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Double2Str( MapToPcbUnits(aEnd.y) ).c_str(),
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Double2Str( MapToPcbUnits( aWidth ) ).c_str(),
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TO_UTF8( GetPCBDefaultLayerName( aLayer ) ) );
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}
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void GBR_TO_PCB_EXPORTER::export_segarc_copper_item( GERBER_DRAW_ITEM* aGbrItem, LAYER_NUM aLayer )
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{
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double a = atan2( (double) ( aGbrItem->m_Start.y - aGbrItem->m_ArcCentre.y ),
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(double) ( aGbrItem->m_Start.x - aGbrItem->m_ArcCentre.x ) );
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double b = atan2( (double) ( aGbrItem->m_End.y - aGbrItem->m_ArcCentre.y ),
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(double) ( aGbrItem->m_End.x - aGbrItem->m_ArcCentre.x ) );
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wxPoint start = aGbrItem->m_Start;
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wxPoint end = aGbrItem->m_End;
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/* Because Pcbnew does not know arcs in tracks,
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* approximate arc by segments (SEG_COUNT__CIRCLE segment per 360 deg)
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* The arc is drawn anticlockwise from the start point to the end point.
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*/
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#define SEG_COUNT_CIRCLE 16
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#define DELTA_ANGLE 2 * M_PI / SEG_COUNT_CIRCLE
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// calculate the number of segments from a to b.
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// we want CNT_PER_360 segments fo a circle
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if( a > b )
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b += 2 * M_PI;
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wxPoint curr_start = start;
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wxPoint seg_start, seg_end;
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int ii = 1;
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for( double rot = a; rot < (b - DELTA_ANGLE); rot += DELTA_ANGLE, ii++ )
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{
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seg_start = curr_start;
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wxPoint curr_end = start;
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RotatePoint( &curr_end, aGbrItem->m_ArcCentre,
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-RAD2DECIDEG( DELTA_ANGLE * ii ) );
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seg_end = curr_end;
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// Reverse Y axis:
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seg_start.y = -seg_start.y;
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seg_end.y = -seg_end.y;
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writeCopperLineItem( seg_start, seg_end, aGbrItem->m_Size.x, aLayer );
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curr_start = curr_end;
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}
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if( end != curr_start )
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{
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seg_start = curr_start;
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seg_end = end;
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// Reverse Y axis:
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seg_start.y = -seg_start.y;
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seg_end.y = -seg_end.y;
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writeCopperLineItem( seg_start, seg_end, aGbrItem->m_Size.x, aLayer );
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}
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}
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/*
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* creates a via from a flashed gerber item.
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* Flashed items are usually pads or vias, so we try to export all of them
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* using vias
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*/
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void GBR_TO_PCB_EXPORTER::export_flashed_copper_item( GERBER_DRAW_ITEM* aGbrItem )
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{
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// First, explore already created vias, before creating a new via
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for( unsigned ii = 0; ii < m_vias_coordinates.size(); ii++ )
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{
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if( m_vias_coordinates[ii] == aGbrItem->m_Start ) // Already created
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return;
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}
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m_vias_coordinates.push_back( aGbrItem->m_Start );
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wxPoint via_pos = aGbrItem->m_Start;
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int width = (aGbrItem->m_Size.x + aGbrItem->m_Size.y) / 2;
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// Reverse Y axis:
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via_pos.y = -via_pos.y;
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// Layers are Front to Back
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fprintf( m_fp, " (via (at %s %s) (size %s)",
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Double2Str( MapToPcbUnits(via_pos.x) ).c_str(),
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Double2Str( MapToPcbUnits(via_pos.y) ).c_str(),
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Double2Str( MapToPcbUnits( width ) ).c_str() );
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fprintf( m_fp, " (layers %s %s))\n",
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TO_UTF8( GetPCBDefaultLayerName( F_Cu ) ),
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TO_UTF8( GetPCBDefaultLayerName( B_Cu ) ) );
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}
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void GBR_TO_PCB_EXPORTER::writePcbHeader( LAYER_NUM* aLayerLookUpTable )
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{
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fprintf( m_fp, "(kicad_pcb (version 4) (host Gerbview \"%s\")\n\n",
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TO_UTF8( GetBuildVersion() ) );
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// Write layers section
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fprintf( m_fp, " (layers \n" );
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for( int ii = 0; ii < m_pcbCopperLayersCount; ii++ )
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{
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int id = ii;
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if( ii == m_pcbCopperLayersCount-1)
|
|
id = B_Cu;
|
|
|
|
fprintf( m_fp, " (%d %s signal)\n", id, TO_UTF8( GetPCBDefaultLayerName( id ) ) );
|
|
}
|
|
|
|
for( int ii = B_Adhes; ii < PCB_LAYER_ID_COUNT; ii++ )
|
|
{
|
|
if( GetPCBDefaultLayerName( ii ).IsEmpty() ) // Layer not available for export
|
|
continue;
|
|
|
|
fprintf( m_fp, " (%d %s user)\n", ii, TO_UTF8( GetPCBDefaultLayerName( ii ) ) );
|
|
}
|
|
|
|
fprintf( m_fp, " )\n\n" );
|
|
}
|
|
|
|
|
|
void GBR_TO_PCB_EXPORTER::writePcbLineItem( bool aIsArc, wxPoint& aStart, wxPoint& aEnd,
|
|
int aWidth, LAYER_NUM aLayer, double aAngle )
|
|
{
|
|
if( aIsArc && ( aAngle == 360.0 || aAngle == 0 ) )
|
|
{
|
|
fprintf( m_fp, "(gr_circle (center %s %s) (end %s %s)(layer %s) (width %s))\n",
|
|
Double2Str( MapToPcbUnits(aStart.x) ).c_str(),
|
|
Double2Str( MapToPcbUnits(aStart.y) ).c_str(),
|
|
Double2Str( MapToPcbUnits(aEnd.x) ).c_str(),
|
|
Double2Str( MapToPcbUnits(aEnd.y) ).c_str(),
|
|
TO_UTF8( GetPCBDefaultLayerName( aLayer ) ),
|
|
Double2Str( MapToPcbUnits( aWidth ) ).c_str()
|
|
);
|
|
}
|
|
else if( aIsArc )
|
|
{
|
|
fprintf( m_fp, "(gr_arc (start %s %s) (end %s %s) (angle %s)(layer %s) (width %s))\n",
|
|
Double2Str( MapToPcbUnits(aStart.x) ).c_str(),
|
|
Double2Str( MapToPcbUnits(aStart.y) ).c_str(),
|
|
Double2Str( MapToPcbUnits(aEnd.x) ).c_str(),
|
|
Double2Str( MapToPcbUnits(aEnd.y) ).c_str(),
|
|
Double2Str( aAngle ).c_str(),
|
|
TO_UTF8( GetPCBDefaultLayerName( aLayer ) ),
|
|
Double2Str( MapToPcbUnits( aWidth ) ).c_str()
|
|
);
|
|
}
|
|
else
|
|
{
|
|
fprintf( m_fp, "(gr_line (start %s %s) (end %s %s)(layer %s) (width %s))\n",
|
|
Double2Str( MapToPcbUnits(aStart.x) ).c_str(),
|
|
Double2Str( MapToPcbUnits(aStart.y) ).c_str(),
|
|
Double2Str( MapToPcbUnits(aEnd.x) ).c_str(),
|
|
Double2Str( MapToPcbUnits(aEnd.y) ).c_str(),
|
|
TO_UTF8( GetPCBDefaultLayerName( aLayer ) ),
|
|
Double2Str( MapToPcbUnits( aWidth ) ).c_str()
|
|
);
|
|
}
|
|
}
|
|
|
|
|
|
void GBR_TO_PCB_EXPORTER::writePcbPolygonItem( GERBER_DRAW_ITEM* aGbrItem, LAYER_NUM aLayer )
|
|
{
|
|
fprintf( m_fp, "(gr_poly (pts " );
|
|
|
|
SHAPE_POLY_SET polys = aGbrItem->m_Polygon;
|
|
SHAPE_LINE_CHAIN& poly = polys.Outline( 0 );
|
|
|
|
#define MAX_COORD_CNT 4
|
|
int jj = MAX_COORD_CNT;
|
|
int cnt_max = poly.PointCount() -1;
|
|
|
|
// Do not generate last corner, if it is the same point as the first point:
|
|
if( poly.CPoint( 0 ) == poly.CPoint( cnt_max ) )
|
|
cnt_max--;
|
|
|
|
for( int ii = 0; ii <= cnt_max; ii++ )
|
|
{
|
|
if( --jj == 0 )
|
|
{
|
|
jj = MAX_COORD_CNT;
|
|
fprintf( m_fp, "\n" );
|
|
}
|
|
|
|
fprintf( m_fp, " (xy %s %s)", Double2Str( MapToPcbUnits( poly.CPoint( ii ).x ) ).c_str(),
|
|
Double2Str( MapToPcbUnits( -poly.CPoint( ii ).y ) ).c_str() );
|
|
}
|
|
|
|
fprintf( m_fp, ")" );
|
|
|
|
if( jj != MAX_COORD_CNT )
|
|
fprintf( m_fp, "\n" );
|
|
|
|
fprintf( m_fp, "(layer %s) (width 0) )\n",
|
|
TO_UTF8( GetPCBDefaultLayerName( aLayer ) ) );
|
|
}
|