• Dick Hollenbeck's avatar
    1) Add 32 Cu Layers. · 4578ea8b
    Dick Hollenbeck authored
    2) Change from legacy Cu stack to counting down from top=(F_Cu or 0).
       The old Cu stack required knowing the count of Cu layers to make
       sense of the layer number when converting to many exported file types.
       The new Cu stack is more commonly used, although ours still gives
       B_Cu a fixed number.
    3) Introduce class LSET and enum LAYER_ID.
    4) Change *.kicad_pcb file format version to 4 from 3.
    5) Change fixed names Inner1_Cu-Inner14_Cu to In1_Cu-In30_Cu and their
       meanings are typically flipped.
    6) Moved the #define LAYER_N_* stuff into legacy_plugin.cpp where they
       can die a quiet death, and switch to enum LAYER_ID symbols throughout.
    7) Removed the LEGACY_PLUGIN::Save() and FootprintSave() functions.
       You will need to convert to the format immediately, *.kicad_pcb and
       *.kicad_mod (=pretty) since legacy format was never going to know
       about 32 Cu layers and additional technical layers and the reversed Cu
       stack.
    4578ea8b
export_idf.cpp 18.2 KB
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/**
 * @file export_idf.cpp
 */

/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2013  Cirilo Bernardo
 *
 * 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 <list>
#include <wxPcbStruct.h>
#include <macros.h>
#include <pcbnew.h>
#include <class_board.h>
#include <class_module.h>
#include <class_edge_mod.h>
#include <idf_parser.h>
#include <3d_struct.h>
#include <build_version.h>

// assumed default graphical line thickness: 10000 IU == 0.1mm
#define LINE_WIDTH (100000)

/**
 * Function idf_export_outline
 * retrieves line segment information from the edge layer and compiles
 * the data into a form which can be output as an IDFv3 compliant
 * BOARD_OUTLINE section.
 */
static void idf_export_outline( BOARD* aPcb, IDF3_BOARD& aIDFBoard )
{
    double scale = aIDFBoard.GetUserScale();

    DRAWSEGMENT* graphic;               // KiCad graphical item
    IDF_POINT sp, ep;                   // start and end points from KiCad item

    std::list< IDF_SEGMENT* > lines;    // IDF intermediate form of KiCad graphical item
    IDF_OUTLINE* outline = NULL;        // graphical items forming an outline or cutout

    // NOTE: IMPLEMENTATION
    // If/when component cutouts are allowed, we must implement them separately. Cutouts
    // must be added to the board outline section and not to the Other Outline section.
    // The module cutouts should be handled via the idf_export_module() routine.

    double offX, offY;
    aIDFBoard.GetUserOffset( offX, offY );

    // Retrieve segments and arcs from the board
    for( BOARD_ITEM* item = aPcb->m_Drawings; item; item = item->Next() )
    {
        if( item->Type() != PCB_LINE_T || item->GetLayer() != Edge_Cuts )
            continue;

        graphic = (DRAWSEGMENT*) item;

        switch( graphic->GetShape() )
        {
        case S_SEGMENT:
            {
                sp.x    = graphic->GetStart().x * scale + offX;
                sp.y    = -graphic->GetStart().y * scale + offY;
                ep.x    = graphic->GetEnd().x * scale + offX;
                ep.y    = -graphic->GetEnd().y * scale + offY;
                IDF_SEGMENT* seg = new IDF_SEGMENT( sp, ep );

                if( seg )
                    lines.push_back( seg );
            }
            break;

        case S_ARC:
            {
                sp.x = graphic->GetCenter().x * scale + offX;
                sp.y = -graphic->GetCenter().y * scale + offY;
                ep.x = graphic->GetArcStart().x * scale + offX;
                ep.y = -graphic->GetArcStart().y * scale + offY;
                IDF_SEGMENT* seg = new IDF_SEGMENT( sp, ep, -graphic->GetAngle() / 10.0, true );

                if( seg )
                    lines.push_back( seg );
            }
            break;

        case S_CIRCLE:
            {
                sp.x = graphic->GetCenter().x * scale + offX;
                sp.y = -graphic->GetCenter().y * scale + offY;
                ep.x = sp.x - graphic->GetRadius() * scale;
                ep.y = sp.y;
                // Circles must always have an angle of +360 deg. to appease
                // quirky MCAD implementations of IDF.
                IDF_SEGMENT* seg = new IDF_SEGMENT( sp, ep, 360.0, true );

                if( seg )
                    lines.push_back( seg );
            }
            break;

        default:
            break;
        }
    }

    // if there is no outline then use the bounding box
    if( lines.empty() )
    {
        goto UseBoundingBox;
    }

    // get the board outline and write it out
    // note: we do not use a try/catch block here since we intend
    // to simply ignore unclosed loops and continue processing
    // until we're out of segments to process
    outline = new IDF_OUTLINE;
    IDF3::GetOutline( lines, *outline );

    if( outline->empty() )
        goto UseBoundingBox;

    aIDFBoard.AddBoardOutline( outline );
    outline = NULL;

    // get all cutouts and write them out
    while( !lines.empty() )
    {
        if( !outline )
            outline = new IDF_OUTLINE;

        IDF3::GetOutline( lines, *outline );

        if( outline->empty() )
        {
            outline->Clear();
            continue;
        }

        aIDFBoard.AddBoardOutline( outline );
        outline = NULL;
    }

    return;

UseBoundingBox:

    // clean up if necessary
    while( !lines.empty() )
    {
        delete lines.front();
        lines.pop_front();
    }

    if( outline )
        outline->Clear();
    else
        outline = new IDF_OUTLINE;

    // fetch a rectangular bounding box for the board;
    // there is always some uncertainty in the board dimensions
    // computed via ComputeBoundingBox() since this depends on the
    // individual module entities.
    EDA_RECT bbbox = aPcb->ComputeBoundingBox( true );

    // convert to mm and compensate for an assumed LINE_WIDTH line thickness
    double  x   = ( bbbox.GetOrigin().x + LINE_WIDTH / 2 ) * scale + offX;
    double  y   = ( bbbox.GetOrigin().y + LINE_WIDTH / 2 ) * scale + offY;
    double  dx  = ( bbbox.GetSize().x - LINE_WIDTH ) * scale;
    double  dy  = ( bbbox.GetSize().y - LINE_WIDTH ) * scale;

    double px[4], py[4];
    px[0]   = x;
    py[0]   = y;

    px[1]   = x;
    py[1]   = y + dy;

    px[2]   = x + dx;
    py[2]   = y + dy;

    px[3]   = x + dx;
    py[3]   = y;

    IDF_POINT p1, p2;

    p1.x    = px[3];
    p1.y    = py[3];
    p2.x    = px[0];
    p2.y    = py[0];

    outline->push( new IDF_SEGMENT( p1, p2 ) );

    for( int i = 1; i < 4; ++i )
    {
        p1.x    = px[i - 1];
        p1.y    = py[i - 1];
        p2.x    = px[i];
        p2.y    = py[i];

        outline->push( new IDF_SEGMENT( p1, p2 ) );
    }

    aIDFBoard.AddBoardOutline( outline );
}


/**
 * Function idf_export_module
 * retrieves information from all board modules, adds drill holes to
 * the DRILLED_HOLES or BOARD_OUTLINE section as appropriate,
 * compiles data for the PLACEMENT section and compiles data for
 * the library ELECTRICAL section.
 */
static void idf_export_module( BOARD* aPcb, MODULE* aModule,
        IDF3_BOARD& aIDFBoard )
{
    // Reference Designator
    std::string crefdes = TO_UTF8( aModule->GetReference() );

    if( crefdes.empty() || !crefdes.compare( "~" ) )
    {
        std::string cvalue = TO_UTF8( aModule->GetValue() );

        // if both the RefDes and Value are empty or set to '~' the board owns the part,
        // otherwise associated parts of the module must be marked NOREFDES.
        if( cvalue.empty() || !cvalue.compare( "~" ) )
            crefdes = "BOARD";
        else
            crefdes = "NOREFDES";
    }

    // TODO: If module cutouts are supported we must add code here
    // for( EDA_ITEM* item = aModule->GraphicalItems();  item != NULL;  item = item->Next() )
    // {
    // if( ( item->Type() != PCB_MODULE_EDGE_T )
    // || (item->GetLayer() != Edge_Cuts ) ) continue;
    // code to export cutouts
    // }

    // Export pads
    double  drill, x, y;
    double  scale = aIDFBoard.GetUserScale();
    IDF3::KEY_PLATING kplate;
    std::string pintype;
    std::string tstr;

    double dx, dy;

    aIDFBoard.GetUserOffset( dx, dy );

    for( D_PAD* pad = aModule->Pads(); pad; pad = pad->Next() )
    {
        drill = (double) pad->GetDrillSize().x * scale;
        x     = pad->GetPosition().x * scale + dx;
        y     = -pad->GetPosition().y * scale + dy;

        // Export the hole on the edge layer
        if( drill > 0.0 )
        {
            // plating
            if( pad->GetAttribute() == PAD_HOLE_NOT_PLATED )
                kplate = IDF3::NPTH;
            else
                kplate = IDF3::PTH;

            // hole type
            tstr = TO_UTF8( pad->GetPadName() );

            if( tstr.empty() || !tstr.compare( "0" ) || !tstr.compare( "~" )
                || ( kplate == IDF3::NPTH )
                ||( pad->GetDrillShape() == PAD_DRILL_OBLONG ) )
                pintype = "MTG";
            else
                pintype = "PIN";

            // fields:
            // 1. hole dia. : float
            // 2. X coord : float
            // 3. Y coord : float
            // 4. plating : PTH | NPTH
            // 5. Assoc. part : BOARD | NOREFDES | PANEL | {"refdes"}
            // 6. type : PIN | VIA | MTG | TOOL | { "other" }
            // 7. owner : MCAD | ECAD | UNOWNED
            if( ( pad->GetDrillShape() == PAD_DRILL_OBLONG )
                && ( pad->GetDrillSize().x != pad->GetDrillSize().y ) )
            {
                // NOTE: IDF does not have direct support for slots;
                // slots are implemented as a board cutout and we
                // cannot represent plating or reference designators

                double dlength = pad->GetDrillSize().y * scale;

                // NOTE: The orientation of modules and pads have
                // the opposite sense due to KiCad drawing on a
                // screen with a LH coordinate system
                double angle = pad->GetOrientation() / 10.0;

                if( dlength < drill )
                {
                    std::swap( drill, dlength );
                    angle += M_PI2;
                }

                // NOTE: KiCad measures a slot's length from end to end
                // rather than between the centers of the arcs
                dlength -= drill;

                aIDFBoard.AddSlot( drill, dlength, angle, x, y );
            }
            else
            {
                IDF_DRILL_DATA *dp = new IDF_DRILL_DATA( drill, x, y, kplate, crefdes,
                                                         pintype, IDF3::ECAD );

                if( !aIDFBoard.AddDrill( dp ) )
                {
                    delete dp;

                    std::ostringstream ostr;
                    ostr << __FILE__ << ":" << __LINE__ << ":" << __FUNCTION__;
                    ostr << "(): could not add drill";

                    throw std::runtime_error( ostr.str() );
                }
            }
        }
    }

    // add any valid models to the library item list
    std::string refdes;

    IDF3_COMPONENT* comp = NULL;

    for( S3D_MASTER* modfile = aModule->Models(); modfile != 0; modfile = modfile->Next() )
    {
        if( !modfile->Is3DType( S3D_MASTER::FILE3D_IDF ) )
            continue;

        if( refdes.empty() )
        {
            refdes = TO_UTF8( aModule->GetReference() );

            // NOREFDES cannot be used or else the software gets confused
            // when writing out the placement data due to conflicting
            // placement and layer specifications; to work around this we
            // create a (hopefully) unique refdes for our exported part.
            if( refdes.empty() || !refdes.compare( "~" ) )
                refdes = aIDFBoard.GetNewRefDes();
        }

        IDF3_COMP_OUTLINE* outline;

        outline = aIDFBoard.GetComponentOutline( modfile->GetShape3DName() );

        if( !outline )
            throw( std::runtime_error( aIDFBoard.GetError() ) );

        double rotz = aModule->GetOrientation()/10.0;
        double locx = modfile->m_MatPosition.x;
        double locy = modfile->m_MatPosition.y;
        double locz = modfile->m_MatPosition.z;
        double lrot = modfile->m_MatRotation.z;

        bool top = ( aModule->GetLayer() == B_Cu ) ? false : true;

        if( top )
        {
            rotz += modfile->m_MatRotation.z;
            locy = -locy;
            RotatePoint( &locx, &locy, aModule->GetOrientation() );
            locy = -locy;
        }

        if( !top )
        {
            RotatePoint( &locx, &locy, aModule->GetOrientation() );
            locy = -locy;

            rotz = 180.0 - rotz;

            if( rotz >= 360.0 )
                while( rotz >= 360.0 ) rotz -= 360.0;

            if( rotz <= -360.0 )
                while( rotz <= -360.0 ) rotz += 360.0;
        }

        if( comp == NULL )
            comp = aIDFBoard.FindComponent( refdes );

        if( comp == NULL )
        {
            comp = new IDF3_COMPONENT( &aIDFBoard );

            if( comp == NULL )
                throw( std::runtime_error( aIDFBoard.GetError() ) );

            comp->SetRefDes( refdes );

            if( top )
                comp->SetPosition( aModule->GetPosition().x * scale + dx,
                                   -aModule->GetPosition().y * scale + dy,
                                   rotz, IDF3::LYR_TOP );
            else
                comp->SetPosition( aModule->GetPosition().x * scale + dx,
                                   -aModule->GetPosition().y * scale + dy,
                                   rotz, IDF3::LYR_BOTTOM );

            comp->SetPlacement( IDF3::PS_ECAD );

            aIDFBoard.AddComponent( comp );
        }
        else
        {
            double refX, refY, refA;
            IDF3::IDF_LAYER side;

            if( ! comp->GetPosition( refX, refY, refA, side ) )
            {
                // place the item
                if( top )
                    comp->SetPosition( aModule->GetPosition().x * scale + dx,
                                       -aModule->GetPosition().y * scale + dy,
                                       rotz, IDF3::LYR_TOP );
                    else
                        comp->SetPosition( aModule->GetPosition().x * scale + dx,
                                           -aModule->GetPosition().y * scale + dy,
                                           rotz, IDF3::LYR_BOTTOM );
            }
            else
            {
                // check that the retrieved component matches this one
                refX = refX - ( aModule->GetPosition().x * scale + dx );
                refY = refY - ( -aModule->GetPosition().y * scale + dy );
                refA = refA - rotz;
                refA *= refA;
                refX *= refX;
                refY *= refY;
                refX += refY;

                // conditions: same side, X,Y coordinates within 10 microns,
                // angle within 0.01 degree
                if( ( top && side == IDF3::LYR_BOTTOM ) || ( !top && side == IDF3::LYR_TOP )
                    || ( refA > 0.0001 ) || ( refX > 0.0001 ) )
                {
                    comp->GetPosition( refX, refY, refA, side );

                    std::ostringstream ostr;
                    ostr << "* " << __FILE__ << ":" << __LINE__ << ":" << __FUNCTION__ << "():\n";
                    ostr << "* conflicting Reference Designator '" << refdes << "'\n";
                    ostr << "* X loc: " << (aModule->GetPosition().x * scale + dx);
                    ostr << " vs. " << refX << "\n";
                    ostr << "* Y loc: " << (-aModule->GetPosition().y * scale + dy);
                    ostr << " vs. " << refY << "\n";
                    ostr << "* angle: " << rotz;
                    ostr << " vs. " << refA << "\n";

                    if( top )
                        ostr << "* TOP vs. ";
                    else
                        ostr << "* BOTTOM vs. ";

                    if( side == IDF3::LYR_TOP )
                        ostr << "TOP";
                    else
                        ostr << "BOTTOM";

                    throw( std::runtime_error( ostr.str() ) );
                }
            }
        }


        // create the local data ...
        IDF3_COMP_OUTLINE_DATA* data = new IDF3_COMP_OUTLINE_DATA( comp, outline );

        data->SetOffsets( locx, locy, locz, lrot );
        comp->AddOutlineData( data );
    }

    return;
}


/**
 * Function Export_IDF3
 * generates IDFv3 compliant board (*.emn) and library (*.emp)
 * files representing the user's PCB design.
 */
bool Export_IDF3( BOARD* aPcb, const wxString& aFullFileName, bool aUseThou )
{
    IDF3_BOARD idfBoard( IDF3::CAD_ELEC );

    SetLocaleTo_C_standard();

    bool ok = true;
    double scale = 1e-6;    // we must scale internal units to mm for IDF
    IDF3::IDF_UNIT idfUnit;

    if( aUseThou )
    {
        idfUnit = IDF3::UNIT_THOU;
        idfBoard.SetUserPrecision( 1 );
    }
    else
    {
        idfUnit = IDF3::UNIT_MM;
        idfBoard.SetUserPrecision( 5 );
    }

    wxFileName brdName = aPcb->GetFileName();

    idfBoard.SetUserScale( scale );
    idfBoard.SetBoardThickness( aPcb->GetDesignSettings().GetBoardThickness() * scale );
    idfBoard.SetBoardName( TO_UTF8( brdName.GetFullName() ) );
    idfBoard.SetBoardVersion( 0 );
    idfBoard.SetLibraryVersion( 0 );

    std::ostringstream ostr;
    ostr << "Created by KiCad " << TO_UTF8( GetBuildVersion() );
    idfBoard.SetIDFSource( ostr.str() );

    try
    {
        // set up the global offsets
        EDA_RECT bbox = aPcb->ComputeBoundingBox( true );
        idfBoard.SetUserOffset( -bbox.Centre().x * scale,
                            bbox.Centre().y * scale );

        // Export the board outline
        idf_export_outline( aPcb, idfBoard );

        // Output the drill holes and module (library) data.
        for( MODULE* module = aPcb->m_Modules; module != 0; module = module->Next() )
            idf_export_module( aPcb, module, idfBoard );

        if( !idfBoard.WriteFile( aFullFileName, idfUnit, false ) )
        {
            wxString msg;
            msg << _( "IDF Export Failed:\n" ) << FROM_UTF8( idfBoard.GetError().c_str() );
            wxMessageBox( msg );

            ok = false;
        }
    }
    catch( const IO_ERROR& ioe )
    {
        wxString msg;
        msg << _( "IDF Export Failed:\n" ) << ioe.errorText;
        wxMessageBox( msg );

        ok = false;
    }
    catch( const std::exception& e )
    {
        wxString msg;
        msg << _( "IDF Export Failed:\n" ) << FROM_UTF8( e.what() );
        wxMessageBox( msg );
        ok = false;
    }

    SetLocaleTo_Default();

    return ok;
}