STEP export: use unfractured polygons.
Fixes https://gitlab.com/kicad/code/kicad/-/issues/15486
This commit is contained in:
Alex Shvartzkop
parent
e118d2fca0
commit
458d5fbeb8
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@ -333,7 +333,7 @@ void EXPORTER_STEP::buildZones3DShape( VECTOR2D aOrigin )
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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.Fracture( SHAPE_POLY_SET::PM_FAST );
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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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@ -427,9 +427,6 @@ bool EXPORTER_STEP::buildBoard3DShapes()
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buildGraphic3DShape( item, origin );
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}
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m_top_copper_shapes.Fracture( SHAPE_POLY_SET::PM_FAST );
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m_bottom_copper_shapes.Fracture( SHAPE_POLY_SET::PM_FAST );
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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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@ -234,10 +234,8 @@ bool STEP_PCB_MODEL::AddPadShape( const PAD* aPad, const VECTOR2D& aOrigin )
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}
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else
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{
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success = MakeShape( curr_shape, pad_shape.get()->COutline(0), m_copperThickness, Zpos, aOrigin );
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if( success )
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m_board_copper_pads.push_back( curr_shape );
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success = MakeShapes( m_board_copper_pads, *pad_shape, m_copperThickness, Zpos,
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aOrigin );
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}
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}
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@ -257,25 +255,16 @@ bool STEP_PCB_MODEL::AddCopperPolygonShapes( const SHAPE_POLY_SET* aPolyShapes,
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{
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bool success = true;
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for( int ii = 0; ii < aPolyShapes->OutlineCount(); ii++ )
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{
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TopoDS_Shape copper_shape;
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double z_pos = aOnTop ? m_boardThickness : -m_copperThickness;
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double z_pos = aOnTop ? m_boardThickness : -m_copperThickness;
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if( MakeShape( copper_shape, aPolyShapes->COutline( ii ), m_copperThickness, z_pos, aOrigin ) )
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{
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if( aTrack )
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m_board_copper_tracks.push_back( copper_shape );
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else
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m_board_copper_zones.push_back( copper_shape );
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}
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else
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{
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ReportMessage( wxString::Format( wxT( "Could not add shape (%d points) to copper layer on %s.\n" ),
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aPolyShapes->COutline( ii ).PointCount(),
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aOnTop ? wxT( "top" ) : wxT( "bottom" ) ) );
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success = false;
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}
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if( !MakeShapes( aTrack ? m_board_copper_tracks : m_board_copper_zones, *aPolyShapes,
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m_copperThickness, z_pos, aOrigin ) )
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{
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ReportMessage( wxString::Format(
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wxT( "Could not add shape (%d points) to copper layer on %s.\n" ),
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aPolyShapes->FullPointCount(), aOnTop ? wxT( "top" ) : wxT( "bottom" ) ) );
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success = false;
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}
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return success;
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@ -606,95 +595,136 @@ bool STEP_PCB_MODEL::MakeShapeAsThickSegment( TopoDS_Shape& aShape,
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}
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bool STEP_PCB_MODEL::MakeShape( TopoDS_Shape& aShape, const SHAPE_LINE_CHAIN& aChain,
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double aThickness, double aZposition, const VECTOR2D& aOrigin )
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bool STEP_PCB_MODEL::MakeShapes( std::vector<TopoDS_Shape>& aShapes, const SHAPE_POLY_SET& aPolySet,
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double aThickness, double aZposition, const VECTOR2D& aOrigin )
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{
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if( !aShape.IsNull() )
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return false; // there is already data in the shape object
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SHAPE_POLY_SET simplified = aPolySet;
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simplified.Simplify( SHAPE_POLY_SET::PM_STRICTLY_SIMPLE );
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if( !aChain.IsClosed() )
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return false; // the loop is not closed
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// a SHAPE_LINE_CHAIN that is in fact a circle (one 360deg arc) is exported as cylinder
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if( IsChainCircle( aChain ) )
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return MakeShapeAsCylinder( aShape, aChain, aThickness, aZposition, aOrigin );
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BRepBuilderAPI_MakeWire wire;
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bool success = true;
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gp_Pnt start = gp_Pnt( pcbIUScale.IUTomm( aChain.CPoint( 0 ).x - aOrigin.x ),
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-pcbIUScale.IUTomm( aChain.CPoint( 0 ).y - aOrigin.y ), aZposition );
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int items_count = 0;
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for( int j = 0; j < aChain.PointCount(); j++ )
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for( const SHAPE_POLY_SET::POLYGON& polygon : simplified.CPolygons() )
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{
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int next = j+1;
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gp_Pnt end;
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if( next >= aChain.PointCount() )
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next = 0;
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end = gp_Pnt( pcbIUScale.IUTomm( aChain.CPoint( next ).x - aOrigin.x ),
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-pcbIUScale.IUTomm( aChain.CPoint( next ).y - aOrigin.y ), aZposition );
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// Do not export too short segments: they create broken shape because OCC thinks
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// start point and end point are at the same place
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double seg_len = std::hypot( end.X() - start.X(), end.Y() - start.Y() );
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if( seg_len <= m_mergeOCCMaxDist )
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continue;
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try
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auto makeWireFromChain = [&]( BRepLib_MakeWire& aMkWire,
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const SHAPE_LINE_CHAIN& aChain ) -> bool
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{
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TopoDS_Edge edge;
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edge = BRepBuilderAPI_MakeEdge( start, end );
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wire.Add( edge );
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if( wire.Error() != BRepBuilderAPI_WireDone )
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try
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{
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ReportMessage( wxT( "failed to add curve\n" ) );
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// a SHAPE_LINE_CHAIN that is in fact a circle (one 360deg arc) is exported as cylinder
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if( IsChainCircle( aChain ) )
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{
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const SHAPE_ARC& arc = aChain.Arc( 0 );
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std::vector<VECTOR2D> coords = { arc.GetP0(), arc.GetArcMid(), arc.GetP1() };
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std::vector<gp_Pnt> coords3D( coords.size() );
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// Convert to 3D points
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for( int ii = 0; ii < coords.size(); ii++ )
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{
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coords3D[ii] = gp_Pnt( pcbIUScale.IUTomm( coords[ii].x - aOrigin.x ),
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-pcbIUScale.IUTomm( coords[ii].y - aOrigin.y ),
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aZposition );
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}
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Handle( Geom_TrimmedCurve ) arcOfCircle =
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GC_MakeArcOfCircle( coords3D[0], // start point
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coords3D[1], // mid point
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coords3D[2] // end point
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);
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aMkWire.Add( BRepBuilderAPI_MakeEdge( arcOfCircle ) );
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if( aMkWire.Error() != BRepBuilderAPI_WireDone )
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{
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ReportMessage( wxT( "failed to add curve\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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gp_Pnt start = gp_Pnt( pcbIUScale.IUTomm( aChain.CPoint( 0 ).x - aOrigin.x ),
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-pcbIUScale.IUTomm( aChain.CPoint( 0 ).y - aOrigin.y ),
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aZposition );
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for( int j = 0; j < aChain.PointCount(); j++ )
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{
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int next = ( j + 1 ) % aChain.PointCount();
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gp_Pnt end = gp_Pnt( pcbIUScale.IUTomm( aChain.CPoint( next ).x - aOrigin.x ),
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-pcbIUScale.IUTomm( aChain.CPoint( next ).y - aOrigin.y ),
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aZposition );
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// Do not export too short segments: they create broken shape because OCC thinks
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// start point and end point are at the same place
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double seg_len = std::hypot( end.X() - start.X(), end.Y() - start.Y() );
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if( seg_len <= m_mergeOCCMaxDist )
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continue;
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BRepBuilderAPI_MakeEdge mkEdge( start, end );
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aMkWire.Add( mkEdge );
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if( aMkWire.Error() != BRepBuilderAPI_WireDone )
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{
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ReportMessage( wxT( "failed to add curve\n" ) );
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return false;
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}
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start = end;
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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( "makeWireFromChain: OCC exception: %s\n" ),
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e.GetMessageString() ) );
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return false;
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}
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items_count++;
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}
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catch( const Standard_Failure& e )
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return true;
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};
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BRepBuilderAPI_MakeFace mkFace;
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for( int contId = 0; contId < polygon.size(); contId++ )
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{
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ReportMessage( wxString::Format( wxT( "MakeShape1: OCC exception: %s\n" ),
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e.GetMessageString() ) );
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success = false;
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const SHAPE_LINE_CHAIN& contour = polygon[contId];
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BRepLib_MakeWire mkWire;
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try
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{
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if( !makeWireFromChain( mkWire, contour ) )
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continue;
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wxASSERT( mkWire.IsDone() );
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if( contId == 0 ) // Outline
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mkFace = BRepBuilderAPI_MakeFace( mkWire.Wire() );
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else // Hole
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mkFace.Add( mkWire );
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}
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catch( const Standard_Failure& e )
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{
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ReportMessage(
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wxString::Format( wxT( "MakeShapes (contour %d): OCC exception: %s\n" ),
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contId, e.GetMessageString() ) );
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return false;
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}
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}
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if( !success )
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if( mkFace.IsDone() )
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{
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ReportMessage( wxS( "failed to add edge\n" ) );
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return false;
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TopoDS_Shape prism = BRepPrimAPI_MakePrism( mkFace, gp_Vec( 0, 0, aThickness ) );
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aShapes.push_back( prism );
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if( prism.IsNull() )
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{
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ReportMessage( wxT( "Failed to create a prismatic shape\n" ) );
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return false;
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}
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}
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else
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{
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wxASSERT( false );
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}
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start = end;
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}
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BRepBuilderAPI_MakeFace face;
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try
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{
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face = BRepBuilderAPI_MakeFace( wire );
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}
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catch( const Standard_Failure& e )
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{
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ReportMessage(
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wxString::Format( wxT( "MakeShape2 (items_count %d): OCC exception: %s\n" ),
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items_count, e.GetMessageString() ) );
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return false;
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}
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aShape = BRepPrimAPI_MakePrism( face, gp_Vec( 0, 0, aThickness ) );
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if( aShape.IsNull() )
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{
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ReportMessage( wxT( "failed to create a prismatic shape\n" ) );
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return false;
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}
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return true;
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@ -721,37 +751,14 @@ bool STEP_PCB_MODEL::CreatePCB( SHAPE_POLY_SET& aOutline, VECTOR2D aOrigin )
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const SHAPE_LINE_CHAIN& outline = aOutline.COutline( cnt );
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ReportMessage( wxString::Format( wxT( "Build board main outline %d with %d points.\n" ),
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cnt+1, outline.PointCount() ) );
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cnt + 1, outline.PointCount() ) );
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TopoDS_Shape curr_brd;
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if( !MakeShape( curr_brd, outline, m_boardThickness, 0.0, aOrigin ) )
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if( !MakeShapes( m_board_outlines, aOutline, m_boardThickness, 0.0, aOrigin ) )
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{
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// Error
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ReportMessage( wxString::Format(
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wxT( "OCC error adding main outline polygon %d with %d points.\n" ),
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cnt+1, outline.PointCount() ) );
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}
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else
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m_board_outlines.push_back( curr_brd );
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// Generate board cutouts in current main outline:
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if( aOutline.HoleCount( cnt ) > 0 )
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{
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ReportMessage( wxString::Format( wxT( "Add cutouts in outline %d (%d cutout(s)).\n" ),
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cnt+1, aOutline.HoleCount( cnt ) ) );
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}
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for( int ii = 0; ii < aOutline.HoleCount( cnt ); ii++ )
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{
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const SHAPE_LINE_CHAIN& holeOutline = aOutline.Hole( cnt, ii );
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TopoDS_Shape hole;
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if( MakeShape( hole, holeOutline, m_boardThickness + (m_copperThickness*4),
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-m_copperThickness*2, aOrigin ) )
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{
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m_cutouts.push_back( hole );
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}
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wxT( "OCC error adding main outline polygon %d with %d points.\n" ), cnt + 1,
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outline.PointCount() ) );
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}
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}
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@ -805,48 +812,45 @@ bool STEP_PCB_MODEL::CreatePCB( SHAPE_POLY_SET& aOutline, VECTOR2D aOrigin )
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// push the board to the data structure
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ReportMessage( wxT( "\nGenerate board full shape.\n" ) );
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auto pushToAssembly = [&]( std::vector<TopoDS_Shape>& aShapesList, Quantity_Color aColor, const wxString& aShapeName )
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{
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int i = 1;
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for( TopoDS_Shape& shape : aShapesList )
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{
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Handle( TDataStd_TreeNode ) node;
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auto pushToAssembly = [&]( std::vector<TopoDS_Shape>& aShapesList, Quantity_Color aColor,
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const wxString& aShapeName )
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{
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int i = 1;
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for( TopoDS_Shape& shape : aShapesList )
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{
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Handle( TDataStd_TreeNode ) node;
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// Dont expand the component or else coloring it gets hard
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TDF_Label lbl =
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m_assy->AddComponent( m_assy_label, shape, false );
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m_pcb_labels.push_back( lbl );
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// Dont expand the component or else coloring it gets hard
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TDF_Label lbl = m_assy->AddComponent( m_assy_label, shape, false );
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m_pcb_labels.push_back( lbl );
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if( m_pcb_labels.back().IsNull() )
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break;
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if( m_pcb_labels.back().IsNull() )
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break;
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lbl.FindAttribute( XCAFDoc::ShapeRefGUID(), node );
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TDF_Label shpLbl = node->Father()->Label();
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if( !shpLbl.IsNull() )
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{
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colorTool->SetColor( shpLbl, aColor, XCAFDoc_ColorSurf );
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wxString shapeName;
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lbl.FindAttribute( XCAFDoc::ShapeRefGUID(), node );
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TDF_Label shpLbl = node->Father()->Label();
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if( !shpLbl.IsNull() )
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{
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colorTool->SetColor( shpLbl, aColor, XCAFDoc_ColorSurf );
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wxString shapeName;
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if( aShapesList.size() > 1 )
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{
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shapeName = wxString::Format(
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wxT( "%s_%s_%d" ), m_pcbName, aShapeName, i );
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}
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else
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{
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shapeName = wxString::Format(
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wxT( "%s_%s" ), m_pcbName, aShapeName );
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}
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if( aShapesList.size() > 1 )
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{
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shapeName = wxString::Format( wxT( "%s_%s_%d" ), m_pcbName, aShapeName, i );
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}
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else
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{
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shapeName = wxString::Format( wxT( "%s_%s" ), m_pcbName, aShapeName );
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}
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TCollection_ExtendedString partname(
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shapeName.ToUTF8().data() );
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TDataStd_Name::Set( shpLbl, partname );
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}
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TCollection_ExtendedString partname( shapeName.ToUTF8().data() );
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TDataStd_Name::Set( shpLbl, partname );
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}
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i++;
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}
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};
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i++;
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}
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};
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// AddComponent adds a label that has a reference (not a parent/child relation) to the real
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// label. We need to extract that real label to name it for the STEP output cleanly
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@ -114,15 +114,15 @@ public:
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bool CreatePCB( SHAPE_POLY_SET& aOutline, VECTOR2D aOrigin );
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/**
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* Convert a SHAPE_LINE_CHAIN (closed) to a TopoDS_Shape (polygonal vertical prism)
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* @param aShape is the TopoDS_Shape to initialize (must be empty)
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* @param aChain is a closed SHAPE_LINE_CHAIN (a polygon)
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* Convert a SHAPE_POLY_SET to TopoDS_Shape's (polygonal vertical prisms)
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* @param aShapes is the TopoDS_Shape list to append to
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* @param aPolySet is a polygon set
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* @param aThickness is the height of the created prism
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* @param aOrigin is the origin of the coordinates
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* @return true if success
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*/
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bool MakeShape( TopoDS_Shape& aShape, const SHAPE_LINE_CHAIN& aChain, double aThickness,
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double aZposition, const VECTOR2D& aOrigin );
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bool MakeShapes( std::vector<TopoDS_Shape>& aShapes, const SHAPE_POLY_SET& aPolySet,
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double aThickness, double aZposition, const VECTOR2D& aOrigin );
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/**
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* Convert a SHAPE_LINE_CHAIN containing only one 360 deg arc to a TopoDS_Shape
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