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STEP export: add bounding box optimizations for cutting holes.

This commit is contained in:
Alex Shvartzkop 2023-08-24 05:42:13 +03:00
parent 4cb60bac1b
commit cb54bdfa84
1 changed files with 34 additions and 12 deletions
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46
pcbnew/exporters/step/step_pcb_model.cpp
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@ -78,6 +78,9 @@
#include <BRepPrimAPI_MakeCylinder.hxx>
#include <BRepAlgoAPI_Cut.hxx>
#include <BRepBndLib.hxx>
#include <Bnd_BoundSortBox.hxx>
#include <TopoDS.hxx>
#include <TopoDS_Wire.hxx>
#include <TopoDS_Face.hxx>
@ -768,21 +771,40 @@ bool STEP_PCB_MODEL::CreatePCB( SHAPE_POLY_SET& aOutline, VECTOR2D aOrigin )
ReportMessage( wxString::Format( wxT( "Build board cutouts and holes (%d hole(s)).\n" ),
(int) m_cutouts.size() ) );
TopTools_ListOfShape holelist;
Bnd_BoundSortBox bsb;
for( TopoDS_Shape& hole : m_cutouts )
holelist.Append( hole );
Handle( Bnd_HArray1OfBox ) holeBoxSet = new Bnd_HArray1OfBox( 0, m_cutouts.size() - 1 );
auto subtractShapes = [&]( const wxString& aWhat, std::vector<TopoDS_Shape>& aShapesList,
TopTools_ListOfShape& aSubtrahend )
for( int i = 0; i < m_cutouts.size(); i++ )
{
Bnd_Box bbox;
BRepBndLib::Add( m_cutouts[i], bbox );
( *holeBoxSet )[i] = bbox;
}
bsb.Initialize( holeBoxSet );
auto subtractShapes = [&]( const wxString& aWhat, std::vector<TopoDS_Shape>& aShapesList )
{
// Remove holes for each item (board body or bodies, one can have more than one board)
int cnt = 0;
for( TopoDS_Shape& shape : aShapesList )
{
if( cnt == 0 )
ReportMessage( wxString::Format( _( "Build holes for %s\n" ), aWhat ) );
Bnd_Box shapeBbox;
BRepBndLib::Add( shape, shapeBbox );
const TColStd_ListOfInteger& indices = bsb.Compare( shapeBbox );
if( indices.IsEmpty() )
continue;
TopTools_ListOfShape holelist;
for( const Standard_Integer& index : indices )
holelist.Append( m_cutouts[index] );
if( cnt == 0 )
ReportMessage( wxString::Format( _( "Build holes for %s\n" ), aWhat ) );
cnt++;
@ -796,17 +818,17 @@ bool STEP_PCB_MODEL::CreatePCB( SHAPE_POLY_SET& aOutline, VECTOR2D aOrigin )
BRepAlgoAPI_Cut Cut;
Cut.SetArguments( mainbrd );
Cut.SetTools( aSubtrahend );
Cut.SetTools( holelist );
Cut.Build();
shape = Cut.Shape();
}
};
subtractShapes( _( "pads" ), m_board_copper_pads, holelist );
subtractShapes( _( "shapes" ), m_board_outlines, holelist );
subtractShapes( _( "tracks" ), m_board_copper_tracks, holelist );
subtractShapes( _( "zones" ), m_board_copper_zones, holelist );
subtractShapes( _( "pads" ), m_board_copper_pads );
subtractShapes( _( "shapes" ), m_board_outlines );
subtractShapes( _( "tracks" ), m_board_copper_tracks );
subtractShapes( _( "zones" ), m_board_copper_zones );
}
// push the board to the data structure