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d5f74e42d6
License statement text corrected; compiler warnings caused by Bison 2.41 disabled for MSVC; a few other compiler warnings on 54-bit Windows eliminated by appropriate type cast Wrong license statements corrected in several files. Copyright and license statements added in XSD and GLSL files. Copyright year updated in some files. Obsolete documentation files removed from DrawResources.
122 lines
3.9 KiB
C++
122 lines
3.9 KiB
C++
// Copyright (c) 1999-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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//szv#4 S4163
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#include <ShapeUpgrade_ShellSewing.ixx>
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#include <TopoDS.hxx>
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#include <TopoDS_Shell.hxx>
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#include <TopoDS_Solid.hxx>
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#include <TopExp_Explorer.hxx>
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#include <BRepBuilderAPI_Sewing.hxx>
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#include <BRepClass3d_SolidClassifier.hxx>
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#include <ShapeAnalysis_ShapeTolerance.hxx>
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//=======================================================================
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//function : ShapeUpgrade_ShellSewing
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//purpose :
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//=======================================================================
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ShapeUpgrade_ShellSewing::ShapeUpgrade_ShellSewing()
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{
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myReShape = new ShapeBuild_ReShape;
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}
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//=======================================================================
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//function : ApplySewing
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//purpose :
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//=======================================================================
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void ShapeUpgrade_ShellSewing::Init (const TopoDS_Shape& shape)
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{
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if (shape.IsNull()) return;
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if (shape.ShapeType() == TopAbs_SHELL) myShells.Add (shape);
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else {
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for (TopExp_Explorer exs (shape,TopAbs_SHELL); exs.More(); exs.Next()) {
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myShells.Add (exs.Current());
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}
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}
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}
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//=======================================================================
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//function : Prepare
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//purpose :
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//=======================================================================
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Standard_Integer ShapeUpgrade_ShellSewing::Prepare (const Standard_Real tol)
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{
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Standard_Integer nb = myShells.Extent(), ns = 0;
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for ( Standard_Integer i = 1; i <= nb; i ++) {
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TopoDS_Shell sl = TopoDS::Shell ( myShells.FindKey (i) );
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BRepBuilderAPI_Sewing ss ( tol );
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TopExp_Explorer exp(sl,TopAbs_FACE);
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for (; exp.More(); exp.Next()) ss.Add(exp.Current());
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ss.Perform();
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TopoDS_Shape newsh = ss.SewedShape();
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if (!newsh.IsNull()) { myReShape->Replace (sl,newsh); ns ++; }
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}
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return ns;
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}
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//=======================================================================
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//function : Apply
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//purpose :
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//=======================================================================
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TopoDS_Shape ShapeUpgrade_ShellSewing::Apply (const TopoDS_Shape& shape,
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const Standard_Real tol)
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{
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if ( shape.IsNull() || myShells.Extent() == 0 ) return shape;
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TopoDS_Shape res = myReShape->Apply ( shape, TopAbs_FACE, 2 );
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// A present orienter les solides correctement
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myReShape->Clear();
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Standard_Integer ns = 0;
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for (TopExp_Explorer exd (shape,TopAbs_SOLID); exd.More(); exd.Next()) {
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TopoDS_Solid sd = TopoDS::Solid ( exd.Current() );
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BRepClass3d_SolidClassifier bsc3d (sd);
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bsc3d.PerformInfinitePoint ( tol );
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if (bsc3d.State() == TopAbs_IN) { myReShape->Replace (sd,sd.Reversed()); ns++; }
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}
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//szv#4:S4163:12Mar99 optimized
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if (ns != 0) res = myReShape->Apply( res, TopAbs_SHELL, 2 );
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return res;
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}
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//=======================================================================
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//function : ApplySewing
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//purpose :
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//=======================================================================
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TopoDS_Shape ShapeUpgrade_ShellSewing::ApplySewing (const TopoDS_Shape& shape,
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const Standard_Real tol)
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{
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if (shape.IsNull()) return shape;
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Standard_Real t = tol;
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if (t <= 0.) {
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ShapeAnalysis_ShapeTolerance stu;
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t = stu.Tolerance (shape,0); // tolerance moyenne
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}
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Init ( shape );
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if ( Prepare ( t ) ) return Apply ( shape, t );
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return TopoDS_Shape();
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}
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