113 lines
4.8 KiB
C++
113 lines
4.8 KiB
C++
/***************************************************************************
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* Copyright (c) 2019 Werner Mayer <wmayer[at]users.sourceforge.net> *
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* *
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* This file is part of the FreeCAD CAx development system. *
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Library General Public *
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* License as published by the Free Software Foundation; either *
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* version 2 of the License, or (at your option) any later version. *
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* *
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* This library 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 Library General Public License for more details. *
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* *
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* You should have received a copy of the GNU Library General Public *
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* License along with this library; see the file COPYING.LIB. If not, *
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* write to the Free Software Foundation, Inc., 59 Temple Place, *
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* Suite 330, Boston, MA 02111-1307, USA *
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* *
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***************************************************************************/
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#ifndef PART_BREPOFFSETAPI_MAKEOFFSETFIX_H
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#define PART_BREPOFFSETAPI_MAKEOFFSETFIX_H
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#include <list>
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#include <map>
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#include <Mod/Part/PartGlobal.h>
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#include <BRepOffsetAPI_MakeOffset.hxx>
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#include <GeomAbs_CurveType.hxx>
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#include <Standard_Version.hxx>
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namespace Part {
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/*!
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* \brief The BRepOffsetAPI_MakeOffsetFix class
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* This class works around a limitation of the BRepOffsetAPI_MakeOffset which
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* returns unexpected results when an input wire has set a placement and consists
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* of a single edge only.
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*/
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class PartExport BRepOffsetAPI_MakeOffsetFix : public BRepBuilderAPI_MakeShape
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{
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public:
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BRepOffsetAPI_MakeOffsetFix();
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BRepOffsetAPI_MakeOffsetFix(const GeomAbs_JoinType Join, const Standard_Boolean IsOpenResult);
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~BRepOffsetAPI_MakeOffsetFix() override;
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//! Initializes the algorithm to construct parallels to the wire Spine.
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void AddWire (const TopoDS_Wire& Spine);
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//! Computes a parallel to the spine at distance Offset and
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//! at an altitude Alt from the plane of the spine in relation
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//! to the normal to the spine.
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//! Exceptions: StdFail_NotDone if the offset is not built.
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void Perform (const Standard_Real Offset, const Standard_Real Alt = 0.0);
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//! Builds the resulting shape (redefined from MakeShape).
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#if OCC_VERSION_HEX >= 0x070600
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void Build(const Message_ProgressRange& theRange = Message_ProgressRange()) override;
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#else
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void Build() override;
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#endif
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//! Initializes the algorithm to construct parallels to the spine Spine.
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//! Join defines the type of parallel generated by the
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//! salient vertices of the spine.
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//! The default type is GeomAbs_Arc where the vertices generate
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//! sections of a circle.
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//! If join type is GeomAbs_Intersection, the edges that
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//! intersect in a salient vertex generate the edges
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//! prolonged until intersection.
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void Init(const TopoDS_Face& Spine, const GeomAbs_JoinType Join = GeomAbs_Arc, const Standard_Boolean IsOpenResult = Standard_False);
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//! Initialize the evaluation of Offsetting.
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void Init(const GeomAbs_JoinType Join = GeomAbs_Arc, const Standard_Boolean IsOpenResult = Standard_False);
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Standard_Boolean IsDone() const override;
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//! Returns a shape built by the shape construction algorithm.
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//! Raises exception StdFail_NotDone if the shape was not built.
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const TopoDS_Shape& Shape() override;
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//! returns a list of the created shapes
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//! from the shape <S>.
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const TopTools_ListOfShape& Generated (const TopoDS_Shape& S) override;
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//! Returns the list of shapes modified from the shape
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//! <S>.
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const TopTools_ListOfShape& Modified (const TopoDS_Shape& S) override;
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//! Returns true if the shape S has been deleted.
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Standard_Boolean IsDeleted (const TopoDS_Shape& S) override;
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//! Replaces the given curve type with a B-Spline. Input shape <S>
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//! must be a wire or a compound of wires
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TopoDS_Shape Replace(GeomAbs_CurveType, const TopoDS_Shape& S) const;
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private:
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TopoDS_Wire ReplaceEdges(GeomAbs_CurveType, const TopoDS_Wire& S) const;
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void MakeWire(TopoDS_Shape&);
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private:
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BRepOffsetAPI_MakeOffset mkOffset;
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std::list<std::pair<TopoDS_Shape, TopLoc_Location> > myLocations;
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TopoDS_Shape myResult;
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};
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}
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#endif // PART_BREPOFFSETAPI_MAKEOFFSETFIX_H
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