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b608f6a564
Method BRepLib_MakeFace::CheckInside() is not called for open wire. So, if the input wire is open its orientation is not changed in the result face.
149 lines
5.0 KiB
C++
149 lines
5.0 KiB
C++
// Created on: 1995-04-19
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// Created by: Yves FRICAUD
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// Copyright (c) 1995-1999 Matra Datavision
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// 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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#ifndef _BRepFill_OffsetWire_HeaderFile
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#define _BRepFill_OffsetWire_HeaderFile
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#include <Standard.hxx>
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#include <Standard_DefineAlloc.hxx>
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#include <Standard_Handle.hxx>
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#include <TopoDS_Face.hxx>
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#include <Standard_Real.hxx>
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#include <Standard_Boolean.hxx>
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#include <TopoDS_Shape.hxx>
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#include <GeomAbs_JoinType.hxx>
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#include <BRepFill_IndexedDataMapOfOrientedShapeListOfShape.hxx>
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#include <BRepMAT2d_BisectingLocus.hxx>
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#include <BRepMAT2d_LinkTopoBilo.hxx>
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#include <TopTools_DataMapOfShapeShape.hxx>
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#include <TopTools_ListOfShape.hxx>
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#include <BRepFill_DataMapOfOrientedShapeListOfShape.hxx>
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#include <TopTools_SequenceOfShape.hxx>
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#include <TColgp_SequenceOfPnt.hxx>
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class Standard_ConstructionError;
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class Standard_NoSuchObject;
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class TopoDS_Face;
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class BRepMAT2d_BisectingLocus;
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class BRepMAT2d_LinkTopoBilo;
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class TopoDS_Shape;
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class Bisector_Bisec;
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class BRepFill_TrimEdgeTool;
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//! Constructs a Offset Wire to a spine (wire or face).
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//! Offset direction will be to outer region in case of
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//! positive offset value and to inner region in case of
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//! negative offset value.
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//! Inner/Outer region for open wire is defined by the
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//! following rule: when we go along the wire (taking into
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//! account of edges orientation) then outer region will be
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//! on the right side, inner region will be on the left side.
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//! In case of closed wire, inner region will always be
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//! inside the wire (at that, edges orientation is not taken
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//! into account).
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//! The Wire or the Face must be planar and oriented correctly.
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class BRepFill_OffsetWire
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{
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public:
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DEFINE_STANDARD_ALLOC
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Standard_EXPORT BRepFill_OffsetWire();
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Standard_EXPORT BRepFill_OffsetWire(const TopoDS_Face& Spine, const GeomAbs_JoinType Join = GeomAbs_Arc, const Standard_Boolean IsOpenResult = Standard_False);
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//! Initialize the evaluation of Offseting.
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Standard_EXPORT void Init (const TopoDS_Face& Spine, const GeomAbs_JoinType Join = GeomAbs_Arc, const Standard_Boolean IsOpenResult = Standard_False);
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//! Performs an OffsetWire at an altitude <Alt> from
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//! the face ( According to the orientation of the
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//! face)
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Standard_EXPORT void Perform (const Standard_Real Offset, const Standard_Real Alt = 0.0);
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//! Performs an OffsetWire
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Standard_EXPORT void PerformWithBiLo (const TopoDS_Face& WSP, const Standard_Real Offset, const BRepMAT2d_BisectingLocus& Locus, BRepMAT2d_LinkTopoBilo& Link, const GeomAbs_JoinType Join = GeomAbs_Arc, const Standard_Real Alt = 0.0);
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Standard_EXPORT Standard_Boolean IsDone() const;
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Standard_EXPORT const TopoDS_Face& Spine() const;
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//! returns the generated shape.
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Standard_EXPORT const TopoDS_Shape& Shape() const;
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//! Returns the shapes created from a subshape
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//! <SpineShape> of the spine.
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//! Returns the last computed Offset.
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Standard_EXPORT const TopTools_ListOfShape& GeneratedShapes (const TopoDS_Shape& SpineShape);
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Standard_EXPORT GeomAbs_JoinType JoinType() const;
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protected:
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private:
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Standard_EXPORT BRepFill_IndexedDataMapOfOrientedShapeListOfShape& Generated();
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//! Prepare the spine as follow
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//! - Cut the spine-Edges at the extrema of curvature and
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//! at the inflexion points.
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Standard_EXPORT void PrepareSpine();
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//! Add the OffsetWire <Other> to <me> and update <myMap>
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Standard_EXPORT void Add (const BRepFill_OffsetWire& Other);
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Standard_EXPORT void UpdateDetromp (BRepFill_DataMapOfOrientedShapeListOfShape& Detromp, const TopoDS_Shape& Shape1, const TopoDS_Shape& Shape2, const TopTools_SequenceOfShape& Vertices, const TColgp_SequenceOfPnt& Params, const Bisector_Bisec& Bisec, const Standard_Boolean SOnE, const Standard_Boolean EOnE, const BRepFill_TrimEdgeTool& Trim) const;
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//! Constructs the wires with the trimmed offset edges.
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Standard_EXPORT void MakeWires();
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//! Fix holes between open wires where it is possible
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Standard_EXPORT void FixHoles();
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TopoDS_Face mySpine;
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TopoDS_Face myWorkSpine;
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Standard_Real myOffset;
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Standard_Boolean myIsOpenResult;
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TopoDS_Shape myShape;
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Standard_Boolean myIsDone;
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GeomAbs_JoinType myJoinType;
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BRepFill_IndexedDataMapOfOrientedShapeListOfShape myMap;
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BRepMAT2d_BisectingLocus myBilo;
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BRepMAT2d_LinkTopoBilo myLink;
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TopTools_DataMapOfShapeShape myMapSpine;
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Standard_Boolean myCallGen;
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};
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#endif // _BRepFill_OffsetWire_HeaderFile
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