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119 lines
3.7 KiB
C++
119 lines
3.7 KiB
C++
// Created on: 1999-06-21
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// Created by: Galina KULIKOVA
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// Copyright (c) 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 _ShapeAnalysis_TransferParameters_HeaderFile
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#define _ShapeAnalysis_TransferParameters_HeaderFile
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#include <Standard.hxx>
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#include <Standard_Type.hxx>
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#include <Standard_Real.hxx>
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#include <TopoDS_Edge.hxx>
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#include <TopoDS_Face.hxx>
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#include <MMgt_TShared.hxx>
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#include <TColStd_HSequenceOfReal.hxx>
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#include <Standard_Boolean.hxx>
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class TopoDS_Edge;
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class TopoDS_Face;
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class ShapeAnalysis_TransferParameters;
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DEFINE_STANDARD_HANDLE(ShapeAnalysis_TransferParameters, MMgt_TShared)
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//! This tool is used for transferring parameters
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//! from 3d curve of the edge to pcurve and vice versa.
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//!
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//! Default behaviour is to trsnafer parameters with help
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//! of linear transformation:
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//!
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//! T2d = myShift + myScale * T3d
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//! where
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//! myScale = ( Last2d - First2d ) / ( Last3d - First3d )
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//! myShift = First2d - First3d * myScale
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//! [First3d, Last3d] and [First2d, Last2d] are ranges of
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//! edge on curve and pcurve
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//!
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//! This behaviour can be redefined in derived classes, for example,
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//! using projection.
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class ShapeAnalysis_TransferParameters : public MMgt_TShared
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{
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public:
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//! Creates empty tool with myShift = 0 and myScale = 1
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Standard_EXPORT ShapeAnalysis_TransferParameters();
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//! Creates a tool and initializes it with edge and face
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Standard_EXPORT ShapeAnalysis_TransferParameters(const TopoDS_Edge& E, const TopoDS_Face& F);
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//! Initialize a tool with edge and face
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Standard_EXPORT virtual void Init (const TopoDS_Edge& E, const TopoDS_Face& F);
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//! Sets maximal tolerance to use linear recomputation of
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//! parameters.
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Standard_EXPORT void SetMaxTolerance (const Standard_Real maxtol);
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//! Transfers parameters given by sequence Params from 3d curve
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//! to pcurve (if To2d is True) or back (if To2d is False)
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Standard_EXPORT virtual Handle(TColStd_HSequenceOfReal) Perform (const Handle(TColStd_HSequenceOfReal)& Params, const Standard_Boolean To2d);
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//! Transfers parameter given by sequence Params from 3d curve
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//! to pcurve (if To2d is True) or back (if To2d is False)
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Standard_EXPORT virtual Standard_Real Perform (const Standard_Real Param, const Standard_Boolean To2d);
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//! Recomputes range of curves from NewEdge.
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//! If Is2d equals True parameters are recomputed by curve2d else by curve3d.
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Standard_EXPORT virtual void TransferRange (TopoDS_Edge& newEdge, const Standard_Real prevPar, const Standard_Real currPar, const Standard_Boolean To2d);
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//! Returns True if 3d curve of edge and pcurve are SameRange
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//! (in default implementation, if myScale == 1 and myShift == 0)
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Standard_EXPORT virtual Standard_Boolean IsSameRange() const;
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DEFINE_STANDARD_RTTIEXT(ShapeAnalysis_TransferParameters,MMgt_TShared)
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protected:
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Standard_Real myFirst;
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Standard_Real myLast;
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TopoDS_Edge myEdge;
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Standard_Real myMaxTolerance;
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private:
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Standard_Real myShift;
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Standard_Real myScale;
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Standard_Real myFirst2d;
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Standard_Real myLast2d;
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TopoDS_Face myFace;
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};
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#endif // _ShapeAnalysis_TransferParameters_HeaderFile
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