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173 lines
6.9 KiB
C++
173 lines
6.9 KiB
C++
// Created on: 1994-07-06
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// Created by: Laurent PAINNOT
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// Copyright (c) 1994-1999 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 _Extrema_ExtCC_HeaderFile
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#define _Extrema_ExtCC_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 <Extrema_ECC.hxx>
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#include <Standard_Boolean.hxx>
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#include <Extrema_SequenceOfPOnCurv.hxx>
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#include <TColStd_SequenceOfReal.hxx>
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#include <Standard_Integer.hxx>
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#include <Standard_Address.hxx>
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#include <Standard_Real.hxx>
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#include <gp_Pnt.hxx>
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class Adaptor3d_Curve;
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class Extrema_POnCurv;
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class gp_Pnt;
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class Extrema_ExtElC;
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class Extrema_ECC;
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//! It calculates all the distance between two curves.
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//! These distances can be maximum or minimum.
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class Extrema_ExtCC
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{
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public:
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DEFINE_STANDARD_ALLOC
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Standard_EXPORT Extrema_ExtCC(const Standard_Real TolC1 = 1.0e-10, const Standard_Real TolC2 = 1.0e-10);
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//! It calculates all the distances.
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Standard_EXPORT Extrema_ExtCC(const Adaptor3d_Curve& C1, const Adaptor3d_Curve& C2, const Standard_Real TolC1 = 1.0e-10, const Standard_Real TolC2 = 1.0e-10);
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//! It calculates all the distances.
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Standard_EXPORT Extrema_ExtCC(const Adaptor3d_Curve& C1, const Adaptor3d_Curve& C2, const Standard_Real U1, const Standard_Real U2, const Standard_Real V1, const Standard_Real V2, const Standard_Real TolC1 = 1.0e-10, const Standard_Real TolC2 = 1.0e-10);
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//! Initializes but does not perform algorithm.
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Standard_EXPORT void Initialize (const Adaptor3d_Curve& C1,
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const Adaptor3d_Curve& C2,
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const Standard_Real TolC1 = 1.0e-10,
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const Standard_Real TolC2 = 1.0e-10);
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//! Initializes but does not perform algorithm.
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Standard_EXPORT void Initialize (const Adaptor3d_Curve& C1,
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const Adaptor3d_Curve& C2,
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const Standard_Real U1,
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const Standard_Real U2,
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const Standard_Real V1,
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const Standard_Real V2,
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const Standard_Real TolC1 = 1.0e-10,
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const Standard_Real TolC2 = 1.0e-10);
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Standard_EXPORT void SetCurve (const Standard_Integer theRank, const Adaptor3d_Curve& C);
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Standard_EXPORT void SetCurve (const Standard_Integer theRank, const Adaptor3d_Curve& C, const Standard_Real Uinf, const Standard_Real Usup);
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Standard_EXPORT void SetRange (const Standard_Integer theRank, const Standard_Real Uinf, const Standard_Real Usup);
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Standard_EXPORT void SetTolerance (const Standard_Integer theRank, const Standard_Real Tol);
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Standard_EXPORT void Perform();
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//! Returns True if the distances are found.
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Standard_EXPORT Standard_Boolean IsDone() const;
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//! Returns the number of extremum distances.
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Standard_EXPORT Standard_Integer NbExt() const;
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//! Returns True if the two curves are parallel.
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Standard_EXPORT Standard_Boolean IsParallel() const;
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//! Returns the value of the Nth extremum square distance.
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Standard_EXPORT Standard_Real SquareDistance (const Standard_Integer N = 1) const;
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//! Returns the points of the Nth extremum distance.
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//! P1 is on the first curve, P2 on the second one.
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Standard_EXPORT void Points (const Standard_Integer N, Extrema_POnCurv& P1, Extrema_POnCurv& P2) const;
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//! if the curve is a trimmed curve,
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//! dist11 is a square distance between the point on C1
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//! of parameter FirstParameter and the point of
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//! parameter FirstParameter on C2.
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Standard_EXPORT void TrimmedSquareDistances (Standard_Real& dist11, Standard_Real& distP12, Standard_Real& distP21, Standard_Real& distP22, gp_Pnt& P11, gp_Pnt& P12, gp_Pnt& P21, gp_Pnt& P22) const;
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//! Set flag for single extrema computation. Works on parametric solver only.
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Standard_EXPORT void SetSingleSolutionFlag (const Standard_Boolean theSingleSolutionFlag);
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//! Get flag for single extrema computation. Works on parametric solver only.
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Standard_EXPORT Standard_Boolean GetSingleSolutionFlag () const;
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protected:
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//! Prepares the extrema result(s) for analytical cases (line, circle, ellipsis etc.)
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Standard_EXPORT void PrepareResults (const Extrema_ExtElC& AlgExt,
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const Standard_Boolean theIsInverse,
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const Standard_Real Ut11,
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const Standard_Real Ut12,
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const Standard_Real Ut21,
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const Standard_Real Ut22);
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//! Prepares the extrema result(s) for general cases (e.g. with B-spline curves).
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Standard_EXPORT void PrepareResults (const Extrema_ECC& AlgExt,
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const Standard_Real Ut11,
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const Standard_Real Ut12,
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const Standard_Real Ut21,
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const Standard_Real Ut22);
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//! Prepares the extrema result(s) in case when the given curves are parallel.
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Standard_EXPORT void PrepareParallelResult(const Standard_Real theUt11,
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const Standard_Real theUt12,
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const Standard_Real theUt21,
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const Standard_Real theUt22,
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const Standard_Real theSqDist);
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// Clears all found extremas.
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// This method does not change any flags (e.g. Done or IsParallel)
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void ClearSolutions()
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{
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mySqDist.Clear();
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mypoints.Clear();
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}
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private:
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// disallow copies
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Extrema_ExtCC (Extrema_ExtCC& ) Standard_DELETE;
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Extrema_ExtCC& operator= (Extrema_ExtCC& ) Standard_DELETE;
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private:
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Standard_Boolean myIsFindSingleSolution; // Default value is false.
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Extrema_ECC myECC;
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Standard_Boolean myDone;
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Standard_Boolean myIsPar;
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Extrema_SequenceOfPOnCurv mypoints;
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TColStd_SequenceOfReal mySqDist;
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const Adaptor3d_Curve* myC[2];
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Standard_Real myInf[2];
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Standard_Real mySup[2];
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Standard_Real myTol[2];
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gp_Pnt P1f;
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gp_Pnt P1l;
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gp_Pnt P2f;
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gp_Pnt P2l;
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Standard_Real mydist11;
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Standard_Real mydist12;
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Standard_Real mydist21;
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Standard_Real mydist22;
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};
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#endif // _Extrema_ExtCC_HeaderFile
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