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OCCT/src/ModelingAlgorithms/TKTopAlgo/BRepApprox/BRepApprox_TheComputeLineBezierOfApprox.hxx
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// Created on: 1995-06-06
// Created by: Jean Yves LEBEY
// Copyright (c) 1995-1999 Matra Datavision
// Copyright (c) 1999-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.
#ifndef _BRepApprox_TheComputeLineBezierOfApprox_HeaderFile
#define _BRepApprox_TheComputeLineBezierOfApprox_HeaderFile
#include <Standard.hxx>
#include <Standard_DefineAlloc.hxx>
#include <Standard_Handle.hxx>
#include <AppParCurves_SequenceOfMultiCurve.hxx>
#include <AppParCurves_MultiCurve.hxx>
#include <AppParCurves_MultiBSpCurve.hxx>
#include <Approx_ParametrizationType.hxx>
#include <TColStd_HArray1OfReal.hxx>
#include <Approx_SequenceOfHArray1OfReal.hxx>
#include <TColStd_SequenceOfReal.hxx>
#include <AppParCurves_HArray1OfConstraintCouple.hxx>
#include <Standard_Integer.hxx>
#include <AppParCurves_Constraint.hxx>
#include <math_Vector.hxx>
#include <TColStd_Array1OfReal.hxx>
class BRepApprox_TheMultiLineOfApprox;
class BRepApprox_TheMultiLineToolOfApprox;
class BRepApprox_MyGradientOfTheComputeLineBezierOfApprox;
class BRepApprox_ParLeastSquareOfMyGradientOfTheComputeLineBezierOfApprox;
class BRepApprox_ResConstraintOfMyGradientOfTheComputeLineBezierOfApprox;
class BRepApprox_ParFunctionOfMyGradientOfTheComputeLineBezierOfApprox;
class BRepApprox_Gradient_BFGSOfMyGradientOfTheComputeLineBezierOfApprox;
class AppParCurves_MultiCurve;
class AppParCurves_MultiBSpCurve;
class BRepApprox_TheComputeLineBezierOfApprox
{
public:
DEFINE_STANDARD_ALLOC
//! The MultiLine <Line> will be approximated until tolerances
//! will be reached.
//! The approximation will be done from degreemin to degreemax
//! with a cutting if the corresponding boolean is True.
//! If <Squares> is True, the computation will be done with
//! no iteration at all.
Standard_EXPORT BRepApprox_TheComputeLineBezierOfApprox(
const BRepApprox_TheMultiLineOfApprox& Line,
const Standard_Integer degreemin = 4,
const Standard_Integer degreemax = 8,
const Standard_Real Tolerance3d = 1.0e-3,
const Standard_Real Tolerance2d = 1.0e-6,
const Standard_Integer NbIterations = 5,
const Standard_Boolean cutting = Standard_True,
const Approx_ParametrizationType parametrization = Approx_ChordLength,
const Standard_Boolean Squares = Standard_False);
//! The MultiLine <Line> will be approximated until tolerances
//! will be reached.
//! The approximation will be done from degreemin to degreemax
//! with a cutting if the corresponding boolean is True.
//! If <Squares> is True, the computation will be done with
//! no iteration at all.
Standard_EXPORT BRepApprox_TheComputeLineBezierOfApprox(
const BRepApprox_TheMultiLineOfApprox& Line,
const math_Vector& Parameters,
const Standard_Integer degreemin = 4,
const Standard_Integer degreemax = 8,
const Standard_Real Tolerance3d = 1.0e-03,
const Standard_Real Tolerance2d = 1.0e-06,
const Standard_Integer NbIterations = 5,
const Standard_Boolean cutting = Standard_True,
const Standard_Boolean Squares = Standard_False);
//! Initializes the fields of the algorithm.
Standard_EXPORT BRepApprox_TheComputeLineBezierOfApprox(
const math_Vector& Parameters,
const Standard_Integer degreemin = 4,
const Standard_Integer degreemax = 8,
const Standard_Real Tolerance3d = 1.0e-03,
const Standard_Real Tolerance2d = 1.0e-06,
const Standard_Integer NbIterations = 5,
const Standard_Boolean cutting = Standard_True,
const Standard_Boolean Squares = Standard_False);
//! Initializes the fields of the algorithm.
Standard_EXPORT BRepApprox_TheComputeLineBezierOfApprox(
const Standard_Integer degreemin = 4,
const Standard_Integer degreemax = 8,
const Standard_Real Tolerance3d = 1.0e-03,
const Standard_Real Tolerance2d = 1.0e-06,
const Standard_Integer NbIterations = 5,
const Standard_Boolean cutting = Standard_True,
const Approx_ParametrizationType parametrization = Approx_ChordLength,
const Standard_Boolean Squares = Standard_False);
//! Initializes the fields of the algorithm.
Standard_EXPORT void Init(const Standard_Integer degreemin = 4,
const Standard_Integer degreemax = 8,
const Standard_Real Tolerance3d = 1.0e-03,
const Standard_Real Tolerance2d = 1.0e-06,
const Standard_Integer NbIterations = 5,
const Standard_Boolean cutting = Standard_True,
const Approx_ParametrizationType parametrization = Approx_ChordLength,
const Standard_Boolean Squares = Standard_False);
//! runs the algorithm after having initialized the fields.
Standard_EXPORT void Perform(const BRepApprox_TheMultiLineOfApprox& Line);
//! changes the degrees of the approximation.
Standard_EXPORT void SetDegrees(const Standard_Integer degreemin,
const Standard_Integer degreemax);
//! Changes the tolerances of the approximation.
Standard_EXPORT void SetTolerances(const Standard_Real Tolerance3d,
const Standard_Real Tolerance2d);
//! changes the first and the last constraint points.
Standard_EXPORT void SetConstraints(const AppParCurves_Constraint firstC,
const AppParCurves_Constraint lastC);
//! returns False if at a moment of the approximation,
//! the status NoApproximation has been sent by the user
//! when more points were needed.
Standard_EXPORT Standard_Boolean IsAllApproximated() const;
//! returns False if the status NoPointsAdded has been sent.
Standard_EXPORT Standard_Boolean IsToleranceReached() const;
//! returns the tolerances 2d and 3d of the <Index> MultiCurve.
Standard_EXPORT void Error(const Standard_Integer Index,
Standard_Real& tol3d,
Standard_Real& tol2d) const;
//! Returns the number of MultiCurve doing the approximation
//! of the MultiLine.
Standard_EXPORT Standard_Integer NbMultiCurves() const;
//! returns the result of the approximation.
Standard_EXPORT const AppParCurves_MultiCurve& Value(const Standard_Integer Index = 1) const;
//! returns the result of the approximation.
Standard_EXPORT AppParCurves_MultiCurve& ChangeValue(const Standard_Integer Index = 1);
//! returns the result of the approximation.
Standard_EXPORT const AppParCurves_MultiBSpCurve& SplineValue();
//! returns the type of parametrization
Standard_EXPORT Approx_ParametrizationType Parametrization() const;
//! returns the new parameters of the approximation
//! corresponding to the points of the multicurve <Index>.
Standard_EXPORT const TColStd_Array1OfReal& Parameters(const Standard_Integer Index = 1) const;
protected:
private:
//! is internally used in the algorithm.
Standard_EXPORT Standard_Boolean Compute(const BRepApprox_TheMultiLineOfApprox& Line,
const Standard_Integer fpt,
const Standard_Integer lpt,
math_Vector& Para,
Standard_Real& TheTol3d,
Standard_Real& TheTol2d,
Standard_Integer& indbad);
//! is internally used in the algorithm.
Standard_EXPORT Standard_Boolean ComputeCurve(const BRepApprox_TheMultiLineOfApprox& Line,
const Standard_Integer firspt,
const Standard_Integer lastpt);
//! computes new parameters between firstP and lastP.
Standard_EXPORT void Parameters(const BRepApprox_TheMultiLineOfApprox& Line,
const Standard_Integer firstP,
const Standard_Integer LastP,
math_Vector& TheParameters) const;
Standard_EXPORT Standard_Real SearchFirstLambda(const BRepApprox_TheMultiLineOfApprox& Line,
const math_Vector& Para,
const math_Vector& V,
const Standard_Integer index) const;
Standard_EXPORT Standard_Real SearchLastLambda(const BRepApprox_TheMultiLineOfApprox& Line,
const math_Vector& Para,
const math_Vector& V,
const Standard_Integer index) const;
Standard_EXPORT void FirstTangencyVector(const BRepApprox_TheMultiLineOfApprox& Line,
const Standard_Integer index,
math_Vector& V) const;
Standard_EXPORT void LastTangencyVector(const BRepApprox_TheMultiLineOfApprox& Line,
const Standard_Integer index,
math_Vector& V) const;
AppParCurves_SequenceOfMultiCurve myMultiCurves;
AppParCurves_MultiCurve TheMultiCurve;
AppParCurves_MultiBSpCurve myspline;
Standard_Boolean alldone;
Standard_Boolean tolreached;
Approx_ParametrizationType Par;
Handle(TColStd_HArray1OfReal) myParameters;
Handle(TColStd_HArray1OfReal) myfirstParam;
Approx_SequenceOfHArray1OfReal myPar;
TColStd_SequenceOfReal Tolers3d;
TColStd_SequenceOfReal Tolers2d;
Handle(AppParCurves_HArray1OfConstraintCouple) myConstraints;
Standard_Integer mydegremin;
Standard_Integer mydegremax;
Standard_Real mytol3d;
Standard_Real mytol2d;
Standard_Real currenttol3d;
Standard_Real currenttol2d;
Standard_Boolean mycut;
Standard_Boolean mysquares;
Standard_Integer myitermax;
AppParCurves_Constraint myfirstC;
AppParCurves_Constraint mylastC;
Standard_Integer myMultiLineNb;
Standard_Boolean myIsClear;
};
#endif // _BRepApprox_TheComputeLineBezierOfApprox_HeaderFile
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