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198 lines
7.4 KiB
C++
198 lines
7.4 KiB
C++
// Created on: 1993-01-09
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// Created by: CKY / Contract Toubro-Larsen ( Kiran )
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// Copyright (c) 1993-1999 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 _IGESGeom_BSplineSurface_HeaderFile
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#define _IGESGeom_BSplineSurface_HeaderFile
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#include <Standard.hxx>
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#include <Standard_Type.hxx>
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#include <Standard_Integer.hxx>
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#include <Standard_Boolean.hxx>
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#include <TColStd_HArray1OfReal.hxx>
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#include <TColStd_HArray2OfReal.hxx>
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#include <TColgp_HArray2OfXYZ.hxx>
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#include <Standard_Real.hxx>
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#include <IGESData_IGESEntity.hxx>
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class Standard_DimensionMismatch;
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class Standard_OutOfRange;
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class gp_Pnt;
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class IGESGeom_BSplineSurface;
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DEFINE_STANDARD_HANDLE(IGESGeom_BSplineSurface, IGESData_IGESEntity)
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//! defines IGESBSplineSurface, Type <128> Form <0-9>
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//! in package IGESGeom
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//! A parametric equation obtained by dividing two summations
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//! involving weights (which are real numbers), the control
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//! points, and B-Spline basis functions
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class IGESGeom_BSplineSurface : public IGESData_IGESEntity
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{
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public:
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Standard_EXPORT IGESGeom_BSplineSurface();
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//! This method is used to set the fields of the class
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//! BSplineSurface
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//! - anIndexU : Upper index of first sum
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//! - anIndexV : Upper index of second sum
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//! - aDegU, aDegV : Degrees of first and second sets
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//! of basis functions
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//! - aCloseU, aCloseV : 1 = Closed in U, V directions
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//! 0 = open in U, V directions
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//! - aPolynom : 0 = Rational, 1 = polynomial
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//! - aPeriodU, aPeriodV : 0 = Non periodic in U or V direction
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//! 1 = Periodic in U or V direction
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//! - allKnotsU, allKnotsV : Knots in U and V directions
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//! - allWeights : Array of weights
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//! - allPoles : XYZ coordinates of all control points
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//! - aUmin : Starting value of U direction
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//! - aUmax : Ending value of U direction
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//! - aVmin : Starting value of V direction
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//! - aVmax : Ending value of V direction
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//! raises exception if allWeights & allPoles are not of same size.
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Standard_EXPORT void Init (const Standard_Integer anIndexU, const Standard_Integer anIndexV, const Standard_Integer aDegU, const Standard_Integer aDegV, const Standard_Boolean aCloseU, const Standard_Boolean aCloseV, const Standard_Boolean aPolynom, const Standard_Boolean aPeriodU, const Standard_Boolean aPeriodV, const Handle(TColStd_HArray1OfReal)& allKnotsU, const Handle(TColStd_HArray1OfReal)& allKnotsV, const Handle(TColStd_HArray2OfReal)& allWeights, const Handle(TColgp_HArray2OfXYZ)& allPoles, const Standard_Real aUmin, const Standard_Real aUmax, const Standard_Real aVmin, const Standard_Real aVmax);
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//! Changes FormNumber (indicates the Shape of the Surface)
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//! Error if not in range [0-9]
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Standard_EXPORT void SetFormNumber (const Standard_Integer form);
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//! returns the upper index of the first sum (U)
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Standard_EXPORT Standard_Integer UpperIndexU() const;
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//! returns the upper index of the second sum (V)
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Standard_EXPORT Standard_Integer UpperIndexV() const;
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//! returns degree of first set of basis functions
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Standard_EXPORT Standard_Integer DegreeU() const;
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//! returns degree of second set of basis functions
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Standard_EXPORT Standard_Integer DegreeV() const;
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//! True if closed in U direction else False
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Standard_EXPORT Standard_Boolean IsClosedU() const;
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//! True if closed in V direction else False
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Standard_EXPORT Standard_Boolean IsClosedV() const;
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//! True if polynomial, False if rational
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//! <flag> False (D) : computed from Weights
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//! <flag> True : recorded
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Standard_EXPORT Standard_Boolean IsPolynomial (const Standard_Boolean flag = Standard_False) const;
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//! True if periodic in U direction else False
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Standard_EXPORT Standard_Boolean IsPeriodicU() const;
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//! True if periodic in V direction else False
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Standard_EXPORT Standard_Boolean IsPeriodicV() const;
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//! returns number of knots in U direction
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//! KnotsU are numbered from -DegreeU
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Standard_EXPORT Standard_Integer NbKnotsU() const;
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//! returns number of knots in V direction
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//! KnotsV are numbered from -DegreeV
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Standard_EXPORT Standard_Integer NbKnotsV() const;
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//! returns the value of knot referred to by anIndex in U direction
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//! raises exception if
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//! anIndex < -DegreeU() or anIndex > (NbKnotsU() - DegreeU())
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Standard_EXPORT Standard_Real KnotU (const Standard_Integer anIndex) const;
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//! returns the value of knot referred to by anIndex in V direction
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//! raises exception if
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//! anIndex < -DegreeV() or anIndex > (NbKnotsV() - DegreeV())
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Standard_EXPORT Standard_Real KnotV (const Standard_Integer anIndex) const;
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//! returns number of poles in U direction
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Standard_EXPORT Standard_Integer NbPolesU() const;
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//! returns number of poles in V direction
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Standard_EXPORT Standard_Integer NbPolesV() const;
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//! returns the weight referred to by anIndex1, anIndex2
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//! raises exception if anIndex1 <= 0 or anIndex1 > NbPolesU()
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//! or if anIndex2 <= 0 or anIndex2 > NbPolesV()
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Standard_EXPORT Standard_Real Weight (const Standard_Integer anIndex1, const Standard_Integer anIndex2) const;
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//! returns the control point referenced by anIndex1, anIndex2
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//! raises exception if anIndex1 <= 0 or anIndex1 > NbPolesU()
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//! or if anIndex2 <= 0 or anIndex2 > NbPolesV()
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Standard_EXPORT gp_Pnt Pole (const Standard_Integer anIndex1, const Standard_Integer anIndex2) const;
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//! returns the control point referenced by anIndex1, anIndex2
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//! after applying the Transf.Matrix
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//! raises exception if anIndex1 <= 0 or anIndex1 > NbPolesU()
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//! or if anIndex2 <= 0 or anIndex2 > NbPolesV()
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Standard_EXPORT gp_Pnt TransformedPole (const Standard_Integer anIndex1, const Standard_Integer anIndex2) const;
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//! returns starting value in the U direction
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Standard_EXPORT Standard_Real UMin() const;
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//! returns ending value in the U direction
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Standard_EXPORT Standard_Real UMax() const;
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//! returns starting value in the V direction
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Standard_EXPORT Standard_Real VMin() const;
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//! returns ending value in the V direction
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Standard_EXPORT Standard_Real VMax() const;
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DEFINE_STANDARD_RTTIEXT(IGESGeom_BSplineSurface,IGESData_IGESEntity)
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protected:
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private:
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Standard_Integer theIndexU;
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Standard_Integer theIndexV;
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Standard_Integer theDegreeU;
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Standard_Integer theDegreeV;
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Standard_Boolean isClosedU;
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Standard_Boolean isClosedV;
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Standard_Boolean isPolynomial;
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Standard_Boolean isPeriodicU;
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Standard_Boolean isPeriodicV;
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Handle(TColStd_HArray1OfReal) theKnotsU;
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Handle(TColStd_HArray1OfReal) theKnotsV;
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Handle(TColStd_HArray2OfReal) theWeights;
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Handle(TColgp_HArray2OfXYZ) thePoles;
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Standard_Real theUmin;
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Standard_Real theUmax;
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Standard_Real theVmin;
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Standard_Real theVmax;
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};
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#endif // _IGESGeom_BSplineSurface_HeaderFile
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