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156 lines
5.4 KiB
C++
156 lines
5.4 KiB
C++
// Created on: 1992-06-30
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// Created by: Laurent BUCHARD
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// Copyright (c) 1992-1999 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 _IntAna_Curve_HeaderFile
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#define _IntAna_Curve_HeaderFile
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#include <Standard.hxx>
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#include <Standard_DefineAlloc.hxx>
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#include <GeomAbs_SurfaceType.hxx>
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#include <gp_Ax3.hxx>
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#include <TColStd_ListOfReal.hxx>
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class gp_Cone;
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class gp_Cylinder;
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//! Definition of a parametric Curve which is the result
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//! of the intersection between two quadrics.
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class IntAna_Curve
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{
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public:
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DEFINE_STANDARD_ALLOC
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//! Empty Constructor
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Standard_EXPORT IntAna_Curve();
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//! Sets the parameters used to compute Points and Derivative
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//! on the curve.
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Standard_EXPORT void SetCylinderQuadValues (const gp_Cylinder& Cylinder, const Standard_Real Qxx, const Standard_Real Qyy, const Standard_Real Qzz, const Standard_Real Qxy, const Standard_Real Qxz, const Standard_Real Qyz, const Standard_Real Qx, const Standard_Real Qy, const Standard_Real Qz, const Standard_Real Q1, const Standard_Real Tol, const Standard_Real DomInf, const Standard_Real DomSup, const Standard_Boolean TwoZForATheta, const Standard_Boolean ZIsPositive);
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//! Sets the parameters used to compute Points and
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//! Derivative on the curve.
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Standard_EXPORT void SetConeQuadValues (const gp_Cone& Cone, const Standard_Real Qxx, const Standard_Real Qyy, const Standard_Real Qzz, const Standard_Real Qxy, const Standard_Real Qxz, const Standard_Real Qyz, const Standard_Real Qx, const Standard_Real Qy, const Standard_Real Qz, const Standard_Real Q1, const Standard_Real Tol, const Standard_Real DomInf, const Standard_Real DomSup, const Standard_Boolean TwoZForATheta, const Standard_Boolean ZIsPositive);
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//! Returns TRUE if the curve is not infinite at the
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//! last parameter or at the first parameter of the domain.
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Standard_EXPORT Standard_Boolean IsOpen() const;
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//! Returns the parametric domain of the curve.
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Standard_EXPORT void Domain(Standard_Real& theFirst, Standard_Real& theLast) const;
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//! Returns TRUE if the function is constant.
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Standard_EXPORT Standard_Boolean IsConstant() const;
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//! Returns TRUE if the domain is open at the beginning.
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Standard_EXPORT Standard_Boolean IsFirstOpen() const;
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//! Returns TRUE if the domain is open at the end.
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Standard_EXPORT Standard_Boolean IsLastOpen() const;
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//! Returns the point at parameter Theta on the curve.
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Standard_EXPORT gp_Pnt Value (const Standard_Real Theta);
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//! Returns the point and the first derivative at parameter
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//! Theta on the curve.
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Standard_EXPORT Standard_Boolean D1u (const Standard_Real Theta, gp_Pnt& P, gp_Vec& V);
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//! Tries to find the parameter of the point P on the curve.
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//! If the method returns False, the "projection" is
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//! impossible.
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//! If the method returns True at least one parameter has been found.
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//! theParams is always sorted in ascending order.
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Standard_EXPORT void FindParameter(const gp_Pnt& P,
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TColStd_ListOfReal& theParams) const;
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//! If flag is True, the Curve is not defined at the
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//! first parameter of its domain.
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Standard_EXPORT void SetIsFirstOpen (const Standard_Boolean Flag);
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//! If flag is True, the Curve is not defined at the
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//! first parameter of its domain.
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Standard_EXPORT void SetIsLastOpen (const Standard_Boolean Flag);
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//! Trims this curve
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Standard_EXPORT void SetDomain(const Standard_Real theFirst, const Standard_Real theLast);
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protected:
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//! Protected function.
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Standard_EXPORT gp_Pnt InternalValue (const Standard_Real Theta1, const Standard_Real Theta2) const;
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//! Protected function.
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Standard_EXPORT void InternalUVValue (const Standard_Real Param, Standard_Real& U, Standard_Real& V, Standard_Real& A, Standard_Real& B, Standard_Real& C, Standard_Real& Co, Standard_Real& Si, Standard_Real& Di) const;
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private:
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Standard_Real Z0Cte;
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Standard_Real Z0Sin;
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Standard_Real Z0Cos;
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Standard_Real Z0SinSin;
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Standard_Real Z0CosCos;
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Standard_Real Z0CosSin;
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Standard_Real Z1Cte;
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Standard_Real Z1Sin;
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Standard_Real Z1Cos;
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Standard_Real Z1SinSin;
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Standard_Real Z1CosCos;
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Standard_Real Z1CosSin;
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Standard_Real Z2Cte;
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Standard_Real Z2Sin;
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Standard_Real Z2Cos;
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Standard_Real Z2SinSin;
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Standard_Real Z2CosCos;
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Standard_Real Z2CosSin;
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Standard_Boolean TwoCurves;
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Standard_Boolean TakeZPositive;
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Standard_Real Tolerance;
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//! Internal fields defining the default domain
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Standard_Real DomainInf, DomainSup;
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Standard_Boolean RestrictedInf;
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Standard_Boolean RestrictedSup;
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Standard_Boolean firstbounded;
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Standard_Boolean lastbounded;
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GeomAbs_SurfaceType typequadric;
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Standard_Real RCyl;
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Standard_Real Angle;
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gp_Ax3 Ax3;
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//! Trim boundaries
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Standard_Real myFirstParameter, myLastParameter;
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};
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#endif // _IntAna_Curve_HeaderFile
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