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100 lines
4.3 KiB
C++
100 lines
4.3 KiB
C++
// Created on: 1993-03-17
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// Created by: Laurent BUCHARD
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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 _ApproxInt_SvSurfaces_HeaderFile
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#define _ApproxInt_SvSurfaces_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 <Standard_Boolean.hxx>
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#include <Standard_Real.hxx>
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class gp_Pnt;
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class gp_Vec;
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class gp_Vec2d;
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class IntSurf_PntOn2S;
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//! This class is root class for classes dedicated to calculate
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//! 2d and 3d points and tangents of intersection lines of two surfaces of different types
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//! for given u, v parameters of intersection point on two surfaces.
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//!
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//! The field myUseSolver is used to manage type of calculation:
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//! if myUseSolver = true, input parameters u1, v1, u2, v2 are considered as first approximation of
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//! exact intersection point, then coordinates u1, v1, u2, v2 are refined with help of
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//! the solver used in intersection algorithm and required values are calculated.
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//! if myUseSolver = false, u1, v1, u2, v2 are considered as "exact" intersection points on two surfaces
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//! and required values are calculated directly using u1, v1, u2, v2
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class ApproxInt_SvSurfaces
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{
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public:
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DEFINE_STANDARD_ALLOC
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ApproxInt_SvSurfaces() : myUseSolver (false) {}
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//! returns True if Tg,Tguv1 Tguv2 can be computed.
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Standard_EXPORT virtual Standard_Boolean Compute (Standard_Real& u1, Standard_Real& v1,
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Standard_Real& u2, Standard_Real& v2,
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gp_Pnt& Pt,
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gp_Vec& Tg,
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gp_Vec2d& Tguv1,
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gp_Vec2d& Tguv2) = 0;
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Standard_EXPORT virtual void Pnt (const Standard_Real u1, const Standard_Real v1,
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const Standard_Real u2, const Standard_Real v2,
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gp_Pnt& P) = 0;
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//! computes point on curve and parameters on the surfaces
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Standard_EXPORT virtual Standard_Boolean SeekPoint(const Standard_Real u1, const Standard_Real v1,
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const Standard_Real u2, const Standard_Real v2,
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IntSurf_PntOn2S& Point) = 0;
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Standard_EXPORT virtual Standard_Boolean Tangency (const Standard_Real u1, const Standard_Real v1,
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const Standard_Real u2, const Standard_Real v2,
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gp_Vec& Tg) = 0;
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Standard_EXPORT virtual Standard_Boolean TangencyOnSurf1 (const Standard_Real u1,
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const Standard_Real v1,
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const Standard_Real u2,
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const Standard_Real v2,
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gp_Vec2d& Tg) = 0;
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Standard_EXPORT virtual Standard_Boolean TangencyOnSurf2 (const Standard_Real u1,
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const Standard_Real v1,
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const Standard_Real u2,
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const Standard_Real v2,
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gp_Vec2d& Tg) = 0;
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Standard_EXPORT virtual ~ApproxInt_SvSurfaces();
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void SetUseSolver (const Standard_Boolean theUseSol)
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{
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myUseSolver = theUseSol;
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}
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virtual Standard_Boolean GetUseSolver() const
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{
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return myUseSolver;
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}
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private:
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Standard_Boolean myUseSolver;
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};
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#endif // _ApproxInt_SvSurfaces_HeaderFile
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