mirror of
https://git.dev.opencascade.org/repos/occt.git
synced 2025-04-04 18:06:22 +03:00
132 lines
6.7 KiB
C++
132 lines
6.7 KiB
C++
// Created on: 2015-09-21
|
|
// Copyright (c) 2015 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 _GeomEvaluator_OffsetSurface_HeaderFile
|
|
#define _GeomEvaluator_OffsetSurface_HeaderFile
|
|
|
|
#include <GeomEvaluator_Surface.hxx>
|
|
|
|
#include <Geom_OsculatingSurface.hxx>
|
|
#include <Geom_Surface.hxx>
|
|
|
|
class GeomAdaptor_HSurface;
|
|
|
|
//! Allows to calculate values and derivatives for offset surfaces
|
|
class GeomEvaluator_OffsetSurface : public GeomEvaluator_Surface
|
|
{
|
|
public:
|
|
//! Initialize evaluator by surface
|
|
Standard_EXPORT GeomEvaluator_OffsetSurface(
|
|
const Handle(Geom_Surface)& theBase,
|
|
const Standard_Real theOffset,
|
|
const Handle(Geom_OsculatingSurface)& theOscSurf = Handle(Geom_OsculatingSurface)());
|
|
//! Initialize evaluator by surface adaptor
|
|
Standard_EXPORT GeomEvaluator_OffsetSurface(
|
|
const Handle(GeomAdaptor_HSurface)& theBase,
|
|
const Standard_Real theOffset,
|
|
const Handle(Geom_OsculatingSurface)& theOscSurf = Handle(Geom_OsculatingSurface)());
|
|
|
|
//! Change the offset value
|
|
void SetOffsetValue(Standard_Real theOffset)
|
|
{ myOffset = theOffset; }
|
|
|
|
//! Value of surface
|
|
Standard_EXPORT void D0(const Standard_Real theU, const Standard_Real theV,
|
|
gp_Pnt& theValue) const Standard_OVERRIDE;
|
|
//! Value and first derivatives of surface
|
|
Standard_EXPORT void D1(const Standard_Real theU, const Standard_Real theV,
|
|
gp_Pnt& theValue, gp_Vec& theD1U, gp_Vec& theD1V) const Standard_OVERRIDE;
|
|
//! Value, first and second derivatives of surface
|
|
Standard_EXPORT void D2(const Standard_Real theU, const Standard_Real theV,
|
|
gp_Pnt& theValue, gp_Vec& theD1U, gp_Vec& theD1V,
|
|
gp_Vec& theD2U, gp_Vec& theD2V, gp_Vec& theD2UV) const Standard_OVERRIDE;
|
|
//! Value, first, second and third derivatives of surface
|
|
Standard_EXPORT void D3(const Standard_Real theU, const Standard_Real theV,
|
|
gp_Pnt& theValue, gp_Vec& theD1U, gp_Vec& theD1V,
|
|
gp_Vec& theD2U, gp_Vec& theD2V, gp_Vec& theD2UV,
|
|
gp_Vec& theD3U, gp_Vec& theD3V,
|
|
gp_Vec& theD3UUV, gp_Vec& theD3UVV) const Standard_OVERRIDE;
|
|
//! Calculates N-th derivatives of surface, where N = theDerU + theDerV.
|
|
//!
|
|
//! Raises if N < 1 or theDerU < 0 or theDerV < 0
|
|
Standard_EXPORT gp_Vec DN(const Standard_Real theU,
|
|
const Standard_Real theV,
|
|
const Standard_Integer theDerU,
|
|
const Standard_Integer theDerV) const Standard_OVERRIDE;
|
|
|
|
DEFINE_STANDARD_RTTIEXT(GeomEvaluator_OffsetSurface,GeomEvaluator_Surface)
|
|
|
|
private:
|
|
//! Returns bounds of a base surface
|
|
void Bounds(Standard_Real& theUMin, Standard_Real& theUMax,
|
|
Standard_Real& theVMin, Standard_Real& theVMax) const;
|
|
|
|
//! Recalculate D1 values of base surface into D0 value of offset surface
|
|
void CalculateD0(const Standard_Real theU, const Standard_Real theV,
|
|
gp_Pnt& theValue,
|
|
const gp_Vec& theD1U, const gp_Vec& theD1V) const;
|
|
//! Recalculate D2 values of base surface into D1 values of offset surface
|
|
void CalculateD1(const Standard_Real theU, const Standard_Real theV,
|
|
gp_Pnt& theValue, gp_Vec& theD1U, gp_Vec& theD1V,
|
|
const gp_Vec& theD2U, const gp_Vec& theD2V, const gp_Vec& theD2UV) const;
|
|
//! Recalculate D3 values of base surface into D2 values of offset surface
|
|
void CalculateD2(const Standard_Real theU, const Standard_Real theV,
|
|
gp_Pnt& theValue, gp_Vec& theD1U, gp_Vec& theD1V,
|
|
gp_Vec& theD2U, gp_Vec& theD2V, gp_Vec& theD2UV,
|
|
const gp_Vec& theD3U, const gp_Vec& theD3V,
|
|
const gp_Vec& theD3UUV, const gp_Vec& theD3UVV) const;
|
|
//! Recalculate D3 values of base surface into D3 values of offset surface
|
|
void CalculateD3(const Standard_Real theU, const Standard_Real theV,
|
|
gp_Pnt& theValue, gp_Vec& theD1U, gp_Vec& theD1V,
|
|
gp_Vec& theD2U, gp_Vec& theD2V, gp_Vec& theD2UV,
|
|
gp_Vec& theD3U, gp_Vec& theD3V, gp_Vec& theD3UUV, gp_Vec& theD3UVV) const;
|
|
//! Calculate DN of offset surface based on derivatives of base surface
|
|
gp_Vec CalculateDN(const Standard_Real theU, const Standard_Real theV,
|
|
const Standard_Integer theNu, const Standard_Integer theNv,
|
|
const gp_Vec& theD1U, const gp_Vec& theD1V) const;
|
|
|
|
//! Calculate value of base surface/adaptor
|
|
void BaseD0(const Standard_Real theU, const Standard_Real theV, gp_Pnt& theValue) const;
|
|
//! Calculate value and first derivatives of base surface/adaptor
|
|
void BaseD1(const Standard_Real theU, const Standard_Real theV,
|
|
gp_Pnt& theValue, gp_Vec& theD1U, gp_Vec& theD1V) const;
|
|
//! Calculate value, first and second derivatives of base surface/adaptor
|
|
void BaseD2(const Standard_Real theU, const Standard_Real theV,
|
|
gp_Pnt& theValue, gp_Vec& theD1U, gp_Vec& theD1V,
|
|
gp_Vec& theD2U, gp_Vec& theD2V, gp_Vec& theD2UV) const;
|
|
//! Calculate value, first, second and third derivatives of base surface/adaptor
|
|
void BaseD3(const Standard_Real theU, const Standard_Real theV,
|
|
gp_Pnt& theValue, gp_Vec& theD1U, gp_Vec& theD1V,
|
|
gp_Vec& theD2U, gp_Vec& theD2V, gp_Vec& theD2UV,
|
|
gp_Vec& theD3U, gp_Vec& theD3V, gp_Vec& theD3UUV, gp_Vec& theD3UVV) const;
|
|
|
|
//! Replace zero derivative by the corresponding derivative in a near point.
|
|
//! Return true, if the derivative was replaced.
|
|
Standard_Boolean ReplaceDerivative(const Standard_Real theU, const Standard_Real theV,
|
|
gp_Vec& theDU, gp_Vec& theDV,
|
|
const Standard_Real theSquareTol) const;
|
|
|
|
private:
|
|
Handle(Geom_Surface) myBaseSurf;
|
|
Handle(GeomAdaptor_HSurface) myBaseAdaptor;
|
|
|
|
Standard_Real myOffset; ///< offset value
|
|
Handle(Geom_OsculatingSurface) myOscSurf; ///< auxiliary osculating surface
|
|
};
|
|
|
|
DEFINE_STANDARD_HANDLE(GeomEvaluator_OffsetSurface, GeomEvaluator_Surface)
|
|
|
|
|
|
#endif // _GeomEvaluator_OffsetSurface_HeaderFile
|