// Created on: 1997-05-05 // Created by: Joelle CHAUVET // Copyright (c) 1997-1999 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 _GeomPlate_CurveConstraint_HeaderFile #define _GeomPlate_CurveConstraint_HeaderFile #include #include class Geom2d_Curve; class Law_Function; class gp_Pnt; class gp_Vec; class GeomPlate_CurveConstraint; DEFINE_STANDARD_HANDLE(GeomPlate_CurveConstraint, Standard_Transient) //! Defines curves as constraints to be used to deform a surface. class GeomPlate_CurveConstraint : public Standard_Transient { public: //! Initializes an empty curve constraint object. Standard_EXPORT GeomPlate_CurveConstraint(); //! Create a constraint //! Order is the order of the constraint. The possible values for order are -1,0,1,2. //! Order i means constraints Gi //! Npt is the number of points associated with the constraint. //! TolDist is the maximum error to satisfy for G0 constraints //! TolAng is the maximum error to satisfy for G1 constraints //! TolCurv is the maximum error to satisfy for G2 constraints //! These errors can be replaced by laws of criterion. //! Raises ConstructionError if Order is not -1 , 0, 1, 2 Standard_EXPORT GeomPlate_CurveConstraint(const Handle(Adaptor3d_Curve)& Boundary, const Standard_Integer Order, const Standard_Integer NPt = 10, const Standard_Real TolDist = 0.0001, const Standard_Real TolAng = 0.01, const Standard_Real TolCurv = 0.1); //! Allows you to set the order of continuity required for //! the constraints: G0, G1, and G2, controlled //! respectively by G0Criterion G1Criterion and G2Criterion. Standard_EXPORT void SetOrder (const Standard_Integer Order); //! Returns the order of constraint, one of G0, G1 or G2. Standard_EXPORT Standard_Integer Order() const; //! Returns the number of points on the curve used as a //! constraint. The default setting is 10. This parameter //! affects computation time, which increases by the cube of //! the number of points. Standard_EXPORT Standard_Integer NbPoints() const; //! Allows you to set the number of points on the curve //! constraint. The default setting is 10. This parameter //! affects computation time, which increases by the cube of //! the number of points. Standard_EXPORT void SetNbPoints (const Standard_Integer NewNb); //! Allows you to set the G0 criterion. This is the law //! defining the greatest distance allowed between the //! constraint and the target surface for each point of the //! constraint. If this criterion is not set, TolDist, the //! distance tolerance from the constructor, is used. Standard_EXPORT void SetG0Criterion (const Handle(Law_Function)& G0Crit); //! Allows you to set the G1 criterion. This is the law //! defining the greatest angle allowed between the //! constraint and the target surface. If this criterion is not //! set, TolAng, the angular tolerance from the constructor, is used. //! Raises ConstructionError if the curve is not on a surface Standard_EXPORT void SetG1Criterion (const Handle(Law_Function)& G1Crit); Standard_EXPORT void SetG2Criterion (const Handle(Law_Function)& G2Crit); //! Returns the G0 criterion at the parametric point U on //! the curve. This is the greatest distance allowed between //! the constraint and the target surface at U. Standard_EXPORT Standard_Real G0Criterion (const Standard_Real U) const; //! Returns the G1 criterion at the parametric point U on //! the curve. This is the greatest angle allowed between //! the constraint and the target surface at U. //! Raises ConstructionError if the curve is not on a surface Standard_EXPORT Standard_Real G1Criterion (const Standard_Real U) const; //! Returns the G2 criterion at the parametric point U on //! the curve. This is the greatest difference in curvature //! allowed between the constraint and the target surface at U. //! Raises ConstructionError if the curve is not on a surface Standard_EXPORT Standard_Real G2Criterion (const Standard_Real U) const; Standard_EXPORT Standard_Real FirstParameter() const; Standard_EXPORT Standard_Real LastParameter() const; Standard_EXPORT Standard_Real Length() const; Standard_EXPORT GeomLProp_SLProps& LPropSurf (const Standard_Real U); Standard_EXPORT void D0 (const Standard_Real U, gp_Pnt& P) const; Standard_EXPORT void D1 (const Standard_Real U, gp_Pnt& P, gp_Vec& V1, gp_Vec& V2) const; Standard_EXPORT void D2 (const Standard_Real U, gp_Pnt& P, gp_Vec& V1, gp_Vec& V2, gp_Vec& V3, gp_Vec& V4, gp_Vec& V5) const; Standard_EXPORT Handle(Adaptor3d_Curve) Curve3d() const; //! loads a 2d curve associated the surface resulting of the constraints Standard_EXPORT void SetCurve2dOnSurf (const Handle(Geom2d_Curve)& Curve2d); //! Returns a 2d curve associated the surface resulting of the constraints Standard_EXPORT Handle(Geom2d_Curve) Curve2dOnSurf() const; //! loads a 2d curve resulting from the normal projection of //! the curve on the initial surface Standard_EXPORT void SetProjectedCurve (const Handle(Adaptor2d_Curve2d)& Curve2d, const Standard_Real TolU, const Standard_Real TolV); //! Returns the projected curve resulting from the normal projection of the //! curve on the initial surface Standard_EXPORT Handle(Adaptor2d_Curve2d) ProjectedCurve() const; DEFINE_STANDARD_RTTIEXT(GeomPlate_CurveConstraint,Standard_Transient) protected: Handle(Adaptor3d_CurveOnSurface) myFrontiere; Standard_Integer myNbPoints; Standard_Integer myOrder; Handle(Adaptor3d_Curve) my3dCurve; Standard_Integer myTang; Handle(Geom2d_Curve) my2dCurve; Handle(Adaptor2d_Curve2d) myHCurve2d; Handle(Law_Function) myG0Crit; Handle(Law_Function) myG1Crit; Handle(Law_Function) myG2Crit; Standard_Boolean myConstG0; Standard_Boolean myConstG1; Standard_Boolean myConstG2; GeomLProp_SLProps myLProp; Standard_Real myTolDist; Standard_Real myTolAng; Standard_Real myTolCurv; Standard_Real myTolU; Standard_Real myTolV; }; #endif // _GeomPlate_CurveConstraint_HeaderFile