1 // Created on: 1997-01-23
2 // Created by: Laurent BOURESCHE
3 // Copyright (c) 1997-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
6 // This file is part of Open CASCADE Technology software library.
8 // This library is free software; you can redistribute it and/or modify it under
9 // the terms of the GNU Lesser General Public License version 2.1 as published
10 // by the Free Software Foundation, with special exception defined in the file
11 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
12 // distribution for complete text of the license and disclaimer of any warranty.
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
17 #ifndef _BRepBlend_SurfRstLineBuilder_HeaderFile
18 #define _BRepBlend_SurfRstLineBuilder_HeaderFile
20 #include <Standard.hxx>
21 #include <Standard_DefineAlloc.hxx>
22 #include <Standard_Handle.hxx>
24 #include <Standard_Boolean.hxx>
25 #include <math_Vector.hxx>
26 #include <Standard_Real.hxx>
27 #include <Blend_Point.hxx>
28 #include <Standard_Integer.hxx>
29 #include <Blend_Status.hxx>
30 #include <TopAbs_State.hxx>
32 class Adaptor3d_HSurface;
33 class Adaptor3d_TopolTool;
34 class Adaptor2d_HCurve2d;
35 class Blend_SurfRstFunction;
37 class Blend_SurfPointFuncInv;
38 class Blend_SurfCurvFuncInv;
40 class Adaptor3d_HVertex;
41 class IntSurf_Transition;
42 class BRepBlend_Extremity;
46 //! This class processes data resulting from
47 //! Blend_CSWalking taking in consideration the Surface
48 //! supporting the curve to detect the breakpoint.
50 //! The criteria of distribution of points on the line are detailed
51 //! because it is to be used in the calculatuon of values approached
52 //! by an approximation of functions continued basing on
53 //! Blend_SurfRstFunction.
55 //! Thus this pseudo path necessitates 3 criteria of regrouping :
57 //! 1) exit of the domain of the curve
59 //! 2) exit of the domain of the surface
61 //! 3) stall as there is a solution to the problem
62 //! surf/surf within the domain of the surface
63 //! of support of the restriction.
65 //! Construction of a BRepBlend_Line between a surface and
66 //! a pcurve on surface from an approached
67 //! starting solution. The output entries of this builder
68 //! are of the same nature as of the traditional walking
69 //! but the requirements on the Line are not the same
70 //! If the determination of validity range is always
71 //! guaranteed, the criteria of correct repartition of sections
72 //! before smoothing are not respected. The resulting Line
74 class BRepBlend_SurfRstLineBuilder
81 Standard_EXPORT BRepBlend_SurfRstLineBuilder(const Handle(Adaptor3d_HSurface)& Surf1, const Handle(Adaptor3d_TopolTool)& Domain1, const Handle(Adaptor3d_HSurface)& Surf2, const Handle(Adaptor2d_HCurve2d)& Rst, const Handle(Adaptor3d_TopolTool)& Domain2);
83 Standard_EXPORT void Perform (Blend_SurfRstFunction& Func, Blend_FuncInv& Finv, Blend_SurfPointFuncInv& FinvP, Blend_SurfCurvFuncInv& FinvC, const Standard_Real Pdep, const Standard_Real Pmax, const Standard_Real MaxStep, const Standard_Real TolGuide, const math_Vector& Soldep, const Standard_Real Tolesp, const Standard_Real Fleche, const Standard_Boolean Appro = Standard_False);
85 Standard_EXPORT Standard_Boolean PerformFirstSection (Blend_SurfRstFunction& Func, Blend_FuncInv& Finv, Blend_SurfPointFuncInv& FinvP, Blend_SurfCurvFuncInv& FinvC, const Standard_Real Pdep, const Standard_Real Pmax, const math_Vector& Soldep, const Standard_Real Tolesp, const Standard_Real TolGuide, const Standard_Boolean RecRst, const Standard_Boolean RecP, const Standard_Boolean RecS, Standard_Real& Psol, math_Vector& ParSol);
87 Standard_EXPORT Standard_Boolean Complete (Blend_SurfRstFunction& Func, Blend_FuncInv& Finv, Blend_SurfPointFuncInv& FinvP, Blend_SurfCurvFuncInv& FinvC, const Standard_Real Pmin);
89 Standard_EXPORT Standard_Integer ArcToRecadre (const math_Vector& Sol, const Standard_Integer PrevIndex, gp_Pnt2d& pt2d, gp_Pnt2d& lastpt2d, Standard_Real& ponarc);
91 Standard_Boolean IsDone() const;
93 const Handle(BRepBlend_Line)& Line() const;
95 Standard_Boolean DecrochStart() const;
97 Standard_Boolean DecrochEnd() const;
111 Standard_EXPORT void InternalPerform (Blend_SurfRstFunction& Func, Blend_FuncInv& Finv, Blend_SurfPointFuncInv& FinvP, Blend_SurfCurvFuncInv& FinvC, const Standard_Real Bound);
113 Standard_EXPORT Standard_Boolean Recadre (Blend_SurfCurvFuncInv& FinvC, math_Vector& Solinv, Handle(Adaptor2d_HCurve2d)& Arc, Standard_Boolean& IsVtx, Handle(Adaptor3d_HVertex)& Vtx);
115 Standard_EXPORT Standard_Boolean Recadre (Blend_SurfRstFunction& Func, Blend_FuncInv& Finv, math_Vector& Solinv, Standard_Boolean& IsVtx, Handle(Adaptor3d_HVertex)& Vtx);
117 Standard_EXPORT Standard_Boolean Recadre (Blend_SurfPointFuncInv& FinvP, math_Vector& Solinv, Standard_Boolean& IsVtx, Handle(Adaptor3d_HVertex)& Vtx);
119 Standard_EXPORT void Transition (const Standard_Boolean OnFirst, const Handle(Adaptor2d_HCurve2d)& Arc, const Standard_Real Param, IntSurf_Transition& TLine, IntSurf_Transition& TArc);
121 Standard_EXPORT void MakeExtremity (BRepBlend_Extremity& Extrem, const Standard_Boolean OnFirst, const Handle(Adaptor2d_HCurve2d)& Arc, const Standard_Real Param, const Standard_Boolean IsVtx, const Handle(Adaptor3d_HVertex)& Vtx);
123 Standard_EXPORT Blend_Status CheckDeflectionOnSurf (const Blend_Point& CurPoint);
125 Standard_EXPORT Blend_Status CheckDeflectionOnRst (const Blend_Point& CurPoint);
127 Standard_EXPORT Blend_Status TestArret (Blend_SurfRstFunction& Func, const Standard_Boolean TestDeflection, const Blend_Status State);
129 Standard_EXPORT Standard_Boolean CheckInside (Blend_SurfRstFunction& Func, TopAbs_State& SituOnC, TopAbs_State& SituOnS, Standard_Boolean& Decroch);
132 Standard_Boolean done;
133 Handle(BRepBlend_Line) line;
135 Handle(Adaptor3d_HSurface) surf1;
136 Handle(Adaptor3d_TopolTool) domain1;
137 Handle(Adaptor3d_HSurface) surf2;
138 Handle(Adaptor2d_HCurve2d) rst;
139 Handle(Adaptor3d_TopolTool) domain2;
140 Standard_Real tolesp;
141 Standard_Real tolgui;
142 Standard_Real pasmax;
143 Standard_Real fleche;
145 Blend_Point previousP;
146 Standard_Boolean rebrou;
147 Standard_Boolean iscomplete;
148 Standard_Boolean comptra;
150 Standard_Boolean decrochdeb;
151 Standard_Boolean decrochfin;
157 #include <BRepBlend_SurfRstLineBuilder.lxx>
163 #endif // _BRepBlend_SurfRstLineBuilder_HeaderFile