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_RstRstLineBuilder_HeaderFile
18 #define _BRepBlend_RstRstLineBuilder_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 <Blend_DecrochStatus.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_RstRstFunction;
36 class Blend_SurfCurvFuncInv;
37 class Blend_CurvPointFuncInv;
38 class Adaptor3d_HVertex;
39 class IntSurf_Transition;
40 class BRepBlend_Extremity;
44 //! This class processes the data resulting from
45 //! Blend_CSWalking but it takes in consideration the Surface
46 //! supporting the curve to detect the breakpoint.
48 //! As a result, the criteria of distribution of
49 //! points on the line become more flexible because it
50 //! should calculate values approached
51 //! by an approximation of continued functions based on the
52 //! Blend_RstRstFunction.
54 //! Thus this pseudo path necessitates 3 criteria of
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 of problem
62 //! surf/surf within the domain of the surface
63 //! of support of the restriction.
65 //! Construction of a BRepBlend_Line between two pcurves
66 //! from an approached starting solution. The output
67 //! entries of this builder are of the same nature
68 //! as of a traditional walking, but the requirements
69 //! to the Line are not the same. If the determination of validity range is always
70 //! guaranteed, the criteria of correct repartition of sections
71 //! before smoothing are not respected. The resulting Line
73 class BRepBlend_RstRstLineBuilder
80 Standard_EXPORT BRepBlend_RstRstLineBuilder(const Handle(Adaptor3d_HSurface)& Surf1, const Handle(Adaptor2d_HCurve2d)& Rst1, const Handle(Adaptor3d_TopolTool)& Domain1, const Handle(Adaptor3d_HSurface)& Surf2, const Handle(Adaptor2d_HCurve2d)& Rst2, const Handle(Adaptor3d_TopolTool)& Domain2);
82 Standard_EXPORT void Perform (Blend_RstRstFunction& Func, Blend_SurfCurvFuncInv& Finv1, Blend_CurvPointFuncInv& FinvP1, Blend_SurfCurvFuncInv& Finv2, Blend_CurvPointFuncInv& FinvP2, 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);
84 Standard_EXPORT Standard_Boolean PerformFirstSection (Blend_RstRstFunction& Func, Blend_SurfCurvFuncInv& Finv1, Blend_CurvPointFuncInv& FinvP1, Blend_SurfCurvFuncInv& Finv2, Blend_CurvPointFuncInv& FinvP2, const Standard_Real Pdep, const Standard_Real Pmax, const math_Vector& Soldep, const Standard_Real Tolesp, const Standard_Real TolGuide, const Standard_Boolean RecRst1, const Standard_Boolean RecP1, const Standard_Boolean RecRst2, const Standard_Boolean RecP2, Standard_Real& Psol, math_Vector& ParSol);
86 Standard_EXPORT Standard_Boolean Complete (Blend_RstRstFunction& Func, Blend_SurfCurvFuncInv& Finv1, Blend_CurvPointFuncInv& FinvP1, Blend_SurfCurvFuncInv& Finv2, Blend_CurvPointFuncInv& FinvP2, const Standard_Real Pmin);
88 Standard_Boolean IsDone() const;
90 const Handle(BRepBlend_Line)& Line() const;
92 Standard_Boolean Decroch1Start() const;
94 Standard_Boolean Decroch1End() const;
96 Standard_Boolean Decroch2Start() const;
98 Standard_Boolean Decroch2End() const;
112 Standard_EXPORT void InternalPerform (Blend_RstRstFunction& Func, Blend_SurfCurvFuncInv& Finv1, Blend_CurvPointFuncInv& FinvP1, Blend_SurfCurvFuncInv& Finv2, Blend_CurvPointFuncInv& FinvP2, const Standard_Real Bound);
114 Standard_EXPORT Standard_Boolean Recadre1 (Blend_RstRstFunction& Func, Blend_SurfCurvFuncInv& Finv, math_Vector& Solinv, Standard_Boolean& IsVtx, Handle(Adaptor3d_HVertex)& Vtx);
116 Standard_EXPORT Standard_Boolean Recadre2 (Blend_RstRstFunction& Func, Blend_SurfCurvFuncInv& Finv, math_Vector& Solinv, Standard_Boolean& IsVtx, Handle(Adaptor3d_HVertex)& Vtx);
118 Standard_EXPORT Standard_Boolean Recadre1 (Blend_CurvPointFuncInv& FinvP, math_Vector& Solinv, Standard_Boolean& IsVtx, Handle(Adaptor3d_HVertex)& Vtx);
120 Standard_EXPORT Standard_Boolean Recadre2 (Blend_CurvPointFuncInv& FinvP, math_Vector& Solinv, Standard_Boolean& IsVtx, Handle(Adaptor3d_HVertex)& Vtx);
122 Standard_EXPORT void Transition (const Standard_Boolean OnFirst, const Handle(Adaptor2d_HCurve2d)& Arc, const Standard_Real Param, IntSurf_Transition& TLine, IntSurf_Transition& TArc);
124 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);
126 Standard_EXPORT Blend_Status CheckDeflectionOnRst1 (const Blend_Point& CurPoint);
128 Standard_EXPORT Blend_Status CheckDeflectionOnRst2 (const Blend_Point& CurPoint);
130 Standard_EXPORT Blend_Status TestArret (Blend_RstRstFunction& Func, const Standard_Boolean TestDeflection, const Blend_Status State);
132 Standard_EXPORT Standard_Boolean CheckInside (Blend_RstRstFunction& Func, TopAbs_State& SituOnC1, TopAbs_State& SituOnC2, Blend_DecrochStatus& Decroch);
135 Standard_Boolean done;
136 Handle(BRepBlend_Line) line;
138 Handle(Adaptor3d_HSurface) surf1;
139 Handle(Adaptor3d_TopolTool) domain1;
140 Handle(Adaptor3d_HSurface) surf2;
141 Handle(Adaptor3d_TopolTool) domain2;
142 Handle(Adaptor2d_HCurve2d) rst1;
143 Handle(Adaptor2d_HCurve2d) rst2;
144 Standard_Real tolesp;
145 Standard_Real tolgui;
146 Standard_Real pasmax;
147 Standard_Real fleche;
149 Blend_Point previousP;
150 Standard_Boolean rebrou;
151 Standard_Boolean iscomplete;
152 Standard_Boolean comptra;
154 Blend_DecrochStatus decrochdeb;
155 Blend_DecrochStatus decrochfin;
161 #include <BRepBlend_RstRstLineBuilder.lxx>
167 #endif // _BRepBlend_RstRstLineBuilder_HeaderFile