1 // Created on: 1991-03-29
2 // Created by: Remi GILET
3 // Copyright (c) 1991-1999 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 _Geom2dGcc_Circ2d2TanRadGeo_HeaderFile
18 #define _Geom2dGcc_Circ2d2TanRadGeo_HeaderFile
20 #include <Standard.hxx>
21 #include <Standard_DefineAlloc.hxx>
22 #include <Standard_Handle.hxx>
24 #include <Standard_Boolean.hxx>
25 #include <Standard_Integer.hxx>
26 #include <TColgp_Array1OfCirc2d.hxx>
27 #include <GccEnt_Array1OfPosition.hxx>
28 #include <TColStd_Array1OfInteger.hxx>
29 #include <TColgp_Array1OfPnt2d.hxx>
30 #include <TColStd_Array1OfReal.hxx>
31 #include <Standard_Real.hxx>
32 #include <GccEnt_Position.hxx>
33 class Standard_OutOfRange;
34 class GccEnt_BadQualifier;
35 class StdFail_NotDone;
36 class Standard_NegativeValue;
37 class GccEnt_QualifiedCirc;
38 class Geom2dGcc_QCurve;
39 class GccEnt_QualifiedLin;
44 //! This class implements the algorithms used to
45 //! create 2d circles tangent to one curve and a
46 //! point/line/circle/curv and with a given radius.
47 //! For each construction methods arguments are:
48 //! - Two Qualified elements for tangency constrains.
49 //! (for example EnclosedCirc if we want the
50 //! solution inside the argument EnclosedCirc).
51 //! - Two Reals. One (Radius) for the radius and the
52 //! other (Tolerance) for the tolerance.
53 //! Tolerance is only used for the limit cases.
55 //! We want to create a circle inside a circle C1 and
56 //! inside a curve Cu2 with a radius Radius and a
57 //! tolerance Tolerance.
58 //! If we did not used Tolerance it is impossible to
59 //! find a solution in the following case : Cu2 is
60 //! inside C1 and there is no intersection point
61 //! between the two elements.
62 //! With Tolerance we will get a solution if the
63 //! lowest distance between C1 and Cu2 is lower than or
65 class Geom2dGcc_Circ2d2TanRadGeo
72 //! This method implements the algorithms used to
73 //! create 2d circles TANgent to a 2d circle and a curve
74 //! with a radius of Radius.
75 //! It raises NegativeValue if Radius is lower than zero.
76 Standard_EXPORT Geom2dGcc_Circ2d2TanRadGeo(const GccEnt_QualifiedCirc& Qualified1, const Geom2dGcc_QCurve& Qualified2, const Standard_Real Radius, const Standard_Real Tolerance);
78 //! This method implements the algorithms used to
79 //! create 2d circles TANgent to a 2d line and a curve
80 //! with a radius of Radius.
81 //! It raises NegativeValue if Radius is lower than zero.
82 Standard_EXPORT Geom2dGcc_Circ2d2TanRadGeo(const GccEnt_QualifiedLin& Qualified1, const Geom2dGcc_QCurve& Qualified2, const Standard_Real Radius, const Standard_Real Tolerance);
84 //! This method implements the algorithms used to
85 //! create 2d circles TANgent to two curves with
86 //! a radius of Radius.
87 //! It raises NegativeValue if Radius is lower than zero.
88 Standard_EXPORT Geom2dGcc_Circ2d2TanRadGeo(const Geom2dGcc_QCurve& Qualified1, const Geom2dGcc_QCurve& Qualified2, const Standard_Real Radius, const Standard_Real Tolerance);
90 //! This method implements the algorithms used to
91 //! create 2d circles TANgent to a curve and a point
92 //! with a radius of Radius.
93 //! It raises NegativeValue if Radius is lower than zero.
94 Standard_EXPORT Geom2dGcc_Circ2d2TanRadGeo(const Geom2dGcc_QCurve& Qualified1, const gp_Pnt2d& Point2, const Standard_Real Radius, const Standard_Real Tolerance);
96 //! This method returns True if the algorithm succeeded.
97 Standard_EXPORT Standard_Boolean IsDone() const;
99 //! This method returns the number of solutions.
100 //! It raises NotDone if the algorithm failed.
101 Standard_EXPORT Standard_Integer NbSolutions() const;
103 //! Returns the solution number Index.
104 //! Be careful: the Index is only a way to get all the
105 //! solutions, but is not associated to those outside the context
106 //! of the algorithm-object.
107 //! It raises OutOfRange exception if Index is greater
108 //! than the number of solutions.
109 //! It raises NotDone if the construction algorithm did not
111 Standard_EXPORT gp_Circ2d ThisSolution (const Standard_Integer Index) const;
113 //! It returns the information about the qualifiers of
114 //! the tangency arguments concerning the solution number Index.
115 //! It returns the real qualifiers (the qualifiers given to the
116 //! constructor method in case of enclosed, enclosing and outside
117 //! and the qualifiers computedin case of unqualified).
118 Standard_EXPORT void WhichQualifier (const Standard_Integer Index, GccEnt_Position& Qualif1, GccEnt_Position& Qualif2) const;
120 //! Returns information about the tangency point between the
121 //! result number Index and the first argument.
122 //! ParSol is the intrinsic parameter of the point PntSol on the solution.
123 //! ParArg is the intrinsic parameter of the point PntSol on the first
125 //! It raises OutOfRange if Index is greater than the number
127 //! It raises NotDone if the construction algorithm did not
129 Standard_EXPORT void Tangency1 (const Standard_Integer Index, Standard_Real& ParSol, Standard_Real& ParArg, gp_Pnt2d& PntSol) const;
131 //! Returns information about the tangency point between the
132 //! result number Index and the second argument.
133 //! ParSol is the intrinsic parameter of the point PntSol on
135 //! ParArg is the intrinsic parameter of the point PntArg on
136 //! the second argument.
137 //! It raises OutOfRange if Index is greater than the number
139 //! It raises NotDone if the construction algorithm did not
141 Standard_EXPORT void Tangency2 (const Standard_Integer Index, Standard_Real& ParSol, Standard_Real& ParArg, gp_Pnt2d& PntSol) const;
143 //! Returns True if the solution number Index is equal to
144 //! the first argument.
145 //! It raises OutOfRange if Index is greater than the number
147 //! It raises NotDone if the construction algorithm did not
149 Standard_EXPORT Standard_Boolean IsTheSame1 (const Standard_Integer Index) const;
151 //! Returns True if the solution number Index is equal to
152 //! the second argument.
153 //! It raises OutOfRange if Index is greater than the number
155 //! It raises NotDone if the construction algorithm did not
157 Standard_EXPORT Standard_Boolean IsTheSame2 (const Standard_Integer Index) const;
172 Standard_Boolean WellDone;
173 Standard_Integer NbrSol;
174 TColgp_Array1OfCirc2d cirsol;
175 GccEnt_Array1OfPosition qualifier1;
176 GccEnt_Array1OfPosition qualifier2;
177 TColStd_Array1OfInteger TheSame1;
178 TColStd_Array1OfInteger TheSame2;
179 TColgp_Array1OfPnt2d pnttg1sol;
180 TColgp_Array1OfPnt2d pnttg2sol;
181 TColStd_Array1OfReal par1sol;
182 TColStd_Array1OfReal par2sol;
183 TColStd_Array1OfReal pararg1;
184 TColStd_Array1OfReal pararg2;
195 #endif // _Geom2dGcc_Circ2d2TanRadGeo_HeaderFile