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>
23 #include <Standard_Integer.hxx>
24 #include <TColgp_Array1OfCirc2d.hxx>
25 #include <GccEnt_Array1OfPosition.hxx>
26 #include <TColStd_Array1OfInteger.hxx>
27 #include <TColgp_Array1OfPnt2d.hxx>
28 #include <TColStd_Array1OfReal.hxx>
29 #include <GccEnt_Position.hxx>
30 class GccEnt_QualifiedCirc;
31 class Geom2dGcc_QCurve;
32 class GccEnt_QualifiedLin;
37 //! This class implements the algorithms used to
38 //! create 2d circles tangent to one curve and a
39 //! point/line/circle/curv and with a given radius.
40 //! For each construction methods arguments are:
41 //! - Two Qualified elements for tangency constrains.
42 //! (for example EnclosedCirc if we want the
43 //! solution inside the argument EnclosedCirc).
44 //! - Two Reals. One (Radius) for the radius and the
45 //! other (Tolerance) for the tolerance.
46 //! Tolerance is only used for the limit cases.
48 //! We want to create a circle inside a circle C1 and
49 //! inside a curve Cu2 with a radius Radius and a
50 //! tolerance Tolerance.
51 //! If we did not used Tolerance it is impossible to
52 //! find a solution in the following case : Cu2 is
53 //! inside C1 and there is no intersection point
54 //! between the two elements.
55 //! With Tolerance we will get a solution if the
56 //! lowest distance between C1 and Cu2 is lower than or
58 class Geom2dGcc_Circ2d2TanRadGeo
65 //! This method implements the algorithms used to
66 //! create 2d circles TANgent to a 2d circle and a curve
67 //! with a radius of Radius.
68 //! It raises NegativeValue if Radius is lower than zero.
69 Standard_EXPORT Geom2dGcc_Circ2d2TanRadGeo(const GccEnt_QualifiedCirc& Qualified1, const Geom2dGcc_QCurve& Qualified2, const Standard_Real Radius, const Standard_Real Tolerance);
71 //! This method implements the algorithms used to
72 //! create 2d circles TANgent to a 2d line and a curve
73 //! with a radius of Radius.
74 //! It raises NegativeValue if Radius is lower than zero.
75 Standard_EXPORT Geom2dGcc_Circ2d2TanRadGeo(const GccEnt_QualifiedLin& Qualified1, const Geom2dGcc_QCurve& Qualified2, const Standard_Real Radius, const Standard_Real Tolerance);
77 //! This method implements the algorithms used to
78 //! create 2d circles TANgent to two curves with
79 //! a radius of Radius.
80 //! It raises NegativeValue if Radius is lower than zero.
81 Standard_EXPORT Geom2dGcc_Circ2d2TanRadGeo(const Geom2dGcc_QCurve& Qualified1, const Geom2dGcc_QCurve& Qualified2, const Standard_Real Radius, const Standard_Real Tolerance);
83 //! This method implements the algorithms used to
84 //! create 2d circles TANgent to a curve and a point
85 //! with a radius of Radius.
86 //! It raises NegativeValue if Radius is lower than zero.
87 Standard_EXPORT Geom2dGcc_Circ2d2TanRadGeo(const Geom2dGcc_QCurve& Qualified1, const gp_Pnt2d& Point2, const Standard_Real Radius, const Standard_Real Tolerance);
89 //! This method returns True if the algorithm succeeded.
90 Standard_EXPORT Standard_Boolean IsDone() const;
92 //! This method returns the number of solutions.
93 //! It raises NotDone if the algorithm failed.
94 Standard_EXPORT Standard_Integer NbSolutions() const;
96 //! Returns the solution number Index.
97 //! Be careful: the Index is only a way to get all the
98 //! solutions, but is not associated to those outside the context
99 //! of the algorithm-object.
100 //! It raises OutOfRange exception if Index is greater
101 //! than the number of solutions.
102 //! It raises NotDone if the construction algorithm did not
104 Standard_EXPORT gp_Circ2d ThisSolution (const Standard_Integer Index) const;
106 //! It returns the information about the qualifiers of
107 //! the tangency arguments concerning the solution number Index.
108 //! It returns the real qualifiers (the qualifiers given to the
109 //! constructor method in case of enclosed, enclosing and outside
110 //! and the qualifiers computedin case of unqualified).
111 Standard_EXPORT void WhichQualifier (const Standard_Integer Index, GccEnt_Position& Qualif1, GccEnt_Position& Qualif2) const;
113 //! Returns information about the tangency point between the
114 //! result number Index and the first argument.
115 //! ParSol is the intrinsic parameter of the point PntSol on the solution.
116 //! ParArg is the intrinsic parameter of the point PntSol on the first
118 //! It raises OutOfRange if Index is greater than the number
120 //! It raises NotDone if the construction algorithm did not
122 Standard_EXPORT void Tangency1 (const Standard_Integer Index, Standard_Real& ParSol, Standard_Real& ParArg, gp_Pnt2d& PntSol) const;
124 //! Returns information about the tangency point between the
125 //! result number Index and the second argument.
126 //! ParSol is the intrinsic parameter of the point PntSol on
128 //! ParArg is the intrinsic parameter of the point PntArg on
129 //! the second argument.
130 //! It raises OutOfRange if Index is greater than the number
132 //! It raises NotDone if the construction algorithm did not
134 Standard_EXPORT void Tangency2 (const Standard_Integer Index, Standard_Real& ParSol, Standard_Real& ParArg, gp_Pnt2d& PntSol) const;
136 //! Returns True if the solution number Index is equal to
137 //! the first argument.
138 //! It raises OutOfRange if Index is greater than the number
140 //! It raises NotDone if the construction algorithm did not
142 Standard_EXPORT Standard_Boolean IsTheSame1 (const Standard_Integer Index) const;
144 //! Returns True if the solution number Index is equal to
145 //! the second argument.
146 //! It raises OutOfRange if Index is greater than the number
148 //! It raises NotDone if the construction algorithm did not
150 Standard_EXPORT Standard_Boolean IsTheSame2 (const Standard_Integer Index) const;
165 Standard_Boolean WellDone;
166 Standard_Integer NbrSol;
167 TColgp_Array1OfCirc2d cirsol;
168 GccEnt_Array1OfPosition qualifier1;
169 GccEnt_Array1OfPosition qualifier2;
170 TColStd_Array1OfInteger TheSame1;
171 TColStd_Array1OfInteger TheSame2;
172 TColgp_Array1OfPnt2d pnttg1sol;
173 TColgp_Array1OfPnt2d pnttg2sol;
174 TColStd_Array1OfReal par1sol;
175 TColStd_Array1OfReal par2sol;
176 TColStd_Array1OfReal pararg1;
177 TColStd_Array1OfReal pararg2;
188 #endif // _Geom2dGcc_Circ2d2TanRadGeo_HeaderFile