1 // Created on: 1991-03-18
2 // Created by: Remy 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 _GccAna_Circ2d3Tan_HeaderFile
18 #define _GccAna_Circ2d3Tan_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 StdFail_NotDone;
35 class GccEnt_BadQualifier;
36 class GccEnt_QualifiedCirc;
37 class GccEnt_QualifiedLin;
42 //! This class implements the algorithms used to
43 //! create 2d circles tangent to 3 points/lines/circles.
44 //! The arguments of all construction methods are :
45 //! - The three qualified elements for the
46 //! tangency constraints (QualifiedCirc, QualifiedLine,
48 //! - A real Tolerance.
49 //! Tolerance is only used in the limit cases.
51 //! We want to create a circle tangent to an UnqualifiedCirc
52 //! C1 and an UnqualifiedCirc C2 and an UnqualifiedCirc C3
53 //! with a tolerance Tolerance.
54 //! If we do not use Tolerance it is impossible to find
55 //! a solution in the following case : C2 is inside C1
56 //! and there is no intersection point between the two
57 //! circles, and C3 is completly outside C1.
58 //! With Tolerance we will find a solution if the
59 //! lowest distance between C1 and C2 is lower than or
61 class GccAna_Circ2d3Tan
68 //! This method implements the algorithms used to
69 //! create 2d circles tangent to 3 circles.
70 //! ConstructionError is raised if there is a problem during
72 Standard_EXPORT GccAna_Circ2d3Tan(const GccEnt_QualifiedCirc& Qualified1, const GccEnt_QualifiedCirc& Qualified2, const GccEnt_QualifiedCirc& Qualified3, const Standard_Real Tolerance);
74 //! This method implements the algorithms used to
75 //! create 2d circles tangent to 2 circles and 1 line.
76 //! ConstructionError is raised if there is a problem during
78 Standard_EXPORT GccAna_Circ2d3Tan(const GccEnt_QualifiedCirc& Qualified1, const GccEnt_QualifiedCirc& Qualified2, const GccEnt_QualifiedLin& Qualified3, const Standard_Real Tolerance);
80 //! This method implements the algorithms used to
81 //! create 2d circles tangent to 1 circle and 2 lines.
82 //! ConstructionError is raised if there is a problem during
84 Standard_EXPORT GccAna_Circ2d3Tan(const GccEnt_QualifiedCirc& Qualified1, const GccEnt_QualifiedLin& Qualified2, const GccEnt_QualifiedLin& Qualified3, const Standard_Real Tolerance);
86 //! This method implements the algorithms used to
87 //! create 2d circles tangent to 3 lines.
88 //! ConstructionError is raised if there is a problem during
90 Standard_EXPORT GccAna_Circ2d3Tan(const GccEnt_QualifiedLin& Qualified1, const GccEnt_QualifiedLin& Qualified2, const GccEnt_QualifiedLin& Qualified3, const Standard_Real Tolerance);
92 //! This method implements the algorithms used to
93 //! create 2d circles tangent to 2 circles and 1 Point.
94 //! ConstructionError is raised if there is a problem during
96 Standard_EXPORT GccAna_Circ2d3Tan(const GccEnt_QualifiedCirc& Qualified1, const GccEnt_QualifiedCirc& Qualified2, const gp_Pnt2d& Point3, const Standard_Real Tolerance);
98 //! This method implements the algorithms used to
99 //! create 2d circles tangent to a circle and a line and
101 //! ConstructionError is raised if there is a problem during
103 Standard_EXPORT GccAna_Circ2d3Tan(const GccEnt_QualifiedCirc& Qualified1, const GccEnt_QualifiedLin& Qualified2, const gp_Pnt2d& Point3, const Standard_Real Tolerance);
105 //! This method implements the algorithms used to
106 //! create 2d circles tangent to 2 lines and 1 Point.
107 //! ConstructionError is raised if there is a problem during
109 Standard_EXPORT GccAna_Circ2d3Tan(const GccEnt_QualifiedLin& Qualified1, const GccEnt_QualifiedLin& Qualified2, const gp_Pnt2d& Point3, const Standard_Real Tolerance);
111 //! This method implements the algorithms used to
112 //! create 2d circles tangent to a circle and passing
114 //! ConstructionError is raised if there is a problem during
116 Standard_EXPORT GccAna_Circ2d3Tan(const GccEnt_QualifiedCirc& Qualified1, const gp_Pnt2d& Point2, const gp_Pnt2d& Point3, const Standard_Real Tolerance);
118 //! This method implements the algorithms used to
119 //! create 2d circles tangent to a line and passing
121 //! ConstructionError is raised if there is a problem during
123 Standard_EXPORT GccAna_Circ2d3Tan(const GccEnt_QualifiedLin& Qualified1, const gp_Pnt2d& Point2, const gp_Pnt2d& Point3, const Standard_Real Tolerance);
125 //! This method implements the algorithms used to
126 //! create 2d circles passing thrue 3 Points.
127 //! ConstructionError is raised if there is a problem during
129 Standard_EXPORT GccAna_Circ2d3Tan(const gp_Pnt2d& Point1, const gp_Pnt2d& Point2, const gp_Pnt2d& Point3, const Standard_Real Tolerance);
131 //! This method returns True if the construction
132 //! algorithm succeeded.
133 //! Note: IsDone protects against a failure arising from a
134 //! more internal intersection algorithm, which has
135 //! reached its numeric limits.
136 Standard_EXPORT Standard_Boolean IsDone() const;
138 //! This method returns the number of solutions.
139 //! Raises NotDone if the construction algorithm didn't succeed.
140 Standard_EXPORT Standard_Integer NbSolutions() const;
142 //! Returns the solution number Index and raises OutOfRange
143 //! exception if Index is greater than the number of
145 //! Be careful: the Index is only a way to get all the
146 //! solutions, but is not associated to those outside the
147 //! context of the algorithm-object.
148 //! Raises OutOfRange if Index is greater than
149 //! the number of solutions.
150 //! It raises NotDone if the algorithm failed.
151 Standard_EXPORT gp_Circ2d ThisSolution (const Standard_Integer Index) const;
153 //! Returns the informations about the qualifiers of the
155 //! arguments concerning the solution number Index.
156 //! It returns the real qualifiers (the qualifiers given to the
157 //! constructor method in case of enclosed, enclosing and outside
158 //! and the qualifiers computedin case of unqualified).
159 Standard_EXPORT void WhichQualifier (const Standard_Integer Index, GccEnt_Position& Qualif1, GccEnt_Position& Qualif2, GccEnt_Position& Qualif3) const;
161 //! Returns informations about the tangency point between the
162 //! result number Index and the first argument.
163 //! ParSol is the intrinsic parameter of the point PntSol
164 //! on the solution curv.
165 //! ParArg is the intrinsic parameter of the point PntArg
166 //! on the argument curv. Raises OutOfRange if Index is greater than
167 //! the number of solutions.
168 //! It raises NotDone if the algorithm failed.
169 Standard_EXPORT void Tangency1 (const Standard_Integer Index, Standard_Real& ParSol, Standard_Real& ParArg, gp_Pnt2d& PntSol) const;
171 //! Returns informations about the tangency point between the
172 //! result number Index and the first argument.
173 //! ParSol is the intrinsic parameter of the point PntSol
174 //! on the solution curv.
175 //! ParArg is the intrinsic parameter of the point Pntsol
176 //! on the argument curv. Raises OutOfRange if Index is greater than
177 //! the number of solutions.
178 //! It raises NotDone if the algorithm failed.
179 Standard_EXPORT void Tangency2 (const Standard_Integer Index, Standard_Real& ParSol, Standard_Real& ParArg, gp_Pnt2d& PntSol) const;
181 //! Returns informations about the tangency point between the
182 //! result number Index and the first argument.
183 //! ParSol is the intrinsic parameter of the point PntSol
184 //! on the solution curv.
185 //! ParArg is the intrinsic parameter of the point Pntsol
186 //! on the argument curv. Raises OutOfRange if Index is greater than
187 //! the number of solutions.
188 //! It raises NotDone if the algorithm failed.
189 Standard_EXPORT void Tangency3 (const Standard_Integer Index, Standard_Real& ParSol, Standard_Real& ParArg, gp_Pnt2d& PntSol) const;
191 //! Returns True if the solution number Index is equal to
192 //! the first argument. Raises OutOfRange if Index is greater than
193 //! the number of solutions.
194 //! It raises NotDone if the algorithm failed.
195 Standard_EXPORT Standard_Boolean IsTheSame1 (const Standard_Integer Index) const;
197 //! Returns True if the solution number Index is equal to
198 //! the second argument. Raises OutOfRange Index is greater than
199 //! the number of solutions.
200 //! It raises NotDone if the algorithm failed.
201 Standard_EXPORT Standard_Boolean IsTheSame2 (const Standard_Integer Index) const;
203 //! Returns True if the solution number Index is equal to
204 //! the third argument. Raises OutOfRange if Index is greater than
205 //! the number of solutions.
206 //! It raises NotDone if the algorithm failed.
207 Standard_EXPORT Standard_Boolean IsTheSame3 (const Standard_Integer Index) const;
222 Standard_Boolean WellDone;
223 Standard_Integer NbrSol;
224 TColgp_Array1OfCirc2d cirsol;
225 GccEnt_Array1OfPosition qualifier1;
226 GccEnt_Array1OfPosition qualifier2;
227 GccEnt_Array1OfPosition qualifier3;
228 TColStd_Array1OfInteger TheSame1;
229 TColStd_Array1OfInteger TheSame2;
230 TColStd_Array1OfInteger TheSame3;
231 TColgp_Array1OfPnt2d pnttg1sol;
232 TColgp_Array1OfPnt2d pnttg2sol;
233 TColgp_Array1OfPnt2d pnttg3sol;
234 TColStd_Array1OfReal par1sol;
235 TColStd_Array1OfReal par2sol;
236 TColStd_Array1OfReal par3sol;
237 TColStd_Array1OfReal pararg1;
238 TColStd_Array1OfReal pararg2;
239 TColStd_Array1OfReal pararg3;
250 #endif // _GccAna_Circ2d3Tan_HeaderFile