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1 | // Created on: 1991-03-22 |
2 | // Created by: Remy GILET |
3 | // Copyright (c) 1991-1999 Matra Datavision |
4 | // Copyright (c) 1999-2014 OPEN CASCADE SAS |
5 | // |
6 | // This file is part of Open CASCADE Technology software library. |
7 | // |
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. |
13 | // |
14 | // Alternatively, this file may be used under the terms of Open CASCADE |
15 | // commercial license or contractual agreement. |
16 | |
17 | #ifndef _GccAna_Circ2d2TanOn_HeaderFile |
18 | #define _GccAna_Circ2d2TanOn_HeaderFile |
19 | |
20 | #include <Standard.hxx> |
21 | #include <Standard_DefineAlloc.hxx> |
22 | #include <Standard_Handle.hxx> |
23 | |
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 gp_Lin2d; |
38 | class GccEnt_QualifiedLin; |
39 | class gp_Pnt2d; |
40 | class gp_Circ2d; |
41 | |
42 | |
43 | //! Describes functions for building a 2D circle |
44 | //! - tangential to 2 curves, or |
45 | //! - tangential to a curve and passing through a point, or |
46 | //! - passing through 2 points, |
47 | //! and with its center on a curve. For these analytic |
48 | //! algorithms, curves are circles or lines. |
49 | //! A Circ2d2TanOn object provides a framework for: |
50 | //! - defining the construction of 2D circles(s), |
51 | //! - implementing the construction algorithm, and |
52 | //! - consulting the result(s). |
53 | class GccAna_Circ2d2TanOn |
54 | { |
55 | public: |
56 | |
57 | DEFINE_STANDARD_ALLOC |
58 | |
59 | |
60 | //! This method implements the algorithms used to |
61 | //! create 2d circles TANgent to two 2d circles and |
62 | //! having the center ON a 2d line. |
63 | Standard_EXPORT GccAna_Circ2d2TanOn(const GccEnt_QualifiedCirc& Qualified1, const GccEnt_QualifiedCirc& Qualified2, const gp_Lin2d& OnLine, const Standard_Real Tolerance); |
64 | |
65 | //! This method implements the algorithms used to |
66 | //! create 2d circles TANgent to a 2d circle and a 2d line |
67 | //! having the center ON a 2d line. |
68 | Standard_EXPORT GccAna_Circ2d2TanOn(const GccEnt_QualifiedCirc& Qualified1, const GccEnt_QualifiedLin& Qualified2, const gp_Lin2d& OnLine, const Standard_Real Tolerance); |
69 | |
70 | //! This method implements the algorithms used to |
71 | //! create 2d circles TANgent to two 2d lines |
72 | //! having the center ON a 2d line. |
73 | Standard_EXPORT GccAna_Circ2d2TanOn(const GccEnt_QualifiedLin& Qualified1, const GccEnt_QualifiedLin& Qualified2, const gp_Lin2d& OnLine, const Standard_Real Tolerance); |
74 | |
75 | //! This method implements the algorithms used to |
76 | //! create 2d circles TANgent to a 2d circle and a point |
77 | //! having the center ON a 2d line. |
78 | Standard_EXPORT GccAna_Circ2d2TanOn(const GccEnt_QualifiedCirc& Qualified1, const gp_Pnt2d& Point2, const gp_Lin2d& OnLine, const Standard_Real Tolerance); |
79 | |
80 | //! This method implements the algorithms used to |
81 | //! create 2d circles TANgent to a 2d line and a point |
82 | //! having the center ON a 2d line. |
83 | Standard_EXPORT GccAna_Circ2d2TanOn(const GccEnt_QualifiedLin& Qualified1, const gp_Pnt2d& Point2, const gp_Lin2d& OnLine, const Standard_Real Tolerance); |
84 | |
85 | //! This method implements the algorithms used to |
86 | //! create 2d circles TANgent to two points |
87 | //! having the center ON a 2d line. |
88 | Standard_EXPORT GccAna_Circ2d2TanOn(const gp_Pnt2d& Point1, const gp_Pnt2d& Point2, const gp_Lin2d& OnLine, const Standard_Real Tolerance); |
89 | |
90 | //! This method implements the algorithms used to |
91 | //! create 2d circles TANgent to two 2d circles and |
92 | //! having the center ON a 2d circle. |
93 | Standard_EXPORT GccAna_Circ2d2TanOn(const GccEnt_QualifiedCirc& Qualified1, const GccEnt_QualifiedCirc& Qualified2, const gp_Circ2d& OnCirc, const Standard_Real Tolerance); |
94 | |
95 | //! This method implements the algorithms used to |
96 | //! create 2d circles TANgent to a circle and a line |
97 | //! having the center ON a 2d circle. |
98 | Standard_EXPORT GccAna_Circ2d2TanOn(const GccEnt_QualifiedCirc& Qualified1, const GccEnt_QualifiedLin& Qualified2, const gp_Circ2d& OnCirc, const Standard_Real Tolerance); |
99 | |
100 | //! This method implements the algorithms used to |
101 | //! create 2d circles TANgent to a circle and a point |
102 | //! having the center ON a 2d circle. |
103 | Standard_EXPORT GccAna_Circ2d2TanOn(const GccEnt_QualifiedCirc& Qualified1, const gp_Pnt2d& Point2, const gp_Circ2d& OnCirc, const Standard_Real Tolerance); |
104 | |
105 | //! This method implements the algorithms used to |
106 | //! create 2d circles TANgent to two 2d lines |
107 | //! having the center ON a 2d circle. |
108 | Standard_EXPORT GccAna_Circ2d2TanOn(const GccEnt_QualifiedLin& Qualified1, const GccEnt_QualifiedLin& Qualified2, const gp_Circ2d& OnCirc, const Standard_Real Tolerance); |
109 | |
110 | //! This method implements the algorithms used to |
111 | //! create 2d circles TANgent to a line and a point |
112 | //! having the center ON a 2d circle. |
113 | Standard_EXPORT GccAna_Circ2d2TanOn(const GccEnt_QualifiedLin& Qualified1, const gp_Pnt2d& Point2, const gp_Circ2d& OnCirc, const Standard_Real Tolerance); |
114 | |
115 | //! This method implements the algorithms used to create |
116 | //! 2d circles TANgent to two points having the center ON |
117 | //! a 2d circle. |
118 | Standard_EXPORT GccAna_Circ2d2TanOn(const gp_Pnt2d& Point1, const gp_Pnt2d& Point2, const gp_Circ2d& OnCirc, const Standard_Real Tolerance); |
119 | |
120 | |
121 | //! Returns true if the construction algorithm does not fail |
122 | //! (even if it finds no solution). |
123 | //! Note: IsDone protects against a failure arising from a |
124 | //! more internal intersection algorithm, which has reached its numeric limits. |
125 | Standard_EXPORT Standard_Boolean IsDone() const; |
126 | |
127 | |
128 | //! Returns the number of circles, representing solutions |
129 | //! computed by this algorithm. |
130 | //! Exceptions |
131 | //! StdFail_NotDone if the construction fails. |
132 | Standard_EXPORT Standard_Integer NbSolutions() const; |
133 | |
134 | //! Returns the solution number Index and raises OutOfRange |
135 | //! exception if Index is greater than the number of solutions. |
136 | //! Be careful: the Index is only a way to get all the |
137 | //! solutions, but is not associated to those outside the context |
138 | //! of the algorithm-object. |
139 | //! Exceptions |
140 | //! Standard_OutOfRange if Index is less than zero or |
141 | //! greater than the number of solutions computed by this algorithm. |
142 | //! StdFail_NotDone if the construction fails. |
143 | Standard_EXPORT gp_Circ2d ThisSolution (const Standard_Integer Index) const; |
144 | |
145 | //! Returns the qualifiers Qualif1 and Qualif2 of the |
146 | //! tangency arguments for the solution of index Index |
147 | //! computed by this algorithm. |
148 | //! The returned qualifiers are: |
149 | //! - those specified at the start of construction when the |
150 | //! solutions are defined as enclosed, enclosing or |
151 | //! outside with respect to the arguments, or |
152 | //! - those computed during construction (i.e. enclosed, |
153 | //! enclosing or outside) when the solutions are defined |
154 | //! as unqualified with respect to the arguments, or |
155 | //! - GccEnt_noqualifier if the tangency argument is a point. |
156 | //! Exceptions |
157 | //! Standard_OutOfRange if Index is less than zero or |
158 | //! greater than the number of solutions computed by this algorithm. |
159 | //! StdFail_NotDone if the construction fails. |
160 | Standard_EXPORT void WhichQualifier (const Standard_Integer Index, GccEnt_Position& Qualif1, GccEnt_Position& Qualif2) const; |
161 | |
162 | //! Returns the informations about the tangency point between the |
163 | //! result number Index and the first argument. |
164 | //! ParSol is the intrinsic parameter of the point PntSol on |
165 | //! the solution |
166 | //! ParArg is the intrinsic parameter of the point PntSol on |
167 | //! the first argument. Raises OutOfRange if Index is greater than the number |
168 | //! of solutions and NotDone if IsDone returns false. |
169 | Standard_EXPORT void Tangency1 (const Standard_Integer Index, Standard_Real& ParSol, Standard_Real& ParArg, gp_Pnt2d& PntSol) const; |
170 | |
171 | //! Returns the informations about the tangency point between the |
172 | //! result number Index and the second argument. |
173 | //! ParSol is the intrinsic parameter of the point PntSol on |
174 | //! the solution. |
175 | //! ParArg is the intrinsic parameter of the point PntSol on |
176 | //! the second argument. Raises OutOfRange if Index is greater than the number |
177 | //! of solutions and NotDone if IsDone returns false. |
178 | Standard_EXPORT void Tangency2 (const Standard_Integer Index, Standard_Real& ParSol, Standard_Real& ParArg, gp_Pnt2d& PntSol) const; |
179 | |
180 | //! Returns the informations about the center (on the curv) of |
181 | //! the result number Index and the third argument. |
182 | //! ParArg is the intrinsic parameter of the point PntArg on |
183 | //! the third argument. |
184 | //! Exceptions |
185 | //! Standard_OutOfRange if Index is less than zero or |
186 | //! greater than the number of solutions computed by this algorithm. |
187 | //! StdFail_NotDone if the construction fails. |
188 | Standard_EXPORT void CenterOn3 (const Standard_Integer Index, Standard_Real& ParArg, gp_Pnt2d& PntArg) const; |
189 | |
190 | //! True if the solution and the first argument are the same |
191 | //! (2 circles). |
192 | //! If R1 is the radius of the first argument and Rsol the radius |
193 | //! of the solution and dist the distance between the two centers, |
194 | //! we concider the two circles are identical if R1+dist-Rsol is |
195 | //! less than Tolerance. |
196 | //! False in the other cases. |
197 | //! Raises OutOfRange if Index is greater than the number |
198 | //! of solutions and NotDone if IsDone returns false. |
199 | Standard_EXPORT Standard_Boolean IsTheSame1 (const Standard_Integer Index) const; |
200 | |
201 | //! True if the solution and the second argument are the same |
202 | //! (2 circles). |
203 | //! If R2 is the radius of the second argument and Rsol the radius |
204 | //! of the solution and dist the distance between the two centers, |
205 | //! we concider the two circles are identical if R2+dist-Rsol is |
206 | //! less than Tolerance. |
207 | //! False in the other cases. |
208 | //! Raises OutOfRange if Index is greater than the number |
209 | //! of solutions and NotDone if IsDone returns false. |
210 | Standard_EXPORT Standard_Boolean IsTheSame2 (const Standard_Integer Index) const; |
211 | |
212 | |
213 | |
214 | |
215 | protected: |
216 | |
217 | |
218 | |
219 | |
220 | |
221 | private: |
222 | |
223 | |
224 | |
225 | Standard_Boolean WellDone; |
226 | Standard_Integer NbrSol; |
227 | TColgp_Array1OfCirc2d cirsol; |
228 | GccEnt_Array1OfPosition qualifier1; |
229 | GccEnt_Array1OfPosition qualifier2; |
230 | TColStd_Array1OfInteger TheSame1; |
231 | TColStd_Array1OfInteger TheSame2; |
232 | TColgp_Array1OfPnt2d pnttg1sol; |
233 | TColgp_Array1OfPnt2d pnttg2sol; |
234 | TColgp_Array1OfPnt2d pntcen; |
235 | TColStd_Array1OfReal par1sol; |
236 | TColStd_Array1OfReal par2sol; |
237 | TColStd_Array1OfReal pararg1; |
238 | TColStd_Array1OfReal pararg2; |
239 | TColStd_Array1OfReal parcen3; |
240 | |
241 | |
242 | }; |
243 | |
244 | |
245 | |
246 | |
247 | |
248 | |
249 | |
250 | #endif // _GccAna_Circ2d2TanOn_HeaderFile |