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1 | // Created on: 1993-03-10 |
2 | // Created by: JCV |
3 | // Copyright (c) 1993-1999 Matra Datavision |
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4 | // Copyright (c) 1999-2014 OPEN CASCADE SAS |
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5 | // |
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6 | // This file is part of Open CASCADE Technology software library. |
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7 | // |
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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 |
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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. |
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13 | // |
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14 | // Alternatively, this file may be used under the terms of Open CASCADE |
15 | // commercial license or contractual agreement. |
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16 | |
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17 | |
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18 | #include <ElCLib.hxx> |
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19 | #include <Geom_Circle.hxx> |
20 | #include <Geom_Geometry.hxx> |
21 | #include <gp_Ax2.hxx> |
22 | #include <gp_Circ.hxx> |
23 | #include <gp_Pnt.hxx> |
24 | #include <gp_Trsf.hxx> |
25 | #include <gp_Vec.hxx> |
26 | #include <gp_XYZ.hxx> |
27 | #include <Standard_ConstructionError.hxx> |
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28 | #include <Standard_RangeError.hxx> |
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29 | #include <Standard_Type.hxx> |
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30 | |
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31 | IMPLEMENT_STANDARD_RTTIEXT(Geom_Circle,Geom_Conic) |
32 | |
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33 | typedef Geom_Circle Circle; |
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34 | typedef gp_Ax2 Ax2; |
35 | typedef gp_Pnt Pnt; |
36 | typedef gp_Trsf Trsf; |
37 | typedef gp_Vec Vec; |
38 | typedef gp_XYZ XYZ; |
39 | |
40 | |
41 | |
42 | |
43 | //======================================================================= |
44 | //function : Copy |
45 | //purpose : |
46 | //======================================================================= |
47 | |
48 | Handle(Geom_Geometry) Geom_Circle::Copy() const { |
49 | |
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50 | Handle(Geom_Circle) C; |
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51 | C = new Circle (pos, radius); |
52 | return C; |
53 | } |
54 | |
55 | |
56 | //======================================================================= |
57 | //function : Geom_Circle |
58 | //purpose : |
59 | //======================================================================= |
60 | |
61 | Geom_Circle::Geom_Circle (const gp_Circ& C) : radius (C.Radius()) { |
62 | |
63 | pos = C.Position(); |
64 | } |
65 | |
66 | |
67 | //======================================================================= |
68 | //function : Geom_Circle |
69 | //purpose : |
70 | //======================================================================= |
71 | |
72 | Geom_Circle::Geom_Circle (const Ax2& A2, const Standard_Real R) : radius (R) { |
73 | |
74 | if (R < 0.0) Standard_ConstructionError::Raise(); |
75 | pos = A2; |
76 | } |
77 | |
78 | |
79 | //======================================================================= |
80 | //function : IsClosed |
81 | //purpose : |
82 | //======================================================================= |
83 | |
84 | Standard_Boolean Geom_Circle::IsClosed () const { return Standard_True; } |
85 | |
86 | |
87 | //======================================================================= |
88 | //function : IsPeriodic |
89 | //purpose : |
90 | //======================================================================= |
91 | |
92 | Standard_Boolean Geom_Circle::IsPeriodic () const { return Standard_True; } |
93 | |
94 | |
95 | //======================================================================= |
96 | //function : ReversedParameter |
97 | //purpose : |
98 | //======================================================================= |
99 | |
100 | Standard_Real Geom_Circle::ReversedParameter( const Standard_Real U) const |
101 | { |
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102 | return ( 2. * M_PI - U); |
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103 | } |
104 | |
105 | //======================================================================= |
106 | //function : Eccentricity |
107 | //purpose : |
108 | //======================================================================= |
109 | |
110 | Standard_Real Geom_Circle::Eccentricity () const { return 0.0; } |
111 | |
112 | |
113 | //======================================================================= |
114 | //function : FirstParameter |
115 | //purpose : |
116 | //======================================================================= |
117 | |
118 | Standard_Real Geom_Circle::FirstParameter () const { return 0.0; } |
119 | |
120 | |
121 | //======================================================================= |
122 | //function : LastParameter |
123 | //purpose : |
124 | //======================================================================= |
125 | |
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126 | Standard_Real Geom_Circle::LastParameter () const { return 2.0 * M_PI; } |
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127 | |
128 | |
129 | //======================================================================= |
130 | //function : Circ |
131 | //purpose : |
132 | //======================================================================= |
133 | |
134 | gp_Circ Geom_Circle::Circ () const { return gp_Circ (pos, radius); } |
135 | |
136 | |
137 | //======================================================================= |
138 | //function : SetCirc |
139 | //purpose : |
140 | //======================================================================= |
141 | |
142 | void Geom_Circle::SetCirc (const gp_Circ& C) { |
143 | |
144 | radius = C.Radius(); |
145 | pos = C.Position(); |
146 | } |
147 | |
148 | |
149 | //======================================================================= |
150 | //function : SetRadius |
151 | //purpose : |
152 | //======================================================================= |
153 | |
154 | void Geom_Circle::SetRadius (const Standard_Real R) { |
155 | |
156 | if (R < 0.0) Standard_ConstructionError::Raise(); |
157 | radius = R; |
158 | } |
159 | |
160 | //======================================================================= |
161 | //function : Radius |
162 | //purpose : |
163 | //======================================================================= |
164 | |
165 | Standard_Real Geom_Circle::Radius() const |
166 | { |
167 | return radius; |
168 | } |
169 | |
170 | //======================================================================= |
171 | //function : D0 |
172 | //purpose : |
173 | //======================================================================= |
174 | |
175 | void Geom_Circle::D0 (const Standard_Real U, Pnt& P) const { |
176 | |
177 | P = ElCLib::CircleValue (U, pos, radius); |
178 | } |
179 | |
180 | |
181 | //======================================================================= |
182 | //function : D1 |
183 | //purpose : |
184 | //======================================================================= |
185 | |
186 | void Geom_Circle::D1 (const Standard_Real U, Pnt& P, Vec& V1) const { |
187 | |
188 | ElCLib::CircleD1 (U, pos, radius, P, V1); |
189 | } |
190 | |
191 | |
192 | //======================================================================= |
193 | //function : D2 |
194 | //purpose : |
195 | //======================================================================= |
196 | |
197 | void Geom_Circle::D2 (const Standard_Real U, Pnt& P, Vec& V1, Vec& V2) const { |
198 | |
199 | ElCLib::CircleD2 (U, pos, radius, P, V1, V2); |
200 | } |
201 | |
202 | |
203 | //======================================================================= |
204 | //function : D3 |
205 | //purpose : |
206 | //======================================================================= |
207 | |
208 | void Geom_Circle::D3 ( |
209 | const Standard_Real U, Pnt& P, Vec& V1, Vec& V2, Vec& V3) const { |
210 | |
211 | ElCLib::CircleD3 (U, pos, radius, P, V1, V2, V3); |
212 | } |
213 | |
214 | |
215 | //======================================================================= |
216 | //function : DN |
217 | //purpose : |
218 | //======================================================================= |
219 | |
220 | Vec Geom_Circle::DN (const Standard_Real U, const Standard_Integer N) const { |
221 | |
222 | Standard_RangeError_Raise_if (N < 1, " "); |
223 | return ElCLib::CircleDN (U, pos, radius, N); |
224 | } |
225 | |
226 | |
227 | //======================================================================= |
228 | //function : Transform |
229 | //purpose : |
230 | //======================================================================= |
231 | |
232 | void Geom_Circle::Transform (const Trsf& T) { |
233 | |
234 | radius = radius * Abs(T.ScaleFactor()); |
235 | pos.Transform (T); |
236 | } |