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1 | // Created on: 1993-04-13 |
2 | // Created by: JCV |
3 | // Copyright (c) 1993-1999 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 _gp_HeaderFile |
18 | #define _gp_HeaderFile |
19 | |
20 | #include <Standard.hxx> |
21 | #include <Standard_DefineAlloc.hxx> |
22 | #include <Standard_Handle.hxx> |
23 | |
24 | #include <Standard_Real.hxx> |
25 | class gp_Pnt; |
26 | class gp_Dir; |
27 | class gp_Ax1; |
28 | class gp_Ax2; |
29 | class gp_Pnt2d; |
30 | class gp_Dir2d; |
31 | class gp_Ax2d; |
32 | class gp_XYZ; |
33 | class gp_Mat; |
34 | class gp_Quaternion; |
35 | class gp_Trsf; |
36 | class gp_GTrsf; |
37 | class gp_Pnt; |
38 | class gp_Vec; |
39 | class gp_Dir; |
40 | class gp_Ax1; |
41 | class gp_Ax2; |
42 | class gp_Ax3; |
43 | class gp_Lin; |
44 | class gp_Circ; |
45 | class gp_Elips; |
46 | class gp_Hypr; |
47 | class gp_Parab; |
48 | class gp_Pln; |
49 | class gp_Cylinder; |
50 | class gp_Sphere; |
51 | class gp_Torus; |
52 | class gp_Cone; |
53 | class gp_XY; |
54 | class gp_Mat2d; |
55 | class gp_Trsf2d; |
56 | class gp_GTrsf2d; |
57 | class gp_Pnt2d; |
58 | class gp_Vec2d; |
59 | class gp_Dir2d; |
60 | class gp_Ax2d; |
61 | class gp_Ax22d; |
62 | class gp_Lin2d; |
63 | class gp_Circ2d; |
64 | class gp_Elips2d; |
65 | class gp_Hypr2d; |
66 | class gp_Parab2d; |
67 | |
68 | |
69 | |
70 | //! The geometric processor package, called gp, provides an |
71 | //! implementation of entities used : |
72 | //! . for algebraic calculation such as "XYZ" coordinates, "Mat" |
73 | //! matrix |
74 | //! . for basis analytic geometry such as Transformations, point, |
75 | //! vector, line, plane, axis placement, conics, and elementary |
76 | //! surfaces. |
77 | //! These entities are defined in 2d and 3d space. |
78 | //! All the classes of this package are non-persistent. |
79 | class gp |
80 | { |
81 | public: |
82 | |
83 | DEFINE_STANDARD_ALLOC |
84 | |
85 | |
86 | //! Method of package gp |
87 | //! |
88 | //! In geometric computations, defines the tolerance criterion |
89 | //! used to determine when two numbers can be considered equal. |
90 | //! Many class functions use this tolerance criterion, for |
91 | //! example, to avoid division by zero in geometric |
92 | //! computations. In the documentation, tolerance criterion is |
93 | //! always referred to as gp::Resolution(). |
94 | static Standard_Real Resolution(); |
95 | |
96 | //! Identifies a Cartesian point with coordinates X = Y = Z = 0.0.0 |
97 | Standard_EXPORT static const gp_Pnt& Origin(); |
98 | |
99 | //! Returns a unit vector with the combination (1,0,0) |
100 | Standard_EXPORT static const gp_Dir& DX(); |
101 | |
102 | //! Returns a unit vector with the combination (0,1,0) |
103 | Standard_EXPORT static const gp_Dir& DY(); |
104 | |
105 | //! Returns a unit vector with the combination (0,0,1) |
106 | Standard_EXPORT static const gp_Dir& DZ(); |
107 | |
108 | //! Identifies an axis where its origin is Origin |
109 | //! and its unit vector coordinates X = 1.0, Y = Z = 0.0 |
110 | Standard_EXPORT static const gp_Ax1& OX(); |
111 | |
112 | //! Identifies an axis where its origin is Origin |
113 | //! and its unit vector coordinates Y = 1.0, X = Z = 0.0 |
114 | Standard_EXPORT static const gp_Ax1& OY(); |
115 | |
116 | //! Identifies an axis where its origin is Origin |
117 | //! and its unit vector coordinates Z = 1.0, Y = X = 0.0 |
118 | Standard_EXPORT static const gp_Ax1& OZ(); |
119 | |
120 | //! Identifies a coordinate system where its origin is Origin, |
121 | //! and its "main Direction" and "X Direction" coordinates |
122 | //! Z = 1.0, X = Y =0.0 and X direction coordinates X = 1.0, Y = Z = 0.0 |
123 | Standard_EXPORT static const gp_Ax2& XOY(); |
124 | |
125 | //! Identifies a coordinate system where its origin is Origin, |
126 | //! and its "main Direction" and "X Direction" coordinates |
127 | //! Y = 1.0, X = Z =0.0 and X direction coordinates Z = 1.0, X = Y = 0.0 |
128 | Standard_EXPORT static const gp_Ax2& ZOX(); |
129 | |
130 | //! Identifies a coordinate system where its origin is Origin, |
131 | //! and its "main Direction" and "X Direction" coordinates |
132 | //! X = 1.0, Z = Y =0.0 and X direction coordinates Y = 1.0, X = Z = 0.0 |
133 | //! In 2D space |
134 | Standard_EXPORT static const gp_Ax2& YOZ(); |
135 | |
136 | //! Identifies a Cartesian point with coordinates X = Y = 0.0 |
137 | Standard_EXPORT static const gp_Pnt2d& Origin2d(); |
138 | |
139 | //! Returns a unit vector with the combinations (1,0) |
140 | Standard_EXPORT static const gp_Dir2d& DX2d(); |
141 | |
142 | //! Returns a unit vector with the combinations (0,1) |
143 | Standard_EXPORT static const gp_Dir2d& DY2d(); |
144 | |
145 | //! Identifies an axis where its origin is Origin2d |
146 | //! and its unit vector coordinates are: X = 1.0, Y = 0.0 |
147 | Standard_EXPORT static const gp_Ax2d& OX2d(); |
148 | |
149 | //! Identifies an axis where its origin is Origin2d |
150 | //! and its unit vector coordinates are Y = 1.0, X = 0.0 |
151 | Standard_EXPORT static const gp_Ax2d& OY2d(); |
152 | |
153 | |
154 | |
155 | |
156 | protected: |
157 | |
158 | |
159 | |
160 | |
161 | |
162 | private: |
163 | |
164 | |
165 | |
166 | |
167 | friend class gp_XYZ; |
168 | friend class gp_Mat; |
169 | friend class gp_Quaternion; |
170 | friend class gp_Trsf; |
171 | friend class gp_GTrsf; |
172 | friend class gp_Pnt; |
173 | friend class gp_Vec; |
174 | friend class gp_Dir; |
175 | friend class gp_Ax1; |
176 | friend class gp_Ax2; |
177 | friend class gp_Ax3; |
178 | friend class gp_Lin; |
179 | friend class gp_Circ; |
180 | friend class gp_Elips; |
181 | friend class gp_Hypr; |
182 | friend class gp_Parab; |
183 | friend class gp_Pln; |
184 | friend class gp_Cylinder; |
185 | friend class gp_Sphere; |
186 | friend class gp_Torus; |
187 | friend class gp_Cone; |
188 | friend class gp_XY; |
189 | friend class gp_Mat2d; |
190 | friend class gp_Trsf2d; |
191 | friend class gp_GTrsf2d; |
192 | friend class gp_Pnt2d; |
193 | friend class gp_Vec2d; |
194 | friend class gp_Dir2d; |
195 | friend class gp_Ax2d; |
196 | friend class gp_Ax22d; |
197 | friend class gp_Lin2d; |
198 | friend class gp_Circ2d; |
199 | friend class gp_Elips2d; |
200 | friend class gp_Hypr2d; |
201 | friend class gp_Parab2d; |
202 | |
203 | }; |
204 | |
205 | |
206 | #include <gp.lxx> |
207 | |
208 | |
209 | |
210 | |
211 | |
212 | #endif // _gp_HeaderFile |