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1 | // Created on: 1992-05-06 |
2 | // Created by: Jacques GOUSSARD |
3 | // Copyright (c) 1992-1999 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 _IntPatch_Line_HeaderFile |
18 | #define _IntPatch_Line_HeaderFile |
19 | |
20 | #include <Standard.hxx> |
21 | #include <Standard_Type.hxx> |
22 | |
23 | #include <IntPatch_IType.hxx> |
24 | #include <Standard_Boolean.hxx> |
25 | #include <IntSurf_TypeTrans.hxx> |
26 | #include <IntSurf_Situation.hxx> |
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27 | #include <Standard_Transient.hxx> |
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28 | class Standard_DomainError; |
29 | class Standard_OutOfRange; |
30 | |
31 | |
32 | class IntPatch_Line; |
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33 | DEFINE_STANDARD_HANDLE(IntPatch_Line, Standard_Transient) |
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34 | |
35 | //! Definition of an intersection line between two |
36 | //! surfaces. |
37 | //! A line may be either geometric : line, circle, ellipse, |
38 | //! parabola, hyperbola, as defined in the class GLine, |
39 | //! or analytic, as defined in the class ALine, or defined |
40 | //! by a set of points (coming from a walking algorithm) as |
41 | //! defined in the class WLine. |
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42 | class IntPatch_Line : public Standard_Transient |
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43 | { |
44 | |
45 | public: |
46 | |
47 | |
48 | //! To set the values returned by IsUIsoS1,.... |
49 | //! The default values are False. |
50 | void SetValue (const Standard_Boolean Uiso1, const Standard_Boolean Viso1, const Standard_Boolean Uiso2, const Standard_Boolean Viso2); |
51 | |
52 | //! Returns the type of geometry 3d (Line, Circle, Parabola, |
53 | //! Hyperbola, Ellipse, Analytic, Walking, Restriction) |
54 | IntPatch_IType ArcType() const; |
55 | |
56 | //! Returns TRUE if the intersection is a line of tangency |
57 | //! between the 2 patches. |
58 | Standard_Boolean IsTangent() const; |
59 | |
60 | //! Returns the type of the transition of the line |
61 | //! for the first surface. The transition is "constant" |
62 | //! along the line. |
63 | //! The transition is IN if the line is oriented in such |
64 | //! a way that the system of vector (N1,N2,T) is right-handed, |
65 | //! where N1 is the normal to the first surface at a point P, |
66 | //! N2 is the normal to the second surface at a point P, |
67 | //! T is the tangent to the intersection line at P. |
68 | //! If the system of vector is left-handed, the transition |
69 | //! is OUT. |
70 | //! When N1 and N2 are colinear all along the intersection |
71 | //! line, the transition will be |
72 | //! - TOUCH, if it is possible to use the 2nd derivatives |
73 | //! to determine the position of one surafce compared |
74 | //! to the other (see Situation) |
75 | //! - UNDECIDED otherwise. |
76 | //! |
77 | //! If one of the transition is TOUCH or UNDECIDED, the other |
78 | //! one has got the same value. |
79 | IntSurf_TypeTrans TransitionOnS1() const; |
80 | |
81 | //! Returns the type of the transition of the line |
82 | //! for the second surface. The transition is "constant" |
83 | //! along the line. |
84 | IntSurf_TypeTrans TransitionOnS2() const; |
85 | |
86 | //! Returns the situation (INSIDE/OUTSIDE/UNKNOWN) of |
87 | //! the first patch compared to the second one, when |
88 | //! TransitionOnS1 or TransitionOnS2 returns TOUCH. |
89 | //! Otherwise, an exception is raised. |
90 | IntSurf_Situation SituationS1() const; |
91 | |
92 | //! Returns the situation (INSIDE/OUTSIDE/UNKNOWN) of |
93 | //! the second patch compared to the first one, when |
94 | //! TransitionOnS1 or TransitionOnS2 returns TOUCH. |
95 | //! Otherwise, an exception is raised. |
96 | IntSurf_Situation SituationS2() const; |
97 | |
98 | //! Returns TRUE if the intersection is a U isoparametric curve |
99 | //! on the first patch. |
100 | Standard_Boolean IsUIsoOnS1() const; |
101 | |
102 | //! Returns TRUE if the intersection is a V isoparametric curve |
103 | //! on the first patch. |
104 | Standard_Boolean IsVIsoOnS1() const; |
105 | |
106 | //! Returns TRUE if the intersection is a U isoparametric curve |
107 | //! on the second patch. |
108 | Standard_Boolean IsUIsoOnS2() const; |
109 | |
110 | //! Returns TRUE if the intersection is a V isoparametric curve |
111 | //! on the second patch. |
112 | Standard_Boolean IsVIsoOnS2() const; |
113 | |
114 | |
115 | |
116 | |
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117 | DEFINE_STANDARD_RTTIEXT(IntPatch_Line,Standard_Transient) |
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118 | |
119 | protected: |
120 | |
121 | |
122 | //! To initialize the fields, when the transitions |
123 | //! are In or Out. |
124 | Standard_EXPORT IntPatch_Line(const Standard_Boolean Tang, const IntSurf_TypeTrans Trans1, const IntSurf_TypeTrans Trans2); |
125 | |
126 | //! To initialize the fields, when the transitions |
127 | //! are Touch. |
128 | Standard_EXPORT IntPatch_Line(const Standard_Boolean Tang, const IntSurf_Situation Situ1, const IntSurf_Situation Situ2); |
129 | |
130 | //! To initialize the fields, when the transitions |
131 | //! are Undecided. |
132 | Standard_EXPORT IntPatch_Line(const Standard_Boolean Tang); |
133 | |
134 | IntPatch_IType typ; |
135 | |
136 | |
137 | private: |
138 | |
139 | |
140 | Standard_Boolean tg; |
141 | IntSurf_TypeTrans tS1; |
142 | IntSurf_TypeTrans tS2; |
143 | IntSurf_Situation sit1; |
144 | IntSurf_Situation sit2; |
145 | Standard_Boolean uS1; |
146 | Standard_Boolean vS1; |
147 | Standard_Boolean uS2; |
148 | Standard_Boolean vS2; |
149 | |
150 | |
151 | }; |
152 | |
153 | |
154 | #include <IntPatch_Line.lxx> |
155 | |
156 | |
157 | |
158 | |
159 | |
160 | #endif // _IntPatch_Line_HeaderFile |