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1 | // Created on: 1992-06-30 |
2 | // Created by: Laurent BUCHARD |
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 _IntAna_Curve_HeaderFile |
18 | #define _IntAna_Curve_HeaderFile |
19 | |
20 | #include <Standard.hxx> |
21 | #include <Standard_DefineAlloc.hxx> |
22 | #include <Standard_Handle.hxx> |
23 | |
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24 | #include <GeomAbs_SurfaceType.hxx> |
25 | #include <gp_Ax3.hxx> |
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26 | #include <TColStd_ListOfReal.hxx> |
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27 | |
28 | //! Definition of a parametric Curve which is the result |
29 | //! of the intersection between two quadrics. |
30 | class IntAna_Curve |
31 | { |
32 | public: |
33 | |
34 | DEFINE_STANDARD_ALLOC |
35 | |
36 | |
37 | //! Empty Constructor |
38 | Standard_EXPORT IntAna_Curve(); |
39 | |
40 | //! Sets the parameters used to compute Points and Derivative |
41 | //! on the curve. |
42 | Standard_EXPORT void SetCylinderQuadValues (const gp_Cylinder& Cylinder, const Standard_Real Qxx, const Standard_Real Qyy, const Standard_Real Qzz, const Standard_Real Qxy, const Standard_Real Qxz, const Standard_Real Qyz, const Standard_Real Qx, const Standard_Real Qy, const Standard_Real Qz, const Standard_Real Q1, const Standard_Real Tol, const Standard_Real DomInf, const Standard_Real DomSup, const Standard_Boolean TwoZForATheta, const Standard_Boolean ZIsPositive); |
43 | |
44 | //! Sets the parameters used to compute Points and |
45 | //! Derivative on the curve. |
46 | Standard_EXPORT void SetConeQuadValues (const gp_Cone& Cone, const Standard_Real Qxx, const Standard_Real Qyy, const Standard_Real Qzz, const Standard_Real Qxy, const Standard_Real Qxz, const Standard_Real Qyz, const Standard_Real Qx, const Standard_Real Qy, const Standard_Real Qz, const Standard_Real Q1, const Standard_Real Tol, const Standard_Real DomInf, const Standard_Real DomSup, const Standard_Boolean TwoZForATheta, const Standard_Boolean ZIsPositive); |
47 | |
48 | //! Returns TRUE if the curve is not infinite at the |
49 | //! last parameter or at the first parameter of the domain. |
50 | Standard_EXPORT Standard_Boolean IsOpen() const; |
51 | |
52 | //! Returns the paramatric domain of the curve. |
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53 | Standard_EXPORT void Domain(Standard_Real& theFirst, Standard_Real& theLast) const; |
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54 | |
55 | //! Returns TRUE if the function is constant. |
56 | Standard_EXPORT Standard_Boolean IsConstant() const; |
57 | |
58 | //! Returns TRUE if the domain is open at the beginning. |
59 | Standard_EXPORT Standard_Boolean IsFirstOpen() const; |
60 | |
61 | //! Returns TRUE if the domain is open at the end. |
62 | Standard_EXPORT Standard_Boolean IsLastOpen() const; |
63 | |
64 | //! Returns the point at parameter Theta on the curve. |
65 | Standard_EXPORT gp_Pnt Value (const Standard_Real Theta); |
66 | |
67 | //! Returns the point and the first derivative at parameter |
68 | //! Theta on the curve. |
69 | Standard_EXPORT Standard_Boolean D1u (const Standard_Real Theta, gp_Pnt& P, gp_Vec& V); |
70 | |
71 | //! Tries to find the parameter of the point P on the curve. |
72 | //! If the method returns False, the "projection" is |
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73 | //! impossible. |
74 | //! If the method returns True at least one parameter has been found. |
75 | //! theParams is always sorted in ascending order. |
76 | Standard_EXPORT void FindParameter(const gp_Pnt& P, |
77 | TColStd_ListOfReal& theParams) const; |
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78 | |
79 | //! If flag is True, the Curve is not defined at the |
80 | //! first parameter of its domain. |
81 | Standard_EXPORT void SetIsFirstOpen (const Standard_Boolean Flag); |
82 | |
83 | //! If flag is True, the Curve is not defined at the |
84 | //! first parameter of its domain. |
85 | Standard_EXPORT void SetIsLastOpen (const Standard_Boolean Flag); |
86 | |
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87 | //! Trims this curve |
88 | Standard_EXPORT void SetDomain(const Standard_Real theFirst, const Standard_Real theLast); |
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89 | |
90 | |
91 | |
92 | |
93 | protected: |
94 | |
95 | |
96 | //! Protected function. |
97 | Standard_EXPORT gp_Pnt InternalValue (const Standard_Real Theta1, const Standard_Real Theta2) const; |
98 | |
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99 | //! Protected function. |
100 | Standard_EXPORT void InternalUVValue (const Standard_Real Param, Standard_Real& U, Standard_Real& V, Standard_Real& A, Standard_Real& B, Standard_Real& C, Standard_Real& Co, Standard_Real& Si, Standard_Real& Di) const; |
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101 | |
102 | |
103 | |
104 | private: |
105 | |
106 | |
107 | |
108 | Standard_Real Z0Cte; |
109 | Standard_Real Z0Sin; |
110 | Standard_Real Z0Cos; |
111 | Standard_Real Z0SinSin; |
112 | Standard_Real Z0CosCos; |
113 | Standard_Real Z0CosSin; |
114 | Standard_Real Z1Cte; |
115 | Standard_Real Z1Sin; |
116 | Standard_Real Z1Cos; |
117 | Standard_Real Z1SinSin; |
118 | Standard_Real Z1CosCos; |
119 | Standard_Real Z1CosSin; |
120 | Standard_Real Z2Cte; |
121 | Standard_Real Z2Sin; |
122 | Standard_Real Z2Cos; |
123 | Standard_Real Z2SinSin; |
124 | Standard_Real Z2CosCos; |
125 | Standard_Real Z2CosSin; |
126 | Standard_Boolean TwoCurves; |
127 | Standard_Boolean TakeZPositive; |
128 | Standard_Real Tolerance; |
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129 | |
130 | //! Internal fields defining the default domain |
131 | Standard_Real DomainInf, DomainSup; |
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132 | Standard_Boolean RestrictedInf; |
133 | Standard_Boolean RestrictedSup; |
134 | Standard_Boolean firstbounded; |
135 | Standard_Boolean lastbounded; |
136 | GeomAbs_SurfaceType typequadric; |
137 | Standard_Real RCyl; |
138 | Standard_Real Angle; |
139 | gp_Ax3 Ax3; |
140 | |
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141 | //! Trim boundaries |
142 | Standard_Real myFirstParameter, myLastParameter; |
143 | |
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144 | |
145 | }; |
146 | |
147 | |
148 | |
149 | |
150 | |
151 | |
152 | |
153 | #endif // _IntAna_Curve_HeaderFile |