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1 | // Created on: 1993-01-09 |
2 | // Created by: CKY / Contract Toubro-Larsen ( Kiran ) |
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 _IGESGeom_SplineCurve_HeaderFile |
18 | #define _IGESGeom_SplineCurve_HeaderFile |
19 | |
20 | #include <Standard.hxx> |
21 | #include <Standard_Type.hxx> |
22 | |
23 | #include <Standard_Integer.hxx> |
24 | #include <TColStd_HArray1OfReal.hxx> |
25 | #include <TColStd_HArray2OfReal.hxx> |
26 | #include <IGESData_IGESEntity.hxx> |
27 | #include <Standard_Real.hxx> |
28 | class Standard_DimensionMismatch; |
29 | class Standard_OutOfRange; |
30 | |
31 | |
32 | class IGESGeom_SplineCurve; |
33 | DEFINE_STANDARD_HANDLE(IGESGeom_SplineCurve, IGESData_IGESEntity) |
34 | |
35 | //! Defines IGESSplineCurve, Type <112> Form <0> |
36 | //! in package IGESGeom |
37 | //! The parametric spline is a sequence of parametric |
38 | //! polynomial segments. The curve could be of the type |
39 | //! Linear, Quadratic, Cubic, Wilson-Fowler, Modified |
40 | //! Wilson-Fowler, B-Spline. The N polynomial segments |
41 | //! are delimited by the break points T(1), T(2), T(3), |
42 | //! ..., T(N+1). |
43 | class IGESGeom_SplineCurve : public IGESData_IGESEntity |
44 | { |
45 | |
46 | public: |
47 | |
48 | |
49 | Standard_EXPORT IGESGeom_SplineCurve(); |
50 | |
51 | //! This method is used to set the fields of the class |
52 | //! SplineCurve |
53 | //! - aType : Spline Type |
54 | //! 1 = Linear |
55 | //! 2 = Quadratic |
56 | //! 3 = Cubic |
57 | //! 4 = Wilson-Fowler |
58 | //! 5 = Modified Wilson-Fowler |
59 | //! 6 = B Spline |
60 | //! - aDegree : Degree of continuity w.r.t. arc length |
61 | //! - nbDimensions : Number of dimensions |
62 | //! 2 = Planar |
63 | //! 3 = Non-planar |
64 | //! - allBreakPoints : Array of break points |
65 | //! - allXPolynomials : X coordinate polynomials of segments |
66 | //! - allYPolynomials : Y coordinate polynomials of segments |
67 | //! - allZPolynomials : Z coordinate polynomials of segments |
68 | //! - allXValues : Values of 1st, 2nd, 3rd derivatives of |
69 | //! X polynomials at the terminate point |
70 | //! and values of X at terminate point |
71 | //! - allYValues : Values of 1st, 2nd, 3rd derivatives of |
72 | //! Y polynomials at the terminate point |
73 | //! and values of Y at terminate point |
74 | //! - allZvalues : Values of 1st, 2nd, 3rd derivatives of |
75 | //! Z polynomials at the terminate point |
76 | //! and values of Z at terminate point |
77 | //! raises exception if allXPolynomials, allYPolynomials |
78 | //! & allZPolynomials are not of same size OR allXValues, allYValues |
79 | //! & allZValues are not of size 4 |
80 | Standard_EXPORT void Init (const Standard_Integer aType, const Standard_Integer aDegree, const Standard_Integer nbDimensions, const Handle(TColStd_HArray1OfReal)& allBreakPoints, const Handle(TColStd_HArray2OfReal)& allXPolynomials, const Handle(TColStd_HArray2OfReal)& allYPolynomials, const Handle(TColStd_HArray2OfReal)& allZPolynomials, const Handle(TColStd_HArray1OfReal)& allXvalues, const Handle(TColStd_HArray1OfReal)& allYvalues, const Handle(TColStd_HArray1OfReal)& allZvalues); |
81 | |
82 | //! returns the type of Spline curve |
83 | Standard_EXPORT Standard_Integer SplineType() const; |
84 | |
85 | //! returns the degree of the curve |
86 | Standard_EXPORT Standard_Integer Degree() const; |
87 | |
88 | //! returns the number of dimensions |
89 | //! 2 = Planar |
90 | //! 3 = Non-planar |
91 | Standard_EXPORT Standard_Integer NbDimensions() const; |
92 | |
93 | //! returns the number of segments |
94 | Standard_EXPORT Standard_Integer NbSegments() const; |
95 | |
96 | //! returns breakpoint of piecewise polynomial |
97 | //! raises exception if Index <= 0 or Index > NbSegments() + 1 |
98 | Standard_EXPORT Standard_Real BreakPoint (const Standard_Integer Index) const; |
99 | |
100 | //! returns X coordinate polynomial for segment referred to by Index |
101 | //! raises exception if Index <= 0 or Index > NbSegments() |
102 | Standard_EXPORT void XCoordPolynomial (const Standard_Integer Index, Standard_Real& AX, Standard_Real& BX, Standard_Real& CX, Standard_Real& DX) const; |
103 | |
104 | //! returns Y coordinate polynomial for segment referred to by Index |
105 | //! raises exception if Index <= 0 or Index > NbSegments() |
106 | Standard_EXPORT void YCoordPolynomial (const Standard_Integer Index, Standard_Real& AY, Standard_Real& BY, Standard_Real& CY, Standard_Real& DY) const; |
107 | |
108 | //! returns Z coordinate polynomial for segment referred to by Index |
109 | //! raises exception if Index <= 0 or Index > NbSegments() |
110 | Standard_EXPORT void ZCoordPolynomial (const Standard_Integer Index, Standard_Real& AZ, Standard_Real& BZ, Standard_Real& CZ, Standard_Real& DZ) const; |
111 | |
112 | //! returns the value of X polynomial, the values of 1st, 2nd and |
113 | //! 3rd derivatives of the X polynomial at the terminate point |
114 | Standard_EXPORT void XValues (Standard_Real& TPX0, Standard_Real& TPX1, Standard_Real& TPX2, Standard_Real& TPX3) const; |
115 | |
116 | //! returns the value of Y polynomial, the values of 1st, 2nd and |
117 | //! 3rd derivatives of the Y polynomial at the termminate point |
118 | Standard_EXPORT void YValues (Standard_Real& TPY0, Standard_Real& TPY1, Standard_Real& TPY2, Standard_Real& TPY3) const; |
119 | |
120 | //! returns the value of Z polynomial, the values of 1st, 2nd and |
121 | //! 3rd derivatives of the Z polynomial at the termminate point |
122 | Standard_EXPORT void ZValues (Standard_Real& TPZ0, Standard_Real& TPZ1, Standard_Real& TPZ2, Standard_Real& TPZ3) const; |
123 | |
124 | |
125 | |
126 | |
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127 | DEFINE_STANDARD_RTTIEXT(IGESGeom_SplineCurve,IGESData_IGESEntity) |
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128 | |
129 | protected: |
130 | |
131 | |
132 | |
133 | |
134 | private: |
135 | |
136 | |
137 | Standard_Integer theType; |
138 | Standard_Integer theDegree; |
139 | Standard_Integer theNbDimensions; |
140 | Handle(TColStd_HArray1OfReal) theBreakPoints; |
141 | Handle(TColStd_HArray2OfReal) theXCoordsPolynomial; |
142 | Handle(TColStd_HArray2OfReal) theYCoordsPolynomial; |
143 | Handle(TColStd_HArray2OfReal) theZCoordsPolynomial; |
144 | Handle(TColStd_HArray1OfReal) theXvalues; |
145 | Handle(TColStd_HArray1OfReal) theYvalues; |
146 | Handle(TColStd_HArray1OfReal) theZvalues; |
147 | |
148 | |
149 | }; |
150 | |
151 | |
152 | |
153 | |
154 | |
155 | |
156 | |
157 | #endif // _IGESGeom_SplineCurve_HeaderFile |