1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
|
//--------------------------------------------------------------------
//
// File Name : IGESGeom_BSplineCurve.cxx
// Date :
// Author : CKY / Contract Toubro-Larsen
// Copyright : MATRA-DATAVISION 1993
//
//--------------------------------------------------------------------
#include <IGESGeom_BSplineCurve.ixx>
#include <Standard_OutOfRange.hxx>
#include <gp_GTrsf.hxx>
IGESGeom_BSplineCurve::IGESGeom_BSplineCurve () { }
void IGESGeom_BSplineCurve::Init
(const Standard_Integer anIndex,
const Standard_Integer aDegree, const Standard_Boolean aPlanar,
const Standard_Boolean aClosed, const Standard_Boolean aPolynom,
const Standard_Boolean aPeriodic,
const Handle(TColStd_HArray1OfReal)& allKnots,
const Handle(TColStd_HArray1OfReal)& allWeights,
const Handle(TColgp_HArray1OfXYZ)& allPoles,
const Standard_Real aUmin, const Standard_Real aUmax,
const gp_XYZ& aNorm)
{
if (!allPoles.IsNull()) {
if (allPoles->Length() != allWeights->Length())
Standard_DimensionMismatch::Raise("IGESGeom_BSplineCurve : Init");
if (allKnots->Lower() != -aDegree || allKnots->Upper() != anIndex+1 ||
allWeights->Upper() != anIndex ||
allWeights->Lower() != 0 || allPoles->Lower() != 0)
Standard_DimensionMismatch::Raise("IGESGeom_BSplineCurve : Init");
}
theIndex = anIndex;
theDegree = aDegree;
isPlanar = aPlanar;
isClosed = aClosed;
isPolynomial = aPolynom;
isPeriodic = aPeriodic;
theKnots = allKnots;
theWeights = allWeights;
thePoles = allPoles;
theUmin = aUmin;
theUmax = aUmax;
theNorm = aNorm;
InitTypeAndForm(126,FormNumber());
// FormNumber precises the shape 0-5
}
void IGESGeom_BSplineCurve::SetFormNumber (const Standard_Integer form)
{
if (form < 0 || form > 5) Standard_OutOfRange::Raise
("IGESGeom_BSplineCurve : SetFormNumber");
InitTypeAndForm(126,form);
}
Standard_Integer IGESGeom_BSplineCurve::UpperIndex () const
{
return theIndex;
}
Standard_Integer IGESGeom_BSplineCurve::Degree () const
{
return theDegree;
}
Standard_Boolean IGESGeom_BSplineCurve::IsPlanar () const
{
return isPlanar;
}
Standard_Boolean IGESGeom_BSplineCurve::IsClosed () const
{
return isClosed;
}
Standard_Boolean IGESGeom_BSplineCurve::IsPolynomial
(const Standard_Boolean flag) const
{
if (flag || theWeights.IsNull()) return isPolynomial;
Standard_Integer i, i1 = theWeights->Lower(), i2 = theWeights->Upper();
Standard_Real w0 = theWeights->Value(i1);
for (i = i1+1; i <= i2; i ++)
if (Abs (theWeights->Value(i) - w0) > 1.e-10) return Standard_False;
return Standard_True;
}
Standard_Boolean IGESGeom_BSplineCurve::IsPeriodic () const
{
return isPeriodic;
}
Standard_Integer IGESGeom_BSplineCurve::NbKnots () const
{
return (theKnots.IsNull() ? 0 : theKnots->Length());
}
Standard_Real IGESGeom_BSplineCurve::Knot
(const Standard_Integer anIndex) const
{
return theKnots->Value(anIndex);
}
Standard_Integer IGESGeom_BSplineCurve::NbPoles () const
{
return (thePoles.IsNull() ? 0 : thePoles->Length());
}
Standard_Real IGESGeom_BSplineCurve::Weight
(const Standard_Integer anIndex) const
{
return theWeights->Value(anIndex);
}
gp_Pnt IGESGeom_BSplineCurve::Pole (const Standard_Integer anIndex) const
{
gp_XYZ tempXYZ = thePoles->Value(anIndex);
gp_Pnt Pole(tempXYZ);
return Pole;
}
gp_Pnt IGESGeom_BSplineCurve::TransformedPole
(const Standard_Integer anIndex) const
{
gp_XYZ tempXYZ = thePoles->Value(anIndex);
if (HasTransf()) Location().Transforms(tempXYZ);
gp_Pnt Pole(tempXYZ);
return Pole;
}
Standard_Real IGESGeom_BSplineCurve::UMin () const
{
return theUmin;
}
Standard_Real IGESGeom_BSplineCurve::UMax () const
{
return theUmax;
}
gp_XYZ IGESGeom_BSplineCurve::Normal () const
{
return theNorm;
}
|
