blob: 4117054dfc17fcb2032ff990b6e4b9112b533ed0 (
plain)
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
|
//File gp_Elips2d.cxx FID 30/10/90
//Modif JCV 10/01/91
#include <gp_Elips2d.ixx>
void gp_Elips2d::Coefficients (Standard_Real& A,
Standard_Real& B,
Standard_Real& C,
Standard_Real& D,
Standard_Real& E,
Standard_Real& F) const
{
Standard_Real DMin = minorRadius * minorRadius;
Standard_Real DMaj = majorRadius * majorRadius;
if (DMin <= gp::Resolution() && DMaj <= gp::Resolution()) {
A = B = C = D = E = F = 0.0;
}
else {
gp_Trsf2d T;
T.SetTransformation (pos.XAxis());
Standard_Real T11 = T.Value (1, 1);
Standard_Real T12 = T.Value (1, 2);
Standard_Real T13 = T.Value (1, 3);
if (DMin <= gp::Resolution()) {
A = T11 * T11; B = T12 * T12; C = T11 * T12;
D = T11 * T13; E = T12 * T13; F = T13 * T13 - DMaj;
}
else {
Standard_Real T21 = T.Value (2, 1);
Standard_Real T22 = T.Value (2, 2);
Standard_Real T23 = T.Value (2, 3);
A = (T11 * T11 / DMaj) + (T21 * T21 / DMin);
B = (T12 * T12 / DMaj) + (T22 * T22 / DMin);
C = (T11 * T12 / DMaj) + (T21 * T22 / DMin);
D = (T11 * T13 / DMaj) + (T21 * T23 / DMin);
E = (T12 * T13 / DMaj) + (T22 * T23 / DMin);
F = (T13 * T13 / DMaj) + (T23 * T23 / DMin) - 1.0;
}
}
}
void gp_Elips2d::Mirror (const gp_Pnt2d& P)
{ pos.Mirror(P); }
gp_Elips2d gp_Elips2d::Mirrored (const gp_Pnt2d& P) const
{
gp_Elips2d E = *this;
E.pos.Mirror (P);
return E;
}
void gp_Elips2d::Mirror (const gp_Ax2d& A)
{ pos.Mirror(A); }
gp_Elips2d gp_Elips2d::Mirrored (const gp_Ax2d& A) const
{
gp_Elips2d E = *this;
E.pos.Mirror (A);
return E;
}
|
