Description Data structure for definition of Importance Sampling Ellipsoidal volume.
Definition Type T_IMPSAMPELLIPSOID x As Double y As Double z As Double a1 As Double b1 As Double c1 As Double a2 As Double b2 As Double c2 As Double semiApe1 As Double semiApe2 As Double semiApe3 As Double entity As Long End Type
Members x The X component of the center of the ellipsoid.
y The Y component of the center of the ellipsoid.
z The Z component of the center of the ellipsoid.
a1 x component of the direction vector for the first axis of the ellipsoid.
b1 y component of the direction vector for the first axis of the ellipsoid.
c1 z component of the direction vector for the first axis of the ellipsoid.
a2 x component of the direction vector for the second axis of the ellipsoid.
b2 y component of the direction vector for the second axis of the ellipsoid.
c2 z component of the direction vector for the second axis of the ellipsoid.
semiApe1 Semi-aperture of the ellipsoid in the first axis direction.
semiApe2 Semi-aperture of the ellipsoid in the second axis direction.
semiApe3 Semi-aperture of the ellipsoid in the third axis direction.
entity The node number of the FRED entity whose coordinate system will orient the ellipsoid.
Remarks The first and second axis vectors do not have to be unit length. If the second axis is not exactly perpendicular to the first, then it will be rotated so that it is. The third axis vector will be automatically computed to be mutually perpendicular to the first two.
Used as Parameter in Examples
|