6.7.7 NUBLBIS (b, m)

Creates a bicubic nurbs surface with 3 dimensional euclidian control points which interpolates a matrix of data points m by Local Bicubic Interpolation. If the flag b is not zero the algorithm is corner preserving, else corners are smoothed.

b is a number node, and m is a typeless node to which the rows of the matrix of data points are connected.

In the C++ class hierarchy the class created by the NUBLBIS keyword is derived from a general trimmed nurbs surface class (see TNURBSURF, 6.7.22), so that it can be used at any places where a trimmed nurbs surface is expected (with the same number format and control point type of course)

The following variations of this keyword exist (some of them define the same internal structures, and are only defined to allow consistent naming conventions):

Keyword	numbers
NUBLBIS	float
NUBLBIS_F	float
NUBLBIS_D	double
NUBLBIS_F_E3	float
NUBLBIS_D_E3	double