Inside Macintosh: 3D Graphics Programming With QuickDraw 3D /

Chapter 4 - Geometric Objects / Geometric Objects Reference

Geometric Objects Routines / Creating and Editing NURB Patches

Q3NURBPatch_SetVKnot

You can use the Q3NURBPatch_SetVKnot function to set the value of a knot in the v parametric direction.

TQ3Status Q3NURBPatch_SetVKnot (
TQ3GeometryObject nurbPatch, 
unsigned long knotIndex, 
float knotValue);

nurbPatch

A NURB patch.

knotIndex

An index into the vKnots field of the specified NURB patch.

knotValue

The desired value of the specified knot.

DESCRIPTION

The Q3NURBPatch_SetVKnot function sets the knot value of the NURB patch specified by the nurbPatch parameter having the knot index specified by the knotIndex parameter in the vKnots array of v knots to the value specified by the knotValue parameter.