4 Creating and Editing NURB Curves

4 Q3NURBCurve_GetControlPoint

You can use the Q3NURBCurve_GetControlPoint function to get a four-dimensional control point for a NURB curve.

TQ3Status Q3NURBCurve_GetControlPoint (
TQ3GeometryObject curve, 
unsigned long pointIndex, 
TQ3RationalPoint4D *point4D);
curve A NURB curve.
pointIndex An index into the controlPoints array of control points for the specified NURB curve.
point4D On exit, the control point having the specified index in the controlPoints array of control points for the specified NURB curve.

DESCRIPTION


The Q3NURBCurve_GetControlPoint function returns, in the point4D parameter, the four-dimensional control point of the NURB curve specified by the curve parameter having the index in the array of control points specified by the pointIndex parameter.

DESCRIPTION

3D Graphics Programming with QuickDraw 3D - 21 OCT 1995

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