VS:NurbsKnot: Difference between revisions
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Latest revision as of 14:35, 12 August 2013
.VectorScript|VectorScript ..VS:Function Reference|Function Reference ..VS:Function_Reference_Appendix|Appendix
Description
Returns the specified knot in a NURBS curve or surface.
For NURBS curves, index1 corresponds to the segment of the curve to be queried, and index2 corresponds to the knot in the segment.
For NURBS surfaces, index1 corresponds to the u- or v-direction of the surface (u=1, v=0), and index2 corresponds to the knot index.
The index is zero based (0 to number of knots - 1).
PROCEDURE NurbsKnot(
objectHd :HANDLE;
index1 :LONGINT;
index2 :LONGINT;
VAR knot :REAL);
def vs.NurbsKnot(objectHd, index1, index2): return knot
Parameters
objectHd HANDLE Handle to NURBS curve or surface. index1 LONGINT Segment of curve to be queried (NURBS curve), or direction (NURBS surface). index2 LONGINT Index of segment or direction knot. knot REAL Knot value.
Remarks
this function will work for both nurbs curves and nurbs surfaces
Example
VectorScript
See NurbsSurfaceEvalPt
Python
Version
Availability: from VectorWorks9.0