VS:CreateNurbsSurface
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Description
Creates a new NURBS surface in the document. The surface has two directions, denoted u and v. The surface acts like a set of NURBS curves in each direction, with the number of control points and the degree specified in the parameter list. (Note that the degree parameters have to be lower than the numPts parameters.)
After creating the surface, you must set the location of each of the control points with NurbsSetPt3D, and when you are done call ResetBBox to make sure the bounding box is correct.
FUNCTION CreateNurbsSurface(
numUPts :LONGINT;
numVPts :LONGINT;
uDegree :INTEGER;
vDegree :INTEGER) : HANDLE;
def vs.CreateNurbsSurface(numUPts, numVPts, uDegree, vDegree): return HANDLE
Parameters
numUPts LONGINT The number of definition points along the u-axis of the surface. numVPts LONGINT The number of definition points along the v-axis of the surface. uDegree INTEGER Degree of the NURBS curve in the u direction. vDegree INTEGER Degree of the NURBS curve in the v direction.
Return Value
Returns a HANDLE to the newly created NURBS surface object if successful, otherwise returns NIL.
Remarks
returns a handle to the newly created NURBS surface if it succeeds, return NULL if it fails
Creates a NURBS surface with the number of control points and degrees as specified. Call NurbsSetPt3D() to set the control net
Example
VectorScript
PROCEDURE Example; VAR h :HANDLE; BEGIN h := CreateNurbsSurface(3, 3, 1, 1); NurbsSetPt3D(h, 0, 0, 0, 0, 0); NurbsSetPt3D(h, 0, 1, 1, 0, 0); NurbsSetPt3D(h, 0, 2, 2, 0, 0); NurbsSetPt3D(h, 1, 0, 0, 1, 0); NurbsSetPt3D(h, 1, 1, 1, 1, 1); NurbsSetPt3D(h, 1, 2, 2, 1, 0); NurbsSetPt3D(h, 2, 0, 0, 2, 0); NurbsSetPt3D(h, 2, 1, 1, 2, 0); NurbsSetPt3D(h, 2, 2, 2, 2, 0); ResetBBox(h); END; RUN(Example);
Python
def Example(): h = vs.CreateNurbsSurface(3, 3, 1, 1) vs.NurbsSetPt3D(h, 0, 0, 0, 0, 0) vs.NurbsSetPt3D(h, 0, 1, 1, 0, 0) vs.NurbsSetPt3D(h, 0, 2, 2, 0, 0) vs.NurbsSetPt3D(h, 1, 0, 0, 1, 0) vs.NurbsSetPt3D(h, 1, 1, 1, 1, 1) vs.NurbsSetPt3D(h, 1, 2, 2, 1, 0) vs.NurbsSetPt3D(h, 2, 0, 0, 2, 0) vs.NurbsSetPt3D(h, 2, 1, 1, 2, 0) vs.NurbsSetPt3D(h, 2, 2, 2, 2, 0) vs.ResetBBox(h) Example()
Version
Availability: from VectorWorks9.0
See Also
VS Functions: