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This node defines a NURBS curve that is derived from a NURBS surface isoparm. The isoparm is defined by the "isoparmValue" and "isoparmDirection" attributes. If the direction is "U", then the isoparm is along the U direction, ie. V = isoParmValue. If the direction is "V", then the isoparm is along the V direction, ie. U = isoparmValue.

You can query the minValueU, minValueV, maxValueU, maxValueV attributes of the input surface to determine the minimum and maximum parameter values of the surface.

Node nameParentsClassificationMFn typeCompatible function sets

Related nodes

curveFromMesh, curveFromMeshEdge, curveFromSurface, curveFromSurfaceCoS, curveFromSurfaceBnd, curveInfo

Attributes (3)

isoparmDirection, isoparmValue, relativeValue

Long name (short name)TypeDefaultFlags
isoparmValue (iv) double0.0outputinputconnectablestorablekeyable
Parameter value for the isoparm
isoparmDirection (idr) enum0outputinputconnectablestorablekeyable
Isoparm direction: 0 for U, 1 for V
relativeValue (rv) boolfalseoutputinputconnectablestorable
True means use a relative parameter range for values, from 0.0 to 1.0. Otherwise, the parameter values are absolute values.