サーフェイスメッシュがオプションであるか（true）ないか（false）を示すBoolean値を戻します。
set oObject = Application.ActiveProject.ActiveScene.Root.AddGeometry("Sphere","NurbsSurface")
set oNurbsSurfaceMesh = oObject.ActivePrimitive.Geometry
set oUKnots = oNurbsSurfaceMesh.Surfaces(0).Knots(siUDirection)
if oUKnots.Closed then
logmessage "NurbsSurface is closed in U"
end if
|