Type Type of object. UserData User-specified data. Any matrix you want to associate with the surface object. The object does not use this data, but you can retrieve it using the get command . Visible Surface visibility.
Surface is visible on the screen.
XData X -coordinates of surface points. X -position of the surface points. If a row vector, surface replicates the row until XData has the same number of rows as ZData . YData Y -coordinates of surface points. Y -position of the surface points.