3d plotting

[rstiles]

I'm having issues plotting a 3d hidden wire frame. it looks how i want but the tangent lines on a cylinder are missing. any help would be appreciated.

[bcgatti]

I'm not sure if this is what you are looking for, but the system variable VSEDGES controls whether Isolines, Facets or no edges are displayed in a view.

[rstiles]

no that did not help.

i did notice when i sent 2 copies. it skips different lines every time. so it shoes the top ellipse and the bottom half ellipse but will not show the vertical lines.