[ REQ 5231]: Re: hidden lines

[zedai at westley.civil.nwu.edu]

> The closest you can get to hidden-line removal is the following.
> Select "Constant" shading on the Appearance panel.  Leave faces turned on.
> Set the Face Color to be the same as the camera background color.

the problem is: when I print it out on PS printer (after saving it to a PS
file), the color of faces is always the same disregarding to the background's
color. That is, the printout and the picture on screen are different. I can't
just keep the edges but hidden the faces. My question is: I want to use .off
file by inputing coords of nodes, number of nodes per plane, and then get
the mesh output for a rock block model. There should be only intersection
lines on the surface of rock block with hidden lines removal function, and
the mesh is irregular (not rectangular grid) which depands on the cut plane
and the plane may be several hundred and the nodes may be more than 2000.
Thank you for your help.

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zedai at max.civil.nwu.edu