I don`t know how to render the line black with ldview in lpub3d

[Travis Cobbs]

I want to render part transparent with black line ,but the line can not show a Correct color with black line when the parts overlap.I tried everything I could ,but didn`t work

A few things:

1. I can't really tell what is going on with your geometry (which is of course a bad thing). Do the parts overlap, or is one in front of the other?
   
2. Verify that things look the same when you open the file directly in LDView. It's possible that the problem is related to how LDView creates PNG image with transparent portions.
   
3. If you disable the "Antialiased lines" setting, the edge lines hidden by transparent polygons become a bit more distinct, although this also decreases the quality of all the other lines.
   
4. No matter what else you do, the lines that are in the back are supposed to be less visible than the ones in the front, because the transparent surface is drawn over them.