huskmate13 - 2013-12-12

I'm importing a dxf file containing lot of 3DFACEs. This entities get converted in BOTs. BOTs doesn't seem to have any flag to indicate that one or more edges are invisible. I tried to use both rt_bot_tess() and rt_bot_plot() but the result doesn't change, i see the drawing but i also get to see tons of diagonals that in the original dxf file are not present.
Is there any solution?
bye