Hidden line removal progress

 From:  wastzzz
6201.288 
I noticed few difference in accuracy between MoI's hidden line removal and Rhino's Make2D command.
I am attaching an example of the same 3D model.
MoI output is not bad, but Rhino's one is more accurate (lines are touching and it allows me to use hatching later).
Canvas size was 70. Anyways I'm pretty fine with the MoI output, but could you explain me how the hidden line removal algorithms of MoI and Rhino are different? Are they using a different approach?
Is it possible in the future to improve the hidden line feature to get better results at corners/touching lines?
It's just my own curiosity.

MoI:


Rhino:


Thank you.
M.
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