Ortographic projection of a model to curves

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Hi everyone,

I'm trying to develop a setup to orthographically project a model and get the results as polylines in the same fashion CAD software renders technical drawings. It would be as if viewing a model in the viewport while in wireframe mode, and taking a snapshot of that but as geometry, if that makes sense.
I'm currently struggling with the implementation. Especially with silhouette lines occluding one another, adding points where they might be partially intersecting and how to cull them based on their distance to the camera.

Any help would be greatly appreciated.
Thanks a lot
Yoann
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I been using this ...can't post the Link Sidefx Rules
search "qiita Houdini advent Calendar 2017" and search inside that Site for "wren Houdini" , its only one Topic ..

Perfect result
Conservation of Momentum
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That’s pretty cool thanks a lot mate! I’ll give it a shot soon.
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