Convex Hull result is not shown correctly

[xxxdomi]

Hello! :-)

Currently, I am making some experiments with your convex hull lib.

When I try your eifelturm sample, this works perfectly, as you can seen in the following pictures.

Orig

Convex Hull

If I try to simplify another CAD like this one (monkey head) below, it does not output the result that i am expect. What do you think - is it a problem of your algorithm, or is this probem somewhere else?

Orig:

Convex Hull

Thanks in adavance, Dominik

suzanne.zip

[massonib]

Dominik, that is the correct convex hull. The issue is with your tessellation/viewer dropping triangles and perhaps not seeing it at the correct orientation. Here is an image of your part with the convex hull wrapped around it, created using TVLG (https://github.com/DesignEngrLab/TVGL), I should also mention that your model is not a proper tessellation and may cause some issues in TVGL and other such model tessellation manipulators.

[micampbell]

Thanks @massonib. The tessellation error should not affect the accuracy of the convex hull since convex hull only uses vertex information.