ed.nisley at pobox.com
Wed Sep 5 10:46:01 EDT 2018
On 09/04/2018 09:02 PM, FourthDr wrote:
> They both look and preview fine.
Meshlab shows both have the usual assortment of mesh errors and are
non-manifold: hot death on a stick for further operations.
My (admittedly limited) experience with automatic mesh repair suggests
the algorithms generally make the choices I expect, but sometimes
produce weirdly shaped patches, if not completely bizarre shapes, around
the non-manifold geometry. The fact a "repaired" STL file still contains
geometry errors shows the automation doesn't always get it right.
Agreed, OpenSCAD shouldn't fall over dead when handed a broken STL file,
but AFAICT the explosion happens deep in the CGAL machinery where it's
out of anyone's control. The only defense seems to be not handing it
Which rules out many attractive STLs scattered around the Interwebs ...
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