Re: [gts-general] Re: removed faces

[Ray J. <rj...@po...>]

MALIHEH DASHTI <mal...@ya...> writes:

> What do you suggest me to do for removing the zero faces, as they
> cause my other functions to give incorrect results?

I believe what you want to do is collapse the shortest edge of
below-epsilon-area faces (use gts_segment_midvertex() and
gts_vertex_replace()), then clean up duplicate edges with
gts_edges_merge().  

The code in examples/cleanup.c should help guide you.  In fact, you
may just want to modify cleanup.c to change the criteria under which
vertices are merged.  Currently, if two vertices are within epsilon,
they're merged, and everything else is cleaned up following vertex
merges.  Instead, you could mark vertices for merging based on
triangle area.

You might need to be careful in looping over faces and such to make
sure you don't try to merge two vertices twice, or remove a face
twice.  This shouldn't complicate things too much, though.

Good luck,
Ray Jones