Hi,

if you add a face and get this warning, the face will not be actually
added to the mesh. You will receive an invalid face handle as the return
value of the add_face function. Therefore you do not have to remove
anything.

Regards,
Jan Möbius

On 10/26/23 10:41, btyukodi@brandeis.edu wrote:
> The function add_face uses 3 ordered VertexHandle to add a face to the mesh. If the order of vertices is incompatible with the existing mesh (so that the face would be wrongly oriented) or a triangle already exists with those 3 vertices, this is the typical warning OpenMesh gives:
>
> PolyMeshT::add_face: complex edge
>
> I was wondering if it is possible to test whether a face addition would result in such complex edge warning and skip the addition if it would? I'm thinking some kind of try-catch block. Alternatively, how can I remove the face that caused such an incompatibility?
>
> Note that here my aim is not to properly orient the new face. I simply do not want to add it if it causes incompatibilities.
>
> Thank you and all the best,
> Botond
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--
Dr. Jan Möbius
Visual Computing Institute
RWTH Aachen University
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