OpenMesh

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openmesh@lists.rwth-aachen.de

October 2023

2 participants
2 discussions

OpenMesh with OpenMP
by LuWang (Jack) 13 Dec '23

13 Dec '23

Hello Madam or Sir, I am the user of OpenMesh, and I want ask some questions about the parallel code with OpenMesh, exactly, the parallel code is based on OpenMP on the VS2013. The first question: When I use the OpenMP on the VS2013 to speed up the program which write with OpenMesh, for example, I add the code: #pragma omp parallel for num_threads(7) , just like the following: and the errors follow, and I do not know why. and the second question: Could the code with iterator of OpenMesh be paralleled by OpenMP just like " for (TriMesh::FaceIter f_it = mesh.faces_begin(); f_it != mesh.faces_end(); f_it++) " in the above picture? or How can I parallel the code with iterator of OpenMesh? Thank you for your time! And I am looking forward to your reply. Sincerely LuWang

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Is there a way to test whether adding a new face would result in
by btyukodi＠brandeis.edu 26 Oct '23

26 Oct '23

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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