Flipping the edge of a triangles.

[dangminhquang0411]

Hello everyone and administrator,

I would like to flip the edge of a triangle in CloudCompare, but I don't know the steps to do it. I would appreciate it if you could guide me. Thank you very much.

[daniel]

Well, you just need to select a mesh entity in the DB tree (and make sure to select the mesh, and not the folder that contains it).

[dangminhquang0411]

Hi Daniel,

I have created a grid that forms a triangular mesh as shown in the image below. After that, the "flip triangles" tool appeared, but I don't know how to flip the edges of the triangles. I hope you can help me. Thank you very much.

[daniel]

Oh, so that may not be very clear, but the 'flip' operation is simply made on the vertex indexes (so as to have triangles described as ACB internally, instead of ABC for instance). That's important when automatically per-triangle normals for instance.