Fast Winding Number Field for Coverage Axis and Coverage Axis++. https://github.com/Frank-ZY-Dou/Coverage_Axis

More instructions: https://github.com/Frank-ZY-Dou/Coverage_Axis#point-cloud-input

This repo will give two programs.

You will find an executable file 807_FastWindingNumber in the folder bin. This is a tutorial program.
You can run it by

./807_FastWindingNumber

Press "1" twice to toggle between viewing the polygon soup and the point cloud.

This is our case. Please remember to put the 01Ants-12_mesh_ori_pc.obj in to the bin folder too.

./807_FastWindingNumber_CA ./01Ants-12_mesh_ori_pc.obj  ./01Ants-12_mesh_inner_points.obj

Visulization: Press "1" to view the point cloud.

Press "2" twice to toggle between viewing the full query point cloud and the point cloud identified within the volume.

Documentation, tutorial, and instructions at https://libigl.github.io.