[sample/mesh_sampling.cpp] Cannot sample the number of points I want

[qinglew]

Description

I compiled this code successfully and got a executable file mesh_sampling. After I running the command ./mesh_sampling -h, it shows that -n_samples is the option of the number of points to sample. But When I run the command ./mesh_sampling input.obj output.pcd -n_samples 16384, it cannot generate 16384 points in the output pcd file. Generally, the number of points in output point cloud is less than I want. The ground truth you mentioned in paper has 16384 points. How do you get 16384 points by this tool?

Environment

• Ubuntu 18.04 LTS
• GCC 7.5.0
• VTK 9.0.1

[kevin-so]

I ran into this issue earlier this week. For posterity, the way I fixed it was by either reducing the leaf_size, or running with the no_vox_filter flag , which prevents the pcd from getting downsampled.