We only support point clouds in the KITTI format, i.e., your data should have a specific folder structure (see https://github.com/jbehley/point_labeler#folder-structure), poses in the poses.txt in the KITTI format and format of the point clouds, i.e., binary with float values. However, you can also rewrite the KITTIReader to read other point clouds.

I'm wondering that the icons are not shown and the labels.xml is not populating the label buttons. Ensure that you run the program from the bin folder inside the project folder, such that it can find the correct paths (which are relative to the bin folder).

Thank you very much for answering my question so quickly!

hmm, actually the reason cause some elements of gui disappeared is the following code in repo

  std::string assertDir = QDir::currentPath().toStdString() + "/../assets/";

I run the following cmd in terminal, so I guess the code can not load these elements correctly.

./src/point_labeler/bin/labeler

Run this cmd, everything will be ok.

./labeler

Good, then everything works as expected? is the issue then solved?

Yes. Thanks very much.