The reader reads a couple of floats from a file. I could not find any locale handling.

It is probable that the reader reads wrong spacings etc. on systems that have a
german environment (handling of . or ,).

This should be tested manually with a coule of appropriate files.

A test case should verify correct behavior with some tiny reference file.

If the test case fails, the reader should be corrected.

Similar example test cases can be found in the module SceneSerialization and in
some PointSetReader/Writer tests.