initBounds() creates wrong limits of bounding box. Min vec instead of max vec and vice versa.
BBoxMin =
BBoxMax =
H9.1.144

It is done this way so that enlargeBounds() doesn't need special cases. If it was reversed, then you'd get a very LARGE bounding box initially, instead of an invalid one. If you really want them reversed, then call initMaxBounds() instead.

PS. There's comments in the header …

Now it's clear edward. Thanks.