http://docs.mitk.org/nightly/classmitk_1_1BaseGeometry.html#af1a74002743544c0e8eb2d811c9bbbd5

The xFront, yFront, zFront arguments are interpreted in voxel space, not physical space. That means, "true, true, true" arguments will give the coordinates of the voxel with "0, 0, 0" index. Similarly, "false, false, false" arguments will *not* give you the bottom-back-left corner that is the origin. (Unless the updirection is -1 for each axis.)

This is not necessarily a bug, although I found the behaviour/naming counter-intuitive. Maybe it could be made more clear in the documentation that the arguments refer to voxel-space, or the arguments could be named differently.