If you create a Geotiff using ENVI (for example of a DEM) and then try and load that Geotiff into the Geotiff viewer, the viewer crashes with no error message (just produces a Bugzilla window).

Default bands in the bil.hdr are hard coded such that they always assume the full range of bands is used. This causes errors in ENVI when it tries to load the bil file.

basically the quad tree will contain buckets containing different resolutions. the quadtree will still be built at full resolution (or whatever resolution is specified in the constructor. the user will be able to request buckets from subset that contain a lower resolutions. This will mitigate the fact that as buckets are chached as a whole the entire bucket must be cached to access only a single or few points.