Bezitopo version 0.1.2 has been released.
Here are the contours of Independence Park. Bezitopo can save the scene to a file (file format in progress), but can't load it yet.
Here is the geoid file compressed from all six NGS 2012 data files. The tolerance is 30 mm; the subdivision limit is 1 km. Bezitopo needs this file to compute elevation factors. (Grid factors require map projections, which are in progress.)
Contour generation is working correctly. Note that some discrepancies between the traced contours and the false-color elevation map are not bugs: as long as the elevation is within 1/10 of the contour interval (i.e. within 1 cm), the contours are correct.