Changelog

celutz-2.0.0 (unreleased)

New home for the project: https://code.ffdn.org/FFDN/celutz.
First release with a brand new backend, completely rewritten in Django.
Distances are now computed as straight-line distance, instead of great-circle distance. This should mostly matter for points that are very close together, but with different altitudes.
The URL of the panorama view acts as an auto-generated permalink (à la openstreetmap.org).
Existing panoramas can be used as reference points as well.
Tile generation is now done in pure Python, instead of the existing shell script that used Imagemagick's convert tool.
"Locate a point" feature, allowing to quickly locate a point on all relevant panoramas simultaneously.

The map (and related features) are not yet integrated in this new version.

Between March 2013 and February 2015, lots of improvements:

Allow to calibrate the panorama directly from the web interface, by simply clicking on the picture to add reference points. This is done with AJAX requests.
Add a map displaying the panoramas.
Allow to draw a line on the map by pointing at a direction in a panorama. This can be very useful to pinpoint an unknown building in a picture, because the line on the map gives a good indication of the location of the building.
Make the code less specific to tetaneutral.net.