I got this to work with Unfolding in processing-2.2.1. I used Interactive Computer Ephemeris from USNO to calculate for 39.21N, -77.21W and used Dubhe, Arcturus, Betelgeuse. I entered the GHA,dec,alt for each by writing it into the code instead of using the sliders, to see how well my code works with Unfolding and it works fairly nicely, except the more you zoom the points dont show well. When I use the sliders, there is mlles/kilometers of slop. Here’s a shot of a “fix” in Unfolding.
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