Hello! This is not particularly sundial-related but: can you create an oblique azimuthal equidistant projection solely by technical drawing in Delta Cad? I understand that David Chandler's planisphere uses such a projection in both southern and northern face and it looks great.
http://www.davidchandler.com/products/planispheres-star-charts/ While I am familiar to the stereographic projection used for the climates of astrolabes, I have no idea how to go about on creating an oblique azimuthal for generating the horizon line in a planisfere such as Chandler's. Polar equal azimuthal for the starmap seems fairly easy to do. I would appreciate it if you can help while keeping math to a minimum :) Dan Uza
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