[tombh]

The AEQD projection radiates from the anchor right? Is that what you mean by polar coordinates? This was my first foray into optimising projections so if you have any insight I'd love to learn.

If you know anything about QGIS plugins please feel free to make a brief write up in our issues https://github.com/AllTheLines/viewview/issues

[cozzyd]

I just mean that you only need it evaluated at the points along the azimuths you consider, but maybe that doesn't make sense computationally and it's faster to interpolate from a grid anyway.

I might create an issue after I conceptualize what it might look like more!