A while ago (a few months?) someone posted a link to an online calculator that would create contour plots on different microphone configurations.

You could input the type of pattern on the microphone, the angle, and the position. It would graph the power as a contour plot, as well as show the left to right balance and a number of other statistics.

I've been searching different keywords and can't seem to find it.

Does anyone have a link to this?