To create this type of plot, the data needs to be converted to x-y coordinates, similar to a polar plot.
The conversion to x-y coordinates is as follows:
x = r * cos(θ)
y = r * sin(θ)
where
θ = angle in radians
r = radius from the center
We updated our older template and added two new templates that you can find now in the example files. The Basic Spider file has all the equations set up along with two sliders to adjust the plot. This would be a good place to start to see how the plot is constructed. The Spider plot template has more sliders to give you more options for adjusting the plot along with more data.
Please let us know if these files are helpful or you need something different.