How can I plot the same output without default pattern function?

In Phased Array Toolbox, pattern function helps me plot the 3D response pattern. But I want to know how it is done and can someone teach me how to draw this?

I can only give out this outcome.

Answer 1

[AKennedy]

You can take a look at this example: https://www.mathworks.com/help/phased/ug/array-pattern-synthesis.html#ArraySynthesisExample-2

It walks you through the steps, and I hope it answers what you are looking for.