About parameters of get_ points_ from_ Angles function

[Lucklycat]

I want to know parameters of get_ points_ from_ Angles function what does it represent? i can the parameters is distance，elevation, azimuth，I want to know how it corresponds to the camera parameters in the real renderer。 Because when I use a picture rendered by a software similar to blender as the training target, I don't know how to set the parameters of this function. I hope you can give me some advices.