I think of the angles as longitude and latitude. The height of a point (its Y coordinate) can be computed from the latitude alone, and it's something like sin(latitude). The other two coordinates will be cos(latitude)*cos(longitude) and cos(latitude)*sin(longitude). Figure out which is which, and perhaps you need to flip a sign, depending on your convention. It should be easy to figure out with those hints.

I think of the angles as longitude and latitude. The height of a point (its Y coordinate) can be computed from the latitude alone, and it's something like sin(latitude). The other two coordinates will be cos(latitude)*cos(longitude) and cos(latitude)*sin(longitude). Figure out which is which, and perhaps you need to flip a sign, depending on your convention. I should be easy to figure out with those hints.