Visual Python - Ulam Variations

Some mucking about with VPython to create 3D interpretations of the Ulam spiral algorithm. The above images are a variation of the following pagoda like structure:



Detail:


Manhattan Height Limit:

This is the same algorithm as above images, just a different extruded shape with the camera positioned merely above the skyscrapers.


Manhattan primes:



Here are the primes distributed within the pagoda:


This looks a bit like a scud missile to me. Prime numbers positioned throughout the Z axis using (n/2.71828)*cos( distillNumber(n)/2.71828 )
where distillNumber is a function returning the base root of a given number.


Seems to be a theme here...