I want to make this shape

I want to make this shape.


Is there an algorithm to make this shape? Even if I look for it, it doesn’t come out well.

cite the source : http://www.beta-architecture.com/the-jack-layton-city-terminal-park-diller-scofidiorenfro-architectsalliance-hood-design/

help

Please don’t create several threads on the same topic!