I have studied computer science in Erlangen, Germany. I work as CTO in an IT company located in Nuremberg.
I first came across the City Metaphor in 2010/2011 when I was searching for a tool which could visualize code analysis models derived from Java and .NET code in 2D and/or 3D.
During this time I discovered CodeCity which was written in Smalltalk by Richard Wettel ( https://wettel.github.io/codecity.html) as part of this PhD thesis.
I used CodeCity for Java Projects. But at that time no .NET Famix generators existed which suited my needs. So I implemented a Famix generator for .NET which I sucessfully used to import models into CodeCity as well as into the MOOSE platform. This was so to say the starting point of SharpMetrics.