From Doxiadis and Pikionis to Terroir and BIG

Very few modern architects actually use polar coordinates in their architectural plans and/or urban design projects. It's interesting to see two contemporary practices (TERROIR and BIG) following Pikionis' sophisticated regulating traces.
TERROIR has a direct reference to Doxiadis' theory:

http://www.terroir.com.au/projects/type/libraries/canberra-library-studio

while BIG follows a more abstract - or simplistic - concept:

http://www.big.dk/#projects-bad

Dimitris Antonakakis' analysis of Pikionis' polar harmonic traces

BIG's Copenhagen Harbour Bath project

TERROIR's Canberra library/studio