30 Saint Mary Axe Tower – Foster + Partners

To start the modeling process of the 30 St Mary Axe tower in Grasshopper, the very first step is to introduce its base which is a circle with a certain radius and then within the use of command move
we can multiply it in the Z direction. This first step demonstrates the general progress of the building in its height. After this we can start to design the first lines to introduce the facade shape in the next steps.
So the next step can be completing the facade shape and doing an internal offset to creating the floors.