Some examples of mathmatical curves (described in cylindrical coordinate systems) insired by the spirograph we all played around with as kids...







Here an a bit more advanced version of it as to find in Science Museum London:






Here an example of the Hypotrochoid curve:






similar: the Roses Curves:








one function creates all those different shapes:

the grasshopper definition:

First tests of an Exel component for Grasshopper.
The grasshopper-> Excel works really well... and LIVE!

Creating a bidirectional component is a bit harder as Grasshopper only seems to rerun the code when an event in the grasshopper logic is detected.
I am working on an event watcher for excel now to make the Excel-> grasshopper direction possible...
I am quite new to DotNET, does anyone have a good idea for that?

Marc

here another example (simply outputting the z coordinates of a math surface):