Hi,David
I did almost the same as your defination from snapshot picture.but i dont know why i couldnt make the thickness of those points which is like yours,i think maybe is that i dont know what is the mean of 0 to 2*Pi part,here is my snapshot,http://grasshopper3d.googlegroups.com/ web/random.jpg?gsc=OKvCuwsAAACiZ9fa_LIZ0EMK-vIVFYqG Please help me, thank you!!~~online waiting..
