Hi Stefan and Marco,
my little contribution to pattern on a sphere ....
The helicoidal motif can be varied with the many parameters ,
n ° round for the helix .radius pipe etc. etc.
I can not post pictures anf file, I have problems with the server
of the area in which I live, if you want, and you think it opportune you can publish the images
for the users
File and picture at this link:
http://www.mediafire.com/file/wph22wy712e6fhn/Loxodrome_Pipe_Ball.zip/file
Have a nice day to all
al