Spiral_Relief_Mesh_Ring

Only GH Definition.
Just Baking. No edges.
No Operation on Rhino.

This time pattern is made from spiral expression.

Steps to generate
/make simple ring
/make spiral crv by expression of sine and cosine
/Morph spiral crv on outside of ring surface
/change ring from polysrf to mesh
/measure distance from mesh vertices to morphed crv
/generate boolean data by set minimum distance
/filter vertices by boolean data
/make sequence by the distance from vertices to crv, and sine frequency by graph mapper
/move filtered vertices along each vectors that made from normal and the sequence
/weave moved vertices and un moved vertices
/create mesh by vertices and first mesh face

http://www.gjd3d.com/photo/albums/spiralreliefmeshring-1