I uploaded a very similar GH definition for solar analysis: http://groups.google.com/group/grasshopper3d/web/SunAnalysis_baldino.jpg http://groups.google.com/group/grasshopper3d/web/SunAnalysis_baldino.ghx
i was able to color the mesh with gradients (thanks VB.net!) solar data comes from http://www.susdesign.com/sunposition/ and some annoying copy paste through excel is required, but it works quite well :) and thanks to fraguada for the inspiration
