Grashopper for Rhino

Dear All,

I would like to ask you if there is a way of controling a vertical plane by the movement of the sun. I have a surface that is controlled by a control point that I followed from a tutorial (http://blogs.cornell.edu/adaptivesystems/6_tutorial-3/  until step 3). And I have a Azimuth and Altitide controller that i followed from a tutorial (https://vimeo.com/19229897). Can you please help me to see if there is a possible way of conrtolling the surface by azimuth and altitude controller, basiclly joining these two algorithms together :)

I am a complete beginner and your help would be much appreciated.

Thank you,

Juste