I am afraid there is not a 'manual' available for the code. However, I have published some papers on the process for those interested in how Grasshopper is being implemented in practice. You can find links to them on my blog as others here have already pointed out.
The 'source code' and a complete manual of the parametric assembly are not mine to publish as the copyright belongs to NBBJ. They would also be of very little value to you unless 1. You are running Grasshopper v0.6 (maybe earlier) and 2. Planning on building a large steel flower-looking stadium.
ANGELOS
http://www.grasshopper3d.com/profiles/blogs/nbbj-parametric-strateg...
how about this?
May 2, 2012
Nathan Miller
The 'source code' and a complete manual of the parametric assembly are not mine to publish as the copyright belongs to NBBJ. They would also be of very little value to you unless 1. You are running Grasshopper v0.6 (maybe earlier) and 2. Planning on building a large steel flower-looking stadium.
Best,
Nathan
May 2, 2012
Stephanie
Thank you so much, it´ll help me a lot. Specially Nathan Thanks for the "sister" project .
Gracias
May 3, 2012