surface area source code (request)

[Pornthep Sompornpisut]

Dear Colleagues,

   I have a few questions concerning about calculation of the solvent
accessible surface area of proteins. Here they are as follows:

 1. Does anyone know if there is any source code available for
calculating accessible surface area derived from analytical
function?  
 2. What is the best current approach to express the surface areas as a
function of interatomic distance?

   Any response are welcome and appreciated. Thank you in advance.

Thep
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Department of Physiology
University of Virginia
ps2t at virgnia.edu
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