The SHAPE package, written in C, consists of two programs: surfractal which calculates fractal atomic density, and maxaccess which calculates maximal sphere accessibility. Together they can be used to analyze structure and chemistry at the molecular surface. These programs can also be used easily as front ends for graphics programs such as Insight II and AVS. Along with the SHAPE package, SDSC will be distributing the SHAPE filter programs for Insight and AVS. This software will be free for academic users, but you must sign and return a license before accessing SHAPE.

Request a SHAPE license

This software may be obtained by e-mail request. We ask that you return a signed copy of the software license agreement sent in response to your e-mail.

Your E-Mail Address:

This is an automated process, and you'll receive a copy of license agreement and instructions on how to get a copy of the software by return e-mail.