Attached Link: http://www.ecn.purdue.edu/purpl/projects/fastclouds/frames

For people who have asked me about the SWELL software... It seems Purdue has taken down the free software- at least temporarily. Here is a link to the page- still shows examples as well as SWELL help documents... I assume that they will be putting it back up again after addressing a few small issues- but I don't know when- so just keep checking back...