I dont remember seeing any mention of this before but could this be useful to our cause for maping LOS ?? http://mirror.aarnet.edu.au/pub/grass/grass/index2.html Matt -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.wireless.org.au/pipermail/melbwireless/attachments/20020706/b60eea0c/attachment.html>