On 06/04/11 18:37, Michael P. Gerlek wrote: > I'll call your bluff / nag you on the viewer, though -- can you give us any > details?
We process LIDAR for the NERC ARSF (http://arsf.nerc.ac.uk/) and needed a way to handle large datasets in Linux (sorry, no Windows port yet), mostly for profiling and manual classification. We got a couple of compsci intern students to write us a viewer, so the code (C++/Boost/GTK-glade/OpenGL) isn't very pretty and the UI is a bit quirky, but it's serving our purposes well at the minute. The code was originally derived from another GPL image viewer, so it's GPL too. http://rsg.pml.ac.uk/staff/mggr/lag_screenshot_ethiopia299-crop.jpg is a screenshot of it viewing ~20GB of data from Ethiopia on a 4GB machine. It handles this with a quad tree structure, storing multi-resolution tiles to local disk. Obviously it's not fast if you have to page a lot, but it's not bad especially when zoomed out. We call it LAG ;) I've been meaning to put it up on our website or SF, but haven't got around to it yet. Maybe posting about it will help - nagging welcome! Cheers, Mike. P.S. I'm now away until Monday, after stirring up interest ;) -------------------------------------------------------------------------------- Plymouth Marine Laboratory Registered Office: Prospect Place The Hoe Plymouth PL1 3DH Website: www.pml.ac.uk Click here for PML Annual Review 2010 Registered Charity No. 1091222 PML is a company limited by guarantee registered in England & Wales company number 4178503 Please think before you print -------------------------------------------------------------------------------- This e-mail, its content and any file attachments are confidential. If you have received this e-mail in error please do not copy, disclose it to any third party or use the contents or attachments in any way. Please notify the sender by replying to this e-mail or e-mail [email protected] and then delete the email without making any copies or using it in any other way. The content of this message may contain personal views which are not the views of Plymouth Marine Laboratory unless specifically stated. You are reminded that e-mail communications are not secure and may contain viruses. Plymouth Marine Laboratory accepts no liability for any loss or damage which may be caused by viruses. -------------------------------------------------------------------------------- _______________________________________________ Liblas-devel mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/liblas-devel
