Posted by
Stephen Guerin on
URL: http://friam.383.s1.nabble.com/more-fiddling-with-Blender-and-GIS-tp521259.html
We're preparing for a project that will be an agent-based model of wildfire
evacuation planning in Santa Fe -- Primarily a wildfire model coupled to a
traffic model with agents embedded in a social network deciding whether they
should stay in their houses or evacuate.
I'm putting Blender (
http://www.blender3d.org) through its paces to see if we
can use it for the visualization (and possibly portions of the agent and/or fire
modeling).
Tonight, I tried importing Digital Elevation Models (DEM) for Los Alamos and
Santa Fe directly into Blender. Below is a Quicktime that displays 2 square
degrees between latitude 35-36N and longitude 105-107W. The movie starts in the
southwest corner (35N107W) and moves up to the northwest over the Valle Caldera
near LANL (35.5N106.5W) and then over to Santa Fe. It ends roughly just north of
Santa Fe Ski Basins looking down toward Albuquerque.
http://www.redfish.com/projects/SFWildfire/SantaFe_DEM_SRTM.movI used DEM files of type SRTM (Shuttle Radar Topography Mission) from an FTP
directory at NASA (ftp://e0srp01u.ecs.nasa.gov/srtm/)
I found a SRTM conversion script on the Blender Elysiun forum. The script is
very nicely packaged with a site, *great* documentation and a GUI in Blender.
The site is here:
http://uaraus.altervista.org/index.php?filename=en/content/categories/Blender/DEM_importer.html. There's other scripts available to deal with other formats.
The documentation below is worth reading for more detail and it graphically
explains the data format of the SRTM file:
http://www.redfish.com/projects/SFWildfire/DEM_importer_eng_0.0.4.pdf-Steve