Darren's Photo Album:GRASS GIS

This album will contain some GRASS Screenshots. I'm working my way through a GRASS tutorial in my spare time, in an attempt to learn at least the basics of it. GRASS stands for Geographic Resources Analysis Support System, and is a public-licence GIS package. Learn more about GRASS here. Also, take a look at the course I'm working through here.

3D Drape
3D Drape
This is one of the first cool things I've done in GRASS. I know it's pretty simple, but I was happy just to get some data on the monitor! :) This is just an image of the elevation.dem from the spearfish tutorial dataset draped onto itself. I left most of the settings as default, as it tended to look worse the more I played with it.
Elevation Profile
Elevation Profile
Now I think that this is pretty cool! I made two elevation profiles of elevation.dem (from the spearfish dataset). The top profile line runs from the NE to the SW on the display. The second profile line (B) runs along the N edge of the area, from E to W. This is super easy to do in GRASS (even for someone who knows nothing!
Contour Generation
Contour Generation
This screenshot shows the tutorial page that I'm working on, with the example image, and then on the monitor is my verion of elevation.dem (my favourite raster obviously), and the contours that I generated on top of it (in white). Fun stuff
Watershed
Watershed
The watershed_basin raster that I created using the watershed function in GRASS. Here, I've draped the resulting raster over the elevation.dem (with 3x vertical exageration).

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Photo album generated by album from Dave's MarginalHacks on Fri Oct 3 23:38:49 2003