Slovakia Precipitation data

http://www.grassbook.org/data_menu2nd.php

Data set provided by:
 Helena Mitasova
 Jaro Hofierka
 2004

 Updated: 1/2006
-----------------------------------------------------------
Quick tour:
 The map 'dem500' is used for a DEM.
 There is a 3D file 'precip3d.500z50' that can be used
 for isosurfaces and cross-sections.

Start:
a)
 nviz el=dem500

 Then load the volume (Panel -> Volumes -> New).

b) simplified:
 nviz el=dem500 vol=precip3d.500z50

Visualization:

 You can visualize the volume as
 - one or many isosurfaces representing identical values
   within the volume; or
 - one or many profiles.

 To see the isosurfaces, use values between 600 and 1300
 (e.g. 700 and 1000 with transparency of approx. 100 and 
  a third isosurface 1300 with no transparency).

 Select "Add" in the "Volumes" menu, then "700" as "New constant",
 the same for "1000" and "1300" (mm/year).

 Now set the polygon resolution to 3 or less (note that for
 resolution 1 you may need to wait a little depending on your
 machine's speed) to render the volume.

 Finally click on "Draw" or move the puck.

You should get something like this:
 http://skagit.meas.ncsu.edu/~helena/grasswork/slovakiavol.jpg
 http://skagit.meas.ncsu.edu/~helena/grasswork/zrzky3dres1.jpg
 http://skagit.meas.ncsu.edu/~helena/grasswork/zrazky3d.jpg

Last changed:
$Date: 2014-01-04 18:49:44 +0100 (Sat, 04 Jan 2014) $