GRASS grid3d raster volume Interface

Under Construction!

Related links:

Grid3D was developed by CERL and GMSL/University of Illinois

Sample data set: Download 3D weather situation. Map name: CloudLCP.992172300 (you won't see it with standard GRASS commands), Resolution: Rows: 80, Cols: 100, Depths: 21, top height: 1125m, bottom height: 75m. The data set is kindly provided by Steve Hall/LMCO.

Usage of the sample data set:

                            GRASS 5.0beta7
LOCATION: This is the name of an available geographic location.  -spearfish-
          is the sample data base for which all tutorials are written.
MAPSET:   Every GRASS session runs under the name of a MAPSET.  Associated
          with each MAPSET is a rectangular COORDINATE REGION and a list
          of any new maps created.
DATABASE: This is the unix directory containing the geographic databases
          The REGION defaults to the entire area of the chosen LOCATION.
          You may change it later with the command: g.region
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
LOCATION:   weather_______             (enter list for a list of locations)
MAPSET:     PERMANENT_____             (or mapsets within a location)

DATABASE:   /home/neteler/grassdata5__________________________

Adjust the DATABASE path to your local path.

Generate iso layer using r3.mkdspf, display them with r3.showdspf (requires openGL or MESA 3D).

A sample display file is provided:
r3.showdspf grid3=CloudLCP.992172300 dspf=test
Display the layers using "+" then.

You can also use Vis5D to visualize your 3D data set (use r3.out.v5d to export into Vis5D format). VIS5D is a system for interactive visualization of large 5-D gridded data sets such as those produced by numerical weather models. One can make isosurfaces, contour line slices, colored slices, volume renderings, etc of data in a 3-D grid, then rotate and animate the images in real time. There's also a feature for wind trajectory tracing, a way to make text anotations for publications, support for interactive data analysis, etc.

Example: 3D silt distribution

Send your comments to Markus Neteler