GRASS grid3d raster volume Interface

Slovakia 3D precipitation data Slovakia 3D precipitation data
GRASS 6+ offers support for 3D raster voxel volumes. Basic features currently cover:

Related links:

Example applications:

Grid3D library was developed by CERL and GMSL/University of Illinois

G3D Sample data set

You can download the Slovakia 3D precipitation data from the sample data page ("Slovakia 3D precipitation data set").
For instructions, read the related README file.

Vis5D data viewer

You can also use Vis5D or 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
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