data

Sample datasets

Some small sample datasets that may be useful for various examples.

• sscand.nrrd: Elevation data in an area around southern Scandanavia. The original data is from http://www.ngdc.noaa.gov/mgg/global/global.html but some hacky post-processing was used to make this image. The result doesn't have a cleanly defined geographic coordinate system, so sscand.nrrd includes only minimal orientation information so as to not be misleading.
• ddro.nrrd, ddro-200.nrrd, ddro-100.nrrd: Portrait of Diderot himself, as created and processed by ddro-gen.sh. All resolutions of the image are square, with the domain [-1,1]x[-1,1].
• sqflow-{1608,3928}.nrrd, sqflow2D-{1608,3928}.nrrd: From a Navier Stokes simulation of incompressible flow past a square cylinder, by Simone Camarri and Maria-Vittoria Salvetti (University of Pisa), Marcelo Buffoni (Politecnico of Torino), and Angelo Iollo (University of Bordeaux I). A uniform resampling was computed by Tino Weinkauf, and used in von Funck et al. for smoke visualizations. For time-step 1608, sqflow-1608.nrrd is the 3D flow data, and sqflow2D-1608.nrrd is a central slice (of 2-vectors) in which the 3D flow is maximally contained within the slice. sqflow-3928.nrrd and sqflow2D-3928.nrrd are the same things for time step 3928. sqflow-gen.sh documents exactly how these were created.

More datasets will be added as more example programs are finished.