CGPS Visualisation Software Information

Please send questions and comments to Richard Gooch.


Though several software packages are available for the examination of 3-D scientific datasets, Karma was selected for CGPS data visualisation by the CGPS consortium membership at its 2nd annual meeting. This decision was made for a variety of reasons, including functionality, flexibility, expansibility, and developmental access. The latter two were significantly augmented by the hire of Richard Gooch, the principal author of Karma, to carry out further software development for the CGPS consortium at the University of Calgary in 1999. Richard has since moved on to other opportunities, but he continues to develop Karma's capabilities actively.

Karma is not just for use by CGPS scientists, but by anyone with a need to visualise 2-D and 3-D datasets, astronomical or otherwise. It has a worldwide user base, and is available free of charge.

Useful Links

Summary of Features

Two basic ways to examine a three-dimensional image are by looking at one or more 2-D slices through the data in various ways, or by studying the 3-D image as a whole with rendering techniques. The latter method can be quite demanding computationally, but sometimes it is the only way to discover features in the data which would otherwise remain hidden. The primary features of various ``modules'', or self-contained programs, of the different visualisation packages are listed below, with the modules sorted by technique and package.

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