1. INFO 4470/ILRLE 4470 Experimental visualization John M. Abowd and Lars Vilhuber March 7, 2011

2. 2/1/2011© John M. Abowd and Lars Vilhuber 2011, all rights reserved2 Overview Implementations: – OnTheMap http://lehdmap.did.census.gov/http://lehdmap.did.census.gov/ – BLS CEW http://beta.bls.gov/maps/cew/ushttp://beta.bls.gov/maps/cew/us – Openheatmap http://www.openheatmap.com/ ex. US unemployment, Elections http://www.openheatmap.com/US unemploymentElections

3. 2/1/2011© John M. Abowd and Lars Vilhuber 2011, all rights reserved3 Overview Programmatic tools for graphs – Graphviz (http://www.graphviz.org/ ) (online viewer to play with: http://graphviz-dev.appspot.com/)http://www.graphviz.org/http://graphviz-dev.appspot.com/ Interactive high-performance tool – VisIT https://wci.llnl.gov/codes/visit/home.html https://wci.llnl.gov/codes/visit/home.html

4. 2/1/2011© John M. Abowd and Lars Vilhuber 2011, all rights reserved4 Graphviz Graph visualization is a way of representing structural information as diagrams of abstract graphs and networks. networking, bioinformatics, software engineering, database and web design, machine learning Graphviz takes descriptions of graphs in a simple text language, and makes diagrams in useful formats

5. 2/1/2011© John M. Abowd and Lars Vilhuber 2011, all rights reserved5 VisIT “ VisIt is a free, open source, platform independent, distributed, parallel, visualization tool for visualizing data defined on two- and three-dimensional structured and unstructured meshes. VisIt’s plug-in architecture allows it to perform a wide variety of plotting and data processing operations, and also allows VisIt to import data from many different data formats.”