The core part of the test suite is currently composed by **five
graph sets**, containing graphs ranging from 10 to 10,000 vertices. The
rationale behind this, is to group graphs according to their
topological characteristics, such us planarity or biconnectivity. A
list of the graph sets currently available in the test suite is
given hereunder, along with a brief description for each of them, and
a link to a file (with extension .tgz) containing the graphs.

**RND/BU4P**

This graph set contains 531 randomly generated graphs, used in*"S.S. Bridgeman, G. Di Battista, W. Didimo, G. Liotta, R. Tamassia, and L. Vismara, Turn-regularity and optimal area drawings of orthogonal representations, Comput. Geom. Theory Appl., vol. 16, no. 1, 2000, pages 53--93"*. Each graph in the set is biconnected, undirected, and 4-planar*File name*GDT-testsuite-BU4P.tgz *File size*1,810,273 Bytes (uncompressed: 16,128,000 Bytes) *Graph type*biconnected, undirected, and 4-planar *Number of graphs*531 **ALF/CU**

This graph set contains about 10.000 (ten thousands) graphs extracted from the ALF graph base, used in*"G. Di Battista and A. Garg and G. Liotta and R. Tamassia and E. Tassinari and F. Vargiu, An Experimental Comparison of Four Graph Drawing Algorithms, Comput. Geom. Theory Appl., vol 7, 1997, pages 303--325".**File name*GDT-testsuite-CU.tgz *File size*2,943,339 Bytes (uncompressed: 37,406,720 Bytes) *Graph type*connected and undirected *Number of graphs*10,000 (ten thousands) **ALF/CD**

This graph set contains about 10.000 (ten thousands) graphs extracted from the ALF graph base, used in*"G. Di Battista and A. Garg and G. Liotta and R. Tamassia and E. Tassinari and F. Vargiu, An Experimental Comparison of Four Graph Drawing Algorithms, Comput. Geom. Theory Appl., vol 7, 1997, pages 303--325".*Each graph in the set is connected and directed (edge directions have been set randomly).*File name*GDT-testsuite-CD.tgz *File size*3,269,315 Bytes (uncompressed: 37,539,840 Bytes) *Graph type*connected and directed *Number of graphs*10,000 (ten thousands) **RND/BUP**

This graph set contains about 200 (two hundreds) graphs generated randomly. Each graph in the set is biconnected, undirected and planar.*File name*GDT-testsuite-BUP.tgz *File size*347,664 Bytes (uncompressed: 2,652,160 Bytes) *Graph type*biconnected, undirected, and planar *Number of graphs*200 (two hundreds) **RND/BDPB**

This graph set contains about 200 (two hundreds) graphs generated randomly. Each graph in the set is biconnected, directed and planar-bimodal.*File name*GDT-testsuite-BDPB.tgz *File size*339,985 Bytes (uncompressed: 2,539,520 Bytes) *Graph type*biconnected, directed, and planar-bimodal *Number of graphs*200 (two hundreds)

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