Example of a topo_grid_active.rb file

# Topology name: topo_grid_active
# 
# The following command creates a Topology wih the nodes that have 
# successfully been imaged.
#
defTopology('topo_grid_active',[[20,20],[19,8],[13,11],[7,8],[11,5],
[15,19],[14,17],[16,18],[11,1],[9,2],[1,8],[20,14],[17,7],[14,5],[4,16],
[9,1],[10,17],[5,18],[18,10],[6,3],[13,3],[9,8],[19,10],[15,1],[11,16],
[7,2],[13,20],[5,12],[5,20],[15,16],[15,4],[6,12],[19,16],[18,16],[7,20],
[10,8],[16,16],[1,9],[6,2],[5,2],[6,11],[17,13],[16,3],[13,18],[10,18],
[11,11],[8,8],[7,10],[13,6],[4,10],[9,15],[20,13],[14,3],[8,14],[7,3],
[12,7],[17,16],[17,10],[6,10],[20,18],[18,13],[16,12],[16,1],[15,5],[13,7],
[7,19],[15,2],[12,17],[9,17],[5,13],[20,5],[14,9],[10,1],[6,18],[11,19],
[9,20],[8,1],[19,20],[9,12],[15,18],[11,13],[10,20],[6,16],[6,17],[7,7],
[12,5],[17,4],[7,16],[16,20],[16,15],[5,9],[11,9],[16,5],[12,13],[5,7],
[4,20],[1,17],[1,19],[19,18],[18,9],[6,6],[8,7],[16,10],[12,14],[20,12],
[19,7],[14,16],[13,16],[1,15],[20,11],[14,20],[5,16],[18,6],[15,7],[7,5],
[19,11],[18,15],[12,1],[8,17],[8,5],[15,9],[14,18],[12,11],[17,18],[14,6],
[5,17],[4,9],[11,15],[20,19],[17,11],[11,7],[11,2],[1,6],[18,18],[4,6],
[7,17],[15,11],[8,4],[10,4],[8,2],[9,4],[12,12],[12,6],[20,4],[11,4],[18,17],
[1,16],[19,5],[17,17],[17,14],[13,10],[11,3],[4,11],[6,4],[19,2],[13,5],
[9,11],[10,9],[17,5],[14,19],[20,3],[13,12],[9,16],[7,1],[16,9],[15,8],
[13,4],[5,1],[12,4],[18,12],[14,1],[12,20],[5,15],[9,14],[17,1],[19,6],
[6,9],[17,15],[10,11],[11,20],[15,20],[13,1],[8,3],[1,12],[18,2],[7,13],
[10,6],[20,1],[16,7],[8,11],[10,19],[4,19],[1,13],[8,13],[19,1],[14,2],
[1,7],[5,4],[1,5],[6,14],[17,6],[16,2],[4,12],[6,1],[4,13],[9,19],[11,17]])