the prefuse visualization toolkit

Good morning,

hope all are well.

I properly have discovered a bug in the GraphDistanceFitler of the flare
toolkit.

It seems to me that the depth is not set correctly if the filter is
traversing GRAPH_LINKS. The modification I applied which seems to fix that
problem


/** ------ start of modification */

//xn = (depths[xe.source] == undefined ? xe.source : xe.target); //original
coding

if (depths[xe.source] == undefined) {
xn = xe.source;
} else if (depths[xe.target] == undefined) {
xn = xe.target;
} else {
continue; //both nodes have been visited already (graph traversal)
}

/** ------ end of modification */

The original coding assumes that at least one of the two connected nodes
haven't been visited yet, which might be wrong in the case of a graph link
traversal.


Cheers and happy prefusing

martin