public bool ShowCoverage(bool randomize)
{
// find all nodes reachable from source node
// (note that we must scale the maximum step cost for Subdivision)
T source = FindSource(randomize);
var coverage = new Coverage <T>(Graph);
bool success = coverage.FindReachable(this, source, _scaleCost * 10);
Locations = coverage.Nodes;
Renderer.InvalidateVisual();
return(success);
}
