Set line width on graph proportional to bandwidth

This is already a feature of the Google map, but that's not currently working.

1 files changed, 6 insertions, 1 deletions

diff --git a/lib/MGA/Mirrors/Controller/Graph.pm b/lib/MGA/Mirrors/Controller/Graph.pm
index 5d39b53..a2b6ad6 100644
--- a/lib/MGA/Mirrors/Controller/Graph.pm
+++ b/lib/MGA/Mirrors/Controller/Graph.pm
@@ -42,7 +42,12 @@ sub index :Path :Args(0) {
                    $graph->add_node($_, shape => 'box', cluster => $node{$_}{country});
                 }
             }
-            $graph->add_edge($from, $to);
+            # Minimum bandwidth of both nodes
+            my $bandwidth = ($node{$from}{bandwidth} < $node{$to}{bandwidth}) ? $node{$from}{bandwidth} : $node{$to}{bandwidth};
+            $bandwidth = 1 if (!$bandwidth);
+            my $thickness = log($bandwidth) / log(3) - 16;  # Scale line thickness from bandwidth
+            $thickness = ($thickness < 1) ? 1 : $thickness;
+            $graph->add_edge($from => $to, penwidth => $thickness);
         }
     }
     $c->stash->{graphviz}->{graph} = $graph;