What do the bars mean on that graph?
looks like the sum of all bids or asks for each price range.
Exactly. Not very precise but it give a rough picture. What I really like about this software is that it connect directly to MtGox API so the latency is lower than the usual charting website. I use it in conjunction of bitcoinwisdom.com
Cant be, its completely random. A 5k wall has no effect, a 300 one does. Either so terrible programmed that its useless, or being misinterpreted.
What? Both column are independent. Look at the price.
Huh? Look at this bids and asks in each set. You will see a small 200 bid have a huge impact on the bar length, and a massive 6k one do nothing
Because the set on the left is not on the same scale as the one on the right. Both columns on the far left are not parallel to the two on the far right.