[GraphHopper] Get direction of edges

[Robert Schmid]

Hello,

I am searching for a way to get the direction of an edge when iterating 
it. I added some height information and a routing WeightCalc which is 
able to find the most energy efficient route. The problem is that I can 
not determine whether I access the edge up- or downhill. I found a 
solution to get the right directions when I already calculated the path. 
Because then i can check if the current edge is connected to the next 
edge via base or adjacent node. But how can I find the right directions 
while routing?

PS. it would be nice to have the EdgeIterator cloneable!

Thanks in advance,

Robert