How to disable overlapping?

[kadiemq]

Node #935E5D is in front of #07DDB8 even though they come from a different parent node, how can I disable this behavior? Something like this:

       #07DDB8
                    
                    #935E5D

       #24393D      #C737BA        

[s0l0ist]

This is a bit complicated to explain, but in short this is an artifact of the layout algorithm that is used. The ranker determines the depth which looks like it has done correctly in this hierarchical graph. However, the position (left/right) of a node on the same rank is determined by several heuristics optimized for speed that cannot guarantee optimal placement.

Strictly speaking, you cannot directly control the rank (depth) or position (left/right) of the nodes; however, you may influence the auto layout in the following ways:

1. Edge weights. The higher the weight, the more bias is introduced to keep edges straight, but its is only a heuristic and isn't guaranteed to make an edge straighter or go into a specific position. It also influences the other edges/node positions of the entire graph.
2. The order of operations when adding nodes/edges to the DirectedGraph. This can have a major influence on the positioning of nodes as layout considers the order in which nodes and edges are added in many of the traversal algorithms.

Ultimately, if your graph is hierarchical in nature (and processing this data can be predictable), then you should focus on changing the order of adding nodes/edges to the graph.