Is there a way to supply a custom ranker or fix the layout in the rank axis?

[rikkertkoppes]

My use case is to layout a graph in time. Every node in my graph is associated with a timestamp (and duration), which is always consistent with the edge direction (edges always point in positive time direction).

Hence, I'd like to use that timestamp for ranking, or, alternatively, use the timestamp as the x coordinate (and duration as the width). Dagre would then figure out the best y-coordinate to minimize edge crossings.

[richardwestenra]

PR #271, which is closed (for some reason), would allow you to supply custom node ranking. I would like to reopen it, because it would solve a problem for me as well (custom layers that affect the layout in the rank axis).

@lutzroeder what do you think?

[j6k4m8]

I have the exact same use case (points live along a timeline). Would love to reopen 271 if possible.