Visualize for skip list

[aveldan]

Hey @spirosmaggioros I was trying to create a visualize for skip list. I saw it was missing it.
I had a little bit of success but I am not sure how do I make the edges for same key nodes in different level to be perfectly vertical.

Below is the result from my trying.

You see the 0 from all different levels should be ideally vertical.
This is the dot file for the above image

digraph list {
rankdir=LR;
node [shape=record;]
k0l2 [label="{<f0> 0 | <f1> } | <f2> "];
k12l2 [label="{<f0> 12 | <f1> } | <f2> "];
k0l2:f1 -> k12l2:f0;
k0l1 [label="{<f0> 0 | <f1> } | <f2> "];
k0l2:f2 -> k0l1:f0;
k6l1 [label="{<f0> 6 | <f1> } | <f2> "];
k0l1:f1 -> k6l1:f0;
k12l1 [label="{<f0> 12 | <f1> } | <f2> "];
k6l1:f1 -> k12l1:f0;
k12l2:f2 -> k12l1:f0;
k0l0 [label="{<f0> 0 | <f1> } | <f2> "];
k0l1:f2 -> k0l0:f0 [rankdir=TB];
k3l0 [label="{<f0> 3 | <f1> } | <f2> "];
k0l0:f1 -> k3l0:f0;
k6l0 [label="{<f0> 6 | <f1> } | <f2> "];
k3l0:f1 -> k6l0:f0;
k6l1:f2 -> k6l0:f0;
k7l0 [label="{<f0> 7 | <f1> } | <f2> "];
k6l0:f1 -> k7l0:f0;
k9l0 [label="{<f0> 9 | <f1> } | <f2> "];
k7l0:f1 -> k9l0:f0;
k12l0 [label="{<f0> 12 | <f1> } | <f2> "];
k9l0:f1 -> k12l0:f0;
k12l1:f2 -> k12l0:f0;
}

Here in the dot file I am naming the nodes as k<key>l<level> so k6l0 [label="{<f0> 6 | <f1> } | <f2> "]; means node with key 6 in 0th level.

I have tried adding something like [rankdir=TB] in front of relevant edges.
Also tried something like

subgraph cluster_0 {
        rankdir=TB;
        00:f2 -> 00:f0;
    }

But they don't work.
You have any idea how to make it happen help me. I am not very much familiar with the dot file structure.

[github-actions]

Thank you for your interest in AlgoPlus, a maintainer will see your issue soon!

[spirosmaggioros]

You can look here: https://skiplist.readthedocs.io/en/latest/visualisations.html . I had in mind to make one, but i wanted to implement more stuff to just check the boxes, and when everything is ready look into the visualizations and examples. If you can make it work will be great.

[spirosmaggioros]

This is closed as @aveldan made it.