Different Results with same Graph about viz-js HOT 2 OPEN

As far as I can tell, the output from Viz.js is consistent with the regular Graphviz program and library. That is, I get the same output when I try at least the first example using the dot command on my system. (The order of the cluster subgraphs affects the layout in the same way.)

always get the same result for a same set of nodes, edges and subgraphs

Can you say a bit more about your use case? I'm not sure this is possible without, say, sorting the input in some way.

The layout Graphviz chooses does depend on the order of the input. These graphs are the same in the sense that there are two nodes a and b with an edge between them, but they have different layout:

graph { a -- b }
graph { b -- a }

The same is true when using the Viz.js graph object feature. That just asks the Graphviz API to add nodes, edges, etc. to the graph in the order you provide.

Since this issue appears to be upstream of Viz.js, I suggest you ask about it on the Graphviz forum.

from viz-js.

Thank you for the answer. I also sent this issue to the graphViz github because I didn't know which was the most appropriate one to post this problem.

I want to obtain the coordinates of the nodes of a metabolic graph, with metabolites and reactions as nodes, and directed edges to connect them. In my program, I create clusters for the main reaction chains, which makes better drawing. So for a set of nodes (metabolic and reaction nodes), edges and clusters/subgraphs (main chains), I'd like to get the same graph to have a more robust code that doesn't depend on the order of the nodes in the input file, or the order in which my clusters are found.

from viz-js.