I am considering moving from mermaid.js to graphviz but one point is still blocking me: the ability for a node to point to a cluster. Taking the typical example everyone shows (the version, modified with my attempts is online ), I tried to point the node a3 to the cluster cluster_1: digraph G { …

I don’t know if the dot layout engine supports edges to/from clusters, but fdp does. See <a href="http://magjac.com/graphviz-visual-editor/?dot=digraph%20G%20%7B%0A%20%20%20%20compount%3Dtrue%3B%0A%20%20%20%20layout%3Dfdp%0A%0A%20%20subgraph%20cluster_0%20%7B%0A%20%20%20%20style%3Dfilled%3B%0A%20%20%20%20color%3Dlightgrey%3B%0A%20%20%20%20node%20%5Bstyle%3Dfilled%2Ccolor%3Dwhite%5D%3B%0A%20%20%20%20a0%20-%3E%20a1%20-%3E%20a2%20-%3E%20a3%3B%0A%20%20%20%20label%20%3D%20%22process%20%231%22%3B%0A%20%20%7D%0A%0A%20%20subgraph%20cluster_1%20%7B%0A%20%20%20%20node%20%5Bstyle%3Dfilled%5D%3B%0A%20%20%20%20b0%20-%3E%20b1%20-%3E%20b2%20-%3E%20b3%3B%0A%20%20%20%20label%20%3D%20%22process%20%232%22%3B%0A%20%20%20%20color%3Dblue%0A%20%20%7D%0A%20%20start%20-%3E%20a0%3B%0A%20%20start%20-%3E%20b0%3B%0A%20%20a1%20-%3E%20b3%3B%0A%20%20b2%20-%3E%20a3%3B%0A%20%20a3%20-%3E%20cluster_1%3B%0A%20%20a3%20-%3E%20end%3B%0A%20%20b3%20-%3E%20end%3B%0A%0A%20%20start%20%5Bshape%3DMdiamond%5D%3B%0A%20%20end%20%5Bshape%3DMsquare%5D%3B%0A%7D">this example .

Short answer: no Medium answer: Only fdp supports clusters as head and/or tail of an edge (though this feature was recently broken - see fdp cluster->cluster edges were correct but now drawn incorrectly (#2345) · Issues · graphviz / graphviz · GitLab ) Long answer & (lightly tested) work-around …

Can a node point to a cluster without involving that cluster own nodes?

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Can a node point to a cluster without involving that cluster own nodes?

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