Modify Graphviz Code

Probably way off the mark interms of detail - but equally probably suggests a feasable approach:

import { Graphviz } from "@hpcc-js/wasm-graphviz"; // 1) Wrap a path string from a wiki page into a tiny, self-sized SVG const svgFromPath = (pathD, w = 24, h = 24) => `<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 ${w} ${h}" width="${w}pt" height="${h}pt"> <path d="${pathD}" fill="none" stroke="black" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/> </svg>`; const toDataUri = svg => 'data:image/svg+xml;utf8,' + encodeURIComponent(svg); // 2) Build the images registry from wiki pages (pseudo-fetch shown) async function buildImagesRegistry(iconSpecs) { // iconSpecs: [{ id: "feather", pathD, w, h }, ...] collected from wiki pages return iconSpecs.map(({ id, pathD, w = 24, h = 24 }) => { const svg = svgFromPath(pathD, w, h); const uri = toDataUri(svg); return { id, uri, width: `${w}pt`, height: `${h}pt` }; }); } // 3) Produce DOT using those URIs as node images function dotFromGraph(icons, edges) { // icons: [{ id, uri }], edges: [{ from, to }] const nodesDot = icons.map(i => `"${i.id}" [shape=none, label="", image="${i.uri}", imagescale=true, fixedsize=true, width=0.35, height=0.35, margin=0]` ).join('\n '); const edgesDot = edges.map(e => `"${e.from}" -> "${e.to}"`).join('\n '); return `digraph { rankdir=LR; node [fontsize=11]; ${nodesDot}\n ${edgesDot}\n}`; } // 4) Render via WASM Graphviz, pre-registering the images async function renderSvg(dot, images) { const gviz = await Graphviz.load(); const opts = { images: images.map(i => ({ path: i.uri, width: i.width, height: i.height })) }; return gviz.dot(dot, "svg", opts); }

Here is an earlier version:

> using **@hpcc-js/wasm-graphviz

`@hpcc-js/wasm-graphviz` lets you provide an **images table** (URL or data URI + dimensions). Then `image="..."` in DOT matches those entries.

import { Graphviz } from "@hpcc-js/wasm-graphviz"; const makeIconDataURL = (pathD) => 'data:image/svg+xml;utf8,' + encodeURIComponent( `<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" width="24pt" height="24pt"><path d="${pathD}"/></svg>`); const iconA = makeIconDataURL("M12 2L19 21H5Z"); // your path data here const iconB = makeIconDataURL("M3 3h18v18H3Z"); // your path data here const dot = ` digraph { node [shape=plain, label="", fixedsize=true, imagescale=true, width=0.35, height=0.35]; A [image="${iconA}"]; B [image="${iconB}"]; A -> B; }`; const gviz = await Graphviz.load(); const svg = gviz.dot(dot, "svg", { images: [ { path: iconA, width: "24pt", height: "24pt" }, { path: iconB, width: "24pt", height: "24pt" } ] }); // inject `svg` string where your plugin needs it