Next.js React, Electron
chart = {
const height =600;
const svg = d3.create("svg").attr("viewBox", [-width / 2, -height / 2, width, height]);
const tooltip = d3.select("body").append("div")
.attr("id", "tooltip")
.style("position", "absolute")
.style("transition", "opacity .1s")
.style("opacity", "0")
.style("visibility", "hidden")
.style("background-color", "white")
.style("padding", "8px")
.style("border", "1px solid #eee")
.style("pointer-events", "none");
const edges = graph.edges
.map(e => ({...e}))
;
const depthToY = d => d.randId * range - range/2;
function getDepth(node) {
if (isRoot(node)) { return 0; }
const incomingEdge = graph.edges.find(e => e.target === node.id);
const parent = graph.nodes.find(n => n.id === incomingEdge.source);
return getDepth(parent) + 1;
}
function isRoot(node) {
return graph.edges.every(e => e.target !== node.id);
}
const randoms = Array.from({length: graph.nodes.length}, () => Math.random());
const nodes = graph.nodes
.map(n => ({...n}))
.map((n,i) => ({
...n,
incomingEdges: graph.edges.filter(e => e.target === n.id).length,
outgoingEdges: graph.edges.filter(e => e.source === n.id).length,
isRoot: isRoot(n),
isLeaf: graph.edges.every(e => e.source !== n.id),
onlyHasOneOutput: graph.edges.filter(e => e.source === n.id).length === 1,
depth: getDepth(n),
randId: randoms[i]
}));
const maxDepth = graph.nodes.reduce((max, node) => node.depth > max ? node.depth : max, nodes[0].depth);
function setTooltip(annotations, [x,y]) {
if (!annotations) return;
tooltip.style("visibility", "visible")
.style("opacity", "1")
.html(`${Object.entries(annotations).map(([k,v])=> k + ":" + v +"\n")}`) // Dynamic content
.style("left", (x + 10) + "px")
.style("top", (y + 10) + "px");
}
const linkSelection = svg
.append("g")
.attr("stroke", "#999")
.selectAll("line")
.data(edges)
.join("g")
.call(edge)
.call(e =>
e.on("mouseover", function(e,d) {
setTooltip(d.annotations, [e.pageX, e.pageY]);
})
.on("mouseout", function() {
tooltip.style("visibility", "hidden")
})
.style("cursor", d => d.annotations ? "pointer" : "not-allowed")
)
;
const nodeSelection = svg
.append("g")
.selectAll("g")
.data(nodes)
.join("g")
.call(node)
;
const simulation = d3.forceSimulation(nodes)
.force("link", d3.forceLink(edges).id(d => d.id))
.force("center", d3.forceCenter(0,0).strength(.05))
//.force("collide", d3.forceCollide().radius(d => (1-(d.depth / maxDepth))*collide_mult))
.force("manyBody", d3.forceManyBody().strength(-100 * collide_mult))
//.force("x", d3.forceX(-1000).strength(.001))
//.force("forceY", d3.forceY(d => 400 * d.depth - 800))
.alphaDecay(0)
;
let time = 0;
simulation.on("tick", () => {
time++;
nodeSelection
.attr("transform", d => `translate(${d.x}, ${(d.y)})`)
;
linkSelection.selectAll("line")
.attr("x1", d => d.source.x)
.attr("y1", d => d.source.y)
.attr("x2", d => d.target.x)
.attr("y2", d => d.target.y)
const prog = 1 - (time/47 % 1);
linkSelection.selectAll("circle")
.attr("r", 2)
.attr("cx", d => d.target.x + (d.source.x - d.target.x) * prog)
.attr("cy", d => d.target.y + (d.source.y - d.target.y) * prog)
.attr("fill", d => "black");
if (time === stopFrame) {
simulation.force("collide", null);
simulation.force("x", null);
simulation.force("link", null);
simulation.force("manyBody", null);
}
});
invalidation.then(() => simulation.stop());
return { simulation, svg, edges, nodes, time };
}
viewof collide_mult = Inputs.range([1, 15], {label: "collide mult", step: .11})
graphRaw = `
next.js -> renderer/out [dir=builds_into];
renderer/pages -> renderer [dir=sub];
renderer/out -> renderer [dir=sub];
electron -> node.js [process=runs];
electron -> main/index.js [config=entry_point];
main/index.js -> renderer/out [loads_via=browserWindow:loadURL];
electron -> electron-builder [process=built_by];
react_app -> next.js [process=built_by];
react_app -> renderer/pages [dir=defined_in];
package.json -> next.js [command=npm_run_build]
`;
graph = parseGraphViz(graphRaw)
graph.nodes.sort((a,b) => b.incomingEdges - a.incomingEdges)
node = {
const colorFromHighlights = ({ isRoot, isLeaf, onlyHasOneOutput }) => {
const r = highlights.includes("Leaves") && isLeaf ? 255 : 0;
const g = highlights.includes("Roots") && isRoot ? 255 : 0;
const b = highlights.includes("Only one output") && onlyHasOneOutput ? 255 : 0;
return `rgb(${r}, ${g}, ${b})`;
};
const highlight_color = "gold"
return selection => {
const size = 100;
//selection.attr("y", d => d.depth * 400);
selection.append("circle")
.attr("r", d => d.outgoingEdges * 2 + 3)
.attr("fill", d => colorFromHighlights({...d}))
selection.append("text")
.attr("fill", "slategrey")
.attr("x", 24)
.text(d => d.id)
};
}
edge = {
return selection => {
selection.append("line")
.attr("stroke-width", 10)
selection.append("circle")
.attr("r", 1)
};
}
viewof highlights = Inputs.checkbox(["Leaves","Roots", "Only one output"], {label: "Highlights"})
range = 400
One platform to build and deploy the best data apps
Experiment and prototype by building visualizations in live JavaScript notebooks. Collaborate with your team and decide which concepts to build out.
Use Observable Framework to build data apps locally. Use data loaders to build in any language or library, including Python, SQL, and R.
Seamlessly deploy to Observable. Test before you ship, use automatic deploy-on-commit, and ensure your projects are always up-to-date.