chart = {
replay;
const context = DOM.context2d(width, height);
const nodes = logItems;
const simulation = d3
.forceSimulation(nodes)
.velocityDecay(0.2)
.force("x", d3.forceX().strength(0.002))
.force("y", d3.forceY().strength(0.002))
.force(
"collide",
d3
.forceCollide()
.radius((d) => {
return circleScale(d.count);
})
.iterations(2)
)
.on("tick", ticked);
// console.log(nodes);
invalidation.then(() => simulation.stop());
function ticked() {
// console.log(nodes);
context.clearRect(0, 0, width, height);
context.save();
context.translate(width / 2, height / 2);
// context.fillStyle = "#000";
for (const d of nodes) {
context.fillStyle = "#000";
context.moveTo(d.x + d.count, d.y);
context.beginPath();
context.arc(d.x, d.y, circleScale(d.count), 0, 2 * Math.PI);
// context.font(`9px sans-serif`);
// context.fillText(d.ingredient, d.x, d.y);
context.fill();
// context.moveTo(d.x + d.count, d.y);
// context.font(`6px arial`);
if (d.count > 10) {
context.fillStyle = "#fff";
context.textAnchor = "center";
context.textAlign = "center";
context.beginPath();
context.fillText(d.ingredient.slice(0, 9), d.x, d.y + 2);
}
}
// context.fill();
// for (const d of nodes) {
// context.beginPath();
// context.moveTo(d.x + d.count, d.y);
// // context.arc(d.x, d.y, d.count * 2, 0, 2 * Math.PI);
// context.font(`9px sans-serif`);
// context.fillText(d.ingredient, d.x, d.y);
// }
// context.fillStyle = "#fff";
// context.fill();
// context.strokeStyle = "#333";
// context.stroke();
context.restore();
}
return context.canvas;
}
circleScale = d3.scalePow().domain([5, 25]).range([5, 50])
fontScale = d3.scaleLinear().domain([1, 10]).range([3, 12]).clamp(true)
2022-12-29 1_59pm.csv
Type Table, then Shift-Enter. Ctrl-space for more options.
height = width
import {howto} from "@d3/example-components"
import {Swatches} from "@d3/color-legend"
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.