EJ Fox & Ian Johnson
streaming data, code, acid, design
contour = d3
.contourDensity()
.x(d => d.pos[0])
.y(d => d.pos[1])
.thresholds(function(c) {
let tz = 20; // the number of thresholds to evenly space by (usually configured)
var stop = d3.max(c);
tz = d3.tickStep(0, stop, tz);
tz = d3.range(0, Math.floor(stop / tz) * tz, tz);
tz.shift();
// Observable's "console.log", you can watch the value change above in real-time
mutable debug = tz;
// return tz;
return thresholds;
})
// .cellSize(1)
.size([width, height + 100])
// frame = 300
bgColor = weightColor(toOneScale(10))
rotation = -0.2
frames = d3.range(360)
myBoids = {
const sim = new Boids();
// Add 500 boids
for (let i = 0; i < width * .5; i++) {
sim.add();
// yield sim
}
return sim;
}
myBoids
.height(height + 100)
.alignment(0.72)
.cohesion(0.5)
.separation(0.85)
.perception(20)
.quadtree(true)
.maxSpeed(2.75)
import { cwf } from "@codingwithfire/cwf-season-2-reusable-style-elements"
myBoids
height = 500
d3 = require("d3@6", "https://files-5ouswn75j.vercel.app/d3-contour.js")
import { Scrubber } from "@mbostock/scrubber"
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.