Reposted by Paulo Cesar Siqueira, PhD
"An instant classic. [Data By Design] celebrates data visualization while also casting light on the dark parts of its history ... with rigor and grace." — @albertocairo.com
"Data By Design" shows how visualization can lead to a more liberatory world. Out Oct 20th: mitpress.mit.edu/978026205618...
![Screenshot of a Neovim buffer containing the following code:
// Three octaves of closed-form Perlin noise to make a terrain
fn weight(ix, iy) {
let fx = floor(x) + ix;
let fy = floor(y) + iy;
let dx = x - fx;
let dy = y - fy;
let angle = rand(mix(fx, fy)) * 2.0 * PI;
let dir_x = cos(angle);
let dir_y = sin(angle);
dx * dir_x + dy * dir_y
}
fn smoothstep(v) {
let t = v - floor(v);
return t * t * (3.0 - 2.0 * t);
}
let wa = weight(0, 0);
let wb = weight(1, 0);
let wc = weight(0, 1);
let wd = weight(1, 1);
let wab = wa + smoothstep(x) * (wb - wa);
let wcd = wc + smoothstep(x) * (wd - wc);
// Clamp w for better pruning when rendering
let w = max(min(wab + smoothstep(y) * (wcd - wab), 1.0), -1.0);
let terrain = w +
w.remap(x * 3, y * 3, z) * 0.2 +
w.remap(x * 9, y * 9, z) * 0.04;
draw(union(
intersection(
box([-1, -1, -0.1], [1, 1, 0.4]),
z - terrain - 0.1
),
box([-1, -1, -0.5], [1, 1, 0])))](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:sgqw2zixdcjtjjhrm4bw64ny/bafkreia677lmhfnocuzvsovvy4dedhovnyf75efhfr7yxpniijrhvvwrc4)
