function config(type, settings = {}) {
let value = {};
const form = html`<form style="font: 12px var(--sans-serif); display: flex; flex-direction: column; justify-content: center; min-height: 33px;">
${Object.entries(settings).map(([name, {min, max}]) => html`<label style="display: flex; align-items: center;">
<input type="range" name="${name}" min="${min}" max="${max}" step="any" style="width: 180px;">
<div style="margin-left: 0.5em;"><i>${type}</i>.${name}(<output></output>)</div>
</label>`)}
</form>`;
for (const [name, {value: defaultValue, transform = x => +x}] of Object.entries(settings)) {
value[name] = transform(defaultValue);
form[name].value = defaultValue;
form[name].parentNode.querySelector("output").value = value[name].toFixed(2);
form[name].oninput = () => {
form.value = value = {...value, [name]: +transform(form[name].valueAsNumber).toPrecision(3)};
form[name].parentNode.querySelector("output").value = value[name].toFixed(2);
};
}
form.value = value;
return form;
}
function chart(eases) {
const line = d3.line();
const svg = d3.create("svg")
.attr("viewBox", [0, 0, width, height])
.style("max-width", `${width}px`)
.style("overflow", "visible");
svg.append("g")
.attr("fill", "none")
.attr("stroke", "black")
.attr("stroke-width", 1.5)
.attr("stroke-linecap", "round")
.selectAll("path")
.data(eases)
.join("path")
.attr("stroke-width", (e, i) => i < eases.length - 1 ? 0.25 : null)
.attr("d", e => line(d3.ticks(0, 1, width).map(t => [x(t), y(e(t))])));
svg.append("g")
.call(xAxis)
.call(g => g.append("text")
.attr("x", width - margin.right)
.attr("y", -3)
.attr("fill", "currentColor")
.attr("font-weight", "bold")
.text("t"));
svg.append("g")
.call(yAxis)
.call(g => g.select(".tick:last-of-type text").clone()
.attr("x", 3)
.attr("text-anchor", "start")
.attr("font-weight", "bold")
.text("t′"));
return svg.node();
}
x = d3.scaleLinear().range([margin.left, width - margin.right])
y = d3.scaleLinear().range([height - margin.bottom, margin.top])
xAxis = g => g
.attr("transform", `translate(0,${height - margin.bottom + 6})`)
.call(d3.axisBottom(x.copy().interpolate(d3.interpolateRound)).ticks(width / 60))
.call(g => g.select(".domain").remove())
.call(g => g.selectAll(".tick line").clone()
.attr("stroke-opacity", 0.1)
.attr("y1", margin.bottom + margin.top - height - 12))
yAxis = g => g
.attr("transform", `translate(${margin.left - 6},0)`)
.call(d3.axisLeft(y.copy().interpolate(d3.interpolateRound)).ticks(5))
.call(g => g.select(".domain").remove())
.call(g => g.selectAll(".tick line").clone()
.attr("stroke-opacity", 0.1)
.attr("x1", width - margin.left - margin.right + 12))
width = 640
height = 240
margin = ({top: 10, right: 20, bottom: 20, left: 30})
d3 = require("d3@6")
Purpose-built for displays of data
Observable is your go-to platform for exploring data and creating expressive data visualizations. Use reactive JavaScript notebooks for prototyping and a collaborative canvas for visual data exploration and dashboard creation.
