Public
Edited
Nov 1
1 star
md`# Running color lines (limited)
`
line = d3.line()
.x( (d,i) => x(i))
.y((d,i) => y(d))
.curve(d3.curveBasis);
chart = {
const svg = d3.create("svg").attr("viewBox", [0, 0, width, height]);
svg
.append("rect")
.attr("x", 0)
.attr("y", 0)
.attr("width", width)
.attr("height", height - margin.bottom)
.attr("fill", "black");
draw();
function draw() {
var lines = 10;
var offset = height / (lines + 1);
for (var i = 0; i < lines; i++) {
var data = Array.from({ length: Math.random() * 72 + 28 }, () =>
Math.random()
);
var lineGroup = svg
.append("g")
.attr("transform", `translate(0,${-i * offset - offset / 4})`);
var randDuration = Math.random() * 4000 + 3000;
lineGroup
.append("path")
.datum(data)
.attr("class", `path${i}`)
.attr("stroke", color(i))
.attr("stroke-width", 6)
.style("mix-blend-mode", "screen")
.attr("d", line)
.transition()
.duration(randDuration)
.ease(d3.easeLinear)
.attrTween("stroke-dasharray", function (d, i) {
const length = this.getTotalLength();
return d3.interpolate(`0,${length}`, `${length},${length}`);
});
}
}
return svg.node();
}
lines = d3.range(10)
color = d3.scaleOrdinal(d3.schemeSet3)
data = Array.from({length: 100}, () => Math.random());
style = html`
<style>
line {
mix-blend-mode: screen;
}
<style>`
x = d3.scaleLinear()
.domain([0,100])
.rangeRound([-10, width-margin.right])
y = d3.scaleLinear()
.domain([0, 10])
.rangeRound([height - margin.bottom, margin.top])
.clamp(true)
height = 600
margin = ({ top: 0, right: 0, bottom: 0, left: 0 })
d3 = require("d3@5")
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