chart = {
const svg = d3.create("svg").attr("width", width).attr("height", height);
// containers
let hueBlock = svg.append("g").attr("transform", "translate(20, 20)");
let saturationBlock = svg.append("g").attr("transform", "translate(20, 80)");
let lightnessBlock = svg.append("g").attr("transform", "translate(20, 140)");
// bars
hueBlock
.append("rect")
.attr("height", 20)
.attr("width", width - 40)
.style("fill", "#f7f7f7");
saturationBlock
.append("rect")
.attr("height", 20)
.attr("width", width - 40)
.style("fill", "#f7f7f7");
lightnessBlock
.append("rect")
.attr("height", 20)
.attr("width", width - 40)
.style("fill", "#f7f7f7");
data.forEach((d) => {
hueBlock
.append("circle")
.attr("cx", hScale(d.h))
.attr("cy", 10)
.attr("r", 5)
.style("fill", `hsl(${d.h},${d.s}%,${d.l}%)`);
saturationBlock
.append("circle")
.attr("cx", sScale(d.s))
.attr("cy", 10)
.attr("r", 5)
.style("fill", `hsl(${d.h},${d.s}%,${d.l}%)`);
lightnessBlock
.append("circle")
.attr("cx", lScale(d.l))
.attr("cy", 10)
.attr("r", 5)
.style("fill", `hsl(${d.h},${d.s}%,${d.l}%)`);
});
return svg.node();
}
data = [
{ name: "levels", h: 129, s: 9, l: 42 },
{ name: "peloton", h: 164, s: 34, l: 29 },
{ name: "fitbit", h: 186, s: 40, l: 49 },
{ name: "oura", h: 220, s: 36, l: 32 },
{ name: "forward", h: 215, s: 64, l: 32 },
{ name: "whoop", h: 360, s: 80, l: 61 },
{ name: "one medical", h: 179, s: 42, l: 22 },
{ name: "nike", h: 2, s: 62, l: 49 },
{ name: "strava", h: 15, s: 81, l: 54 }
]
hScale = d3.scaleLinear().domain([0, 360]).range([0, width])
sScale = d3.scaleLinear().domain([0, 100]).range([0, width])
lScale = d3.scaleLinear().domain([0, 100]).range([0, width])
height = 200
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