Bi-directional Split y-Axis Line Chart
Simple Force Bubbles
md`# Simple Force Bubbles`
chart = {
const svg = d3.create("svg")
.attr("viewBox", [0, 0, width, height])
.style("max-width", width-margin.right-margin.left)
.style("margin", `${margin.top} ${margin.right}`)
.style("overflow", "visible");
const values = [0.5,0.75,1];
let nodes = d3.range(num).map( (i) => ({
radius: Math.floor(Math.random() * 20) + 5,
xValue: Math.random(),
yValue: Math.random(),
}) );
var simulation = d3.forceSimulation(nodes)
.force("charge", d3.forceManyBody().strength(0))
.force("center", d3.forceCenter(width / 2, height / 2))
.force("collision", d3.forceCollide().radius(d => d.radius))
.force("x", d3.forceX().x( (d) => xScale(d.xValue) ))
.force("y", d3.forceY().y( (d) => yScale(d.yValue) ))
simulation.on("tick", () => {
let item = svg
.attr("fill", "#e66300")
.attr("stroke", "#fff")
.attr("stroke-width", 1.5)
.selectAll("circle")
.data(nodes)
item.enter()
.append("circle")
.attr("r", (d) => d.radius)
.style("opacity", (d) => {
let random = Math.floor(Math.random() * values.length);
return values[random];
})
.merge(item)
.attr("cx", d => d.x)
.attr("cy", d => d.y)
})
return svg.node();
}
xScale = d3.scaleLinear().domain([0, 1]).range([0, width])
yScale = d3.scaleLinear().domain([0, 1]).range([height, 0])
num = 200
height = 300
margin = ({top: 50, right: 20, bottom: 50, left: 120})
d3 = require("d3")
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