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D3.js is a JavaScript library for manipulating HTML data. D3.js is easy to use. How to Use D3.js? To use D3.js in your web page, add a link to the library:
Formula
< script src ="//d3js.org/d3.v3.min.js"></script >This script selects the body element and appends a paragraph with the text "Hello World!":
d3.select("body").append("p").text("Hello World!");// Set Dimensions const xSize = 500;
const ySize = 500;
const margin = 40;
const xMax = xSize - margin*2;
const yMax = ySize - margin*2;
// Create Random Points const numPoints = 100;
const data = [];
for (let i = 0; i < numPoints; i++) {
data.push([Math.random() * xMax, Math.random() * yMax]);
}
// Append SVG Object to the Page const svg = d3.select("#myPlot").append("svg").append("g").attr("transform","translate(" + margin + "," + margin + ")");
// X Axis const x = d3.scaleLinear().domain([0, 500]).range([0, xMax]);
svg.append("g").attr("transform", "translate(0," + yMax + ")").call(d3.axisBottom(x));
// Y Axis const y = d3.scaleLinear().domain([0, 500]).range([ yMax, 0]);
svg.append("g").call(d3.axisLeft(y));
// Dots svg.append('g').selectAll("dot").data(data).enter().append("circle").attr("cx", function (d) { return d[0] } ).attr("cy", function (d) { return d[1] } ).attr("r", 3).style("fill", "Red");