Using d3@5 and selection.join().
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Created
May 7, 2019 23:19
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Simple Scatterplot with d3@5
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| license: mit |
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| <!DOCTYPE html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <script src="https://d3js.org/d3.v5.min.js"></script> | |
| <style> | |
| body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; } | |
| </style> | |
| </head> | |
| <body> | |
| <script> | |
| var margin = { top: 20, left: 50, right: 10, bottom: 50 }; | |
| var width = 500; | |
| var height = 500; | |
| var svg = d3.select("body").append("svg") | |
| .attr("height", height) | |
| .attr("width", width); | |
| var xScale = d3.scaleLinear() | |
| .range([0, width - margin.left - margin.right]); | |
| var yScale = d3.scaleLinear() | |
| .range([height - margin.top - margin.bottom, 0]); | |
| var cScale = d3.scaleOrdinal(d3.schemeCategory10); | |
| function xAxis(g) { | |
| g.attr("transform", `translate(0, ${height - margin.bottom - margin.top})`) | |
| .call(d3.axisBottom(xScale)); | |
| } | |
| function yAxis(g) { | |
| g.call(d3.axisLeft(yScale)); | |
| } | |
| function parseRow(d) { | |
| return { | |
| sepal_length: +d.sepal_length, | |
| sepal_width: +d.sepal_width, | |
| petal_length: +d.petal_length, | |
| petal_width: +d.petal_width, | |
| species: d.species | |
| } | |
| } | |
| function main(data) { | |
| console.log(data); | |
| xScale.domain(d3.extent(data, d => d.sepal_width)); | |
| yScale.domain(d3.extent(data, d => d.sepal_length)); | |
| var g = svg.append("g") | |
| .attr("transform", `translate(${margin.left}, ${margin.top})`) | |
| g.append("g").call(xAxis); | |
| g.append("g").call(yAxis); | |
| g.selectAll("circle") | |
| .data(data) | |
| .join("circle") | |
| .attr("cx", d => xScale(d.sepal_width)) | |
| .attr("cy", d => yScale(d.sepal_length)) | |
| .attr("fill", d => cScale(d.species)) | |
| .attr("r", 2.5); | |
| } | |
| d3.csv("https://gist.githubusercontent.com/clhenrick/fe82108ca72121b3e2000ced4e36a53b/raw/eedfd982b5324d62c2c2b69171b937db73f41f29/flowers.csv", parseRow) | |
| .then(main); | |
| </script> | |
| </body> |
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