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September 11, 2019 19:51
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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 src="script.js"></script> | |
| </body> |
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| // Feel free to change or delete any of the code you see in this editor! | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", 960) | |
| .attr("height", 500) | |
| const colorScale = d3.scaleOrdinal() | |
| .domain(["apple", "lemon"]) | |
| .range(["darkred", "yellow"]); | |
| const radiusScale = d3.scaleOrdinal() | |
| .domain(["apple", "lemon"]) | |
| .range([50, 25]); | |
| const render = (selection, props) => { | |
| const circles = selection.selectAll("circle").data(props, d => d.id); | |
| circles | |
| .enter() | |
| .append("circle") | |
| .attr("cy", 200) | |
| .attr("r", 0) | |
| .attr("cx", (d,i) => i * 120 + 60) | |
| .merge(circles) | |
| .transition() | |
| .duration(750) | |
| .attr("cx", (d,i) => i * 120 + 60) | |
| .style("fill", d => colorScale(d.type)) | |
| .attr("r", d => radiusScale(d.type)); | |
| circles | |
| .exit() | |
| .transition() | |
| .duration(750) | |
| .attr("r", 0) | |
| .style("opacity", 0) | |
| .remove(); | |
| } | |
| const makeFruit = (type) => { | |
| return {type, id: Math.random()} | |
| } | |
| let fruits = d3.range(5).map(function(d){ | |
| return makeFruit("apple") | |
| }); | |
| render(svg,fruits) | |
| setTimeout(() => { | |
| fruits.pop(); | |
| render(svg,fruits) | |
| }, 1000) | |
| // replace apple with lemon | |
| setTimeout(() => { | |
| fruits[2].type = "lemon" | |
| console.log(fruits) | |
| render(svg,fruits) | |
| }, 2000) | |
| setTimeout(() => { | |
| fruits = fruits.filter((d,i) => i !== 1); | |
| render(svg,fruits) | |
| }, 3000) | |
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