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Everything you need to make a tooltip with d3-delaunay
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| license: mit |
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| <!DOCTYPE html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <script src="https://d3js.org/d3.v4.min.js"></script> | |
| <script src="https://unpkg.com/[email protected]/dist/d3-delaunay.js"></script> | |
| <style> | |
| body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; } | |
| </style> | |
| </head> | |
| <body> | |
| <script> | |
| // 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) | |
| x=d3.scaleLinear().range([0,960]).domain([0,960]) | |
| y=d3.scaleLinear().range([0,500]).domain([0,500]) | |
| data=d3.range(960).map(function(d){return [x(d*Math.random()),y(d*Math.random())]}) | |
| svg.selectAll(".circle").data(data).enter().append('circle').attr('cx',function(d){return d[0]}).attr('cy',function(d){return d[1]}).attr('r',3) | |
| var delaunay = d3.Delaunay.from(data) | |
| svg.on('mousemove',function(d){ | |
| console.log(data[delaunay.find(x.invert(d3.mouse(this)[0]),y.invert(d3.mouse(this)[1]))]) | |
| }) | |
| </script> | |
| </body> |
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