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| license: mit |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
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| <!DOCTYPE html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <script src="https://d3js.org/d3.v4.min.js"></script> | |
| <style> | |
| body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; } | |
| </style> | |
| </head> | |
| <body> | |
| <div id='chart'></div> | |
| <script> | |
| const numPerRow = 20; | |
| // const size= 20; | |
| let width = 800; | |
| let height = 400; | |
| let size = Math.round(width / numPerRow); | |
| const scale = d3.scaleLinear() // <-A | |
| .domain([0, numPerRow -1]) | |
| .range([0, size * numPerRow]) | |
| let sel = d3.select('#chart') | |
| .append('svg') | |
| .attr('width', height) | |
| .attr('height', width); | |
| sel.selectAll('rect') | |
| .data(d3.range(220)) // <-B | |
| .enter().append('rect') | |
| .attr('x', (d, i) => { | |
| const n = i % numPerRow // <-C | |
| return scale(n) | |
| }) | |
| .attr('y', (d, i) => { | |
| const n = Math.floor(i / 10) // <-D | |
| return scale(n) | |
| }) | |
| .attr('width', size) | |
| .attr('height', size) | |
| .attr('fill', 'tomato') | |
| .attr('stroke-width', 2) | |
| .attr('stroke', 'white') | |
| </script> | |
| </body> |
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