This demo explicitly sets the container height, which make a dynamic SVG graphic responsive (based on this stackoverflow answer).
Note: This solves a problem with IE.
Last active
January 4, 2017 14:46
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Responsive circles
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <title>responsive circles</title> | |
| <style> | |
| body { | |
| margin: 0; | |
| } | |
| #container { | |
| padding: 5% 5%; /* (top & bottom) (left & right) */ | |
| width: 90%; /* container fits window (accommodates padding) */ | |
| background-color: #666; | |
| } | |
| #graphic { | |
| background-color: #ccc; | |
| } | |
| </style> | |
| <script src="https://d3js.org/d3.v4.min.js"></script> | |
| <body> | |
| <div id='container'></div> | |
| <script> | |
| var n = 6, // "n" random circles determine the SVG's aspect ratio | |
| radii = d3.range(n).map(function(){ return Math.random(); }), | |
| x = radii.map(function(d, i) { return d + 2 * d3.sum( radii.slice(0, i) ); }), | |
| width = 2 * d3.sum(radii), | |
| height = 2 * d3.max(radii); | |
| var container = d3.select("#container"); | |
| var svg = container.append('svg') | |
| .attr('id', 'graphic') | |
| .attr('viewBox', "0, 0, " + width + ", " + height) // min-x, min-y, width, height | |
| .attr('preserveAspectRatio', "xMinYMid"); | |
| svg.selectAll('circle') | |
| .data(radii) | |
| .enter() | |
| .append('circle') | |
| .attr('r', function(d) { return d; }) | |
| .attr('cx', function(d,i) { return x[i]; }) | |
| .attr('cy', height / 2) | |
| .style('fill', function(d,i) { return d3.schemeCategory10[i]; }); | |
| // Set the container height explicitly (fixes IE problem) | |
| setContainerHeight(); | |
| d3.select(window).on('resize', setContainerHeight); | |
| function setContainerHeight() { | |
| var w = parseInt( container.style("width"), 10); // computed width | |
| var a = width / height; // = aspect ratio to be applied to the container | |
| container.style('height', w / a + 'px'); | |
| } | |
| </script> |
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