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forked from areologist's block: axes and margins
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axes and margins - responsive
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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> | |
| <style> | |
| body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; } | |
| .chart { | |
| border: 1px solid hotpink; | |
| } | |
| svg { | |
| background-color: #f3f9fc; | |
| border: 1px solid blue; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div class="chart"></div> | |
| <script> | |
| const margin = { top: 25, right: 35, bottom: 60, left: 35 }; | |
| const width = 550 - margin.left - margin.right; | |
| const height = 325 - margin.top - margin.bottom; | |
| const fullWidth = width + margin.left + margin.right; | |
| const fullHeight = height + margin.top + margin.bottom; | |
| const svg = d3.select('.chart') | |
| .append('svg') | |
| .attr('width', width + margin.left + margin.right) | |
| .attr('height', height + margin.top + margin.bottom) | |
| .call(responsivefy) | |
| .append('g') | |
| .attr('transform', 'translate(' + margin.left + ', ' + margin.top + ')'); | |
| svg.append('rect') | |
| .attr('width', width) | |
| .attr('height', height) | |
| .attr('fill', 'lightblue') | |
| .attr('stroke', 'green'); | |
| const yScale = d3.scaleLinear() | |
| .domain([0, 100]) | |
| .range([height, 0]); | |
| const yAxis = d3.axisLeft(yScale) | |
| .ticks(10); | |
| //.tickValues([0, 100]); | |
| // add the axis by passing it into d3.call (and wrap it in a <g>) | |
| svg.append('g') | |
| .call(yAxis); | |
| // let's make a date-based x axis | |
| const xScale = d3.scaleTime() | |
| .domain([new Date(2017, 0, 1), new Date(2017, 1, 1)]) | |
| .range([0, width]); | |
| const xAxis = d3.axisBottom(xScale) | |
| .ticks(5) | |
| .tickSize(20) | |
| .tickPadding(10); | |
| svg.append('g') | |
| .attr('transform', `translate(0, ${height})`) | |
| .style('font-style', 'italic') | |
| .call(xAxis); | |
| function responsivefy(svg) { | |
| // get container + svg aspect ratio | |
| var container = d3.select(svg.node().parentNode), | |
| width = parseInt(svg.style("width")), | |
| height = parseInt(svg.style("height")), | |
| aspect = width / height; | |
| // add viewBox and preserveAspectRatio properties, | |
| // and call resize so that svg resizes on inital page load | |
| svg.attr("viewBox", "0 0 " + width + " " + height) | |
| .attr("preserveAspectRatio", "xMinYMid") | |
| .call(resize); | |
| // to register multiple listeners for same event type, | |
| // you need to add namespace, i.e., 'click.foo' | |
| // necessary if you call invoke this function for multiple svgs | |
| // api docs: https://github.com/mbostock/d3/wiki/Selections#on | |
| d3.select(window).on("resize." + container.attr("id"), resize); | |
| // get width of container and resize svg to fit it | |
| function resize() { | |
| var targetWidth = parseInt(container.style("width")); | |
| svg.attr("width", targetWidth); | |
| svg.attr("height", Math.round(targetWidth / aspect)); | |
| } | |
| } | |
| </script> | |
| </body> |
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