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simple bar chart
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| name | latitude | longitude | population | |
|---|---|---|---|---|
| Shanghai | 31.22222 | 121.45806 | 22315474 | |
| Buenos Aires | -34.61315 | -58.37723 | 13076300 | |
| Mumbai | 19.07283 | 72.88261 | 12691836 |
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <title>D3 Example</title> | |
| <script src="//cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script> | |
| <link href='http://fonts.googleapis.com/css?family=Poiret+One' rel='stylesheet' type='text/css'> | |
| <style> | |
| .axis text { | |
| font-family: 'Poiret One', cursive; | |
| font-size: 16pt; | |
| } | |
| .axis .label { | |
| font-size: 26pt; | |
| } | |
| .axis path, .axis line { | |
| fill: none; | |
| stroke: #000; | |
| shape-rendering: crispEdges; | |
| } | |
| .y.axis path, .y.axis line { | |
| stroke: none; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <script> | |
| var outerWidth = 500; | |
| var outerHeight = 250; | |
| var margin = { left: 130, top: 0, right: 0, bottom: 60 }; | |
| var barPadding = 0.2; | |
| var xColumn = "population"; | |
| var yColumn = "name"; | |
| var xAxisLabelText = "Population"; | |
| var xAxisLabelOffset = 55; | |
| var innerWidth = outerWidth - margin.left - margin.right; | |
| var innerHeight = outerHeight - margin.top - margin.bottom; | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", outerWidth) | |
| .attr("height", outerHeight); | |
| var g = svg.append("g") | |
| .attr("transform", "translate(" + margin.left + "," + margin.top + ")"); | |
| var xAxisG = g.append("g") | |
| .attr("class", "x axis") | |
| .attr("transform", "translate(0," + innerHeight + ")") | |
| var xAxisLabel = xAxisG.append("text") | |
| .style("text-anchor", "middle") | |
| .attr("x", innerWidth / 2) | |
| .attr("y", xAxisLabelOffset) | |
| .attr("class", "label") | |
| .text(xAxisLabelText); | |
| var yAxisG = g.append("g") | |
| .attr("class", "y axis"); | |
| var xScale = d3.scale.linear().range( [0, innerWidth]); | |
| var yScale = d3.scale.ordinal().rangeBands([0, innerHeight], barPadding); | |
| var xAxis = d3.svg.axis().scale(xScale).orient("bottom") | |
| .ticks(5) // Use approximately 5 ticks marks. | |
| .tickFormat(d3.format("s")) // Use intelligent abbreviations, e.g. 5M for 5 Million | |
| .outerTickSize(0); // Turn off the marks at the end of the axis. | |
| var yAxis = d3.svg.axis().scale(yScale).orient("left") | |
| .outerTickSize(0); // Turn off the marks at the end of the axis. | |
| function render(data){ | |
| xScale.domain([0, d3.max(data, function (d){ return d[xColumn]; })]); | |
| yScale.domain( data.map( function (d){ return d[yColumn]; })); | |
| xAxisG.call(xAxis); | |
| yAxisG.call(yAxis); | |
| var bars = g.selectAll("rect").data(data); | |
| bars.enter().append("rect") | |
| .attr("height", yScale.rangeBand()); | |
| bars | |
| .attr("x", 0) | |
| .attr("y", function (d){ return yScale(d[yColumn]); }) | |
| .attr("width", function (d){ return xScale(d[xColumn]); }); | |
| bars.exit().remove(); | |
| } | |
| function type(d){ | |
| d.population = +d.population; | |
| return d; | |
| } | |
| d3.csv("geonames_cities_top3.csv", type, render); | |
| </script> | |
| </body> | |
| </html> |
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