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<!DOCTYPE html> |
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<html> |
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<head> |
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<meta charset="utf-8"> |
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<title>D3 Example</title> |
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<script src="//cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script> |
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</head> |
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<body> |
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<script> |
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// Set up the Font by appending a link tag. |
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d3.select("head").append("link") |
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.attr("href", "http://fonts.googleapis.com/css?family=Poiret+One") |
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.attr("rel", "stylesheet") |
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.attr("type", "text/css"); |
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// Here's how to apply dynamic CSS to axes through JavaScript. |
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function applyAxisStyles(){ |
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// Style tick mark labels. |
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d3.selectAll(".axis text") |
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.style("font-family", "'Poiret One', cursive") |
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.style("font-size", "16pt"); |
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// Style the axis labels. |
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d3.selectAll(".axis .label") |
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.style("font-size", "32pt"); |
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// Style the lines of the axis. |
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d3.selectAll(".axis path, .axis line") |
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.style("fill", "none") |
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.style("stroke", "black") |
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.style("shape-rendering", "crispEdges"); |
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} |
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var outerWidth = 960; |
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var outerHeight = 500; |
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var margin = { left: 80, top: 10, right: 15, bottom: 80 }; |
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var rMin = 2; // "r" stands for radius |
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var rMax = 15; |
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var xColumn = "sepal_length"; |
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var yColumn = "petal_length"; |
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var rColumn = "sepal_width"; |
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var colorColumn = "species"; |
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var xAxisLabelText = "Sepal Length (cm)"; |
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var xAxisLabelOffset = 65; |
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var yAxisLabelText = "Petal Length (cm)"; |
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var yAxisLabelOffset = 35; |
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var innerWidth = outerWidth - margin.left - margin.right; |
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var innerHeight = outerHeight - margin.top - margin.bottom; |
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var svg = d3.select("body").append("svg") |
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.attr("width", outerWidth) |
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.attr("height", outerHeight); |
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var g = svg.append("g") |
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.attr("transform", "translate(" + margin.left + "," + margin.top + ")"); |
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var xAxisG = g.append("g") |
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.attr("class", "x axis") |
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.attr("transform", "translate(0," + innerHeight + ")") |
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var xAxisLabel = xAxisG.append("text") |
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.style("text-anchor", "middle") |
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.attr("x", innerWidth / 2) |
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.attr("y", xAxisLabelOffset) |
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.attr("class", "label") |
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.text(xAxisLabelText); |
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var yAxisG = g.append("g") |
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.attr("class", "y axis"); |
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var yAxisLabel = yAxisG.append("text") |
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.style("text-anchor", "middle") |
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.attr("transform", "translate(-" + yAxisLabelOffset + "," + (innerHeight / 2) + ") rotate(-90)") |
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.attr("class", "label") |
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.text(yAxisLabelText); |
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var xScale = d3.scale.linear().range([0, innerWidth]); |
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var yScale = d3.scale.linear().range([innerHeight, 0]); |
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var rScale = d3.scale.linear().range([rMin, rMax]); |
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var colorScale = d3.scale.category10(); |
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var xAxis = d3.svg.axis().scale(xScale).orient("bottom") |
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.ticks(10) |
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.tickFormat(d3.format("s")) |
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.outerTickSize(0); |
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var yAxis = d3.svg.axis().scale(yScale).orient("left") |
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.ticks(5) |
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.tickFormat(d3.format("s")) |
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.outerTickSize(0); |
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function render(data){ |
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xScale.domain(d3.extent(data, function (d){ return d[xColumn]; })); |
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yScale.domain(d3.extent(data, function (d){ return d[yColumn]; })); |
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rScale.domain(d3.extent(data, function (d){ return d[rColumn]; })); |
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xAxisG.call(xAxis); |
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yAxisG.call(yAxis); |
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applyAxisStyles(); |
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var circles = g.selectAll("circle").data(data); |
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circles.enter().append("circle"); |
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circles |
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.attr("cx", function (d){ return xScale(d[xColumn]); }) |
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.attr("cy", function (d){ return yScale(d[yColumn]); }) |
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.attr("r", function (d){ return rScale(d[rColumn]); }) |
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.attr("fill", function (d){ return colorScale(d[colorColumn]); }); |
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circles.exit().remove(); |
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} |
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function type(d){ |
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d.sepal_length = +d.sepal_length; |
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d.sepal_width = +d.sepal_width; |
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d.petal_length = +d.petal_length; |
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d.petal_width = +d.petal_width; |
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return d; |
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} |
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d3.csv("iris.csv", type, render); |
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</script> |
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</body> |
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</html> |
