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<!DOCTYPE html> |
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<head> |
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<link href="https://fonts.googleapis.com/css?family=Oxygen" rel="stylesheet"> |
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</head> |
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<meta charset="utf-8"> |
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<style> /* set the CSS */ |
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body { font: 12px Arial;} |
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path { |
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stroke: steelblue; |
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stroke-width: 2; |
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fill: none; |
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} |
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.axis path, |
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.axis line { |
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fill: none; |
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stroke: black; |
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stroke-width: 2; |
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shape-rendering: crispEdges; |
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} |
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.axisLabels |
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{ |
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font-family: 'Oxygen', sans-serif; |
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font-size: 15px; |
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} |
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.chartTitle |
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{ |
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font-size: 17px; |
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font-family: 'Oxygen'; |
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} |
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</style> |
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<body> |
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<!-- load the d3.js library --> |
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<script src="https://d3js.org/d3.v4.min.js"></script> |
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<script> |
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// Set the dimensions of the canvas / graph |
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var margin = {top: 20, right: 200, bottom: 50, left: 80}, |
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width = 1024 - margin.left - margin.right, |
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height = 600 - margin.top - margin.bottom; |
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// Set the ranges |
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var x = d3.scaleLinear().range([0, width]), |
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y = d3.scaleLinear().range([height, margin.top]); |
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// Define the line |
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var priceline = d3.line() |
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.x(function(d) { return x(d.año); }) |
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.y(function(d) { return y(d.utilidad); }); |
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// Adds the svg canvas |
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var svg = d3.select("body") |
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.append("svg") |
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.attr("width", width + margin.left + margin.right) |
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.attr("height", height + margin.top + margin.bottom) |
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.append("g") |
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.attr("transform", |
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"translate(" + margin.left + "," + margin.top + ")"); |
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// Get the data |
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d3.csv("formatted_data.csv", function(error, data) { |
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//This is for assuring that the data is correctly interpreted by JavaScript |
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data.forEach(function(d) { |
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d.año = parseInt(d.año); |
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d.utilidad = parseInt(d.utilidad); |
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d.rentabilidad = parseInt(d.rentabilidad); |
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}); |
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//Obtaining maximum, minimum values, and number of years |
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var yMaxScale = d3.max(data, function(d) { return d.utilidad; }), |
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yMinScale = d3.min(data, function(d) { return d.utilidad; }), |
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xMinScale = d3.min(data, function(d) { return d.año; }), |
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xMaxScale = d3.max(data, function(d) { return d.año; }), |
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uniqueYears = d3.map(data, function(d){return d.año}).keys().length; |
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// Scale with the range of the data |
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x.domain([xMinScale, xMaxScale]); |
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y.domain([yMinScale, yMaxScale]); |
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// Nest the entries by symbol |
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var dataNest = d3.nest() |
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.key(function(d) {return d.cultivo;}) |
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.entries(data); |
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// set the colour scale |
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var color = d3.scaleOrdinal(d3.schemeCategory20); |
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var legendSpace = 20; // spacing for the legend in arbitrary units |
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// Loop through each symbol / key |
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dataNest.forEach(function(d,i) { |
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svg.append("path") |
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.attr("class", "line") |
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.style("stroke", "#ddd") |
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.attr("id", 'tag'+d.key.replace(/\s+/g, '')) // assign an ID |
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.attr("d", priceline(d.values)) |
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.attr("opacity", 0.2) |
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.on("click", function(){ |
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// Determine if current line is visible |
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var active = d.active ? false : true, |
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newColor = active ? color(d.key) : "#ddd"; |
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newOpacity = active ? 1 : 0.2; |
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// Hide or show the elements upon clicking the key on the right |
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d3.select(this) |
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.transition().duration(300) |
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.style("stroke", newColor) |
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.style("opacity", newOpacity); |
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//Change the behaviour of the text |
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d3.select(".legend"+d.key.replace(/\s+/g, '')) |
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.style("fill", newColor); |
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// Update whether or not the elements are active |
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d.active = active; |
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}) ; |
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// Add the Legend |
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svg.append("text") |
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.attr("x", width + (legendSpace) ) // space legend |
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.attr("y", height - (i*20)) |
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.attr("font-weight", "bold") |
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.attr("class", 'legend'+d.key.replace(/\s+/g, '')) // style the legend |
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.style("fill", "#ddd") |
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.on("click", function(){ |
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// Determine if current line is visible |
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var active = d.active ? false : true, |
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newColor = active ? color(d.key) : "#ddd"; |
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newOpacity = active ? 1 : 0.2; |
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// Hide or show the elements upon clicking the key on the right |
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d3.select("#tag"+d.key.replace(/\s+/g, '')) |
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.transition().duration(300) |
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.style("stroke", newColor) |
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.style("opacity", newOpacity); |
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//Change the behaviour of the text |
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d3.select(this) |
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.transition().duration(300) |
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.style("fill", newColor); |
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// Update whether or not the elements are active |
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d.active = active; |
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}) |
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.text(d.key); |
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}); |
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var axisLabelProperties = {yOffset: -60, yHeight:-(height/1.5), xLength: width/2, xOffset: height + margin.bottom}; |
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// Add the X Axis |
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svg.append("g") |
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.attr("class", "axis") |
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.attr("transform", "translate(0," + height + ")") |
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.call(d3.axisBottom(x).ticks(uniqueYears).tickFormat(d3.format("d"))); |
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//Add the X axis label |
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svg.append("text") |
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.text("Año") |
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.attr("class", "axisLabels") |
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.attr("x",axisLabelProperties.xLength) |
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.attr("y",axisLabelProperties.xOffset); |
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// Add the Y Axis |
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svg.append("g") |
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.attr("class", "axis") |
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.call(d3.axisLeft(y)); |
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//Add the Y Axis label |
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svg.append("text") |
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.text("Utilidad (Millones de pesos)") |
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.attr("class", "axisLabels") |
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.attr("transform", "rotate(-90)") |
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.attr("x", axisLabelProperties.yHeight) |
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.attr("y", axisLabelProperties.yOffset); |
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//Add the chart title |
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svg.append("text") |
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.text("Rentabilidad de los productos agrícolas de Sucre en el periodo 2011 - 2015") |
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.attr("x", width/7) |
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.attr("y", 0) |
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.attr("class", "chartTitle"); |
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}); |
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</script> |
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</body> |
