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D3 v5 Line chart with mouseover interaction effects
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| <!DOCTYPE html> | |
| <html lang="en-US"> | |
| <meta charset="utf-8"> | |
| <head> | |
| <!-- Load in the d3 library --> | |
| <script src="https://d3js.org/d3.v5.min.js"></script> | |
| <style> | |
| div.tooltip { | |
| position: absolute; | |
| text-align: center; | |
| width: 140px; | |
| height: 50px; | |
| padding: 2px; | |
| font: 12px sans-serif; | |
| background: lightgreen; | |
| border: 0px; | |
| border-radius: 8px; | |
| pointer-events: none; | |
| } | |
| html { | |
| font: normal 100%/1.4 Georgia,serif; | |
| background: #eff4f0; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <h1 align = 'center'>United States Wind Energy Production</h1> | |
| <div id="visualization" align="center"></div> | |
| <!--SVG is appended to this div--> | |
| </div> | |
| <h3 align = 'center'>Turbine Data: https://eerscmap.usgs.gov/uswtdb/data/</h3> | |
| <h3 align = 'center'>Energy Production Data: https://windexchange.energy.gov/maps-data/321</h3> | |
| <script> | |
| let margin = {top: 20, right: 20, bottom: 20, left: 50}, | |
| width = 1000 - margin.left - margin.right, | |
| height = 500 - margin.top - margin.bottom; | |
| let x = d3.scaleLinear().range([0, width]); | |
| let y = d3.scaleLinear().range([height, 0]); | |
| let pathgenerator = d3.line() | |
| .x(function(d) { return x(d.year); }) | |
| .y(function(d) { return y(d.megawatts); }); | |
| let svg = d3.select("#visualization").append("svg") | |
| .attr("width", width + margin.left + margin.right) | |
| .attr("height", height + margin.top + margin.bottom) | |
| .append("g") | |
| .attr("transform", | |
| "translate(" + margin.left + "," + margin.top + ")"); | |
| let div = d3.select("body").append("div") | |
| .attr("class", "tooltip") | |
| .style("opacity", 0); | |
| d3.csv("turbine_efficiency.csv").then(function(data) { | |
| // format the data | |
| data.forEach(function(d) { | |
| d.year = +d.year; | |
| d.megawatts = +d.megawatts; | |
| d.turbines = +d.turbines; | |
| d.per_bine = +d.per_bine; | |
| }); | |
| // Scale the range of the data | |
| x.domain(d3.extent(data, function(d) { return d.year; })); | |
| y.domain([0, d3.max(data, function(d) { return d.megawatts; })]); | |
| // Add the path. | |
| svg.append("path") | |
| .data([data]) | |
| .attr("class", "line") | |
| .attr("d", pathgenerator) | |
| .style("fill", "none") | |
| .style("stroke", "black"); | |
| //Insert Circles | |
| svg.selectAll("circle") | |
| .data(data) | |
| .enter() | |
| .append("circle") | |
| .attr("r", 6) | |
| .attr("cx", function(d){return x(d.year);}) | |
| .attr("cy", function(d){return y(d.megawatts);}) | |
| .style("fill", function(d) { | |
| if(d.per_bine > 1.5) { | |
| return "green"; | |
| } else if(d.per_bine > 1) { | |
| return "blue"; | |
| } else if(d.per_bine > .5) { | |
| return "orange"; | |
| } | |
| return "red"; | |
| }) | |
| .on("mouseover", function(d) { | |
| div.style("opacity", .9); | |
| div.html("MegaWatts: " + d.megawatts | |
| + "</br>" + "Turbines: " + d.turbines | |
| + "</br>" + "MW/T: " + d.per_bine) | |
| .style("left", (d3.event.pageX) + "px") | |
| .style("top", (d3.event.pageY - 28) + "px"); | |
| }) | |
| .on("mouseout", function(d) { | |
| div.style("opacity", 0); | |
| }); | |
| let formatxAxis = d3.format('.0f'); | |
| // Add the X Axis | |
| svg.append("g") | |
| .attr("transform", "translate(0," + height + ")") | |
| .call(d3.axisBottom(x).tickFormat(formatxAxis)); | |
| // Add the Y Axis | |
| svg.append("g") | |
| .call(d3.axisLeft(y)); | |
| }); //End CSV | |
| </script> | |
| </body> | |
| </html> |
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| year | megawatts | turbines | per_bine | |
|---|---|---|---|---|
| 1999 | 2472.48 | 6983 | 0.3541 | |
| 2000 | 2539.32 | 7073 | 0.3590 | |
| 2001 | 4231.77 | 8903 | 0.4753 | |
| 2002 | 4687.36 | 9364 | 0.5006 | |
| 2003 | 6349.94 | 10520 | 0.6036 | |
| 2004 | 6723.12 | 10849 | 0.6197 | |
| 2005 | 9147.06 | 12504 | 0.7315 | |
| 2006 | 11574.51 | 14009 | 0.8262 | |
| 2007 | 16907.05 | 17212 | 0.9823 | |
| 2008 | 25410.04 | 22240 | 1.1425 | |
| 2009 | 34863.35 | 28043 | 1.2432 | |
| 2010 | 40266.96 | 30995 | 1.2991 | |
| 2011 | 46916.1 | 34567 | 1.3573 | |
| 2012 | 60005 | 41281 | 1.4536 | |
| 2013 | 61108 | 41888 | 1.4588 | |
| 2014 | 65877 | 44400 | 1.4837 | |
| 2015 | 74472 | 48700 | 1.5292 | |
| 2016 | 82171 | 52553 | 1.5636 |
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