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Stacked Area Chart with Google Charts and NVD3
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| <html> | |
| <head> | |
| <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/nvd3/1.7.0/nv.d3.min.css"> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.6/d3.min.js"></script> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.3/underscore-min.js"></script> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/nvd3/1.7.0/nv.d3.min.js"></script> | |
| <script src="https://code.jquery.com/jquery-2.1.3.min.js"></script> | |
| <script type="text/javascript" src="https://www.google.com/jsapi"></script> | |
| <script type="text/javascript" src="main.js"></script> | |
| </head> | |
| <body> | |
| <div id="chart"> | |
| <svg style="width:80%; height:800px"></svg> | |
| </div> | |
| <div id="chart_div" style="width:80%; height:800px"></div> | |
| </body> | |
| </html> |
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| google.load("visualization", "1", {packages:["corechart"]}); | |
| google.setOnLoadCallback(main); | |
| function main() { | |
| url = "https://spreadsheets.google.com/feeds/list/1vLXTX80VMPvqCiyL62V2VNRJraAsyKSo1F8E6RXgnJo/2/public/values?alt=json" | |
| $.getJSON(url, function(json){ | |
| var data = clean_google_sheet_json(json); | |
| var google_chart_data = prepare_data_for_google_chart(data); | |
| draw_google_chart(google_chart_data); | |
| var nvd3_chart_data = prepare_data_for_nvd3_chart(data); | |
| draw_nvd3_chart(nvd3_chart_data); | |
| }); | |
| } | |
| function prepare_data_for_google_chart(data) { | |
| var first_row = _.keys(data[0]); | |
| var chart_data = [first_row]; | |
| _.each(data, function(datum) { | |
| var row = []; | |
| _.each(first_row, function(key) { | |
| if (datum[key]) { | |
| if (key === "year") { | |
| row.push(new Date(datum[key])); | |
| } else { | |
| // stripping away any dollar signs | |
| var amount = Number(datum[key].replace(/[^0-9\.]+/g,"")); | |
| row.push(amount); | |
| } | |
| } else { | |
| row.push(0); | |
| } | |
| }) | |
| chart_data.push(row); | |
| }); | |
| //console.log(chart_data); | |
| return chart_data; | |
| } | |
| function draw_google_chart(chart_data) { | |
| var data = google.visualization.arrayToDataTable(chart_data); | |
| var options = { | |
| isStacked: true, | |
| title: 'USAC Fee', | |
| hAxis: {title: 'Year', titleTextStyle: {color: '#333'}}, | |
| vAxis: {minValue: 0} | |
| }; | |
| var chart = new google.visualization.AreaChart(document.getElementById('chart_div')); | |
| chart.draw(data, options); | |
| } | |
| function draw_nvd3_chart(chart_data) { | |
| // d3.json('data.json', function(data) { | |
| nv.addGraph(function() { | |
| var chart = nv.models.stackedAreaChart() | |
| .x(function(d) { return d[0] }) | |
| .y(function(d) { return d[1] }) | |
| .clipEdge(true) | |
| .useInteractiveGuideline(true) | |
| ; | |
| chart.xAxis | |
| .showMaxMin(false) | |
| .tickFormat(function(d) { return d3.time.format('%x')(new Date(d)) }); | |
| chart.yAxis | |
| .tickFormat(d3.format(',.2f')); | |
| d3.select('#chart svg') | |
| .datum(chart_data) | |
| .transition().duration(500).call(chart); | |
| nv.utils.windowResize(chart.update); | |
| return chart; | |
| }); | |
| // }) | |
| } | |
| function prepare_data_for_nvd3_chart(data) { | |
| var keys = _.keys(data[0]); | |
| var chart_data = []; | |
| //_.each(keys, function(key){ | |
| for (var i = 0; i < keys.length; i++) { | |
| key = keys[i]; | |
| if (key !== 'year'){ | |
| var elem = {}; | |
| elem['key'] = key; | |
| var values = []; | |
| //_.each(data, function(row) { | |
| for (var j = 0; j < data.length; j++) { | |
| var row = data[j]; | |
| var amount = row[key]; | |
| var date = Date.UTC(Number(row['year']),1,1); | |
| if (amount) { | |
| amount = Number(amount.replace(/[^0-9\.]+/g,"")); | |
| values.push([date, amount]); | |
| } else { | |
| values.push([date, 0]); | |
| } | |
| //}); | |
| } | |
| elem['values'] = values; | |
| chart_data.push(elem); | |
| } | |
| //}); | |
| } | |
| console.log(chart_data) | |
| console.log(JSON.stringify(chart_data)) | |
| return chart_data; | |
| } | |
| // takes in JSON object from google sheets and turns into a json formatted | |
| // this way based on the original google Doc | |
| // [ | |
| // { | |
| // 'column1': info1, | |
| // 'column2': info2, | |
| // } | |
| // ] | |
| function clean_google_sheet_json(data){ | |
| var formatted_json = []; | |
| var elem = {}; | |
| var real_keyname = ''; | |
| $.each(data.feed.entry, function(i, entry) { | |
| elem = {}; | |
| $.each(entry, function(key, value){ | |
| // fields that were in the spreadsheet start with gsx$ | |
| if (key.indexOf("gsx$") == 0) | |
| { | |
| // get everything after gsx$ | |
| real_keyname = key.substring(4); | |
| elem[real_keyname] = value['$t']; | |
| } | |
| }); | |
| formatted_json.push(elem); | |
| }); | |
| return formatted_json; | |
| } |
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