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I've added Google chart to the head of my page. This returns an image of a chart.
I simply need to add a second chart to the same page.
The code for the second chart is ignored. I largely suspect this is due to me incorrectly combining the code for each chart.
First chart (line):
<!--Load the AJAX API--> <script type="text/javascript" src="https://www.google.com/jsapi"></script> <script type="text/javascript"> // Load the Visualization API and the piechart package. google.load('visualization', '1.0', {'packages':['corechart']}); // Set a callback to run when the Google Visualization API is loaded. google.setOnLoadCallback(drawChart); // Callback that creates and populates a data table, // instantiates the pie chart, passes in the data and // draws it. function drawChart() { var data = new google.visualization.DataTable(); data.addColumn('string', 'Month'); data.addColumn('number', 'Apples'); data.addColumn('number', 'Oranges'); data.addRows([ ['Oct 11', 20, 0], ['Nov 11', 0, 0], ['Dec 12', 0, 20], ['Jan 12', 0, 10], ['Feb 12', 0, 10], ['March 12', 10, 10] ]); // Set chart options var options = {'width':960, 'height':300}; // Instantiate and draw our chart, passing in some options. var chart = new google.visualization.LineChart(document.getElementById('line_chart')); chart.draw(data, options); } </script> Second chart (pie):
<!--Load the AJAX API--> <script type="text/javascript" src="https://www.google.com/jsapi"></script> <script type="text/javascript"> // Load the Visualization API and the piechart package. google.load('visualization', '1.0', {'packages':['corechart']}); // Set a callback to run when the Google Visualization API is loaded. google.setOnLoadCallback(drawChart); // Callback that creates and populates a data table, // instantiates the pie chart, passes in the data and // draws it. function drawChart() { // Create the data table. var data = new google.visualization.DataTable(); data.addColumn('string', 'Topping'); data.addColumn('number', 'Slices'); data.addRows([ ['Mushrooms', 3], ['Onions', 1], ['Olives', 1], ['Zucchini', 1], ['Pepperoni', 2] ]); // Set chart options var options = {'title':'How Much Pizza I Ate Last Night', 'width':400, 'height':300}; // Instantiate and draw our chart, passing in some options. var chart = new google.visualization.PieChart(document.getElementById('chart_div')); chart.draw(data, options); } </script> Each of the charts are called in the body using a container div with a unique id:
<div id="chart_div"></div> How do I stitch these two blocks of code together? I've tried copying drawChart() and specifying unique function names and variables but to no avail.
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Overview. A chart that lets you render each series as a different marker type from the following list: line, area, bars, candlesticks, and stepped area. To assign a default marker type for series, specify the seriesType property. Use the series property to specify properties of each series individually.
I now have a working solution. It involved discerning which parts of the example code to duplicate and what not to duplicate (as suggested by Oofpez). The data, options and chart variables for EACH of your charts are defined within the ONE drawChart() function.
Here is a working example (just copy and paste into a HTML document):
...This example further demonstrates how to combine different chart types i.e. pie and line...
<html> <head> <!--Load the AJAX API--> <script type="text/javascript" src="https://www.google.com/jsapi"></script> <script type="text/javascript"> // Load the Visualization API and the piechart package. google.load('visualization', '1.0', {'packages':['corechart']}); // Set a callback to run when the Google Visualization API is loaded. google.setOnLoadCallback(drawChart); // Callback that creates and populates a data table, // instantiates the pie chart, passes in the data and // draws it. function drawChart() { // Create the data table. var data = new google.visualization.DataTable(); data.addColumn('string', 'Topping'); data.addColumn('number', 'Slices'); data.addRows([ ['Mushrooms', 3], ['Onions', 1], ['Olives', 1], ['Zucchini', 1], ['Pepperoni', 2] ]); // Create the data table. var data2 = new google.visualization.DataTable(); data2.addColumn('string', 'Topping'); data2.addColumn('number', 'Slices'); data2.addRows([ ['Mushrooms', 3], ['Onions', 1], ['Olives', 15], ['Zucchini', 1], ['Pepperoni', 2] ]); var data3 = new google.visualization.DataTable(); data3.addColumn('string', 'Year'); data3.addColumn('number', 'Sales'); data3.addColumn('number', 'Expenses'); data3.addRows([ ['2004', 1000, 400], ['2005', 1170, 460], ['2006', 860, 580], ['2007', 1030, 540] ]); // Set chart options var options = {'title':'How Much Pizza I Ate Last Night', 'width':400, 'height':300}; // Set chart options var options2 = {'title':'How Much Pizza You Ate Last Night', 'width':400, 'height':300}; // Set chart options var options3 = {'title':'Line chart', 'width':400, 'height':300}; // Instantiate and draw our chart, passing in some options. var chart = new google.visualization.PieChart(document.getElementById('chart_div')); chart.draw(data, options); var chart2 = new google.visualization.PieChart(document.getElementById('chart_div2')); chart2.draw(data2, options2); var chart3 = new google.visualization.LineChart(document.getElementById('chart_div3')); chart3.draw(data3, options3); } </script> </head> <body> <!--Divs that will hold the charts--> <div id="chart_div"></div> <div id="chart_div2"></div> <div id="chart_div3"></div> </body> </html> Basically you can wrap function drawChart for parameters to pass on like:
function drawChart(chartType, containerID, dataArray, options) and
call google.setOnLoadCallback(function() { drawChart('barChart', 'div_id_1', test_array, null); }); as many times as much you want to render graphs:
var test_array = [ ['Name', 'Count-A', 'Count-B'], ['Test-A', 4, 3], ['Test-B', 1, 2], ['Test-C', 3, 4], ['Test-D', 2, 0], ['Test-E', 2, 5] ]; google.load("visualization", "1", {packages: ["corechart",'table']}); google.setOnLoadCallback(function() { drawChart('barChart', 'div_id_1', test_array, null); }); google.setOnLoadCallback(function() { drawChart('columnChart', 'div_id_2', test_array, null); }); function drawChart(chartType, containerID, dataArray, options) { var data = google.visualization.arrayToDataTable(dataArray); var containerDiv = document.getElementById(containerID); var chart = false; if (chartType.toUpperCase() == 'BARCHART') { chart = new google.visualization.BarChart(containerDiv); } else if (chartType.toUpperCase() == 'COLUMNCHART') { chart = new google.visualization.ColumnChart(containerDiv); } else if (chartType.toUpperCase() == 'PIECHART') { chart = new google.visualization.PieChart(containerDiv); } else if (chartType.toUpperCase() == 'TABLECHART') { chart = new google.visualization.Table(containerDiv); } if (chart == false) { return false; } chart.draw(data, options); } If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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