Google Charts API - Pie Chart not displaying
<p>Trying to get visualizations.PieChart working, but its drawing a blank white box with a title even though there is data. Here is my code.</p>

<pre><code>&lt;div id="globalramdonut" class="globalramdonut"&gt;&lt;/div&gt;


google.charts.load('current', {'packages':['corechart','gauge','line','controls','geochart']});
google.charts.setOnLoadCallback(drawAllCharts);

var ramdonutdata;
function setramdonutdata(){
    var query = "SELECT Location, SUM(RAMCapacityGB) AS 'RAM Capacity GB' FROM clusterstat WHERE Date = (SELECT MAX(Date) FROM clusterstat) GROUP BY Location ASC";
    //encode the query so we can submit it via URL.
    var urlencoded = encodeURI(sql2json+query);
    // get the data returned from 'urlencoded'
    var jsonData = $.ajax({
        url: urlencoded,
        dataType: "json",
        async: false
    }).responseText;
    console.log(urlencoded);
    // assign a google DataTable object 
    ramdonutdata = new google.visualization.DataTable(jsonData);
}

function drawRamDonut(){
    setramdonutdata();

    var options = {
        title: 'RAM Capacity by Location',
        pieHole: 0.4,
        sliceVisibilityThreshold: 0
    };

    var chart = new google.visualization.PieChart(document.getElementById('globalramdonut'));
    chart.draw(ramdonutdata,options);
}

function drawAllCharts(){
    drawRamDonut();
}
</code></pre>

<p>Here is the data returned from my PHP script....</p>

<pre><code>{"cols":[{"label":"Location","type":"string"},{"label":"RAM Capacity GB","type":"number"}],"rows":[{"c":[{"v":"Amsterdam"},{"v":"12286.34"}]},{"c":[{"v":"Argentina"},{"v":"383.97"}]},{"c":[{"v":"Belgium"},{"v":"8189.33"}]},{"c":[{"v":"Brazil"},{"v":"2047.59"}]},{"c":[{"v":"California"},{"v":"14523.22"}]},{"c":[{"v":"Guadalajara"},{"v":"767.90"}]},{"c":[{"v":"Hong Kong"},{"v":"4351.54"}]},{"c":[{"v":"Massachusetts"},{"v":"3647.56"}]},{"c":[{"v":"Ontario"},{"v":"383.97"}]},{"c":[{"v":"Oregon"},{"v":"174896.81"}]},{"c":[{"v":"Shanghai"},{"v":"1279.90"}]},{"c":[{"v":"South Korea"},{"v":"383.19"}]},{"c":[{"v":"Tennessee"},{"v":"3327.52"}]},{"c":[{"v":"Texas"},{"v":"1535.64"}]},{"c":[{"v":"Tokyo"},{"v":"719.64"}]},{"c":[{"v":"Virginia"},{"v":"44882.59"}]}]}
</code></pre>

<p>Thanks for reading.</p>