Hi,

There are numerous issues with your code, and none of them have to do with
fact that you're doing log scale.

Your first issue is that you're using google.setOnLoadCallback wrong. You
must pass it a function reference, but you are passing it the result of a
function call (in this case, the value 'undefined', since drawChart doesn't
return anything).

Another thing you're doing wrong is calling google.setOnLoadCallback after
the page loads (as evidenced by the fact that you're using $.ready).
google.setOnLoadCallback
won't work if your page has already loaded. This issue has been fixed with
our new loader (google.charts.load).

On Tue, Feb 2, 2016 at 10:46 AM SL <[email protected]> wrote:

> Hello,
>
> I am trying to set a log scale in both hAxis and vAxis when I refresh the
> page (through AJAX).
>
> I specify 'logScale = 'True' in options but it works for vAxis and not for
> h Axis. All my data are positive without date.
>
> Here is my code if someone could help me:
>
> Thanks!
> ------------------------------------------------
>  function drawChart(dataIn) {
>
>             var data = google.visualization.arrayToDataTable(dataIn);
>
>             var options = {
>                 legend: 'yes',
>                 pointSize: 10,
>                 hAxis: {
>                     logScale:true,
>                     scaleType:'log',
>                     gridlines: { count: 10 },
>                     title: varX2.options[varX2.selectedIndex].text
>
>                 },
>                 vAxis:{
>                     logScale: true,
>                     title: varY2.options[varY2.selectedIndex].text
>                 },
>                 series: {
>                     0: { pointShape: 'circle' },
>                     1: { pointShape: 'triangle' },
>                     2: { pointShape: 'square' },
>                     3: { pointShape: 'diamond' },
>                     4: { pointShape: 'star' },
>                     5: { pointShape: 'polygon' }
>                 }
>
>             };
>
>             var chart = new
> google.visualization.ScatterChart(document.getElementById('chart_div2'));
>
>             chart.draw(data, options);
>         }
>
>     $(document).ready(function() {
>
>             $('#button2').click(function() {
>                 $.ajax({
>                     url: 'data_json.php',
>                     type: 'POST',
>                     data:{varX2:$('#varX2').val(), varY2:$('#varY2').val()
> },
>                     success: function(json) {
>                         json = JSON.parse( json );
>                         console.log( json );
>                         google.setOnLoadCallback(drawChart(json));
>                     }
>                 });
>             });
>     });
>
> ------------------------------------------------
>
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-- 

*[image: unnamed.gif]• Sergey Grabkovsky• Software Engineer• Google, Inc•
[email protected] <[email protected]>*

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