This REPLACES the current DataTable, is there a recommended way to UPDATE
or ADD to the existing DataTable?
I believe the original poster wants to keep all the current data, but just
update from his last retrieval. How does one keep track of the last data
sent and request data from last successful request?
I assume having a global last_timestamp variable and sending that at the
end of 'path/to/data/source?last_timestamp=123456". But if the url passes
back the last minutes' worth of data, is it as simple as iterating through
the data and using chart.addRows()? Would you have to globalize chart?
On Monday, November 12, 2012 4:04:13 PM UTC-5, asgallant wrote:
>
> success: function (response) {
> var data = new google.visualization.DataTable(response);
> chart.draw(data, {
> title: "Chart1",
> hAxis: {
> title: "Time Stamp"
> },
> vAxis: {
> title: "Measured Value"
> }
> });
> }
>
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