I recommend using a ChartWrapper to create the Gauge. Then call the ChartWrapper.draw() method without any inputs.
If you call Gauge.draw(dataTable, options), the chart is redrawn with the datatable. You might be able to call Gauge.draw() without any inputs, though I'm not sure if the Gauge supports that. The ChartWrapper does, which is one reason why it's useful for updates. hth. -- You received this message because you are subscribed to the Google Groups "Google Visualization API" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-visualization-api?hl=en.
