Saving a Google Chart Wrapper to image

Question

How can I save a Chart Wrapper to an image (png, jpg, bmp ... i don't care) at a click of a button.

A normal google chart is not a problem, you just need to right click on it and save as image.

But how would you save an image of a chart in a Google Chart Wrapper???

Answer 1

I think the relevant documentation you're looking for is on the Charts API Website. This method will display the chart as a PNG formatted image instead of SVG. You will lose your interactive features like tooltips and selections.

If you still want those features you could write a link that pops the static chart image into a new window to be saved.

Since you're using a ChartWrapper you will need to use something like:

var imageUri = chartWrapper.getChart().getImageURI();

The Uri it returns is a base64-encoded PNG image, which most modern browsers will render as an image if used as the src attribute for an img tag, or just entered directly into the address bar.