Use google charts to display different lines, and be able to measure in the canvas

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Job van de Noort

Oct 17, 2023, 11:51:58 AM10/17/23
to Google Visualization API
Hi all,

I use google charts with success to display 2 to 10 lines with X and Y data.
Now I want to be able to draw a line or polygon in the canvas to measure a length or area.
Is this possible to do? or what should I implement to make this possible.


Job van de Noort

Oct 18, 2023, 5:28:30 AM10/18/23
to Google Visualization API
I added 2 screenshots as an example.
Screenshot 1 gives length
Screenshot 2 gives an area
Screenshot 3 shows what I got using chart.js. I can draw just 1 line and it will give me the length in pixels, not in meters according to the scale of the graph.
screenshot 2.png
screenshot 1.png
screenshot 3.png
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