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

[Job van de Noort]

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.

kr,
Job

[Job van de Noort]

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.