Draw an arrow on a graph

[Emeric]

Hello !

I have a problem:
I have a graph with 2 markers (i can move them by drag & drop) and I would like to see the distance with an arrow between them. I have that at the moment (and have the distance in the console):

I drew an arrow in canvas:

But I don’t know how to add her to my graph in order to see it between my markers.
Do some one have an idea in order to help me ?

Thank you in advance !

[Emeric]

Is that possible ?

[Bivek Singh]

@Emeric,

You can get the context of canvas using chart.ctx as shown in this example. However, re-rendering the chart will clear user drawn shapes. So, it would be better to just overlay another transparent canvas on top of chart and draw on it instead.

—-
Bivek Singh,
Team CanvasJS

[Emeric]

That’s perfect thank you !