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Hi,
I have the necessity to allow the user to draw one or several polygons upon a heatmap chart to let him select the region he is interested in. See attached image.

I don’t want to selected the markers inside the drawn polygon, only to know the coordinates (in data coordinates, not screen) of the various point that define the polygon.
I saw that the way to do this is to use Annotations however it’s not clear to me if is it possible to have the same behaviour of the BoxAnnotation but with a polygon (without any side number limit)?

Thank you,

Raphael

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