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How do I add crosshairs to a Line chart?
How do I add crosshairs to a Line chart?
Posted by Lorri at 18:24 on Thursday 31st December 2020
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I have a Line chart that I'd like to add crosshairs when the user clicks or hovers over a point.
Thanks.
Posted by Richard at 18:37 on Thursday 31st December 2020
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The easiest way is to just use the crosshairs* properties. With the Line chart it only works with the mousemove event.
I've made you an example and it's here:
https://codepen.io/rgraph/pen/LYRdbwJ
NOTE:
Initially I said that you had to use the Scatter chart for this - but that is only if you wish to get an X/Y coordinate pair (since the Scatter chart has an X axis scale). This example shows a Line chart with crosshairs.
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