Mouse Hover over XY chart to obtain the X axis value

[chaoliang]

I have a xy chart, like below.
When the mouse hovers over each bar, is there any way I can obtain the x axis value (1....44) of the bar?
Not sure which event should I trigger on the XY chart?

[Transistor]

Have a look at what I wrote in the link below. In my case the X-axis value was a date. It looks like you are using a category so you may need to experiment.

Perspective XY Chart xAxes tooltip text {dateX}

An example tooltip with date, time and day of week. [XY Chart tooltip with time] Machine: [bold]{name}[/] Count: [bold]{valueY}[/] Date: [bold]{dateX.formatDate('yyyy-MMM-dd')}[/] Time: [bold]{dateX.formatDate('HH:mm EEE')}[/]

See the link to the AM Charts documentation for further ideas.

[chaoliang]

Thanks. I went through your post, it works well for the tooltip modification. After adding the {categoryX} I can see the index value when hovering over each bar.

But I have difficulty to take out the {categoryX} value, which is the index value I want to take, and link this value to a separate label component.

I tried to link the property or creating a custom property, to link the tooltip text, it shows only the static string "{categoryX}", not the actual value.

[Transistor]

See my answer to your duplicate question.

X-Value in XY Chart Bullet Tooltip

You can't. This was explained by PGriffith above in post 5.

[chaoliang]

Thanks.

It looks like there is no way to extract the {categoryX} value from the XY chart.

[chaoliang]

get some idea from the following post.

Get value from hovered slice in a Pie Chart

Anyone knows how to get the value from the currently hovered slice in a pie chart? In the below figure, the value 21438 should be collected, and written to a custom property in e.g. another component: [image] Ignition version 8.1.0 Thanks!

by enabling the selection, I can now get the index value.
the format is:

../XYChart.props.selection.data[0].index

[Transistor]

I never spotted that before - and I've used XY Chart many times.
It looks like you have to actually select - not just hover.

Thanks for the update.