Markers disappear when panning the XY view

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Moderator: Arction_LasseP

SupportArchives
Posts: 16
Joined: Tue Mar 26, 2013 11:01 pm

Markers disappear when panning the XY view

Post by SupportArchives » Wed Apr 17, 2013 9:36 am

I've added SeriesEventMarkers and ChartEventMarkers in the chart. They work correctly, but when I pan the view so that the markers go under X axis minimum, and then pan back to original position, I don't see the markers anymore.
Marker in position
Marker in position
MarkerDisappear1.jpg (73.73 KiB) Viewed 7663 times
Panned left
Panned left
MarkerDisappear2.jpg (63.39 KiB) Viewed 7663 times
Panned back to right, marker has disappeared
Panned back to right, marker has disappeared
MarkerDisappear3.jpg (72.24 KiB) Viewed 7663 times
How to fix this?

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ArctionPasi
Posts: 1366
Joined: Tue Mar 26, 2013 10:57 pm
Location: Finland

Re: Markers disappear when panning the XY view

Post by ArctionPasi » Wed Apr 17, 2013 10:20 am

LightningChart has automatic destruction of out-scrolled data and markers. The chart deletes the marker in this case, when it goes under X axis minimum.
To fix that, set ViewXY.DropOldEventMarkers = False.

In v.5.1 and above, DropOldEventMarkers = True by default. In older versions, it is False by default.
LightningChart Support Team, PT