These images are of same graph but on zoom in zoomout of graph and on stretch and compression of window. Can any body suggest some thing to fix the problem Thanks.
Hi Graham,
The given code I tried to run. But its not working properly can you please add a sample application for me.
Thanks.
Ah, Ok,
I understand what's going on there now. One of the strategies that the data chart uses to efficiently draw large numbers of data points is to avoid drawing graphics and geometry that it doesn't have to. If you have several markers that are so close together that they would be on top of each other, it will just draw one of the markers, until you zoom in and the markers get further apart.
If you are using a LineSeries, then the chart will try to avoid selecting colliding markers, if you are using a scatter or scatter line series, there is a maximum number of markers that will be rendered defined by the MaximumMarkers property which is user adjustable, and the chart will try to select points from diverse regions of the plotting area before selecting points that are close to each other.
There is currently nothing that makes one marker more important than another to the chart, so in the first set of screenshots you posted, some of the markers that you had affixed labels to were hidden by chance, and others remained visible.
In these more recent screenshots you can see a more regular hiding of points because they are too close to the others.
It seems like what you are trying to accomplish is to mark certain markers as "Important" so that they will be gauranteed to display because they have an annotation. We don't currently have a feature built in to the chart to support this, but you could make a feature request.
Since the same feature has been requested recently in another forum post, I provided a sample to show how you could add your own point annotations that will be gauranteed to display since the series won't automatically cull them like the regular markers. See here:
http://community.infragistics.com/forums/p/46486/252956.aspx#252956
Hope this helps!
-Graham
I am using line serie and on default markes its hidding or skipping 12 marker points on each series, and each series contains 730 points. Please find attached screen shot of graph with default markers or markers on each point.
Hi, which series type are you using though? If you temporarily disable your custom marker, do you get the same behavior?
Thanks for your reply. well I am only using data template given bellow for the marker and rest of behaviour is default.
="SpecialMarker">
="auto">
="Stretch" >
=Item.Label}"
="Black"
="ExtraBlack"
="Center" >
>
/>
="Horizontal" >
="Green" />
="Black" />
I am not assigning any shape for marker and for data manupolation I am assigning Labels for cirtain points only.