jpnavarini wrote at 2012-05-29 00:19:
I have to do plots with a large quantities of data (around 300k), and I must have markers in the plot, which makes its drawing VERY slow. Therefore, I need to change the cursor to wait while OxyPlot is drawing my graph. Is it possible?
objo wrote at 2012-05-30 23:00:
The PlotModel class has two events: Updating and Updated. Try to subscribe to these, they are raised before and after the plot is updated (which probably takes most of the time).
I have not added any events before/after the visual tree is updated, but this should be easy to add if needed (in the OxyPlot.Wpf.Plot.UpdateVisuals method).
If drawing is very slow:
- check that the binding of the data is as efficient as possible (see the performance examples (100k points) in the example browser)
- if using the scatter series, consider using the "binning" functionality
jpnavarini wrote at 2012-05-30 23:28:
I could not find both of these events> Updating or Updated.
Regarding the drawing speed, it gets slower because I am using ItemsSource to get the data and because I am using markers. Is there a marker that is the fastest or they are all basically the same?
objo wrote at 2012-05-30 23:42:
See OxyPlot.PlotModel.Updating/Updated (you cannot do this from xaml)
jpnavarini wrote at 2012-05-31 16:29:
I still can't find the Updating method in OxyPlot,.PlotModel. The Updated event is OK.
I have been trying to do it in the code behind, not on XAML. I have checked, my OxyPlot library seems to be the latest (v4.0.30319). I don't know exactly what can be wrong.
objo wrote at 2012-05-31 21:11:
That is strange. Are you using the version from the Download page?
I recommend using the Nuget package or build from the latest source, the download is a bit old (I am planning to update this soon - will check the codeplex api if I can automate this part of the process).
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