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Line markers

Posted: Wed Apr 15, 2009 2:56 pm
by 13045128
we currently plot thousands of points and have opted to go with the fastline for performance reasons. With the number of traces we sometimes display it becomes important to also display a line marker. In version 4 do you support the ability to display markers with the fastline? We don't need to see a marker at every point. We would like to be able to select the option of display x markers per line.


Posted: Wed Apr 15, 2009 3:05 pm
by narcis
Hi history,

Could you please clarify which kind of marker would you like to display?

For performance reasons FastLine series doesn't support pointers (Pointer.Visible=true) as Line series does. If you want to plot pointers in a FastLine series you could use a FastLine series together with a Points series for only displaying series pointers.

On the other hand you have different options for setting series marks (Marks.Visible=true):

1. You can plot marks for all series (default behavior).
2. You can plot series marks every x points using the DrawEvery property (tChart1[0].Marks.DrawEvery = 5).
3. You can customize marks text using the GetSeriesMark event and setting to an empty string those marks you don't want to display.