TeeChart fast draw in TFastLineSeries

Question

I am using evaluation version of TeeChart VCL v2012 in Embarcadero C++Builder XE. In my program I get about one thousand of points every second and put them into FastLineSeries. To put points into seraies I use AddXY method. When I run my application, it tooks about 20% of processor time on 3 series. I was wonder if you could give me some advice how to improve performance of adding and drawing series?

Answer 1

I'd suggest you to try to implement as many tips as possible from those explained in the Real-Time Charting article here. Resuming:

• Disable/hide some chart elements
• Populate series with data. Use arrays and remove unneeded points. See an example in the features demo at "All features\Welcome !\Speed\Fast Dynamic Arrays"

Other tips:

• If you are adding many points at a time, try setting AutoRepaint=false before the addition, and back to AutoRepaint=true after it.
• Use the TFastLineSeries's DrawAllPoints property. See an example in the features demo at "All features\Welcome !\Speed\Fast Line Speed DrawAll".
• Use the TDownSampling function. See an example in the features demo at "All features\Welcome !\Functions\Extended\Reducing number of points".

And also look at the other examples in the features demo under "All features\Welcome !\Speed".

NOTE: The features demo is an application shipped with the installation that shows the majority of features supported by the component.