TeeChart VCL for Borland/CodeGear/Embarcadero RAD Studio, Delphi and C++ Builder.
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X-ray
- Newbie
- Posts: 13
- Joined: Thu Dec 15, 2022 12:00 am
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by X-ray » Thu Jul 10, 2025 1:23 pm
Hello,
We have some performance problems drawing large TColorGridSeries of sparse matrices, see attached plot. Basically, there is only the small diagonal patch in the middle where there is data to plot:
- IsoLinesPlotScreenshot 2025-07-10 150510.png (359.69 KiB) Viewed 406 times
The area of the Red Triangles is empty and doesn’t contain any data. Is there a way to speed up handling and drawing by telling the plot that there are parts of the data that don’t need to be plotted?
Thanks and best regards,
Thomas
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Yeray
- Site Admin
- Posts: 9712
- Joined: Tue Dec 05, 2006 12:00 am
- Location: Girona, Catalonia
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Post
by Yeray » Fri Jul 11, 2025 10:24 am
Hello Thomas,
Do you have a simple example we can run as-is to reproduce the situation here?
Thanks in advance.
