Display large data in Tee Chart

TeeChart VCL for Borland/CodeGear/Embarcadero RAD Studio, Delphi and C++ Builder.
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Gauge
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Display large data in Tee Chart

Post by Gauge » Wed Apr 25, 2007 11:41 pm

Hi,


We have been using TeeCart for years. We use Tee Chart 7.06 for Delphi 7. It is a key component of our product.

We need to display a million records or more in Tee chart, and encounter performance issue. It takes a long time in loading that huge data from the file into the graph. To load the data into the graph, our program takes two steps.
1. Read the data from the file to a memory table;
2. Have the chart component check data source.

We wonder if Step 2 could also slow down the program. If so, does TeeChart have any built-in mechnism to limit the number of data points shown on the screen or do we have to develop our custom solution?

Your reply is much appreciated.


Regards,


Meng Zhou

Pioneer Petrotech Service Inc.
Unit Q, 1235-40th Ave. N.E
Calgary, AB T2E 6M9

Narcís
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Location: Banyoles, Catalonia
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Post by Narcís » Thu Apr 26, 2007 7:19 am

Hi Meng,

To optimize TeeChart's performance I strongly recommend you to read this article at our FAQ section.

If it doesn't help don't hesitate to let us know.
Best Regards,
Narcís Calvet / Development & Support
Steema Software
Avinguda Montilivi 33, 17003 Girona, Catalonia
Tel: 34 972 218 797
http://www.steema.com
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