Steema Central

When the form is the default size, like 1024 * 768,
The ColorBandTool of TScrollPagerTool can be dragged smoothly...
But when I maximum the form size, like 1920*1024 for my display,
the dragging speed of ColorBandTool falls down seriously..

Is there any idea ?

BTW, there are about 15,000 data per Chart..

I am using the newest version for Firemonkey HD App.

Hi,

If you are using a TFastLineSeries, try using DrawAllPoints=false

Even I have set the DrawAllPoints property to False,
There is no obvious change in performance...

IF I change the data no. from 15000 to 5000, the TScrollPager can be dragged smoothly..
Do you have any other advice?

Hello,

I got some errors when trying to run your project here.
I started a new C++Builder FMX project, dropped two TCharts in the form and I've put the following code to create the series and tools at runtime.
Note I've set the series in the second chart DrawAllPoints to true:
This may depend on the machine specifications, but I see a very noticeable difference in the responsiveness. The colorband in the first chart can be dragged smoothly, the colorband in the second isn't.

Also note in Release mode both charts are faster.

Thank you.

But there are only 15000 data....
Is there any way to improve the performance...

BTW, my PC spec. is not so poor...
It can run C++Builder XE4 and other APP. smoothly...

Hello,

elmec wrote:But there are only 15000 data....
Is there any way to improve the performance...

BTW, my PC spec. is not so poor...
It can run C++Builder XE4 and other APP. smoothly...

There are several tips we use to recommend to improve the performance in any application.
See this post.