Yes, I also thought of that. But I'm lazy. Why would I do that if I can also lean back, just use a TScrollpagerTool and let TeeChart do the work?

I probably should rather investigate the performance issue for this chart than trying to make it less obvious. Thanks for your help, as always.

Understood, thanks.

I have a fancy looking long-term trend with a TScrollpagerTool. On slower machines, scrolling around is not quite smooth. Because of that, I'd like to block auto-repainting the main chart until the mousebutton is released.

Is that possible?

It does indeed look flawless. I should have put more emphasis on the " and moving the bits around ": I'm a but clueless how to implement rotating the red selection pie around. Or even make it grow or shrink (greater/smaller angle selection). It could easily be done by using additional components lik...

Imagine a user wants to select a certain range on a TLineSeries. With a TColorBandTool, it's easy to implement and easy to make look good ( like this ). Now what if we also have a polar series? The axis tools (like TColorLineTool or TColorBandTool) don't seem to work here. I fully understand that a ...

If I add a Chart1.SeriesList.FillSampleValues(); to the OnFormCreate-event, it quickly produces an access violation at runtime. Win32, VCL, XE7. Here is my callstack: 2014.12.140923 Win32 VCL :007415bc SortCells + $38 :00741854 DrawAllSorted + $B0 :00741b8a TSurfaceSeries.DrawAllValues + $152 :0074c...

Thanks for the Benchmark. But please note that both of us were perfectly fine with the OpenGL initialization taking a bit of time. Our main gripe was the fact the main thread is blocked. If it really has to be the main thread, please give us a way to do it in advance. When, for example, the TChart i...

Awesome!

And making this property public means users should still set it for each chart. No, why? Take the example you posted. Replace the hardcoded "False" with a public class variable "HoverGloballyEnabled". Done. This way, annoying persons like me just need to set a single variable once. They now have th...

You can do a lot of cool stuff with a TColorBandTool. Drag it around, resize it, whatever. As long as you have a mouse it works flawlessly. TColorBand_Cursor.png Now what if we have a touchscreen? You can still move the selection around easily, but the start and end lines (which are TColorLineTools)...

I probably made it sound too complicated. I see there are already some "global" variables that seem very similar: TeEngine.TeeAxisClickCap: Integer , for example. It " Determines the amount in pixels that is allowed when clicking near an Axis to trigger selection of the axis." I am now asking for so...

We can't consider this as a bug to be fixed. It's a new feature important enough to be enabled by default. Although I can understand, I'm still not happy the way it is now. I will have to write code which targets the exact release of 2014.12- For every existing project in the company. For every cha...

I also wondered the same. It's really taking a lot of time.
In case it has to be the main thread, is it possible to do it in advance? I'd like to do it when my application starts up. For now, it seems to be delayed until the chart becomes visible.

Careful, rant ahead. Steema, why do you always bind yourself to external services like Twitter, Google and whatever? There isn't even an official mail-powered newsletter. Instead, I will have to sign up to Twitter or Facebook to keep up to date (ok, in this case there's also an RSS feed). Now I wil...

I also wondered how to do that. I either did something terribly wrong, or adding the source folder isn't going to help you since the PAS files are not prefixed with stuff like "VCLTee" and the IDE isn't going to find them.