Hello Jan, I'm not sure how are you exactly drawing your TPoint3DSeries but here it is an example showing a simple one with all the points with the same XValue . Here what I'm getting: VerticalPoint3D_Marks.png uses TeEngine, Chart, TeePoin3; var Chart1: TChart; procedure TForm1.FormCreate(Sender: T...

I see removing the Showing condition at TCustomTeePanel.ChangeScale at {VCLTee.}TeeProcs.pas unit fixes it, but I have to check for any collateral damages: procedure TCustomTeePanel.ChangeScale(M, D: Integer{$IFDEF D24}; isDpiChange: Boolean{$ENDIF}); //... if not (csLoading in ComponentState) and ...

Hello, I've tried with a custom cubic spline, but it doesn't give the result I'd expect: Project3_2023-09-12_12-21-08.png uses Chart, Series; var Chart1: TChart; type TCoeficient = record X, Y, b, c, d: Double; end; type TCoeficients = array of TCoeficient; type TPoints = array of TPointFloat; proce...

Hello, In that case you should do something like this in your event listener: const body = document.body; body.addEventListener('click', function(evt) { for (let i = 0; i < this.data.length-1; i++) { const x1 = this.axes.bottom.calc(this.data[i]); const x2 = this.axes.bottom.calc(this.data[i+1]); co...

Hello,

I'm not sure how are you exactly drawing those rectangles, but here's an example of detecting a mouse click on a drawn ellipse.

Hello, I'd say this is something to expect if you want the curve to pass through the points. If you don't need the curve to pass though the points, you can use a TSmoothingFunction with Interpolate:=false as follows: uses Chart, Series, TeeSpline; var Chart1: TChart; procedure TForm1.FormCreate(Send...

Hello, That's an interesting design decision for your application that can be considered for any component, not just specifically for TeeChart. I'd say it's more elegant and consistent (and less error prone) to reuse a classes/components, but you will probably want to also consider the cost (time in...

Hello Tor, The line series is drawn as a line in the legend. This is the expected behaviour. You can fully customize the legend symbols as shown in the example here . Or, if you just want to show a square for a line series, you can "hack" it: just add an dummy bar series with no data; set its title ...

Hello, Sorry for the delayed reply here. Problem #1: Fonts are the wrong size: 1) Start the app on a monitor with normal DPI. The "Chart #1" tab page should be showing. 2) Without changing pages, drag the application to a monitor with 200% DPI. 3) Switch to the "Chart #2" tab page. You should see th...

Hello Marcel,

This is just to let you know I've just fixed the #2627.
So the next maintenance release will include it.

Hello Ed,

Can you please arrange a simple example project we can run as-is to reproduce the problem here?
Thanks in advance.

Ed Dressel wrote: ↑

Thu Aug 24, 2023 10:17 pm

(And I accidently spelt my last name incorrectly when I logged in and it won't let me fix it).

I've edited it, but you should be able to modify it here.

Hello Tammy, I previously was using the TeeChart that came with Rad11.3 Delphi, but couldn't access tech support or the forum unless I bought it directly from Steema. So I bought it, and downloaded the latest and now I just need to get some help on this (guidance or bug fix). We also give support th...

Hello Gabriel,

Sorry for the delayed reply here.

This is just to confirm only these environments use the GPU:
- VCL + OpenGL
- FMX + TChart3D

We are still experimenting with Skia canvas.

Gabriel, A. TAOUSSI wrote: ↑

Mon Aug 07, 2023 8:06 am

Unfortunately, within a Chart3D, trisurfaces don't render at all on my machine.

We'll take a look at that.

Hello, As an alternative to that workaround, forcing the charts to be drawn works fine for me: procedure TForm1.BPrintPreviewClick(Sender: TObject); var preview: TChartPreview; i: Integer; begin Charts[0].PrintMargins:=Rect(2,2,2,76); Charts[1].PrintMargins:=Rect(2,25,2,51); Charts[2].PrintMargins:=...

wrote: ↑

Tue Aug 08, 2023 1:22 am

How to prevent the legend from being dragged during the chartmousemove event, as shown in the following example？？？

Sorry, in what example?