Search found 1001 matches

by Marc
Tue Feb 18, 2020 10:02 am
Forum: VCL / FMX
Topic: TeeGrid with TComboBox Column and LiveBindings
Replies: 3
Views: 6306

Re: TeeGrid with TComboBox Column and LiveBindings

Hello Willi, I've run a test to check it. Similar to the project linked here: https://github.com/Steema/TeeGrid/tree/master/demos/FireMonkey/Cell%20Editors Assigning the data to a ClientDataset, the combo to possible field values and another component on the form with LiveBindings, linked to that sa...
by Marc
Mon Feb 17, 2020 4:51 pm
Forum: VCL
Topic: Fixed x to y ratio
Replies: 8
Views: 8537

Re: Fixed x to y ratio

Hello Errol, The demo source may have been installed to your TeeChart installation folder if you selected 'yes' to examples. But otherwise you can find the source to that demo here: https://github.com/Steema/TeeChart-VCL-samples/tree/master/TeeNew (specifically https://github.com/Steema/TeeChart-VCL...
by Marc
Mon Feb 17, 2020 4:42 pm
Forum: VCL
Topic: Using DBChart with text data
Replies: 4
Views: 5990

Re: Using DBChart with text data

Hello Errol,

It sounds like the ValueList Order may be what you need here.

Before you add the data, set:

Code: Select all

Series1.XValues.Order := loNone;
Series1.YValues.Order := loNone;
Regards,
Marc
by Marc
Mon Feb 17, 2020 4:22 pm
Forum: FMX
Topic: z axis on gantt series
Replies: 12
Views: 13142

Re: z axis on gantt series

Hello,

An extra note on this. If you enable the DepthAxis it may help to distinguish between the different Series.

eg.

Code: Select all

chart1.DepthAxis.Visible := True;
Regards,
Marc Meumann
by Marc
Mon Feb 17, 2020 3:52 pm
Forum: VCL
Topic: TContourSeries: slowing down problem
Replies: 5
Views: 6738

Re: TContourSeries: slowing down problem

Hello, Thanks for the feedback, that's useful to know. There are no specific properties that can be used to speed up ContourSeries, There are a few generic steps/suggestions that can help according to certain circumstance. - Chart AutoRepaint property. If false the chart will only repaint when you d...
by Marc
Fri Feb 14, 2020 10:32 am
Forum: VCL
Topic: Using DBChart with text data
Replies: 4
Views: 5990

Re: Using DBChart with text data

Hello Errol, Yes, you could use code similar to this: var vals : array of double; i : Integer; begin SetLength(vals, 8); for i := 0 to 7 do vals[i] := Random(10); Series1.AddArray(vals); end; You could send x and y arrays to the method: ie. Series1.AddArray(xVals,yVals); Regards, Marc
by Marc
Fri Feb 14, 2020 10:23 am
Forum: VCL
Topic: TContourSeries: slowing down problem
Replies: 5
Views: 6738

Re: TContourSeries: slowing down problem

Hello,

You can set:

Code: Select all

Chart1.Hover.Visible := False;
Regards,
Marc Meumann
by Marc
Wed Feb 12, 2020 1:00 pm
Forum: Javascript / HTML5
Topic: Faster Zoom
Replies: 1
Views: 6096

Re: Faster Zoom

Hello,

There is no single property that will speed that up. It may be worth paying attention to factors of the Chart setup, ie. if any part of the chart has extra processing code on repaint that might be slowing down the paint cycle.

Regards,
Marc Meumann
by Marc
Thu Feb 06, 2020 9:09 am
Forum: VCL
Topic: OutOfMemory exception with nearly identical Y values (could be related to Bug 2267)
Replies: 3
Views: 5156

Re: OutOfMemory exception with nearly identical Y values (could be related to Bug 2267)

There is an interesting solution to the limitation, offered by Yeray for the ActiveX version of TeeChart:

viewtopic.php?f=1&t=17056&p=75804&hilit ... ion#p75804
by Marc
Thu Feb 06, 2020 9:03 am
Forum: VCL
Topic: OutOfMemory exception with nearly identical Y values (could be related to Bug 2267)
Replies: 3
Views: 5156

Re: OutOfMemory exception with nearly identical Y values (could be related to Bug 2267)

Hello, Yes, this is, I think, related to precision of the double type itself. The problem of a large number with a small fraction. For example this fails to find a correct Axis increment: Series1.AddXY(7219300,282842.700000000032); Series1.AddXY(7219500,282842.700000000064); But this is ok (with the...
by Marc
Thu Feb 06, 2020 8:43 am
Forum: VCL
Topic: Error Adding TeeChart 2020 VCL Components to Embarcadero 10.2
Replies: 2
Views: 4428

Re: Error Adding TeeChart 2020 VCL Components to Embarcadero 10.2

thanks for the feedback.

Regards,
Marc
by Marc
Thu Feb 06, 2020 8:34 am
Forum: VCL
Topic: Horz labels dropping
Replies: 1
Views: 3841

Re: Horz labels dropping

Hello Ed, Re.1. You can manually override the auto-separation with the increment property. eg. (you'll notice the effect of this test more on a horizontal axis but the result is the same on a vertical axis where you have multiline labels): Series1.Add(4,'first long long label'); Series1.Add(5,'secon...
by Marc
Fri Jan 31, 2020 4:39 pm
Forum: VCL
Topic: HighLowSeries brushes
Replies: 2
Views: 5363

Re: HighLowSeries brushes

Hello,

Two bugfixes completed in reponse to the bug report:

http://bugs.teechart.net/show_bug.cgi?id=2284 (inverted axis brush issue)
http://bugs.teechart.net/show_bug.cgi?id=2285 (brush transparency)

Regards,
Marc
by Marc
Thu Jan 30, 2020 3:36 pm
Forum: VCL
Topic: HighLowSeries brushes
Replies: 2
Views: 5363

Re: HighLowSeries brushes

Hello,

Thanks you for the bug report. There are some issues here. We'll look into them.

We'll move this thread over to the TeeChart group shortly, as it's misplaced here.

Regards,
Marc Meumann
by Marc
Thu Jan 30, 2020 3:08 pm
Forum: VCL
Topic: Export Chart to PDF
Replies: 4
Views: 8643

Re: Export Chart to PDF

Hello Flair58,

We have looked at several options and alternatives but haven't yet found the solution.

Regards,
Marc