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Questions tagged [teechart]

TeeChart is a commercial set of powerful charting components originally written for Delphi. A basic component called TChart is included in every Delphi IDE supporting VCL and FireMonkey frameworks. TeeChart is also available for major languages: .NET Framework, Xamarin (including Android, iOS and Forms) Java (including Swing, SWT and Android), ActiveX, Javascript/HTML5 and PHP.

With TeeChart it is possible to draw, manipulate, print and export various kinds of charts. This includes Bar, Line, Pie, financial charts of different kinds and a lot of more sophisticated graphs in 2D and 3D. Rendering is possible on a Canvas and also with OpenGL.

TeeChart is developed by Steema Software: http://www.steema.com/

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Draw a marker on each new point on teechart

I am developing an application on Embarcadero XE where i receive real time data from the ethernet port and display on a teechart chart on the screen. The application works like an osciloscope, that is, there is a time window (10 seconds for example)…
Gabriel Attuati
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when use teetree(TeeChart's one Component) build a imageshape,it's display with error

when add a lot of picture node to the teetree control,and set text offset to 30,then scroll to the end,the last line display picture only. how should i do? this is the result of the error: procedure TForm1.FormCreate(Sender: TObject); var…
Leo Chu
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Storing reference to object in TeeChart

I'm using TeeChart with Delphi XE5 and utilizing the BubbleSeries component to show X/Y/Radius bubbles in a chart. I'm building the chart using an list of objects that I have, calculating X/Y/Radius values for these objects on the fly and inserting…
monoceres
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For Tchart in C#, how to make markstip show out both series name and label value when mouse over

I have a teechart which has multiple series and I want use the markstip to show out both label value and the series name when mouse over. How could I do that? Chart.Tooltip1 = new Steema.TeeChart.Tools.MarksTip(Chart); Chart.Tooltip1.Style =…
user3430882
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Horizontal distance between points drawn

I try to draw a normal XY plot using a TChart (TeeChart) component in Embarcadero RAD Studio. When I add new points that have evenly spaced x values, e. g. x: 1 2 3 4 5 y: 10 20 5 8 100 everything is drawn OK. But when I add points that are…
lvds
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Labels ValueFormat is ignored

How can I change the decimal separator for a Steema TeeChart Axis Label to be . instead of a ,? I checked the tutorial which stated that: Label formats You may apply all standard number and date formats to Axis labels. The Axis page, Labels…
default
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C++ Builder XE7: Using TChart in packages

I am confronted with a weird situation and I couldn't find any informations about this yet. I have postet this issue allready on the new Embarcadero community forum but I'm not very hopeful that I will get an answer there... So I decided to create a…
Kerem
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Zoom in/out chart using downsampling function

I use a .NET Winform version teechart 4.1.2014.8126 evalution version. When I zoom in / out chart using downsampling function, Something is wrong. Look at the below picture. This is a chart using downsampling function. We can see about 50 ~60…
DugSung Kim
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Decimals with no value defined don`t get the zeros

I have a pie graphic and the teechart don`t put the decimals when an integer is put. Example: If one piece of the pie has the value "2", the legend shows "2" instead "2,00" since the grafic has another pieces with decimals (eg: 3,55). And other…
Saeger
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Zoom in downsampling chart

I use a .NET Winform version teechart 4.1.2012.1032. I modified the sample that you supplied. "Extended\Reducing number of points\DownSampling Additions" But When I zoom in chart, fastline's marks count is not 100 ,…
DugSung Kim
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Teechart slow after updating to delphi XE6

I have recently updated my delphi from XE4 to XE6, but it is extremely slow to plot points using the TPointSeries series. I noticed the points to be anti-aliased, so I disabled that using chart_radar.Canvas := TTeeCanvas3D.Create. The anti-aliasing…
Spifff
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TChart quality issue

We were using Delphi 2010 with the full VCL edition of TeeChart this worked fine We have now updated to Delphi XE 5 with the latest version of TeeChart and the quality of the charts is now worse Please see the image here 2 bars which were seperate…
Paul
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TeeChart CircularGauge Axis custom axis labels format problems

I use TeeChart for Xamarin.iOS. I have CircularGauge, which must display large numbers (e+200). Axis labels with long text (large numbers) are located in strange manner on the centre of chart. ValueFormat property isn't working for…
Louis
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TeeChart VCL vs .NET

Is TeeChart .NET built from the same source as TeeChart VCL? I'm just wandering as we have a VCL application heavily dependent on TeeChart and I would like to redevelop the GUI component in .NET so I can switch from the Codegear IDE to Visual…
Seth
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How to create multiline legend in teechart?

Does anybody know if there a way to write multiline legend of a chart? I've tried to add TeeLineSeparator or #13, and it doesn't work? Thanks very much
user1706006
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