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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/

817 questions
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What can cause a pie chart to come out "squished"?

I have a pie chart, created with TeeChart, that looks just fine on the system I develop on, but when I run it on a different machine, the "pie" comes out all squished into an oval shape instead of being circular. I've ensured that the Circled…
Mason Wheeler
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"Detected problems with API-compatibility"

I am using the current Delphi 10.3 release along with the current TeeChart FMX 2018.26 release. The Android device is a onePlus 6T with Android 9. Unfortunately, a "detected problems with API-compatibility" is currently being shown. I have used a…
Jens Werschmoeller
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how to do a stacked barchart from a dataset using teechart in delphi

I can create a stacked barchart in Delphi using TeeChart. This is using values and series added in a loop. I would prefer to create this chart by just using a query as the datasource and not have to add each bar as a separate series inside a loop.…
user2455609
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Draw on TeeChart directly with GDI+

How to rotate and draw a transperent PNG image using GDI+ directly on TChart? Currently I load PNG image to a bitmap and use two bitmaps for GDI+ rotation (it works very fast) and then make the target bitmap transparent and draw it on TChart's…
Paul
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Plotting a TChart with time as the X-axis

I have a series of 3,600 values, one every second for an hour. I want to chart them as a single series, using TChart in Delphi 7. The values should be plotted on the Y-axis. What should I pass to AddXY() as the X-axis value? The count of points? I…
Mawg says reinstate Monica
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How to fix TChart Axis Margin Delphi

I was a dynamic data, and I want to show it on the same TChart. How can I fix the axis margin with different data? For Example: First Data Have a 'thousand' value Second Data Have a 'hundred' value I want my TChart have same margin for any value.…
Tommy Sayugo
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Teechart HTML5, line color and thickness

How do you change the line color and thickness of a series in Teechart HTML5. I have been looking through the examples, but i can't find anything describing that.
NikolajSvendsen
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Error when TChart is docked

I get an AV when I dock a Form, wich contains a TChart, into another Form. The error does not occure when the AutoPaint property of the TChart is set to True. I have tested this with C++Builder XE6, XE7 and Delphi Builder XE6 with the standard…
Kerem
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minor ticks TeeChart delphi logarithmic scale

I have a very specific request regarding minor ticks. My client want a graph with a different number of minor ticks according to different decades. For example, if the decade is less than 1 he wants 10 labels(1, 2, 3, 4, 5, 6, 7, 8, 9, 10) and the…
Derek Seymour
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TeeChart fast draw in TFastLineSeries

I am using evaluation version of TeeChart VCL v2012 in Embarcadero C++Builder XE. In my program I get about one thousand of points every second and put them into FastLineSeries. To put points into seraies I use AddXY method. When I run my…
Vasyl Hordynskyy
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Creating area chart coloring the part of overflowed values with other color

Can you help me creating the area chart, where the part (top) of chart has other color? I would like to indicate that the values over any number value are critical. This is a screenshot: I've created two area charts but as you can see, each chart…
user1332578
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How to Install a COM using ClickOnce

I have installed my windows application that uses TeeChart ActiveX (a COM Component for charting) using ClickOnce. If I register manually TeeChart using regsvr32 teechart8.ocx, my application works fine. But I want and I need to install the…
Jonas
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Delphi 7: How to print a TChart?

How do I print a TChart? I displayed a TChart, and there is a TButton in the screen. When the TButton clicked, Windows Printer Dialog will be shown and the TChart will be printed to the selected printer. How can I do that using Delphi 7? Thanks.
Kawaii-Hachii
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Dashed series in TChart

Are true dashed series possible in TeeChart? I am trying to represent several data channels on TChart to show data outages. According to the plan each series should contain multiple ranges. Each range represents one dash on the chart and is built…
Paul
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Synchronized zooming of two TChart components

I'm using two TChart components and would like to do synchronized zooming for them. I found that TChart has ZoomRect procedure for zooming into a desired rectangle on the chart but I haven't found any way to read the coordinates of this zoom…
Ville Salonen
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