Simple steps to create Delphi chart

Simple steps to create Delphi chart

Use following simple steps to start your first chart using Delphi TChart component:

• Put chart component on the form
• Double click on chart, then you will see chart editing dialog box.
• Click add button in series tab sheet.
• Select the chart style from the list (Line, Bar, Pie ..)

Put following code to add data into the chart

procedure TForm1.Button1Click(Sender: TObject);
begin
    { function AddXY(Const AXValue, AYValue: Double;
    Const AXLabel: String; AColor: TColor) : Longint;
    
    This function inserts a new point in the Series.
    The new point has X and Y values. The AXLabel
    parameter is optional (can be empty ''). The AColor
    parameter is optional (can be clTeeColor).
    The function returns the new point position in the
    Values list. }
    Chart1.Series[0].AddXY(10, 20, '', clTeeColor);
    Chart1.Series[0].AddXY(15, 50, '', clTeeColor);
    Chart1.Series[0].AddXY(20, 30, '', clTeeColor);
    Chart1.Series[0].AddXY(25, 70, '', clTeeColor);
    Chart1.Series[0].AddXY(30, 10, '', clTeeColor);
    Chart1.Series[0].AddXY(35, 50, '', clTeeColor);
    Chart1.Series[0].AddXY(40, 45, '', clTeeColor);
    Chart1.Series[0].AddXY(45, 10, '', clTeeColor);
    
    { Or you can write following code using "With" statement.
    Its much easier than repeating everything again and again.
    
        With Chart1.Series[0] Do
        Begin
            AddXY(10, 20, '', clTeeColor);
            AddXY(15, 50, '', clTeeColor);
            AddXY(20, 30, '', clTeeColor);
            AddXY(25, 70, '', clTeeColor);
            AddXY(30, 10, '', clTeeColor);
            AddXY(35, 50, '', clTeeColor);
            AddXY(40, 45, '', clTeeColor);
            AddXY(45, 10, '', clTeeColor);
        End;
    }
end;

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Luis :: February 20-2009 :: 01:31 AM

Hello, Would you please give me some hints on how to allow a user to choose a chart style, I mean I need a code for example i can select combobox and type 3 options to plot a chart.

Thanks

Sibusiso :: March 10-2009 :: 01:34 PM

How to make the chart to be visible in intraweb

Widakdov :: November 09-2009 :: 08:49 AM

Dear digital coding ,

How to create a simulated chart using delphi

meng :: April 12-2010 :: 04:29 AM

very good very good very good very good!!!

Narcís Calvet :: April 12-2010 :: 03:06 PM

This code can be simpler:

carol paola galvis :: April 26-2010 :: 03:33 PM

si gracias por el tutorial

Piet :: December 02-2010 :: 10:59 PM

Is it also possible to create a chart, adding a label as a marker to specific data points but not showing the label on the horizontal axes?

For instance:
X: 0 to 100
Y: random
Show X-values on BottomAxis, Y-Values on VertAxis and three labels (markers) on X=23, X=57, X=71

stephen :: January 08-2011 :: 11:51 PM

Hi,

I have a problem where AddXY doesn't plot the points during an iteration but as soon the iterations arte finished it blurts out everything. Stepping into the program all the recording of the data at each iteration is fine i.e. X and Y.

so it seems like a refresh.,. repaint, update issue?  i've tried using for loops to slow things down and use the chart1.refresh etc commands but no joy. I need real time monitering of X and Y. Have you any ideas how i could do this?

it would be appreciated,

Thanks

c.g :: February 18-2011 :: 09:30 PM

I am using delphi 3 and cannot get your code to work at all, any suggestions. Thanks

Okan :: May 18-2011 :: 11:16 PM

Thank You!

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