Custom axis labels

[franckgar]

Hi,
I have a question concerning axis labels : is it possible to keep default axis labels when adding a custom one with the routine

Code: Select all

NewAxisItem := Chart.DepthAxis.Items.Add(0.0)

thanks
Franck

[Yeray]

Hi Franck,

I've tried it and forcing a chart draw before adding the new axis labels, the default labels list isn't overwritten:

Code: Select all

procedure TForm1.FormCreate(Sender: TObject);
begin
  Chart1.AddSeries(TSurfaceSeries.Create(self));
  Chart1[0].FillSampleValues(10);

  Chart1.Chart3DPercent := 100;
  Chart1.Axes.Depth.Visible := true;

  Chart1.Draw;

  Chart1.Axes.Depth.Items.Add(5.5);
end;

[franckgar]

In my case, default axis labels are hidden as soon as I had a custom one.

You could reproduce it with the example Axes->Labels->CustomLabels in Tee7New.exe

Franck

NB: I'm working with TeeChart v7.07 (source v7.12)

[Yeray]

Hi Franck,

Here is the code of the Custom Labels demo with two little changes that makes the default labels also visible:
- Chart1.Draw to force the default labels to be drawn before adding the custom ones.
- Commented the line Chart1.Axes.Left.Items.Clear in AddCustomLabels method for not to clean the labels.

Code: Select all

procedure TForm1.FormCreate(Sender: TObject);
var i: Integer;
begin
  Chart1.AddSeries(TLineSeries.Create(self));
  Chart1[0].AddArray([200,0,123,300,260,-100,650,400]);

  Chart1.Draw;

  AddCustomLabels;
end;

Procedure TForm1.AddCustomLabels;
begin
  with Chart1.Axes.Left do
  begin
//    Items.Clear;  // remove all custom labels

    // add custom labels

    Items.Add(123,'Hello').Font.Size:=16;

    Items.Add(466,'Good'#13'Bye').Transparent:=False;

    Items.Add(300);

    with Items.Add(-100) do
    begin
      Transparent:=False;
      Transparency:=50;
      Color:=clBlue;
    end;
  end;
end;

Another possibility could be drawing the default labels, save them in an array at OnGetAxisLabels event, and then clean all the labels and add the desired ones as custom labels.

[franckgar]

Your first possibility does not work on my side
You are working with TeeChart v8.xx ?

The second works ... but it is not very practical

Franck

[Yeray]

Hi Franck,

Yes, excuse me. I was making tests with TeeChart 8.04 and I've just seen that with v7 the easiest solutions doesn't work. So with v7 I can only think in the saving to table solution.

If you find problems implementing it, please don't hesitate to let us know.

[franckgar]

thanks for your help
Franck