Steema Central

Posted: **Sat Nov 25, 2017 12:41 am**

TeeChartPro v2017.22.170619 32Bit FMX
I have a requirement for multiple left axis with associated series with the user able to select which Axis and Series are to be shown.
To do this I implemented multiple Custom Axis with their associated series.
The problem is that if only custom axes are being displayed then I am unable to adjust or even under default conditions (LabelSize and TitleSize set to 0) get all the left axis labels and titles to show.
I have reduced this issue to
1. Create new project
2. Add TChart
3. Add the following code to be called from the forms constructor.

Code: Select all

procedure TfrmPondLevelTest.SetupChart;
var
  newSeries: TLineSeries;
  customAxis: TChartAxis;
begin
  Chart.ClearChart;
  Chart.View3D         := False;
  Chart.Legend.Visible := False;

  // Create new series
  newSeries := TLineSeries.Create(Chart);
  Chart.AddSeries(newSeries);
  newSeries.Title            := 'SERIES TITLE';

  if False then
  begin
    // Series uses left axis
    Chart.LeftAxis.Title.Caption := 'LEFT AXIS';
    Chart.LeftAxis.LabelsSize    := 25;
    Chart.LeftAxis.TitleSize     := 25;
  end;

  if True then
  begin
    // Series uses Custom Axis
    customAxis               := TChartAxis.Create(Chart.CustomAxes);
    customAxis.Title.Caption := 'CUSTOM AXIS';
    newSeries.CustomVertAxis := customAxis;
    customAxis.LabelsSize    := 25;
    customAxis.TitleSize     := 25;
  end;

  newSeries.FillSampleValues(20);
end;

If I use the LeftAxis if then code then I get the following

: LeftAxis.png (14.03 KiB) Viewed 14250 times

If I use the CustomAxis if then code then I get the following

: CustomAxis.png (11.07 KiB) Viewed 14249 times

The only difference in the above is which axes is being used, Left or Custom.
I would expect to get the same result in both cases but I am not and I cannot figure out how to get the custom axis to behave the same as the Left Axis.
Any help would be appreciated.

Posted: **Mon Nov 27, 2017 9:05 am**

Hello,

Try adding some margins:

Code: Select all

  Chart1.MarginLeft:=60;
  Chart1.MarginRight:=20;
  Chart1.MarginBottom:=10;
  Chart1.MarginTop:=10;
  Chart1.MarginUnits:=muPixels;

Posted: **Tue Nov 28, 2017 5:48 pm**

Thought I had tried the margins. That does solve the problem for the Custom Axes and will work for my case.
However If I use the same code with the Left axis I get the Chart moved over by the margin entered as Expected of a margin.
Therefore if I happen to be mixing axes (Left and Custom) I would need to be aware of this and decide whether or not to add the margin.
I would expect both Custom and Left to work the same.

Posted: **Wed Nov 29, 2017 1:02 pm**

Hello,

Your request sounds similar to #126.
Feel free to add your mail to the CC list to be notified when an update arrives.

Steema Central

Single Custom Left Axes Does not behave the same as LeftAxis

Single Custom Left Axes Does not behave the same as LeftAxis

Re: Single Custom Left Axes Does not behave the same as LeftAxis

Re: Single Custom Left Axes Does not behave the same as LeftAxis

Re: Single Custom Left Axes Does not behave the same as LeftAxis