Show X axis in seconds or minutes or hours?

[Narcís]

Hi Dominik,

Yes, but we are pretty busy at the moment and we need some time to review it. We will post a reply ASAP.

Thanks for your patience.

[moelski]

Hi Narcis,

sounds fantastic !

I have to write some other stuff. So it is not so important for within the net days. It would be great if you have some info for me at the end of the next week.

[moelski]

Hi Narcis,

do you think that there will be a solution this week ?

[moelski]

Hi Narcis,

we actually implement TChart as our new charting engine. Do you have any idea when you will have the solution for this time axis problem?

[Pep]

Hi Dominik,

using the following code in your demo app. works fine here :

Code: Select all

procedure TForm1.Button1Click(Sender: TObject);
const second=1/(24*3600); //Fractional number representing one second in TDateTime
Var i: Integer;
begin
  Series1.XValues.DateTime          := True;

  With Chart1.BottomAxis do
  begin
    Increment:=DateTimeStep[dtOneSecond];
    DateTimeFormat := ComboBox1.Text;//'hh:mm:ss';
    RoundFirstLabel:=False;
  end;

  Chart1.Series[0].Clear;
  Chart1.Series[1].Clear;
  For i := 0 to 1336 do begin
    Chart1.Series[0].AddXY(Values[i, 1] * second, Values[i, 2]);
    Chart1.Series[1].AddXY(Values[i, 1] * second, Values[i, 3]);
  end;
end;

Does it works fine for you ?

[moelski]

Hi Pep !

Thx for the reply !

Well ... It works if you use hh:mm:ss. If you try mm:ss I see only 12:57 ...

But maybe there is another way ..

If I use hh:mm:ss I get the following x strings:
00:00:27, 00:00:57, 00:01:27, .....

Is it possible to kill all unimportant zeros? So the result should be something like this:
27, 57, 1:27, ....

And in addition ... If I kill the zeros, would it be also possible to write the strings like this:
27s, 57s, 1m27s, ....

And as the last question ...
How can I enhance the output to dd:hh:mm:ss ? It could be possible that customers produce very large logs.

[Pep]

Hi Dominik,

Well ... It works if you use hh:mm:ss. If you try mm:ss I see only 12:57 ...

So, if I understand is correct for you ?

Is it possible to kill all unimportant zeros? So the result should be something like this:
27, 57, 1:27, ....

Not with formatted datetime string, that I know. I think the smallest DateTimeFormat would be to use :
DateTimeFormat := 'hs';
This will remove the one character if it's not required for example 01:02:03 will change to 1:2:3.
One way to accomplish it would be to use the OnGetAxisLabel event and there customize the labels, removing the 0, etc..

And in addition ... If I kill the zeros, would it be also possible to write the strings like this:
27s, 57s, 1m27s, ....

The best way, as in the above question is to use the OnGetAxisLabel event to add extra chars.

And as the last question ...
How can I enhance the output to dd:hh:mm:ss ? It could be possible that customers produce very large logs.

I'm sorry, I'm not sure what you refer here, could you please be more specific ?

[moelski]

Hi Pep,

OnGetAxisLabel

That´s exactly what I need.
I will add code like this:

Code: Select all

procedure TForm1.Chart1GetAxisLabel(Sender: TChartAxis;
  Series: TChartSeries; ValueIndex: Integer; var LabelText: String);
begin
  If Sender = Chart1.BottomAxis Then
    if copy(LabelText, 1, 2) = '00' then
      LabelText := Copy(LabelText, 4, length(LabelText));
end;

I'm sorry, I'm not sure what you refer here, could you please be more specific ?

Of course

Actually I use this DateTimeFormat : hh:mm:ss
This means you have hours:minutes:Seconds

Is there a possibility to use the datetimeformat like this: dd:hh:mm:ss
Which means days:hours:minutes:seconds

Or a datetimeformat like this: hh:mm:ss:ms
Which means hours:minutes:seconds:milliseconds

[Pep]

Hi Dominik,

Is there a possibility to use the datetimeformat like this: dd:hh:mm:ss
Which means days:hours:minutes:seconds

Yes, setting :

DateTimeFormat := 'dd:hh:mm:ss';

This will display day:hour:mm:ss. Maybe you need num. of days ? In that case it should be added manually.

Or a datetimeformat like this: hh:mm:ss:ms
Which means hours:minutes:seconds:milliseconds

Yes, you can display milliseconds setting :

DateTimeFormat := 'hh:mm:ss:zzz';

[moelski]

Hi Pep,

Maybe you need num. of days ? In that case it should be added manually.

How can I add this manually? Do you have a small example?

[Pep]

Hi Dominik,

as other things you commented, by using the OnGetAxisLabel event.

[moelski]

Hi Pep,

Ok. Thx for your help !