AddXY Troubles

[tbonejo]

Hi,

I am using the AddXY method to load series dynamically with data from TMS AdvStringGrid. It loads the data ok, but the values at the beginning of the plot are not correct. I tried doing arrays but because my charts and series are unknown at design time, I cant really seem to load the data the same as using the AddXY method.

Has anyone else experienced strange data plots using AddXY?


Heres an idea of what my code looks like:

Code: Select all

Procedure getChartdata(grid: TAdvColumnGrid; ChartPanel: TTeePreviewPanel; mychart: Array of TChart; check: TOfficeHintCheckBoxXP);
Var
mycol,myrow: Integer;
idx,i : integer;


begin

for idx := 0 to Charts-1 do
 begin
   for mycol := 0 to grid.TotalColCount-1 do
    begin
    s := grid.Cells[mycol,startrow-1];
      for myrow := startrow to endrow do
      begin
        xser := grid.Floats[0,myrow];
        yser := grid.Floats[mycol,myrow];
        mychart[idx].Series[mycol].AddXY(xser,yser,s);
      end;
     
    end;

     if check.Checked = True then
     begin
     mychart[idx].Title.Caption := run + ' ' + filename + ' ' + grid.Cells[0,2] + grid.cells[1,2];
     end
     else
     mychart[idx].Title.Caption := run + ' ' + filename;

     mychart[idx].Axes.Bottom.LabelStyle:=talValue;
   end;



end;

thanks,

Tom

[tbonejo]

I also noticed if I use arrays and do the with stuff for setting the values and all, that works fine but the only plot I see is the last one done?

Code: Select all

With mychart[idx].Series[mycol].XValues do
       begin
       Value:=TChartValues(mytime);  { <-- the array }
       Count:=myrow;               { <-- number of points }
       Modified:=true;
       end;

      With mychart[idx].Series[mycol].YValues do
       begin
       Value:=TChartValues(myseries);
       Count:=myrow;
       Modified:=true;
       end;

[tbonejo]

Seems strange but if I create the series first and then do the addxy it works fine. However if I already created the series elsewhere and THEN do the addxy it shows incorrect data.


Any ideas?


Thanks,

Tom

[tbonejo]

Can someone give me a hand with this?

Its getting awful frustrating wasting hours trying to get this resolved.

How hard can it be?

[tbonejo]

Doesnt anyone have a clue here?

Ive rewritten code 30 times over trying to get this corrected.

Sorry if Im losing my patience but this is driving me nuts trying to get it working the way one would expect it to.

Thanks,

Tom

[tbonejo]

For those watching I resolved this issue.

Remember when you create series at runtime, dont forget to clear the data BEFORE doing the ADdXY, especially if for looks you use the fillsamples function!

That was the unexplained numbers all along.

Tom