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How to avoid overlapping when checking Series-Point-Visible
Posted: Fri Mar 12, 2010 4:52 am
by 8574101
How to avoid overlapping when checking "Series-Point-Visible"?
"Marks" can be drawed every several points by setting the "Series--Marks--Draw every:".
Does "Point" have the any similar setting?
Thanks.
Re: How to avoid overlapping when checking Series-Point-Visible
Posted: Fri Mar 12, 2010 4:57 am
by 8574101
For Example:
1.I add 300 points to Series1.
2.Then I Check the "Series--Point---Visible".
There are so many points that points overlap each other.
So I want to show "Point" every several points to avoid overlapping.
Thanks.
Re: How to avoid overlapping when checking Series-Point-Visible
Posted: Fri Mar 12, 2010 5:05 pm
by yeray
Hi wwp3321,
If I understand well, you have a TLineSeries with pointer visible but too much values to show all that pointers so you would like to hide some of them. Here is how you could do it:
Code: Select all
//...
private
{ Private declarations }
function Series1GetPointerStyle(Sender: TChartSeries; ValueIndex: Integer): TSeriesPointerStyle;
//...
uses series;
procedure TForm1.FormCreate(Sender: TObject);
begin
Chart1.View3D:=false;
Chart1.Legend.Visible:=false;
with Chart1.AddSeries(TLineSeries.Create(self)) as TLineSeries do
begin
FillSampleValues(300);
Pointer.Visible:=true;
OnGetPointerStyle:=Series1GetPointerStyle;
end;
end;
function TForm1.Series1GetPointerStyle(Sender: TChartSeries; ValueIndex: Integer): TSeriesPointerStyle;
begin
if (ValueIndex mod 5 = 0) then Result:=psRectangle
else Result:=psNothing;
end;
Re: How to avoid overlapping when checking Series-Point-Visible
Posted: Mon Mar 15, 2010 8:20 am
by 8574101
Thank you very much!