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Bug 2082

Summary: Clicked function returns wrong when CalcVisiblePoints is set to false
Product: VCL TeeChart Reporter: yeray alonso <yeray>
Component: SeriesAssignee: Steema Issue Manager <issuemanager>
Status: RESOLVED FIXED    
Severity: normal    
Priority: ---    
Version: 24.180321   
Target Milestone: ---   
Hardware: PC   
OS: Windows   
URL: https://stackoverflow.com/questions/52105993/teechart-solving-calcclickedpart-bug-due-to-calcvisiblepoints-false
Chart Series: Line Delphi / C++ Builder RAD IDE Version:

Description yeray alonso 2018-09-04 05:07:49 EDT 
Having CalcVisiblePoints set to false, the Clicked function still returns point indexes when the mouse is over a point out of the ChartRect.

Both with the example from the customer and with the following examples, scroll the chart a bit and move the mouse over those points that have disappeared out of the ChartRect.

uses Series;

procedure TForm1.FormCreate(Sender: TObject);
var i: Integer;
begin
  Chart1.View3D:=False;
  Chart1.Legend.LegendStyle:=lsSeries;
  with Chart1.AddSeries(TLineSeries) do
  begin
    CalcVisiblePoints:=False;

    for i:=0 to 9 do
      Add(10);
  end;
end;
  

Also reproduced with the "Axis_OpaqueZones" example, adding this to the FormCreate:

  Chart1.Legend.Show;
  for i:=0 to Chart1.SeriesCount-1 do
    Chart1[i].CalcVisiblePoints:=false;