TMS Chart Virtual mode

VCL TMS VCL Chart
3

Hi @Pieter, thanks for the code sample. Since I'm new to the VCL Chart library, and the documentation is poor, could you pls help me with some questions for the code?

  1. If I understood the concept we can`t specify the APoint.SingleXValue as a full DateTimeStamp and should use some kind of offset?
Range.StartDate := baseDateTime;
  1. What if my dates for points include milliseconds?
function ConvertDateTimeToX(Date: TDateTime): Double;
begin
  Result := SecondsBetween(Date, baseDateTime);
end;
  1. XYValuesOffset is undocumented, why do we use it?
  2. XYValues is undocumented, why do we use it?
  3. When AutoUnits is set true, the chart calculates the best possible value and position based on the minimum and the maximumvalue, Is this a bad practice to use such a nice feature?
  4. When two series have an Y-axis displayed on the same size of the chart, the spacing between the Y-axis itself and value is controlled by Serie.YAxis.MajorUnitSpacing := 30, why do we need this in terms for XAxis?
      XAxis.MajorUnitSpacing := 20;
      XAxis.XYValuesOffset := 100;
      XAxis.AutoUnits := false;
      XAxis.XYValues := False;
  1. For some reason I couldn`t integrate the sample into real project with 3 charts (
    Y0: arCommon
    Y1: arEnabled
    Y2: arCommon
    and all three should share same Xaxis (datetime)
    )
    Is there anything specific I'm missing?