Special double values in chart.Data

[bounce]

I apologize if any of my questions are answered in the documentation, but I couldn't find it anywhere. What is the behaviour supposed to be for the following C# code:

ChartFX.WinForms.Chart graph = new ChartFX.WinForms.Chart();

for(int lcv = 0; lcv < 9; lcv++)

{

graph.Data.Y[0, lcv] = lcv;

graph.Data.Y[1, lcv] = lcv;

graph.Data.Y[2, lcv] = lcv;

}

graph.Data.Y[0, 4] = double.NaN;

graph.Data.Y[1, 4] = double.PositiveInfinity;

graph.Data.Y[2, 4] = double.NegativeInfinity;

Should it act as if they were set to ChartFX.WinForms.DataValues.Hidden instead of the special double values?

Speaking of which, I also have a few questions on ChartFX.WinForms.DataValues.Hidden:

1) Why define it as 1e108 instead of, say, NaN?

2) What is DataValues.InterpolateHidden initialized as?

3) If I'm setting both the X and Y value for a point, do I have to set both, either one, or a specific one to Hidden so that it won't be shown? Is there an advantage to doing it one way over the other?

 

Thank you,

Jerry

[Frank]

double.NaN. double.PositiveInfinity,double.NegativeInfinity can NOT be passed as values.

 > 1) Why define it as 1e108 instead of, say, NaN?

Performance reasons

 > 2) What is DataValues.InterpolateHidden initialized as?

false

> 3) If I'm setting both the X and Y value for a point, do I have to set both, either one

You should set them both hidden. However, if only the Y-Value is hidden the point will not show.