Derived YAxis for 360 angles

[cdouillet]

Hi to all,

Has anyone implemented an object derived from NationalInstruments.UI.YAxis in order to display the MajorDivision and MinorDivisions as 360 angles?

That way, instead of displaying

3

2

1

0

-1

-2

-3

The tick labels would display

3

2

1

0

359

358

357

I guess it would be like adding a new type of String Formatting which would be 'modulo 360'.

If anyone has an idea I would much appreciate any info!

Cheers,

CD

[cdouillet · Accepted solution]

I found then answer myself!

I created this class:

Class clNI_CustomFormatString360
  Inherits FormatString
  Private decimals_ As Integer = 0
  Public Sub New(ByVal decimals As Integer)
    MyBase.New(FormatStringMode.Numeric, "G5")
    decimals_ = decimals
  End Sub

  Public Overrides Function FormatDouble(ByVal value As Double) As String
    While value < 0
      value += 360
    End While
    While value >= 360
      value -= 360
    End While
    Return MyBase.FormatDouble(Math.Round(value, decimals_))
  End Function
End Class

And then in my code I assign:

  myScatterGraph.YAxes(0).MajorDivisions.LabelFormat = New clNI_CustomFormatString360(1)
  

 That did the trick!