Agilent Technologies InfiniiVision 2000 X-Series, Руководство программиста, Страница: 868 / 930

868 Agilent InfiniiVision 2000 X-Series Oscilloscopes Programmer's Guide
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Programming Examples
Dim fXreference As Double = fResultsArray(6)
Console.WriteLine("Waveform X reference: {0:e}", fXreference)
Dim fYincrement As Double = fResultsArray(7)
Console.WriteLine("Waveform Y increment: {0:e}", fYincrement)
Dim fYorigin As Double = fResultsArray(8)
Console.WriteLine("Waveform Y origin: {0:e}", fYorigin)
Dim fYreference As Double = fResultsArray(9)
Console.WriteLine("Waveform Y reference: {0:e}", fYreference)
' Get the waveform data.
nLength = myScope.DoQueryIEEEBlock(":WAVeform:DATA?", _
ResultsArray)
Console.WriteLine("Number of data values: {0}", nLength)
' Set up output file:
strPath = "c:\scope\data\waveform_data.csv"
If File.Exists(strPath) Then
File.Delete(strPath)
End If
' Open file for output.
Dim writer As StreamWriter = File.CreateText(strPath)
' Output waveform data in CSV format.
For index As Integer = 0 To nLength - 1
' Write time value, voltage value.
writer.WriteLine("{0:f9}, {1:f6}", _
fX (CSng(index) * fXincrement), _
((CSng(ResultsArray(index)) - fYreference) _
* fYincrement) + fYorigin)
Next
' Close output file.
writer.Close()
Console.WriteLine("Waveform format BYTE data written to {0}", _
strPath)
End Sub
End Class
Class VisaInstrument
Private m_nResourceManager As Integer
Private m_nSession As Integer
Private m_strVisaAddress As String
' Constructor.
Public Sub New(ByVal strVisaAddress As String)
' Save VISA addres in member variable.
m_strVisaAddress = strVisaAddress
' Open the default VISA resource manager.
OpenResourceManager()