[RESOLVED] Converting voltage level into graphical display

[catherine0136]

Thanks for helping ! =)

Am i right to place the VoltsQ.Count>2 as follows, please correct me if i'm wrong.

If VoltsQ.Count > 2

 'Put your code for drawing the axes etc. here.


            'Details of the graph layout -- fill in your own values here!
            Dim Origin As New Point(50, 119)
            Dim xAxisLength As Integer = 210
            Dim yAxisLength As Integer = -120

            'Turn the queue into an array:
            Dim voltsQarray As Single() = voltsQ.ToArray

            'Define an array of data points:
            Dim DataPoints(voltsQ.Count - 1) As Point
            Dim x, y As Integer

            'Fill in the array using the voltage readings:
            For i As Integer = 0 To voltsQ.Count - 1
                'Get the volts value from the queue:
                Dim v As Single = voltsQarray(i)
                'Find the distance along the x axis:
                x = Origin.X + CInt(i * xAxisLength / 40)
                'find the height of the data point on the Y axis:

                y = Origin.Y + CInt(v * yAxisLength / maxVolts)
                'Put the point in the array
                DataPoints(i) = New Point(x, y)

            Next
            'Draw the waveform:        
            e.Graphics.DrawCurve(Pens.Green, DataPoints)

        End If

Btw, after placing all the code into the program, this is what i observe [ please see attached image ] Hmm.. its still a straight line though but it is varying quantity against time. So i believe its correct ?