Draw graph on picture box

Hi :wave:
I need to plot a series graph ( x-axis is 'time in minute',y-axis is data) on a picture box uisng VB6.0 ( no dotNET). The data are from a data file named mydata.txt.
But I have not figure out how to do it . could somebody pls show me how?

Thanks
:wave:

Try this link.

http://www.vbforums.com/showthread.p...ighlight=graph

Hi Lintz
I tried , but I need to read data from the datafile, how?
I also need a scaled x,y axis.
Thanks

I'm not sure about the scales (but I wouldn't mind knowing myself :)) but this will open a file and plot the data.

VB Code:

Private Sub Form_Load()
Dim xPoint  As Single
Dim yPoint As Single
Dim s As String
Dim PlotData() As String
 
Picture1.ScaleHeight = 100
Picture1.ScaleWidth = 100
 
FirstValue = True
 
Open "C:\MyData.txt" For Input As #1
 
Do Until EOF(1) = True
 
Line Input #1, s
PlotData = Split(s, ",")
 
Picture1.Line (xPoint, yPoint)-(PlotData(0), PlotData(1))
 
xPoint = PlotData(0)
yPoint = PlotData(1)
 
Loop
 
Close #1
End Sub

Hi Lintz

Thank you very much