User (Legacy) Posted June 19, 2003 Report Share Posted June 19, 2003 How can I increase speed for RealTime Graph 1. With RealTime examples give on web site, I increase the Timer to 0.01 sec So I'm supposed to have 100 data per sec. The graphic did not follow at this speed How can I go faster (maybe 100- 250 hz for 1 series, 50 hz for 2 series, ..) 2. I try, (for my application needs) to store the data into a dataSet and link the data set to the graph, but I'm not sure it's the right procedure (It could be interesting for real-time ...) ex. 'initialization Chart1.DataSource = mDS_Data.Tables("AcqData") 'data receiving Private Sub OnData(ByVal DBL_Data As Double) Handles Instrument.OnDataReceiving Dim DR_curRow As DataRow DR_curRow = mDS_Data.Tables("AcqData").NewRow() DR_curRow("Time") = mDBL_Rate * mDS_Data.Tables("AcqData").Rows.Count If isNothing (DBL_Data) Then DR_curRow("Data") = DBNull.Value Else DR_curRow("Data") = DBL_Data End If mDS_Data.Tables("AcqData").Rows.Add(DR_curRow) Chart1.DataSource = Nothing Chart1.DataSource = Me.mDS_Data.Tables(0) Chart1.Refresh() End Sub Thanks Phil G firstname.lastname@example.org IT Manager FISO Technologies www.fiso.com Link to comment Share on other sites More sharing options...
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