matrices in VB express

What is best way to program matrices in VB Is it a predeife structure or do I need to create such a structure

ALso is there a way to reverse the coordinates of the X,Y on forms..currently X coord. goes left to right and Y up n down. Is there a way to change that



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matrices in VB express

  • GethWho

    The best way is probably to use somebody else's code. To inverse to coordinate system, translate the Y-coordinate with Me.Height - Y.



  • Alexander72

    To invert the coordinate system or perhaps the values on a scrollbar for instance

    You take the maximum value and subtract the current value.

    Example of this for a scrollbar is (it shows the real value and the calculate value)

    Public Class Form1
    Private Sub VScrollBar1_Scroll(ByVal sender As System.Object, ByVal e As System.Windows.Forms.ScrollEventArgs) Handles VScrollBar1.Scroll
    Label1.Text = VScrollBar1.Value.ToString
    Label2.Text = (VScrollBar1.Maximum - VScrollBar1.Value).ToString
    End Sub
    End Class

    My though is probably that you are going to be doing some graphing and the origin in the real world is normally bottom, left with values increasing to the right and up. Whereas windows forms origin is the top, left increase to the right and down. So you'll probably be inverting only the y coordinate.


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