Hi,
I am new here. Try to work through the primer, but couldn't figure out
how the VB script of the Nested Loops example works. It doesn't for
me, it only gives a diagonal of points.

For i = 0 To Pts.Count() - 1 Step GS 'Pts.Count = 4; GS =4 so i = 0 to
3 with step 4????????????
      'Declare a row of points
      Dim Row As New List (Of On3DPoint)'this happens every cycle...
      For j = i To i + GS - 1
        'Get a reference of the point
        Dim pt As On3dPoint'this happens every cycle, but pt stays Pts
(j)...
        pt = Pts(j)
        'Add point to the row
        Row.Add(pt)
      Next
      'Add row to the grid
      Grid.Add(Row)
    Next

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