copying a Uint16 array

copying a Uint16 array

• Sniper167

  Say we have the 2d array (x,y) that looks like this:
  
  increasing x -->
  
  y 0 0 0 0
  | 0 0 0 0
  V 0 0 0 0
  
  Then the corresponding indexes in a flattened version could be:
  
  0 1 2 3
  4 5 6 7
  8 9 10 11
  
  So an index is given by
  (x position + no. of items in the rows above the current one))
  (x Position + (no. of rows above * no. of items in 1 row))
  (x Position + ( y Position * no. of items in 1 row))
  
  Ok, the other problem is that in vb.net the arrays are 0 based. If you declare them like vb6 arrays then they will always have a spare slot:
  
  Dim myArray(0) As Integer ' room for 1 item
  Dim myArray(10) As Integer ' room for 11 items...
  
  Dim myArray(width, height) As UInt16
  ' total size: (width + 1) * (height + 1)
  
  So, it should be something like:
  
  

  Dim buffer(image_height - 1, image_width - 1) As System.UInt16

  For a = 0 To image_height - 1

  retcode = FLIGrabRow(device, buffer(a, 0), image_width) ' No idea - just guessing
  

  Stat_bar.Panels(2).Text = Format((100 * a) / image_height, "0") & "%"

  Next

  Dim buffer2((image_width * image_height) - 1) As System.UInt16

  For a = 0 To image_height - 1
  

  For b = 0 To image_width - 1
  

  buffer2(b + (a * image_width)) = buffer(a, b)

  Next

  Next

  
  
  

• Brian McKinney

  Dim arr1 As UInt16(,)
  Dim arr2 As UInt16()

  ReDim arr1(10, 10) 'Some random size

  'Loop through the array.
  For i As Integer = 0 To 10
  For n As Integer = 0 To 10
  arr1(i, n) = (i * n) + (i + n) 'Set array position to some value
  Next
  Next

  ReDim arr2(arr1.Length) 'Redim the new array to correct size

  'Loop through the array aagin.
  For i As Integer = 0 To 10
  For n As Integer = 0 To 10
  arr2((i * 10) + n) = arr1(i, n) 'Set the value of the new array. (Note, this will process in order of (0,0) (0,1) (0,2) and so on....
  Next
  Next

  For i As Integer = 0 To arr2.GetUpperBound(0)
  Debug.Print(arr2(i))
  Next

  
  
  

• ShurikAg

  Thanks for the reply Dustin,

  But when i try your code and compare the two array's, they are not the same ....

  it misses one value at the end of each "row"

  Guy

  
  
  

• Warren13

  Thanks a lot joOls, it works !
  
  
• copying a Uint16 array