Name

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      BLEND

Purpose

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      Sets up weighting array for blending arrays together.

Category

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Calling Sequence

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      WT = BLEND(N,I1,I2)

Inputs

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      N = size of array to make. in
      I1, I2 = indices of first and last values to blend. in

Keyword Parameters

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Outputs

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      WT = weighting array. out
          WT(0:I1) = 0
          WT(I1:I2) = cosine shaped weighting from 0 to 1.
          WT(I2:*) = 1

Common Blocks

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Notes

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      Notes: to blend arrays A and B: A*(1-WT) + B*WT
        starts with pure A and ends with pure B.

Modification History

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      Written by R. Sterner 6 Jan, 1986.
      R. Sterner, 2010 Apr 30 --- Converted arrays from () to [].
      Johns Hopkins University Applied Physics Laboratory.
  Copyright (C) 1986, Johns Hopkins University/Applied Physics Laboratory
  This software may be used, copied, or redistributed as long as it is not
  sold and this copyright notice is reproduced on each copy made. This
  routine is provided as is without any express or implied warranties
  whatsoever. Other limitations apply as described in the file disclaimer.txt.