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Thread: Stream network from flow accumulation whihc is based on d4 flow direction

  1. #1
    Taiseer Harb
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    Default Stream network from flow accumulation whihc is based on d4 flow direction

    Hi,

    how can I generate stream network from flow accumulation whihc is based on d4 flow direction.
    I want to avoid diagonal connections in rivers.

    Thanks

  2. #2
    Mark Boucher
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    Default Re: Stream network from flow accumulation whihc is based on d4 flow direction

    If I understand what you are wanting to do, all I can think of, off the top of my head, is you'd have to create the fdr using the 8 directions in arc hydro and then use the raster calculator to convert the diagonal grid values to some other horizontal of vertical (H/V) grid value. I don't know how you would make the decision as to which H/V to convert to which diagonal values. I assume you may get some very strange results.

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