4

Is there a way that I can limit flow direction to D4 instead of having it use D8?

Preferably looking for a way to do it within ArcMap.

  • 1
    The question you are asked is very short but it's good question if you explain in more detailed.For example what is D4,D8. Did you try to write a script about this? – BBG_GIS Nov 21 '17 at 20:51
  • Can be done but 4 remaining are going to be diagonal. Set some cells to nodata, e.g. white ones on a chess board. – FelixIP Nov 21 '17 at 22:44
  • @wetland, if you look up any flow direction tool, it goes over what D8 is: pro.arcgis.com/en/pro-app/tool-reference/spatial-analyst/… – Brandon G. Nov 22 '17 at 19:00
  • For D4, I would just like to limit the direction options to straight north, south, east, and west. – Brandon G. Nov 22 '17 at 19:01
3

Let me know if this is what you expecting to see:

enter image description here

I'll post workflow.

  • That is what I was looking for! We decided to stick to D8 and just work around it. But it may be worth posting if other people come to this question. – Brandon G. Feb 20 '18 at 16:58

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