[GRASS-dev] [GRASS GIS] #2637: Get direction raster in clockwise degrees starting from the North

[GRASS GIS]

#2637: Get direction raster in clockwise degrees starting from the North
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  Reporter:  cgravelm     |      Owner:  grass-dev@…
      Type:  enhancement  |     Status:  new
  Priority:  normal       |  Milestone:  7.4.1
 Component:  Raster       |    Version:  7.0.0
Resolution:               |   Keywords:
       CPU:  Unspecified  |   Platform:  MacOSX
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Comment (by hellik):

 Replying to [comment:22 mmetz]:
 >Therefore I suggest to produce zero aspect for zero slope or if slope is
 < min_slope. NULL is then reserved for those cells where slope and aspect
 can not be computed. This also means that when converting CCW from East to
 CW from North, North must be encoded as 360 degrees, not 0 degrees.

 what about to assign -1 for cells with zero slope or slope is < min_slope?

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Ticket URL: <https://trac.osgeo.org/grass/ticket/2637#comment:24>
GRASS GIS <https://grass.osgeo.org>