[GRASS-dev] [GRASS GIS] #2574: v.surf.icw - not working with the last version of grass7

[GRASS GIS]

#2574: v.surf.icw - not working with the last version of grass7
--------------------------+-------------------------
  Reporter:  bhlevca      |      Owner:  grass-dev@…
      Type:  defect       |     Status:  closed
  Priority:  normal       |  Milestone:  7.2.0
 Component:  Addons       |    Version:  svn-trunk
Resolution:  fixed        |   Keywords:  v.surf.icw
       CPU:  Unspecified  |   Platform:  Unspecified
--------------------------+-------------------------

Comment (by hamish):

 Replying to [comment:4 bhlevca]:
 > I have a large number of points (~20000) and the
 > script runs fine until it reaches the point of
 > summation of cost weights.

 Hi,

 I'm just curious how this job went? The module was
 originally written for labor intensive water sample
 data (CTD) with maybe a couple hundred vector points max.
 Running r.cost 20000 times can be quite computationally
 intensive!

 My usual approach for making a bathy surface interpolation
 -after r.in.xyz gridding
 is to use the r.surf.nnbathy module which makes a simple
 first pass mask (very similar to r.hull) then also run
 r.buffer on the input points at an appropriate mean distance
 between points *3 or so and use that as a better mask.
 v.to.rast area conversion of the coastline helps clip it too.


 happy 2017,
 Hamish

--
Ticket URL: <https://trac.osgeo.org/grass/ticket/2574#comment:13>
GRASS GIS <https://grass.osgeo.org>