[GRASS-dev] r.surf.nnbathy + v.out.ascii?

[Hamish]

Hi,

I've added a new -r flag and fs= option to v.out.ascii in CVS which may
make it more appropriate than having to run v.to.rast first to make a
raster grid.

beware the -r flag (only export within current region) is 3D aware, so
top and bottom region settings matter.

I thought I remembered something about the input to nnbathy input
needing to be sorted by Y value. Is this true? Does it have to be
gridded or can in be randomly spaced?



r.surf.nnbaty additions:

#%option
#% key: vect
#% type: string
#% gisprompt: old,vector,vector
#% description: The 3D points vector to interpolate
#% required : no
#%END

...

INPUT_R="$GIS_OPT_INPUT"
INPUT_V="$GIS_OPT_VECT"
OUTPUT="$GIS_OPT_OUTPUT"

if [ -n "$INPUT_R" ] && [ -n "$INPUT_V" ] ; then
  echo "Please pick a single input map." 1>&2
  exit 1
fi
if [ -z "$INPUT_R" ] && [ -z "$INPUT_V" ] ; then
  echo "Please pick a single input map." 1>&2
  exit 1
fi

...

if [ -n $INPUT_R ] ; then
  # spit out non-null (-n) raster coords + values to be interpolated
  echo "Exporting data ..."  1>&2
  r.out.xyz fs=space input="${INPUT_R}" > $TMP.${PROG}.input_xyz
else
  # check region top & bottom aren't culling any!
  eval `g.region -g3`
  eval `v.info -g "${INPUT_V}"`
  # check somehow
  v.out.ascii -r in="${INPUT_V}" fs=space > $TMP.${PROG}.input_xyz
  #  sort by Y values?   | sort -k2 -t'|'
fi



Hamish