[GRASS-user] Python/Ctype interface: how to get coordinates for raster layer.

[peter.loewe at gmx.de]

hi all,

for a GRASS 6.x script I'm using the ctype interface
to iterate over all lines (and cells) of a raster layer:

... 

for rown in xrange(rows):
     G_get_raster_row(infd, inrast, rown, data_type)
     print rown, inrast[0:cols]
...
[taken from the ctypes raster example (http://fossies.org/dox/grass-6.4.2/example__ctypes_8py_source.html)]


Q:The (geographic) coordinates for each raster cell should be accessible via 
coo_col = G_col_to_easting((thecolumn + 0.5), "REGION")
coo_row = G_row_to_northing((therow + 0.5), "REGION")

=> how is "REGION"-related information 1) derived and 2) referred to on this level ?

Peter
-- 
Dr. Peter Löwe
<peter.loewe at gmx.de>





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