[gdal-dev] GDAL/OGR 1.4.4 Release Candidate 1 - NOT SO GOOD news

Joaquim Luis jluis at ualg.pt
Fri Nov 23 19:09:40 EST 2007


The netCDF driver is still broken.
I have repeatedly reported that netCDF COARDS compliant grids created by 
GMT have their header reported incorrectly.

fast example

grdmath -R-10/10/-10/10 -I1 = lixo.grd

C:\>gdalinfo NETCDF:"lixo.grd":z
Driver: netCDF/Network Common Data Format
Size is 21, 21
Coordinate System is `'
Origin = (-10.500000000000000,-10.500000000000000)
Pixel Size = (1.000000000000000,1.000000000000000)
Metadata:
  NC_GLOBAL#Conventions=COARDS, CF-1.0
  NC_GLOBAL#title=lixo.grd
  NC_GLOBAL#history=grdmath -R-10/10/-10/10 -I1 = lixo.grd
  NC_GLOBAL#GMT_version=GMT4.2
  NC_GLOBAL#node_offset=0
  z#long_name=z
  z#_FillValue=1.#QNAN0e+000
  z#actual_range=00
  z#coordinates=x y
  x#long_name=x
  x#actual_range=-1010
  y#long_name=y
  y#actual_range=-1010
Corner Coordinates:
Upper Left  ( -10.5000000, -10.5000000)            <===    WRONG  
Lower Left  ( -10.5000000,  10.5000000)
Upper Right (  10.5000000, -10.5000000)
Lower Right (  10.5000000,  10.5000000)
Center      (   0.0000000,   0.0000000)
...

I have also submitted a patch that corrects this problem
http://trac.osgeo.org/gdal/ticket/1926
why is it being ignored?

Joaquim Luis



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