Opened 17 years ago
Last modified 12 years ago
#1637 closed enhancement
patch for 1.4.x : frmts/netcdf (NC_GLOBAL#{spatial_ref/GeoTransform}) — at Initial Version
| Reported by: | guest | Owned by: | warmerdam |
|---|---|---|---|
| Priority: | normal | Milestone: | 1.8.1 |
| Component: | GDAL_Raster | Version: | 1.4.1 |
| Severity: | normal | Keywords: | netcdf |
| Cc: | cermak@…, warmerdam, Mateusz Łoskot, Markus Neteler, Kyle Shannon |
Description
Recent events have us looking the the direct access Netcdf driver (frmts/netcdf). We discovered that the spatial_ref and GeoTransform global tags are ignored for non-complient CF-1.0 files.
Patch: http://ak.aoos.org/data/patch/frmts_netcdf_global_georef.patch
WRF data file, if needed: http://137.229.130.18/data/forecasts/AEFF/WRF/CIPWS12km/200705/14/00/wrfout_d01_2007-05-16_00.nc
(sorry about the size! 14 MB)
1.4.1: gdalinfo NETCDF:"wrfout_d01_2007-05-16_00.nc":T2
NC_GLOBAL#spatial_ref=+proj=stere +lon_0=-147.300003052 +lat_0=90
+lat_ts=60.2000007629 +a=6378273 +rf=298.279405043 +x_0=0 +y_0=0
NC_GLOBAL#GeoTransform=-541931.561016 12045.5692702 0 -3610575.06283 0
12025.6894815
T2#FieldType=104 T2#MemoryOrder=XY T2#description=TEMP at 2 M T2#units=K T2#stagger= T2#coordinates=XLONG XLAT
Corner Coordinates: Upper Left ( 0.0, 0.0) Lower Left ( 0.0, 72.0) Upper Right ( 90.0, 0.0) Lower Right ( 90.0, 72.0) Center ( 45.0, 36.0) Band 1 Block=90x1 Type=Float32, ColorInterp=Undefined
NoData Value=9.96920996838687e+36 Metadata:
NETCDF_VARNAME=T2 NETCDF_DIMENSION_Time=1
GDAL: GDALClose(NETCDF:wrfout_d01_2007-05-16_00.nc:T2) GDAL: GDALDeregister_GTiff() called.
With the above patch:
NC_GLOBAL#spatial_ref=+proj=stere +lon_0=-147.300003052 +lat_0=90
+lat_ts=60.2000007629 +a=6378273 +rf=298.279405043 +x_0=0 +y_0=0
NC_GLOBAL#GeoTransform=-541931.561016 12045.5692702 0 -3610575.06283 0
12025.6894815
T2#FieldType=104 T2#MemoryOrder=XY T2#description=TEMP at 2 M T2#units=K T2#stagger= T2#coordinates=XLONG XLAT
Corner Coordinates: Upper Left ( -541931.561,-3610575.063) Lower Left ( -541931.561,-2744725.420) Upper Right ( 542169.673,-3610575.063) Lower Right ( 542169.673,-2744725.420) Center ( 119.056,-3177650.241) Band 1 Block=90x1 Type=Float32, ColorInterp=Undefined
NoData Value=9.96920996838687e+36 Metadata:
NETCDF_VARNAME=T2 NETCDF_DIMENSION_Time=1
GDAL: GDALClose(NETCDF:wrfout_d01_2007-05-16_00.nc:T2) GDAL: GDALDeregister_GTiff() called.
