Changes between Version 39 and Version 40 of NetCDF_exportUpdateChanges
- Timestamp:
- Oct 15, 2011, 10:10:41 AM (13 years ago)
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NetCDF_exportUpdateChanges
v39 v40 89 89 '''Related fix''': #2893 [[BR]] 90 90 '''New -co options''': 91 * WRITE_LONLAT=YES/NO/IF NEEDED (default: YES for geographic, IFNEEDED for projected) ->Note, this not implemented yet91 * WRITE_LONLAT=YES/NO/IF_NEEDED (default: YES for geographic, IFNEEDED for projected) ->Note, this not implemented yet 92 92 * TYPE_LONLAT=float/double (default: double for geographic, float for projected) 93 93 … … 100 100 We have also added a '-co' driver option listed above, that allows specification to also write 2D 'lat' and 'lon' arrays, which are specified as part of the CF-1 convention for map projections - but are not actually required for the Unidata-maintained NetCDF Java API and applications built upon them (eg ncWMS, Thredds Data Server). 101 101 102 The 'IFNEEDED' option of WRITE_LONLAT is usedin the case of exporting a projection which is not supported by the CF-1.5 standard (e.g. sinusoidal), so any CF-1.5 compliant software can locate the points on a lon/lat map.102 The WRITE_LONLAT=IF_NEEDED option is useful in the case of exporting a projection which is not supported by the CF-1.5 standard (e.g. sinusoidal), so any CF-1.5 compliant software can locate the points on a lon/lat map. 103 103 104 104 '''Rationale''': … … 122 122 * and individual corner coordinates (NN, SS, WE and WW). 123 123 124 The new implementation saves the GeoTransform array only if the lon/lat values are not written to the file, and the corner coordinates are never saved as they are redundant.124 The new implementation saves the GeoTransform array only for a geographic CRS, in the specific case that lon/lat values are not written to the file. The corner coordinates are never saved as they are redundant. 125 125 126 126 We propose adding a new WRITE_GDAL_TAGS driver creation option to allow the user to choose not to write these tags. However it would be set to 'YES' by default.