Changes between Version 26 and Version 27 of NetCDF_Improvements

Timestamp:

Oct 26, 2011, 4:49:31 PM (13 years ago)

Author:

etourigny

Comment:

--

NetCDF_Improvements

@@ -24 +24 @@
 
  * NetCDF created by GDAL not CF-1.0 compliant for geographical grids (issue #2129) - fixed in trunk
- * netcdf driver does not read and write CF-1.0 coordinate system properly for projected CRS (issue #2893)
-   * support for read and write of projected coordinate values
-   * export std_parallel variables into a single standard_parallel netcdf attribute
-   * add proper datum import and export support 
+ * netcdf driver does not read and write CF-1.0 coordinate system properly for projected CRS (issue #2893) - mostly fixed in trunk
+   * support for read and write of projected coordinate values - fixed
+   * export std_parallel variables into a single standard_parallel netcdf attribute - fixed
+   * add proper datum import and export support - fixed
    * issues with specific projections: 
      * rotated_pole (#4285 and #4251)
      * Stereographic vs. Oblique_Stereographic (#4267)
-     * others not assigned a bug report
+     * others not assigned a bug report - wiki:NetCDF_ProjectionTestingStatus
  * add CF compliance checker to the autotests (issue #4233) - fixed
- * support "coordinates" attribute for projections which are not supported by GDAL/PROJ.4 (i.e rotated pole) (issue #4251)
+ * support "coordinates" attribute for projections which are not supported by GDAL/PROJ.4 (i.e rotated pole) (issues #4285 and #4251)
 
 
@@ -42 +42 @@
 === Issues with the current implementation ===
  * The import process does not use the Conventions attribute and does not consider different possible Conventions (COARDS, CF-1.0, CF-1.5, etc.)
- * netcdf history global attribute should be updated. Does GDAL offer a history mechanism?
- * CF-version of file read could be kept in an internal variable, as well as CF-version for file creation
+ * netcdf history global attribute should be updated. Does GDAL offer a history mechanism? - needs new function in gdal.h
+ * CF-version of file read could be kept in an internal variable, as well as CF-version for file creation - in trunk CF-1.5 is exported
 
 === Issues that have been resolved (in trunk)  ===
@@ -58 +58 @@
 
  * Which datum should be set when there is no datum information at all in a netcdf file? WGS84 or none?
- * How to export datum information that is present in a GDAL file, in a way that it can be restored later? 
- * Import should correctly set appropriate CRS/datum information (e.g. WGS84) from the information in the netcdf file, when sufficient information is available.
+ * How to export datum information that is present in a GDAL file, in a way that it can be restored later? - current codes uses spatial_ref
+ * Import should correctly set appropriate CRS/datum information (e.g. WGS84) from the information in the netcdf file, when sufficient information is available. - in trunk compares WKT and CF grid_mapping and checks for conflict. There are issues with auto-detecting named CRS/datum based on spheroid only.
 
 
@@ -72 +72 @@
  * Support Create() method so that gdalwarp can be used on a netcdf file - #4221
  * ~~Fix access to different netcdf file types: nc (classic), nc2 (64-bit) and nc4 (NetCDF4 with HDF5 support) - #3890 and #2379~~
- * Add option for file type (nc,nc2,nc4) at export (#3166) -> fixed in trunk, but needs Win32 support and autotests (nc4/nc2, import conflict w/HDF)
- * Support compressed netcdf data (szip, zip) 
- * fix the y-axis for import and export (issues #4251 and #4284) 
- * support packed data (with add_offset and scale_factor) transparently (see bug #3797)
+ * Add option for file type (nc,nc2,nc4) at export (#3166) -> fixed in trunk, but needs Win32 support and autotests
+ * Support compressed netcdf (DEFLATE with NC4 or NC4C) 
+ * fix the y-axis for import and export (issues #4251 and #4284) - in trunk option for bottom-up
+ * support packed data (with add_offset and scale_factor) transparently (see bug #3797) - will not implement as no sufficient need
 
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