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Bugfix #2115 develop Rotated LatLon #2117

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merged 2 commits into from
Apr 1, 2022
Merged

Bugfix #2115 develop Rotated LatLon #2117

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3699d06
Per #2115, fix the bug in the develop branch as well.
JohnHalleyGotway Mar 31, 2022
832c8e9
Per #2115, add a call to plot_data_plane for this rotated lat/lon grid.
JohnHalleyGotway Mar 31, 2022
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6 changes: 4 additions & 2 deletions met/src/libcode/vx_data2d_nccf/nccf_file.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -2430,10 +2430,12 @@ void NcCfFile::get_grid_mapping_rotated_latitude_longitude(const NcVar *grid_map

data.name = rotated_latlon_proj_type;

// Derive south pole location from the north pole
// Derive south pole location from the north pole:
// - Reverse the sign of the latitude
// - Add 180 to the longitude and switch from degrees east to west
data.true_lat_south_pole = -1.0 * get_att_value_double(grid_np_lat_att);
double np_lon = rescale_lon(get_att_value_double(grid_np_lon_att));
data.true_lon_south_pole = rescale_lon(-1.0 * (180.0 - fabs(np_lon)));
data.true_lon_south_pole = rescale_lon(-1.0 * (np_lon + 180.0));

// Copied from the LatLon data structure
data.rot_lat_ll = ll_data.lat_ll;
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14 changes: 14 additions & 0 deletions test/xml/unit_plot_data_plane.xml
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Expand Up @@ -271,6 +271,20 @@
</output>
</test>

<test name="plot_data_plane_NCCF_rotlatlon">
<exec>&MET_BIN;/plot_data_plane</exec>
<param> \
&DATA_DIR_MODEL;/nccf/prods_op_ukv_rotated_latlon_20220301_00_000.nc \
&OUTPUT_DIR;/plot_data_plane/plot_data_plane_NCCF_rotlatlon.ps \
'name="surface_altitude"; level="(*,*)";' \
-title "Rotated Lat/Lon Surface Altitude" \
-v 1
</param>
<output>
<ps>&OUTPUT_DIR;/plot_data_plane/plot_data_plane_NCCF_rotlatlon.ps</ps>
</output>
</test>

<test name="plot_data_plane_GRIB2_PROB">
<exec>&MET_BIN;/plot_data_plane</exec>
<param> \
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