| Age | Commit message (Collapse) | Author |
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This option is to load grid(s) that have both the horizontal and
vertical velocities in the same file.
Can be tested with the following grid
https://github.com/rouault/sample_proj_gtiff_grids/blob/master/nkgrf03vel_realigned.tif
converted from the original .ct2 and .gtx with
```
gdal_translate nkgrf03vel_realigned.vrt nkgrf03vel_realigned.tif -co COMPRESS=DEFLATE -co PREDICTOR=3 -co BLOCKYSIZE=241 -co INTERLEAVE=BAND
```
where nkgrf03vel_realigned.vrt is
```
<VRTDataset rasterXSize="223" rasterYSize="241">
<SRS dataAxisToSRSAxisMapping="2,1">GEOGCRS["Unknown based on GRS80",
DATUM["Unknown based on GRS80",
ELLIPSOID["GRS 1980",6378137,298.257222101,
LENGTHUNIT["metre",1]]],
PRIMEM["Greenwich",0,
ANGLEUNIT["degree",0.0174532925199433]],
CS[ellipsoidal,2],
AXIS["geodetic latitude (Lat)",north,
ORDER[1],
ANGLEUNIT["degree",0.0174532925199433]],
AXIS["geodetic longitude (Lon)",east,
ORDER[2],
ANGLEUNIT["degree",0.0174532925199433]]]
</SRS>
<GeoTransform> 2.9166666666666670e+00, 1.6666666666666666e-01, 0.0000000000000000e+00, 7.3041666666666686e+01, 0.0000000000000000e+00, -8.3333333333333329e-02</GeoTransform>
<Metadata>
<MDI key="DESCRIPTION"></MDI>
<MDI key="area_of_use">Nordic and Baltic countries</MDI>
<MDI key="AREA_OR_POINT">Point</MDI>
<MDI key="TIFFTAG_COPYRIGHT">The Nordic Geodetic Commission. Creative Commons Attribution 4.0 https://creativecommons.org/licenses/by/4.0/</MDI>
<MDI key="TIFFTAG_DATETIME">2019:12:30 00:00:00</MDI>
<MDI key="TIFFTAG_IMAGEDESCRIPTION">Deformation model covering the Nordic and Baltic countries. Used in transformations between global reference frames and the local realisations of ETRS89 in the Nordic and Baltic countries</MDI>
<MDI key="TYPE">VELOCITY</MDI>
</Metadata>
<VRTRasterBand dataType="Float32" band="1">
<Description>east_velocity</Description>
<UnitType>mm/year</UnitType>
<SimpleSource>
<SourceFilename relativeToVRT="0">/home/even/proj/proj-datumgrid/europe/nkgrf03vel_realigned_xy.ct2</SourceFilename>
<SourceBand>2</SourceBand> <!-- GDAL exposes the first physical component of the file (longitude offset normally, here east velocity) as the second band -->
<SrcRect xOff="0" yOff="0" xSize="223" ySize="241" />
<DstRect xOff="0" yOff="0" xSize="223" ySize="241" />
</SimpleSource>
</VRTRasterBand>
<VRTRasterBand dataType="Float32" band="2">
<Description>north_velocity</Description>
<UnitType>mm/year</UnitType>
<SimpleSource>
<SourceFilename relativeToVRT="0">/home/even/proj/proj-datumgrid/europe/nkgrf03vel_realigned_xy.ct2</SourceFilename>
<SourceBand>1</SourceBand> <!-- and the second physical component (latitude offset normally, here north velocity) as the first band -->
<SrcRect xOff="0" yOff="0" xSize="223" ySize="241" />
<DstRect xOff="0" yOff="0" xSize="223" ySize="241" />
</SimpleSource>
</VRTRasterBand>
<VRTRasterBand dataType="Float32" band="3">
<Description>up_velocity</Description>
<UnitType>mm/year</UnitType>
<SimpleSource>
<SourceFilename relativeToVRT="0">/home/even/proj/proj-datumgrid/europe/nkgrf03vel_realigned_z.gtx</SourceFilename>
<SourceBand>1</SourceBand>
<SrcRect xOff="0" yOff="0" xSize="223" ySize="241" />
<DstRect xOff="0" yOff="0" xSize="223" ySize="241" />
</SimpleSource>
</VRTRasterBand>
</VRTDataset>
```
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PROJ_NETWORK_ENDPOINT or proj_context_set_url_endpoint()
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and networking enabled
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Used for French NTF to RGF93 transformation using gr3df97a.tif grid
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Doc: resource_files.rst updates
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Doc: add a operations_computation.rst describe the magic behind createOperations()
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and IGNF init-files
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(https://github.com/OSGeo/PROJ/pull/1755) regarding how resource files are looked for
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(without recent Win32 specific addition)
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Update README, install.rst and resource_files.rst
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- Content partly borrowed from @kbevers ' suggestions of
https://github.com/OSGeo/PROJ/issues/1751#issuecomment-558976968
- Remove mention about Swiss grids. Included in the europe package
- Remove section about HARN / HPGN grids. Those have been included
in the north-america package, and there is no longer any point in
mentionning the particularities of how ancient ones had to be
used with PROJ.4
- Remove section about obsolete proj_defs.dat
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Co-Authored-By: Kristian Evers <kristianevers@gmail.com>
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Co-Authored-By: Kristian Evers <kristianevers@gmail.com>
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Co-Authored-By: Kristian Evers <kristianevers@gmail.com>
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Co-Authored-By: Kristian Evers <kristianevers@gmail.com>
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Co-Authored-By: Kristian Evers <kristianevers@gmail.com>
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Co-Authored-By: Kristian Evers <kristianevers@gmail.com>
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Co-Authored-By: Kristian Evers <kristianevers@gmail.com>
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Co-Authored-By: Kristian Evers <kristianevers@gmail.com>
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Co-Authored-By: Kristian Evers <kristianevers@gmail.com>
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Co-Authored-By: Kristian Evers <kristianevers@gmail.com>
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Co-Authored-By: Kristian Evers <kristianevers@gmail.com>
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Co-Authored-By: Kristian Evers <kristianevers@gmail.com>
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Co-Authored-By: Kristian Evers <kristianevers@gmail.com>
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Co-Authored-By: Kristian Evers <kristianevers@gmail.com>
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Co-Authored-By: Kristian Evers <kristianevers@gmail.com>
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Co-Authored-By: Kristian Evers <kristianevers@gmail.com>
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Co-Authored-By: Kristian Evers <kristianevers@gmail.com>
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Co-Authored-By: Kristian Evers <kristianevers@gmail.com>
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Co-Authored-By: Kristian Evers <kristianevers@gmail.com>
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Co-Authored-By: Kristian Evers <kristianevers@gmail.com>
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Co-Authored-By: Kristian Evers <kristianevers@gmail.com>
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Co-Authored-By: Kristian Evers <kristianevers@gmail.com>
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Co-Authored-By: Kristian Evers <kristianevers@gmail.com>
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Co-Authored-By: Kristian Evers <kristianevers@gmail.com>
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Co-Authored-By: Kristian Evers <kristianevers@gmail.com>
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Co-Authored-By: Kristian Evers <kristianevers@gmail.com>
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Co-Authored-By: Kristian Evers <kristianevers@gmail.com>
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createOperations()
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PROJ is now a proper OSGeo project, let's advertise it as such!
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Optimize pipelines involving horizontal shift grid, vertical shift grid, inverse horizontal shift grid (take 2)
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