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| author | Even Rouault <even.rouault@spatialys.com> | 2021-11-06 18:44:12 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-11-06 18:44:12 +0100 |
| commit | 01afa55e56148a668eabeb271a15352f920b3bca (patch) | |
| tree | a1ed24a97b3aefe3210fed8abd89283d1fbe0df9 /src | |
| parent | dfe1de8c0ebfea95702564903587f95c77cc6d0f (diff) | |
| parent | bd251fa2b1fe929f0070dfdb80d41afb3359b974 (diff) | |
| download | PROJ-01afa55e56148a668eabeb271a15352f920b3bca.tar.gz PROJ-01afa55e56148a668eabeb271a15352f920b3bca.zip | |
Merge pull request #2926 from snowman2/warn
DOC: Add warning in proj_as_proj_string about potential information loss with CRS
Diffstat (limited to 'src')
| -rw-r--r-- | src/iso19111/c_api.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/iso19111/c_api.cpp b/src/iso19111/c_api.cpp index 96351619..cbc6485a 100644 --- a/src/iso19111/c_api.cpp +++ b/src/iso19111/c_api.cpp @@ -1589,6 +1589,11 @@ const char *proj_as_wkt(PJ_CONTEXT *ctx, const PJ *obj, PJ_WKT_TYPE type, * The returned string is valid while the input obj parameter is valid, * and until a next call to proj_as_proj_string() with the same input * object. + * + * \warning If a CRS object was not created from a PROJ string, + * exporting to a PROJ string will in most cases + * cause a loss of information. This can potentially lead to + * erroneous transformations. * * This function calls * osgeo::proj::io::IPROJStringExportable::exportToPROJString(). |