#32352 closed Cleanup/optimization (invalid)
Django tests uses SRIDs which gives different results by default on different versions of proj4
Reported by: | Jani Tiainen | Owned by: | nobody |
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Component: | GIS | Version: | 3.1 |
Severity: | Normal | Keywords: | gis geometry transformation |
Cc: | Triage Stage: | Unreviewed | |
Has patch: | no | Needs documentation: | no |
Needs tests: | no | Patch needs improvement: | no |
Easy pickings: | no | UI/UX: | no |
Description
Note: this is not actually a bug in Django but default behavior of proj4 library has been changed.
In Django unit tests are few tests that uses WGS84 to NAD83(HARN) coordinate transformation.
That particular transformation includes datum shift and there are at least two transformation methods.
This may be encountered in various places, specially it depends on version of proj4 used in the system what transformation method is used by default.
See issue in GDAL repo for detailed description what/why:
https://github.com/OSGeo/gdal/issues/3377#issuecomment-759651330
Change History (4)
comment:1 by , 4 years ago
Resolution: | → duplicate |
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Status: | new → closed |
comment:4 by , 4 years ago
Resolution: | duplicate → invalid |
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Different PROJ versions use different transformations, all are correct as having a 1 meter accuracy.
These are differences in PROJ versions that cannot and should not be handled in Django itself.
Duplicate of #32353.