#3373 closed enhancement (duplicate)
Make worldfile priority configurable
Reported by: | craigleat | Owned by: | warmerdam |
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Priority: | normal | Milestone: | 1.8.0 |
Component: | GDAL_Raster | Version: | svn-trunk |
Severity: | normal | Keywords: | worldfile |
Cc: |
Description
When reading a raster dataset GDAL currently only uses the ESRI worldfile as a fall-back if georeferencing is not found in the raster file. This approach assumes that a user wants the internal georeferencing. I think this assumption is too strict and at least three use cases exist where it is desirable to override the internal georeferencing.
- The creator of a read only dataset inserted an incorrect parameter(s) into the georeferencing string.
- The dataset was created with false eastings or northings and you wish to use it without these shifts. Think of overlaying data from different providers.
- You wish to use data created in standard Transverse Mercator in the south orientated Transverse Mercator projection. Only a change of sign is required and this is easily achieved via a worldfile.
The above requirements can be achieved using the virtual raster driver (.vrt), but somehow the prevalence of worldfiles is more prolific. If an environment variable (WORLDFILE_PRIORITY) existed the priority would at least be configurable and the default would be unset hence no priority.
Change History (2)
follow-up: 2 comment:1 by , 14 years ago
Resolution: | → duplicate |
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Status: | new → closed |
Duplicate of #3374.