Opened 12 years ago
Last modified 5 years ago
#4850 closed defect
gdalwarp discards data when the target extent is too large — at Version 3
| Reported by: | sfllaw | Owned by: | warmerdam |
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| Priority: | normal | Milestone: | closed_because_of_github_migration |
| Component: | default | Version: | 1.9.1 |
| Severity: | normal | Keywords: | |
| Cc: | simon.law@…, mdupuis@… |
Description (last modified by )
gdalwarp discards 25 pixels longitudinally, shown as black borders, on the west or east side if the target extent is too large on that side.
We have a sample 512×512 EPSG:3785 image called bluemarble.tif, attached to this ticket.
bluemarble-warped.tif is the output generated when we run the following command:
gdalwarp -q -of GTiff -t_srs EPSG:3785 -te -20037508.3428 -20037508.34 20037508.34 20037508.34 -ts 512 512 bluemarble.tif bluemarble-warped.tif
As you can see, there are 25 pixels cropped from the western edge of the picture, replaced with (0, 0, 0). This is because -20037508.3428 m for the western extent is supposed to be -20037508.342789244.
If we pass in a -dstnovalue option to the command, it behaves correctly.
Change History (6)
comment:1 by , 12 years ago
| Description: | modified (diff) |
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| Summary: | u → gdalwarp discards data when the target extent is too large |
comment:2 by , 12 years ago
| Description: | modified (diff) |
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by , 12 years ago
| Attachment: | bluemarble.tif added |
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by , 12 years ago
| Attachment: | bluemarble-warped.tif added |
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comment:3 by , 12 years ago
| Description: | modified (diff) |
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Source image