Opened 15 years ago
Closed 15 years ago
#3041 closed defect (duplicate)
GDALWarp produces wrong output when going from NAD27 UTM to WGS84 UTM (Zone 10)
| Reported by: | edomazlicky | Owned by: | warmerdam |
|---|---|---|---|
| Priority: | normal | Milestone: | 1.7.0 |
| Component: | GDAL_Raster | Version: | svn-trunk |
| Severity: | normal | Keywords: | |
| Cc: |
Description
GDALWarp (and it seems the GDAL library itself) is not producing the correct output when projecting from NAD27 UTM to WGS84 UTM (Zone 10 all I tested). This bug can be reproduced using FWTools 2.4.0 which seems to use a recent SVN version of GDALWarp. The file I used was the DRG of the Mount Rainier West Quad availabe here: http://rocky2.ess.washington.edu/data/raster/drgclip/yakima/o46121g7.zip
And the command I used was: gdalwarp -t_srs epsg:32610 o46121g7.tif o46121g7_new.tif Then I set my environment to FWTools 2.2.8 and re-ran the same command and compared the two files. You can see from the attached gdalinfo dumps that there are significant differences in the Origin between the old version and new version. As a consequence the file itself it not projected correctly, points such as the summit of Mount Rainier 46.8528773, -121.7604938 (WGS84) do not line up correctly.
Output from new GDALWarp SVN version