In the early Friday morning of mid May, I got an email from one of my team member about raster misalignment problem in ArcGIS10. I also tried to overlay couples of previously working Tiff
and Grid raster files in ArcMap9.3 and ArcMap10. The ArcMap9.3 overlay raster
files perfectly aligned as we all desired, but ArcMap10 did not.
 |
| Unaligned |
 |
| Aligned |
From the ESRI website, I got to know that the issue of misalignment
of Tiff in ArcMap10 is a bug in ArcGIS 10. The ESRI team announced two
solutions to solve Tiff shift into wrong geographic locations:
1) Installing ArcGIS 10 Raster Format patch: http://resources.arcgis.com/content/patches-and-service packs?fa=viewPatch&PID=17&MetaID=1648#bugs
2) Updating ArcGIS10 service pack 1 to ArcGIS10 Service Pack
2: http://resources.arcgis.com/content/patches-and-service-packs?fa=viewPatch&PID=17&MetaID=1752
Even I installed the patch and SP2; it did not work in my
system.
Those updates supposed to be change the underlying GDAL in the ArcGIS but didn't work in our case. Therefore, we decided to work using separate GDAL module to bypass the dependancy of ArcPy while working with Tiff. I will write back how much progress we make with GDAL.
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