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Hi Garrett and Oscar …
I updated the ossim, gdal_plugin, and png_plugin source last
night. The changes include:
1. Lots of typecasts away from size_t to get rid of
many Visual Studio warnings during compilation.
2. Adding in the virtual reader/writer/overview builder (8
new files).
ossimVirtualImageHandler.cpp
ossimVirtualImageTiffWriter.cpp
ossimVirtualImageWriter.cpp
ossimVirtualOverviewBuilder.cpp
ossimVirtualImageHandler.h
ossimVirtualImageTiffWriter.h
ossimVirtualImageWriter.h
ossimVirtualOverviewBuilder.h
These classes are used to build and read frame-based images,
i.e. made up of lots of smaller images like RPF. The multi-res structure is
similar to super kml used in Google Earth, but so far the individual frames are
geotiff. I’ll be adding in PNG support soon. The writer classes can do
partial rebuilds of the overviews, i.e. you can specify localized areas to
rebuild and leave the rest alone. This is exposed so far in the img2rr utility
via the new –f option, where you can specify individual RPF frame images
that might have been added or changed. I also added a –list-frames option
to print out all the individual frames names of an RPF, to help in identifying
frames by their entry, row, and col location in the RPF.
I updated the ossim\imaging\makefile.vc for these new files,
but not the projects/vs/ossim/ossim.vcproj because we're using VS 2005 instead
of 2008. VS 2005 doesn’t seem to handle the VS 2008 vcproj and sln files.
3. Changes to gdal_plugin (and ossim core) for
correcting some image positioning problems we were experiencing over the last
year and a half with EarthWhere.
4. Optional “Supplementary path” location for
storing the output of orthoigen.
Regards,
Eric Hirschorn @ SPADAC
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