+ update os.system() call of gdal2isce_xml.py with the python function call, in stripmapStack/topo.py and applications/downsampleDEM.py
+ break the long lines in downsampleDEM.py for easy reading
move the funcationality code from main() to a new function gdal2isce_xml() so that it can be called in a python way in other scripts, instead of using os.system().
+ dem.py: replace filename in xml file with abspath after geoid to ellipsoid correction
+ update README.md files in contrib/stack/*Stack, as fixImageXml.py is not needed anymore
+ fixImageXml: use native argparse mutually exclusive group for --full/--base options to replace checking with own code
ISCE_HOME was only used to get the location of the default logging config.
Lots of scripts were using boilerplate to set up this config, so I added
an `isce.logging` helper module which is the same as builtin python logging
but already has the configuration defaults set up for isce.
ISCE_HOME setup is retained in the toplevel `__init__.py`
but can now be removed without affecting functionality.
This commit adds experimental CMake build support for ISCE2.
The only changes involved should be adding CMakeLists.txt files.
All current source files, headers, and other functionality, including
the existing SCons build system, should be unaffected.
Some functionality is still a work-in-progress.
These should all be marked as TODO in the CMakeLists.txt files.
`grep TODO **.txt`
Please read CMakeLists.txt and .cmake/*.cmake for more info.