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DGGRID Unix Make Instructions

These instructions assume you are on a Unix/Linux system, though with cmake they should be broadly compatible.

Acquire the Code

Acquire the code with:

git clone https://github.com/sahrk/DGGRID.git

Building DGGRID

Build the application dggrid by executing:

cd DGGRID                            # enter the cloned repo
mkdir build                          # Make a directory to compile into
cd build                             # Switch into build directory
cmake -DCMAKE_BUILD_TYPE=Release ..  # Prepare to compile
make                                 # Build code.
make install                         # Optionally install on your machine

cmake will automatically detect where libraries are installed on your machine and include them appropriately.

By default cmake will search for GDAL and link DGGRID with it if found. If GDAL is present on your system and you want to force a build of DGGRID without GDAL, call cmake with -DWITH_GDAL=OFF.

By default cmake will use the shapelib library included with the source code. To build using an external system-provided version of shapelib execute cmake with -DWITH_EXT_SHAPELIB=ON. To specify a specific directory path to search for shapelib add -DSHAPELIB_ROOT_DIR=/...

You can also build DGGRID with extra debugging info. Doing this requires emptying your build/ directory first or making a new build_debug/ directory.

# Optimizations + Debugging info
cmake -DCMAKE_BUILD_TYPE=RelWithDebInfo ..
# Optionally, prepare a debugging build with limited or no optimizations
cmake -DCMAKE_BUILD_TYPE=Debug ..

Upon Success

If/when the make is successful there will be a command line executable file dggrid in the directory DGGRID/build/src/apps/dggrid. This is the DGGRID program. Assuming dggrid is in your command search path you may execute it with:

dggrid someMetaFileName.meta

and/or with either of the informational flags:

dggrid -v
dggrid -h

See the DGGRID documentation and examples for details of metafile contents.

Building also produces the sample application DGGRID/build/src/apps/appex/appex, which is intended as a simple demonstration of using calls to the dglib library to manipulate DGG cells in source code.

Examples

The directory DGGRID/examples contains a set of example DGGRID runs with pre-computed output. You can run these examples and automatically compare your output to the pre-computed output by going into DGGRID/examples and executing:

./doexamples.sh

See the manual for more details on the parameters contained in the example metafiles.

Documentation

If you have doxygen installed, the source code documentation can be built in PDF and HTML formats using

make docs

and can be found at DGGRID/build/docs.