Aerial Berlin

The programs ab-download, ab-tile and ab-convert are a re-implementation of aeria-images.sh in C. They offer convenient ways of downloading, tiling and finally converting aerial imagery publically available of Berlin. While the programs are feature-complete (more or less), this is still a toy project and used as a learning exercise. Errors, Bugs and other forms of malfunctioning should be expected - even though all programs are compiled with runtime sanitizers.

Installation

Installing Dependencies

Aerial Berlin depends on libcurl, libgdal and libpng. Because aerial imagery of Berlin is distributed in the ECW file format, which is proprietary, you most likely need to re-compile GDAL with support for the ECW driver. To check if your installation of GDAL already supports reading ECW files, run the following command:

gdalinfo --formats | grep ECW

To re-compile GDAL, follow the instructions listed here. Note that one of the URLs does not work anymore, a fix is provided in this GitHub repo. However, all paths and filenames are handled as ASCII. Thus, support for multi-byte characters is not needed anyway. You can use any version of GDAL you want (and it's preferable to install a version newer than 2.2.2). GDAL 3.4 was the last major release using Makefiles, later releases switched to CMake which is configured differently.

In case your library/inculde paths are different, you may need to change them accordingly in the Makefile.

make release
sudo make install
make clean

Code Styling

The astyle formatting options can be found in .astyle. To reformat any C files, run the following command

astyle --project=.astyle --recursive "./*.c,*.h"