The code in this repository is a star/planets engine in an Arduino library.

The ready-made Arduino library zip file can be found by clicking on Releases.

If you want to build the library from source, you can clone the code into a folder onto your Linux machine, then go into the starmap folder, and type:

chmod 755 make_libraries.py
./make_libraries.py

The output will be two zip files, one folder up from the starmap folder. The zip file titled starmap_library-1.0.0.zip will be the bundled library that you can add into the Arduino development environment (using Sketch->Include Library->Add .ZIP file).

The other zip file that will be generated, called starmap_lib.zip is useful for CMake projects for non-Arduino platforms, such as Pi Pico C/C++ SDK. It can be ignored if you're using Arduino.

If you wish to test the code on Linux, prior to uploading to any microcontroller, then you can do that by typing:

cd starmap/examples/StarmapLinuxTest
mkdir -p build
cd build
cmake ..
make

By doing that, a starmap Linux executable will be built in the build folder. Note that you may need to install libpng on your Linux machine beforehand (on Ubuntu, you can type sudo apt install libpng). You can run the starmap executable by typing:

./starmap

It will generate a star chart PNG file (called out.png) which can be inspected.

Note: This code uses content from https://www.fourmilab.ch/homeplanet/ (public domain code).

See the screenshot here: