Library enables boolean operations on 2D polygons, providing union, intersection, difference, and XOR functionalities. Optimizes vector paths for efficient processing and space-saving.
This is a Kotlin Multiplatform port of polybool-java / polybooljs.
For instructions on how to use polybool-kotlin, please see the original project's README as well as the unit tests.
PolyBool is a library for performing boolean operations on 2D polygons - union, intersection, difference, and XOR.
I use it personally to optimize vector paths of Oxygen Not Included maps. By efficiently combining and simplifying complex shapes, it helps reduce map complexity and save space, making the data easier to work with and more efficient for further processing.
It's available on Maven Central.
implementation("de.stefan-oltmann:polybool-kotlin:0.1.1")
The code is functional, though not especially elegant.
It was largely produced using IntelliJ IDEA’s conversion tool, followed by significant manual cleanup. There is still work to do. Handling of nullable types, in particular, remains incomplete.
Currently, the only unit test, PolyBoolTest, acts as a regression check against the original polybool-java library.
For validation, 10k maps from the game Oxygen Not Included are used, and they convert identically to how they do with the original polybool-java library.
Contributions to polybool-kotlin are welcome! If you encounter any issues, have suggestions for improvements, or would like to contribute new features, please feel free to submit a pull request.
This project is licensed under the same license as polybool-java & polybooljs, which is the MIT license.
See the LICENSE file for more information.
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