# Bindings
The proj bindings are based on the crate [proj-sys](https://github.com/georust/proj/tree/main/proj-sys), which is used by the crate [proj](https://github.com/georust/proj).
However, it does not support full 3D projections yet (see: [issue #150](https://github.com/georust/proj/issues/150) and [pull request #176](https://github.com/georust/proj/pull/176)).
A fork with full 3D coordinate projection support was developed for the [tyler](https://github.com/3DGI/tyler) crate.
The file [proj.rs](proj.rs) is a copy of the tyler's crate [proj](https://github.com/3DGI/tyler/blob/master/src/proj.rs) bindings as a temporary solution.
It was extended to convert arrays of 3D coordinate projections.