Crate polylabel

This crate provides a Rust implementation of the Polylabel algorithm for finding the optimum position of a polygon label.

ffi bindings are provided: enable the ffi and headers features when building the crate.

Modules

errors

Errors that can occur when determining an optimum label position

Structs

Array

Wrapper for a void pointer to a sequence of 2-element arrays representing points, and the sequence length. Used for FFI.

Position

FFI struct for returned optimum Polygon label position

WrapperArray

Wrapper for a void pointer to a sequence of Arrays, and the sequence length. Used for FFI.

Functions

polylabel

Calculate a Polygon’s ideal label position by calculating its ✨pole of inaccessibility✨

polylabel_ffi

FFI access to the polylabel function