esda.shape.boundary_amplitude¶

esda.shape.boundary_amplitude(collection)[source]¶

The boundary amplitude (adapted from Wang & Huang (2012)) is the length of the boundary of the convex hull divided by the length of the boundary of the original shape.

Notes

This is inverted from Wang & Huang (2012) in order to provide a value between zero and one, like many of the other ideal shape-based indices.