Functions have been added to the :ref:`beta-plugin` to support interpolating a hazard intensity
based on the three closest matches in a nearest-neighbour look-up. For a worked NetCDF example
that interpolates temperature readings, refer to :ref:`triangulation`. This feature consists of:
- A new `sample_n_closest` function that returns the _N_ nearest samples from a coverage for a given
point, ordered by closest-first. (GL#1738)
- A new `triangulate` function that takes the three closest sampled values and uses barycentric interpolation
to calculate a single hazard intensity. In other words, the three closest values form a triangle
and are weighted based on how close the element-at-risk is to each point in the triangle. (GL#1739)
