Compute an extent-aware figure size and marker size for area mapping plots.

Parameters¶

area_by_name: dict

Mapping from area names to area geometries. Geometries that expose p_min() and p_max() are used to derive plot extent.

n_areas: int

Number of legend entries (mapped areas) used to scale vertical space for readable legends.

Returns¶

figsize: tuple of float

Figure size as (width, height) in inches.

scatter_size: float

Scatter marker size passed to matplotlib s.