portolan 1.0.1

Convert between compass points and degrees. It’s a super tiny library with no dependencies.

pip install portolan

Methods

Just a few: point, traditional, degrees, middle, range.

Examples

Convert from abbreviations or a decimal degree to the compass point:

import portolan

portolan.point(abbr='nnw')
# 'north-northwest'

portolan.point(degree=275.1)
# 'west'

Convert to traditional names of the Mediterranean basin:

portolan.traditional(degree=12.6)
# 'Quarto di Tramontana verso Greco'

portolan.traditional(abbr='NEbE')
# 'Quarto di Greco verso Levante'

Convert between degrees and abbrevations:

portolan.abbr(145.0)
# 'SEbS'

portolan.middle('SEbS')
# 146.25

portolan.range('SEbS')
# (140.625, 151.875)

# Remember that North spans the origin
portolan.range('n')
# (354.375, 5.625)

# the degrees method returns the minimum, middle, and maximum of a compass point
portolan.degrees('SEbS')
# (140.625, 146.25, 151.875)