A basic Open-source Carte internationale du Monde au Millionième nomenclature encoder.
Project description
Pymil is a simple Carte internationale du Monde au Millionième nomenclature coder. You might find it useful for searching maps for a specific coordinate pair. Typical usage would be something like:
#!/usr/bin/env python import pymil map = pymil.code(-11, -61) #Currently uses only decimal degrees; map["100k"] #Returns a list containing the code elements for the 1:100k map that contains the area. print map #Returns the code for 1:25k by default, in a string
CIM
The CIM uses the geographic coordinate system as background for the Earth separation, each individual chart receives a code that is composed by two letters and a number. The two letters represent respectively the hemisphere (north or south) and a interval of 4° in Earth’s latitude, which follow the alphabetical order starting from the Equator and increasing to the poles. The number represents a interval of 6° in longitude, marked with numbers and starting in the 180° meridian.
The letters that follow this are subdivisions of the basic millionth chart and indicates charts in scales 1 to 500,000, 250,000, 100,000, 50,000 and 25,000. The letter/number used in each part of the code deppends on the relative position of the chart to its smaller scale counterpar.
TODO
Make better docs.
Extend functionality, maybe letting you use UTM and whatsoever. DMS would be nice and easy, also.
Thanks
Luis Urtiga for the CIM nomenclature explanation.
