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Python Geospatial Development - Second Edition by Erik Westra

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Converting and standardizing units of geometry and distance

Imagine that you have two points on the Earth's surface, with a straight line drawn between them:

Converting and standardizing units of geometry and distance

Each of these points can be described as a coordinate using some arbitrary coordinate system (for example, using latitude and longitude values), while the length of the straight line could be described as the "distance" between the two points.

Note

Of course, because the Earth's surface is not flat, we aren't really dealing with straight lines at all. Rather, we are calculating geodetic or Great Circle distances across the surface of the Earth.

Given any two coordinates, it is possible to calculate ...

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