The great-circle tag has no wiki summary.
14
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3answers
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How do I find the distance between two coordinates in an ellipsoid?
Lets say I have two sets of latitude and longitude. How do I find the distance between the two locations if I assume the earth is a perfect ellipsoid (with an eccentricity of 0.0167)?
7
votes
2answers
1k views
Distance between lat/long points
I am attempting to calculate the distance between two latitude/longitude points. I have a piece of code that mostly works that I yanked from this post but I do not really understand how it works.
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10
votes
5answers
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What tools in Python are available for doing great circle distance + line creation?
I need to use Python to create a great circle distance -- both a number, and preferably some kind of 'curve' that I can use to draw in a client-side map. I don't care about the format of the curve -- ...
12
votes
4answers
173 views
Are long lines in shapefiles to be considered geodesics or straight lines in the 2D latlong space?
Is there a definition on how lines connect vertices in the shapefile format?
In the simplest case, imagine a line with only 2 points, from 40,-118 to 40,-112 - that's somewhere random in the US - ...
3
votes
2answers
419 views
How do I find the points of intersection between a small circle and a great circle?
I only actually need to intersect a great circle arc i.e. the shortest path between two points, with a given small circle.
I found this tutorial for intersecting two great circle arcs, but ...
