Indicates questions asking about the use and meaning of specific technical words in GIS.

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23
votes
2answers
1k views

Why do we use the terms “longitude” and “latitude” for a spherical body?

To specify a geographic coordinate we use the terms “longitude” and “latitude”. Far as I know, these terms derive from the Latin latitudo (= breadth) and longitudo (= length). In German we use the ...
4
votes
3answers
410 views

Difference between lon and lng [closed]

When browsing the web and documentation I see the abbreviation lon and lng used for the longitude part of geometry. I was wondering if there is any difference between lng and lon.
7
votes
3answers
223 views

What's a term for Sea Level Distance which is usable by novice users?

I've been using the term Sea Level Distance to describe the total length of a line string where I ignore the elevation and just calculate the distance from point to point along the ellipsoid and sum ...
4
votes
1answer
414 views

Correct use of the terms geographic, path, and Euclidean distance

I often use the terms geographic and Euclidean distance interchangeably when referring to the length of the shortest straight-line distance between two points on a map. Is this correct? I use the ...