New answers tagged geography
Not sure if you problem has a name (the similar problem has one) but you find this problem if one needs to know a meeting point of several people. And e.g. the higher percentage means more people at this point. I would solve this with GraphHopper running multiple Dijkstras and starting at the specified locations and when all search areas overlap you have ...
Why don't you just do: SELECT ST_GeomFromGeoJSON(geojsongoeshere)::geography;
It seems that we are mostly agreed that the question is open to interpretation. I'd like to bring up what I believe to be the real issue: It is not a practical question to ask -- it is a philosophical one. It should be asked in quizzes, for light entertainment. Both the question and answer ought to depend on how "tricky" is the quiz -- or for whom it is ...
North, east, south and west are directions relative to “something”. The two things you are taking about are: easternmost point in a (mulitpart) polygon: easternmost point in the US a coordinate system to measure geographic latitude and longitude: measured angle in direction (east/west) relativ to Greenwich If you do not mix these two things, I can't see ...
North, east, south and west are directions so the eastern most point depends on the observers location and therefore I don't think you can define an absolute eastern most point since it will change depending on the observer
The easternmost point in the US is technically a point in Alaska's Aleutian Islands, since it lies just west of the International Date Line. Agreed that the Eastern most point of a landmass should be determined by sweeping across its latitude in an easterly direction (as you suggest) but the question asks about the United States, not the North American ...
The most Eastern point is Maine, since you would have to travel towards the (North)West in order to get to Alaska.
Why not let the International Date Line separate east from west? Siberia's Chukotka Peninsula and the Aleutians both cross the 180th meridians but not the IDL. It makes no more sense to call the furthest Aleutians the U.S.' easternmost point than to call Little Diomede Island Russia's westernmost.
The answer will be very dependent on the resolution of your data and a small country does not necessarily have a small number of sides (especially if its borders are defined by a twisty river, say). So many small countries/states will have very many more sides than some large ones. Any state/country where a border is defined by a natural feature will ...
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