Being a complex science, geodetics is often overlooked by GIS practitioners when creating a map. ![]() Geodesy is the study and mathematics behind the modeling of Earth. Luckily, Global Mapper and Geographic Calculator from Blue Marble Geographics can help you manage the geodetic characteristics and projection for any GIS or mapping project. Hopefully, the fact that the Earth is not flat is not news to you, but it is an important fact to consider when mapping and modeling any area on Earth. Earth is a geoid, an irregular and lumpy, roughly ellipsoidal shape that is difficult to map and model in its entirety. Globes portray the Earth in a spherical model, but in reality, Earth is not exactly a sphere either. ![]() A commonly accepted fact is that the Earth is not flat.
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