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Cartography · Problem type
What a projection keeps
Use this for “The Mollweide map keeps every country’s area true but bends shapes near its edges. Is it conformal, equal-area, equidistant or a compromise?”
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What does the projection keep?
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Assumptions
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No flat map keeps shapes, areas and distances all at once; each projection chooses what to keep.
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The dots are Tissot circles: equal circles on the globe, drawn as the map draws them.
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A conformal map keeps the dots round; an equal-area map keeps their areas equal.
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