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Does Mollweide projection preserve shape?
The Mollweide projection is an equal-area map projection. It preserves the size of figures, but heavily distorts the shapes when getting nearer to the edge of the map. Mollweide maps are especially used for global maps where its equal-area property helps to display global distributions.
Is Mollweide equal-area?
Mollweide is an equal-area (equivalent) projection. Shapes, directions, angles, and distances are generally distorted.
What is the Mollweide projection good for?
The Mollweide projection is an equal-area, pseudocylindrical map projection generally used for global maps of the world or night sky. The projection trades accuracy of angle and shape for accuracy of proportions in area, and as such is used where that property is needed, such as maps depicting global distributions.
Does North Point straight up when you are looking at the Mollweide projection?
The main reasons for this are: 1 – North is always straight up, and 2 – at any point, the scale is always the same in every direction, and this makes the shapes of small areas look correct. But the Mercator projection has terrible trouble with the scale getting larger as you move away from the equator.
What is the best map projection?
We found that the best previously known flat map projection for the globe is the Winkel tripel used by the National Geographic Society, with an error score of 4.563. It has straight pole lines top and bottom with bulging left and right margins marking its 180 degree boundary cut in the middle of the Pacific.
How do I choose a good map projection?
When you choose a projection, the first thing to consider is the purpose of your map. For general reference and atlas maps, you usually want to balance shape and area distortion. If your map has a specific purpose, you may need to preserve a certain spatial property—most commonly shape or area—to achieve that purpose.
What is the Robinson projection most useful for?
The Robinson projection is unique. Its primary purpose is to create visually appealing maps of the entire world. It is a compromise projection; it does not eliminate any type of distortion, but it keeps the levels of all types of distortion relatively low over most of the map.