Rationale
Representing the world on a 2D plane like maps is a difficult task as
Representing a sphere on a 2D plane is a difficult task because the
circumference does not easily relate to the enclosed area. A volume
does not have a circumference and needs to be cut somewhere to unwrap
the surface to a 2D plane.
Unwrapping volumes with flat surfaces is easy as the surface can be converted
to a flat plane without stretching (just like flattening cardboard boxes when
putting out trash.)
Volumes that are not flat are not as easy to flatten as they need to be stretched
somewhere in the process.
There are a lot of lists with nice figures showing the difference between cartographical projections. What’s still lacking is a tool to intuitively compare the projections to see the differences in reproduction of the world. Some projections maintain distances between points while others favour angle intuitive view of the world as we know it.
Interactive projections
Select a projection on the right of the globe and observe the change in
projection. Some projections can be reoriented to change the viewing angle.
The dots are generated uniform on the globe, sparsely dotted areas are
misrepresented by the projection and are shown larger than they are. Greenland
is a well known example of size misrepresentation in maps. The ‘ideal’
projection has equal spacing as the areas are represented equally.
Notice the difference between ‘equal area’ and ‘equidistant’ projections.
This project benefits hugely from wider monitors, mobile screens don’t do it justice! (check out dark/light mode!)
Some explanation
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references
[ https://en.wikipedia.org/wiki/List_of_map_projections ] [ https://docs1.w3cub.com/d3~4/d3-geo-projection/#geoSinuMollweide ] [ https://blog.map-projections.net/spilhaus-projections-a-quintet-of-world-ocean-maps ] [ https://courses.ems.psu.edu/geog486/node/856 ] [ https://storymaps.arcgis.com/stories/756bcae18d304a1eac140f19f4d5cb3d ]