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Show HN: Interactively explore different map projections

109 pointsby mjmdavisabout 8 years ago

5 comments

m1elabout 8 years ago
There&#x27;s a few map projections I really like that don&#x27;t have most of these problems: HELAPIx[0] and Dymaxion map[1].<p>HELAPIx is designed to have pixels of the same area, and Dymaxion is designed to have the least distortion.<p>[0]: <a href="http:&#x2F;&#x2F;healpix.jpl.nasa.gov&#x2F;" rel="nofollow">http:&#x2F;&#x2F;healpix.jpl.nasa.gov&#x2F;</a><p>[1]: <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Dymaxion_map" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Dymaxion_map</a>
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desdivabout 8 years ago
Are there any online maps that <i>aren&#x27;t</i> Web Mercator? Google Maps, Here.com, OpenStreetMap, Bing Maps, MapQuest are all Mercator-only, with no easy option to switch.
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MichailPabout 8 years ago
Is there some nice explanation of how the projections between various EPSG codes work? I converted one projection into another but in QGIS or in python pyproj, but except for the very basics I have no idea what is going on.
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joernabout 8 years ago
nice, one of the best, interactive visualizations of the problems of mercator maps i&#x27;ve seen
TremendousJudgeabout 8 years ago
typo:<p>&gt;To remedy the horizontal stretching, the Mercator Projection stretches the globe out in the vertical direction an equal amount to the stretching in the vertical direction.
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