https://egsc.usgs.gov/isb//pubs/MapP...ojections.html
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That's wierd Hewson, it says it's useful for showing airline distances... Sounds practical in the modern day... Spooky huh?
It's actually the only map that has both true direction and equal distance. Sounds like a recipe for reality, eh?
You didn't read the discription? "Distances and directions to all places true only from center point of projection. Distances correct between points along straight lines through center. All other distances incorrect . Any straight line drawn through center point is on a great circle. Distortion of areas and shapes increases away from center point."
You conveniently left out important information, "Useful for showing airline distances from center point of projection."Quote:
Originally Posted by Humanfit
Interesting. Here is the whole thing so I don't misquote again.
Azimuthal Equidistant
Used by USGS in the National Atlas of the United States of America™ and for large-scale mapping of Micronesia. Useful for showing airline distances from center point of projection. Useful for seismic and radio work. Oblique aspect used for atlas maps of continents and world maps for radio and aviation use. Polar aspect used for world maps, maps of polar hemispheres, and United Nations emblem.
Distances and directions to all places true only from center point of projection. Distances correct between points along straight lines through center. All other distances incorrect . Any straight line drawn through center point is on a great circle. Distortion of areas and shapes increases away from center point.
Azimuthal—Mathematically projected on a plane tangent to any point on globe. Polar aspect is tangent only at pole.
There you go, and you notice of course the use of the word choices in the description?Quote:
Originally Posted by Humanfit
"Useful for showing airline distances from center point of projection."
"Distances and directions to all places true only from center point of projection. Distances correct between points along straight lines through center. All other distances incorrect . Any straight line drawn through center point is on a great circle. Distortion of areas and shapes increases away from center point."
But they are wrong, right?
I should underline the part about how any straight line drawn through the center point is on a great circle.
My argument isn't weather or not they are telling the truth about it, my point was that you made a snide comment about no one using a flat earth map. I showed they do. Officially. Now what they tell you how they use it and why, I don't claim to know.
this is awesome info , thanksQuote:
Originally Posted by Humanfit