Editing Talk:977: Map Projections

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I have a Plate Carrée hanging on my wall myself. Never failed me yet. '''[[User:Davidy22|<span title="I want you."><u><font color="purple" size="2px">David</font><font color="green" size="3px">y</font></u><sup><font color="indigo" size="1px">22</font></sup></span>]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 07:05, 2 February 2013 (UTC)

I like the Azimuthal Equidistant (equatorial aspect) the best. - not Pennpenn. [[Special:Contributions/108.162.221.43|108.162.221.43]] 01:15, 17 December 2015 (UTC)

You can explore and compare different map projections and their distortions (using Tissot’s indicatrix and triangulation of sphere) in an interactive blog post '''[http://mjmdavis.com/showing/2017/05/16/how-to-read-maps.html The problem with maps]''' by Michael Davis --[[User:JakubNarebski|JakubNarebski]] ([[User talk:JakubNarebski|talk]]) 14:58, 26 May 2017 (UTC)

Go check out that site carefully though most of the data is accurate, some of the media is not, for example the two side by side Google maps satellite images of cars and the text saying how a map projection changes the apparent size of the cars. Well if you open up both links you will see they are at different zoom levels, one at a scale of 50 feet per unit and the other at 100 feet so yes being twice the zoom the cars are going to appear larger then the image right next to it. [[Special:Contributions/162.158.62.231|162.158.62.231]] 12:04, 23 August 2017 (UTC)

Btw, this comic is given in ''[https://www.youtube.com/watch?v=2lR7s1Y6Zig What Does Earth Look Like?]'' of Vsause where these projections are discussed. --[[User:Ата|<span style="color:SteelBlue">Ата</span>]]&nbsp;<sup>[[User talk:Ата|<span style="color:#80A0FF">(talk)</span>]]</sup> 10:38, 3 September 2017 (UTC)

;Dymaxion
Dymaxion is clearly the best. There's nothing like a map made out of an unfolded d20. [[User:Alpha|Alpha]] ([[User talk:Alpha|talk]]) 19:43, 23 February 2013 (UTC)

: Makes you wonder what if a dodecahedron had been used instead of an icosahedron. --[[User:Quicksilver|Quicksilver]] ([[User talk:Quicksilver|talk]]) 18:02, 17 August 2013 (UTC)

::Here you go: http://www.progonos.com/furuti/MapProj/Normal/ProjPoly/Foldout/Dodecahedron/dodecahedron.html - [[User:Frankie|Frankie]] ([[User talk:Frankie|talk]]) 16:40, 23 July 2015 (UTC)

::Oh noes, Progonos map site has shut down. Alternatives: http://www.csiss.org/map-projections/Miscellaneous.html and https://lynceans.org/all-posts/polyhedral-projections-improve-the-accurately-of-mapping-the-earth-on-a-2d-surface/ - [[User:Frankie|Frankie]] ([[User talk:Frankie|talk]]) 23:14, 11 July 2019 (UTC)

;Quincunx
Peirce Quincuncial has 4 non-conformal points, but not the 4 corners, which are the south pole, but instead are the 4 midpoints of the sides.  These are on the equator and seem to be 90 degrees apart.--DrMath 06:30, 30 August 2013 (UTC)
: I love Peirce Quincuncial, yet I slept throughout that "Inception". [[Special:Contributions/141.101.99.228|141.101.99.228]] 11:36, 27 January 2014 (UTC)
: I'm surprised nobody thought of "''really'' looking at your hands" as a hint that person that likes this projection is under influence of LSD or similar drug. As this surely is a thing that you do. (and you'll think of it next time you smoke your joint - inception!) --[[Special:Contributions/108.162.254.137|108.162.254.137]] 17:29, 7 December 2014 (UTC)

Plus it has a picture of a man looking at his hand and a man looking at the man looking at his hand.[[User:Weatherlawyer| I used Google News BEFORE it was clickbait]] ([[User talk:Weatherlawyer|talk]]) 14:39, 22 January 2015 (UTC)

xkcd 1051's title text - "meta lucid dreaming". I really got excited that there was an article about and ironically, it leads to meta and lucid dreaming separately. [[Special:Contributions/173.245.55.67|173.245.55.67]] 21:23, 25 March 2014 (UTC)BK201

The common video game trope of "the far east of the world is connected to the far west, and the far north likewise to the far south" is popularly resolved by saying that those game worlds are toroidal shapes. (For a particular reference, I am thinking of the SNES and PSX era Final Fantasy games (4-9.)) But sometime in the last year, I got the idea that you could also resolve that geographical conflict (and claim they are spherical) by the logic that the "world map" you see in those games (where they have one) is a Peirce Qunincuncial map. Is my logic sound? [[User:Boct1584|Boct1584]] ([[User talk:Boct1584|talk]]) 15:31, 28 March 2015 (UTC)

The explanation for the Peirce Quincuncial seems to miss the fact that Randall is implying that anyone who likes this map is most likely high. Getting lost in deep thought over things like your hands, or sitting in a dark theater for 6 hours to wrap your head around Inception...these are all very stereotypical "has smoke a lot of marijuana" behaviors. {{unsigned ip|108.162.216.21}}

The Quincuncial map is one of few maps that can tile infinite plane such that any 2 arbitrarily close points on the plane correspond to 2 arbitrarily close points on globe and vice versa.

;Waterman

In actual fact, the Waterman butterfly map used a truncated octahedron based upon the mathematics of close packing of spheres and is not at all based upon any of CaHill's work/math. 
-- steve waterman {{unsigned ip|65.92.20.61}}
:Perhaps the explanation should mention that Waterman himself signed up at forum.xkcd.com and vigorously denied that his map has anything to do with Cahill. At the time, it was unclear whether the account was really Waterman, or just a troll trying to make him look bad. - [[User:Frankie|Frankie]] ([[User talk:Frankie|talk]]) 21:39, 25 March 2014 (UTC)

;Kavrayskiy VII
Kavrayskiy is the best projection, despite being so far out of the mainstream that no-one west of Ukraine has seen one for the past 20 years. {{unsigned ip|173.245.54.64}}
:Wow, I looked into it and it really seems like an excellent projection. It's been a while since I've looked at projections but I think it's my new favourite as it has everything that I've been looking for in a projection. It's a more accurate (in extremes) and more pleasing Robinson projection that still has a reasonable amount cut off the top. Also, the indicatrix for it is very simple, as is the formula, and simple things please simple minds (like mine, apparently) -- without taking it to an extreme like the equirectangular projection does. I swear I've come across it before, but then again I grew up in a country which wasn't far from the Eastern Bloc. [[Special:Contributions/141.101.98.214|141.101.98.214]] 14:51, 5 November 2014 (UTC)

;Sphere
To be fair, what is drawn is an orthographic azimuthal projection.--[[Special:Contributions/108.162.216.153|108.162.216.153]] 18:59, 14 December 2014 (UTC)

GLOBES ARE THE BEST although my enormous Winkel Tripel hasn't done too bad. {{unsigned ip|108.162.219.9}}

Airline food is never microwaved, and is chilled rather than frozen. Also the problems aren't limited to storage and re-heating, there are technical considerations with low air pressure, dehydrated air etc. and concerns over strong smells. I edited the relevant section. [[User:AmbroseChapel|AmbroseChapel]] ([[User talk:AmbroseChapel|talk]]) 07:00, 11 September 2017 (UTC)

"Here is what it says about you" is a common phrase in online personality quizzes, pages and other things. {{unsigned ip|162.158.167.234}}

Randall Hates New Zealand. [[User:Koro Neil|Koro Neil]] ([[User talk:Koro Neil|talk]]) 03:40, 7 January 2019 (UTC)

Isn't the "skeleton inside" thing a reference to Ray Bradbury's "The Skeleton" [[User:Shadowsapex|Shadowsapex]] ([[User talk:Shadowsapex|talk]]) 08:32, 27 January 2019 (UTC)

== Wording disagreement ==

Loodog and I disagree about the wording of the Peters map explanation.

The previous version of the text (written by LCarsos in 2012):
: ''Anyone who loves such a politically charged map that has become popular by way of marketing stunts, Randall would rather not have anything to do with.''
Loodog's version of the text:
: ''The implication is that the fans of this map are pompously concerned with social justice, and willing either to lie or convey marketing mistruths to promote that cause.''

I believe Loodog's wording is excessively non-neutral, and the old wording should be restored. - [[User:Frankie|Frankie]] ([[User talk:Frankie|talk]]) 19:29, 20 November 2019 (UTC)

: FWIW, I disagree that Peters fans are "pompously concerned with social justice". IMO, they are just assholes who enjoy using the terminology of social justice as their cudgel. People who genuinely care about social justice don't use Peters.

: Amnesty International, Human Rights Watch, and the International Organization for Migration are three of the world's largest social justice organizations. Each of them has been described as "pompous" by detractors. <ref>https://www.google.com/search?q=%22amnesty+international%22+pompous</ref> <ref>https://www.google.com/search?q=%22human+rights+watch%22+pompous</ref> <ref>https://www.google.com/search?q=IOM+~migration+pompous</ref> None of them use Peters map projection. <ref>https://www.google.com/search?q=world+map+site:amnesty.org&tbm=isch</ref> <ref>https://www.google.com/search?q=world+map+site:hrw.org&tbm=isch</ref> <ref>https://www.google.com/search?q=world+map+site:iom.int&tbm=isch</ref> AI & HRW use a mix of Hobo-Dyer, Equirectangular, and probably Mercator. IOM uses something rounded (probably Robinson or W-T), Equirectangular, and Mercator. - [[User:Frankie|Frankie]] ([[User talk:Frankie|talk]]) 19:34, 20 November 2019 (UTC)
::I'm inclined to agree; certainly we should be careful about calling people "pompous" in the article voice. I went back to the older wording but added "...and false claims..." after marketing stunts, which seems to have been the main thing that the person who changed it objected to and which can be stated more neutrally like that. --[[User:Aquillion|Aquillion]] ([[User talk:Aquillion|talk]]) 07:13, 9 January 2023 (UTC)

== Hemispheric Interrupted Mollweide ==

Still disappointed that Randall didn't include the '''BEST''' projection: Interrupted Mollweide Hemispheres. It combines key aspects from the clean math of Equirectangular, the values of Hobo-Dyer, the circularity of Van Der Grinten, the flattening of Homolosine, and the hipness of Winkel Tripel. - [[User:Frankie|Frankie]] ([[User talk:Frankie|talk]]) 15:09, 31 October 2022 (UTC)
:Maybe next time [[User:While False|While False]] ([[User:While False/explain xkcd museum|'''museum''']] | [[User talk:While False|talk]] | [[special:Contributions/While_False|contributions]] | [[special:Log/While_False|logs]] | [[Special:UserRights/While_False|rights]]) 19:00, 31 October 2022 (UTC)

i like peirce quincuncial and plate carree (bonus points the fact it's the oldest one). mercator is a bit meh, but let's give it credit for being one of the first projections (in fact it is the second oldest projection). gall-peters is the ugliest projection i've seen, and hobo-dyer is second ugliest. the butterfly one is also good but a bit weird, and the ichosaedron one that i forgot the name is... weird. like, wtf is that, it doesn't even look like a map, idk, where's europe there [[User:An user who has no account yet|An user who has no account yet]] ([[User talk:An user who has no account yet|talk]]) 18:31, 6 September 2023 (UTC)
:For the "icosahedron one", you mean the Dymaxion? In which case, Europe is in the topmost trapezoid (left, as opposed to the two triangles top-right). See Africa (Madagascar crossing an edge) in one corner, see the 'squiggle' of the Med and then Europe (rotated maybe 150 degrees over) crammed in the right of the extrusion. [[Special:Contributions/172.71.242.76|172.71.242.76]] 21:47, 6 September 2023 (UTC)

It should maybe be explained that the concept of determining what someone's personality is like by what map they prefer is itself ''{{w|Social projection|projection}}'' {{unsigned|Mesoseven|05:20, 3 January 2024}}
:Might be worth disambiguating/adding to the {{w|projection (psychology)}} link in the '''Title Text''' section. I mean, they're not totally the same thing, but could be dealt with together with the right wording. (PS, I shuffled/reformatted your contribution. You did 'sign', but not ''sign'', and you can check the layout of the handy wikilink template we use here if you read how I've made your link; and my own without any replacement text. Welcome to the wiki, and if you have any questions...) [[Special:Contributions/172.70.90.173|172.70.90.173]] 07:30, 3 January 2024 (UTC)
@@ Line 39: / Line 39: @@
 -- steve waterman {{unsigned ip|65.92.20.61}}
 :Perhaps the explanation should mention that Waterman himself signed up at forum.xkcd.com and vigorously denied that his map has anything to do with Cahill. At the time, it was unclear whether the account was really Waterman, or just a troll trying to make him look bad. - [[User:Frankie|Frankie]] ([[User talk:Frankie|talk]]) 21:39, 25 March 2014 (UTC)
-What makes the Waterman butterfly map better than the Goode Homolosine map? The downsides of the Goode Homolosine map listed can both apply to the Waterman map: the oceans are all cut up in both of them, and while Greenland is safe in the Waterman butterfly, the edge of Asia gets sent over to North America’s wing. [[User:Tsuchinoko|tsuchinoko real]] ([[User talk:Tsuchinoko|talk]]) 02:57, 29 January 2024 (UTC)
 ;Kavrayskiy VII
@@ Line 83: / Line 81: @@
 :For the "icosahedron one", you mean the Dymaxion? In which case, Europe is in the topmost trapezoid (left, as opposed to the two triangles top-right). See Africa (Madagascar crossing an edge) in one corner, see the 'squiggle' of the Med and then Europe (rotated maybe 150 degrees over) crammed in the right of the extrusion. [[Special:Contributions/172.71.242.76|172.71.242.76]] 21:47, 6 September 2023 (UTC)
-== Projection ==
 It should maybe be explained that the concept of determining what someone's personality is like by what map they prefer is itself ''{{w|Social projection|projection}}'' {{unsigned|Mesoseven|05:20, 3 January 2024}}
 :Might be worth disambiguating/adding to the {{w|projection (psychology)}} link in the '''Title Text''' section. I mean, they're not totally the same thing, but could be dealt with together with the right wording. (PS, I shuffled/reformatted your contribution. You did 'sign', but not ''sign'', and you can check the layout of the handy wikilink template we use here if you read how I've made your link; and my own without any replacement text. Welcome to the wiki, and if you have any questions...) [[Special:Contributions/172.70.90.173|172.70.90.173]] 07:30, 3 January 2024 (UTC)
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