#mapprojections — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #mapprojections, aggregated by home.social.
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#30DayMapChallenge Day 19: Projections 🍊🌍
Ever tried peeling an orange and laying it flat? It cracks apart, just like the Earth when we project it onto a map.
So today I made a world map out of orange peel, styled in a polar stereographic projection. Made in #QGIS with #NaturalEarth data.
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Of course, we cartographers will never stop sharing this clip from the West Wing on occasions such as these:
"Why are we changing maps?"
https://www.youtube.com/watch?v=eLqC3FNNOaI
#PetersProjection #GallPetersProjection #GallPeters #Mercator #MercatorProjection #MapProjections #maps #cartography #CorrectTheMap
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More about the #CorrectTheMap campaign is here: https://correctthemap.org/ and you can learn more about the #EqualEarthProjection here: https://equal-earth.com/equal-earth-projection.html
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Map projections in the news! And we cartographers are all relieved that it's not the Gall-Peters Projection again. The newer Equal Earth Projection is a much better alternative to Mercator.
Via Reuters: "African Union urges adoption of world map showing continent's true size"
#maps #cartography #Africa #Mercator #EqualEarth #EqualEarthProjection #MapProjections #AfricanUnion
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Map projections in the news! And we cartographers are all relieved that it's not the Gall-Peters Projection again. The newer Equal Earth Projection is a much better alternative to Mercator.
Via Reuters: "African Union urges adoption of world map showing continent's true size"
#maps #cartography #Africa #Mercator #EqualEarth #EqualEarthProjection #MapProjections #AfricanUnion
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Map projections in the news! And we cartographers are all relieved that it's not the Gall-Peters Projection again. The newer Equal Earth Projection is a much better alternative to Mercator.
Via Reuters: "African Union urges adoption of world map showing continent's true size"
#maps #cartography #Africa #Mercator #EqualEarth #EqualEarthProjection #MapProjections #AfricanUnion
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Map projections in the news! And we cartographers are all relieved that it's not the Gall-Peters Projection again. The newer Equal Earth Projection is a much better alternative to Mercator.
Via Reuters: "African Union urges adoption of world map showing continent's true size"
#maps #cartography #Africa #Mercator #EqualEarth #EqualEarthProjection #MapProjections #AfricanUnion
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Map projections in the news! And we cartographers are all relieved that it's not the Gall-Peters Projection again. The newer Equal Earth Projection is a much better alternative to Mercator.
Via Reuters: "African Union urges adoption of world map showing continent's true size"
#maps #cartography #Africa #Mercator #EqualEarth #EqualEarthProjection #MapProjections #AfricanUnion
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Kurzer SZ-Artikel über Kartenprojektionen, Vorteile, Nachteile und alte Gewohnheiten:
"Weltkarten verzerren Afrikas wahre Größe: Dagegen wehrt es sich jetzt" https://www.sueddeutsche.de/projekte/geschenk/einloesen?token=879b9a37-bb8d-4ee1-8649-0dcb4ae702dd
(Geschenk-Link) -
Kurzer SZ-Artikel über Kartenprojektionen, Vorteile, Nachteile und alte Gewohnheiten:
"Weltkarten verzerren Afrikas wahre Größe: Dagegen wehrt es sich jetzt" https://www.sueddeutsche.de/projekte/geschenk/einloesen?token=879b9a37-bb8d-4ee1-8649-0dcb4ae702dd
(Geschenk-Link) -
Kurzer SZ-Artikel über Kartenprojektionen, Vorteile, Nachteile und alte Gewohnheiten:
"Weltkarten verzerren Afrikas wahre Größe: Dagegen wehrt es sich jetzt" https://www.sueddeutsche.de/projekte/geschenk/einloesen?token=879b9a37-bb8d-4ee1-8649-0dcb4ae702dd
(Geschenk-Link) -
Kurzer SZ-Artikel über Kartenprojektionen, Vorteile, Nachteile und alte Gewohnheiten:
"Weltkarten verzerren Afrikas wahre Größe: Dagegen wehrt es sich jetzt" https://www.sueddeutsche.de/projekte/geschenk/einloesen?token=879b9a37-bb8d-4ee1-8649-0dcb4ae702dd
(Geschenk-Link) -
Kurzer SZ-Artikel über Kartenprojektionen, Vorteile, Nachteile und alte Gewohnheiten:
"Weltkarten verzerren Afrikas wahre Größe: Dagegen wehrt es sich jetzt" https://www.sueddeutsche.de/projekte/geschenk/einloesen?token=879b9a37-bb8d-4ee1-8649-0dcb4ae702dd
(Geschenk-Link) -
Mapping / Cartography – A Visualisation Example Of How Projections ‘Shape’ Your Data
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https://www.leventhalmap.org/digital-exhibitions/bending-lines/interactives/projection-face/ <-- dynamic views of different projections
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Here is one of my most useful (100yr old!) teaching aids - with a dynamic web page to 'match'!
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Text book figure, same man’s head drawn In four different projections; Charles H. Deetz, Elements of Map Projection With Applications to Map and Chart Construction (Washington: Government Printing Office, 1921)
#GIS #spatial #mapping #projection #projections #mapprojections #learning #education #teachingaids #cartography -
@cjmoorehead Somebody needs to ask #TimWalz his favorite map projection.
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I got 71/77 cards so I hope I can trade with others to complete the set. I know Daniel shared a sheet for trades but most of them there are far from the Philippines haha. Maybe at this year's FOSS4G conference or at future events? 😂
P.S. I've been brainstorming/thinking about something similar for the local #OpenMapping / #OpenGeospatial community in the Philippines. Shall we?
#TheProjectionCollection #MapProjections #Cartography #Maps #Geospatial #FOSS4G #GIS #TCG #CCG #Philippines
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The Impossible Map [video, 1947]
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https://www.nfb.ca/film/impossible_map/ <--link to video
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[still an excellent teaching aid, and who doesn’t like the idea of mangling a grapefruit with a rolling pin?! (turnips not so much…) ~wink~ ]
“Development in long-range travel and the growing importance of the Arctic and Antarctic regions make it necessary to understand how maps may be misleading. Experiments with a grapefruit illustrate the difficulty of presenting a true picture of the world on a flat surface and it is concluded that the globe is the most accurate way of representing the earth...”
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I also love this image from 1921 (!), still useful today, and when I used to teach a little it was part of my coursework… we are so visual…
Charles H. Deetz, Elements of Map Projection With Applications to Map and Chart Construction (Washington: Government Printing Office, 1921)
#GIS #spatial #mapping #map #mapprojections #geography #coordinates #film #video #education #training #onlinelearning
@thenfb -
An overview of Justin Kunimune's "danseiji", "elastic Earth", world map projections, a style of projection which allows the use of individual stretching of specified areas rather than one uniform formula for the whole globe.
The most interesting to me is "Danseiji IV", a projection that is inspired by Dymaxion but looks a bit more organic.
blog.map-projections.net/the-d…
Direct link to Kunimune's work:
kunimune.home.blog/2019/11/07/…#MapProjections
#danseiji #danseijiIV
#dymaxion #DymaxionProjection -
An overview of Justin Kunimune's "danseiji", "elastic Earth", world map projections, a style of projection which allows the use of individual stretching of specified areas rather than one uniform formula for the whole globe.
The most interesting to me is "Danseiji IV", a projection that is inspired by Dymaxion but looks a bit more organic.
blog.map-projections.net/the-d…
Direct link to Kunimune's work:
kunimune.home.blog/2019/11/07/…#MapProjections
#danseiji #danseijiIV
#dymaxion #DymaxionProjection -
An overview of Justin Kunimune's "danseiji", "elastic Earth", world map projections, a style of projection which allows the use of individual stretching of specified areas rather than one uniform formula for the whole globe.
The most interesting to me is "Danseiji IV", a projection that is inspired by Dymaxion but looks a bit more organic.
blog.map-projections.net/the-d…
Direct link to Kunimune's work:
kunimune.home.blog/2019/11/07/…#MapProjections
#danseiji #danseijiIV
#dymaxion #DymaxionProjection -
An overview of Justin Kunimune's "danseiji", "elastic Earth", world map projections, a style of projection which allows the use of individual stretching of specified areas rather than one uniform formula for the whole globe.
The most interesting to me is "Danseiji IV", a projection that is inspired by Dymaxion but looks a bit more organic.
blog.map-projections.net/the-d…
Direct link to Kunimune's work:
kunimune.home.blog/2019/11/07/…#MapProjections
#danseiji #danseijiIV
#dymaxion #DymaxionProjection -
An overview of Justin Kunimune's "danseiji", "elastic Earth", world map projections, a style of projection which allows the use of individual stretching of specified areas rather than one uniform formula for the whole globe.
The most interesting to me is "Danseiji IV", a projection that is inspired by Dymaxion but looks a bit more organic.
blog.map-projections.net/the-d…
Direct link to Kunimune's work:
kunimune.home.blog/2019/11/07/…#MapProjections
#danseiji #danseijiIV
#dymaxion #DymaxionProjection -
"Map Projections: The Hot Dog" by artist Agnes Denes 1976, in the National Gallery of Art
https://www.nga.gov/collection/art-object-page.127416.html
#Art #Maps #cartography #MapProjections #projections #AgnesDenes #HotDog #NationalGallery #NationalGalleryOfArt
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Ooh maplovers don't miss this: Kickstarter for map projection trading cards! #MapProjections https://veryspatial.com/2023/10/veryspatialtv-season-6-episode-01/
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Nostalgia – Cartography & Projections On Network TV’s ‘West Wing’
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https://youtu.be/UPaca-SrvEk?si=vhY84Z-_KopnQ083
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Cool to see map geekiness pop up on network TV drama a few years back
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• I am NOT a fan of the the Galls Peters - thinking that the Equal Earth Projection (https://equal-earth.com/) is vastly superior technically and ‘aesthetically pleasing’
• The 1569 Mercator projection was NOT designed as a ‘tool of cultural oppression’, that is a persistent myth - but rather was "... the standard map projection for navigation because it is unique in representing north as up and south as down everywhere while preserving local directions and shapes...”
• As a Trekkie, I also love that the actor John Billingsley - who plays Dr Flox - is the ‘lead scientist’…
#GIS #spatial #mapping #cartography #projection #mapprojections #gischat #StarTrek #WestWing #networkTV #TV #EqualEarth #mapping #representation #mapgeeks #mapgeekiness #mercator #rhumblines #navigation #usecase #marine #shape #area #distance -
Nostalgia – Cartography & Projections On Network TV’s ‘West Wing’
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https://youtu.be/UPaca-SrvEk?si=vhY84Z-_KopnQ083
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Cool to see map geekiness pop up on network TV drama a few years back
--
• I am NOT a fan of the the Galls Peters - thinking that the Equal Earth Projection (https://equal-earth.com/) is vastly superior technically and ‘aesthetically pleasing’
• The 1569 Mercator projection was NOT designed as a ‘tool of cultural oppression’, that is a persistent myth - but rather was "... the standard map projection for navigation because it is unique in representing north as up and south as down everywhere while preserving local directions and shapes...”
• As a Trekkie, I also love that the actor John Billingsley - who plays Dr Flox - is the ‘lead scientist’…
#GIS #spatial #mapping #cartography #projection #mapprojections #gischat #StarTrek #WestWing #networkTV #TV #EqualEarth #mapping #representation #mapgeeks #mapgeekiness #mercator #rhumblines #navigation #usecase #marine #shape #area #distance -
Nostalgia – Cartography & Projections On Network TV’s ‘West Wing’
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https://youtu.be/UPaca-SrvEk?si=vhY84Z-_KopnQ083
--
Cool to see map geekiness pop up on network TV drama a few years back
--
• I am NOT a fan of the the Galls Peters - thinking that the Equal Earth Projection (https://equal-earth.com/) is vastly superior technically and ‘aesthetically pleasing’
• The 1569 Mercator projection was NOT designed as a ‘tool of cultural oppression’, that is a persistent myth - but rather was "... the standard map projection for navigation because it is unique in representing north as up and south as down everywhere while preserving local directions and shapes...”
• As a Trekkie, I also love that the actor John Billingsley - who plays Dr Flox - is the ‘lead scientist’…
#GIS #spatial #mapping #cartography #projection #mapprojections #gischat #StarTrek #WestWing #networkTV #TV #EqualEarth #mapping #representation #mapgeeks #mapgeekiness #mercator #rhumblines #navigation #usecase #marine #shape #area #distance -
Nostalgia – Cartography & Projections On Network TV’s ‘West Wing’
--
https://youtu.be/UPaca-SrvEk?si=vhY84Z-_KopnQ083
--
Cool to see map geekiness pop up on network TV drama a few years back
--
• I am NOT a fan of the the Galls Peters - thinking that the Equal Earth Projection (https://equal-earth.com/) is vastly superior technically and ‘aesthetically pleasing’
• The 1569 Mercator projection was NOT designed as a ‘tool of cultural oppression’, that is a persistent myth - but rather was "... the standard map projection for navigation because it is unique in representing north as up and south as down everywhere while preserving local directions and shapes...”
• As a Trekkie, I also love that the actor John Billingsley - who plays Dr Flox - is the ‘lead scientist’…
#GIS #spatial #mapping #cartography #projection #mapprojections #gischat #StarTrek #WestWing #networkTV #TV #EqualEarth #mapping #representation #mapgeeks #mapgeekiness #mercator #rhumblines #navigation #usecase #marine #shape #area #distance -
Nostalgia – Cartography & Projections On Network TV’s ‘West Wing’
--
https://youtu.be/UPaca-SrvEk?si=vhY84Z-_KopnQ083
--
Cool to see map geekiness pop up on network TV drama a few years back
--
• I am NOT a fan of the the Galls Peters - thinking that the Equal Earth Projection (https://equal-earth.com/) is vastly superior technically and ‘aesthetically pleasing’
• The 1569 Mercator projection was NOT designed as a ‘tool of cultural oppression’, that is a persistent myth - but rather was "... the standard map projection for navigation because it is unique in representing north as up and south as down everywhere while preserving local directions and shapes...”
• As a Trekkie, I also love that the actor John Billingsley - who plays Dr Flox - is the ‘lead scientist’…
#GIS #spatial #mapping #cartography #projection #mapprojections #gischat #StarTrek #WestWing #networkTV #TV #EqualEarth #mapping #representation #mapgeeks #mapgeekiness #mercator #rhumblines #navigation #usecase #marine #shape #area #distance -
#Cartography #MapMaking #Hobby project update: #PixelArt #WorldMap of #PlanetEarth, #HandDrawn with #dotpict for #Android. Inspired by #JohnPSnyder & #BuckminsterFuller 's #DymaxionMap #MapProjections. You can print, cut and fold this into a 3D icosahedral (d20) #Globe. Feedback welcome! v. 1.01: northern Australia, more islands; v. 1.02: build guide.
License: #CCBY #CreativeCommons Attribution 4.0 International) vrtxd, Wed 13 Sep 2023. https://dotpict.net/works/5050966
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#Cartography #MapMaking #Hobby project update: #PixelArt #WorldMap of #PlanetEarth, #HandDrawn with #dotpict for #Android. Inspired by #JohnPSnyder & #BuckminsterFuller 's #DymaxionMap #MapProjections. You can print, cut and fold this into a 3D icosahedral (d20) #Globe. Feedback welcome! v. 1.01: northern Australia, more islands; v. 1.02: build guide.
License: #CCBY #CreativeCommons Attribution 4.0 International) vrtxd, Wed 13 Sep 2023. https://dotpict.net/works/5050966
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#Cartography #MapMaking #Hobby project update: #PixelArt #WorldMap of #PlanetEarth, #HandDrawn with #dotpict for #Android. Inspired by #JohnPSnyder & #BuckminsterFuller 's #DymaxionMap #MapProjections. You can print, cut and fold this into a 3D icosahedral (d20) #Globe. Feedback welcome! v. 1.01: northern Australia, more islands; v. 1.02: build guide.
License: #CCBY #CreativeCommons Attribution 4.0 International) vrtxd, Wed 13 Sep 2023. https://dotpict.net/works/5050966
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#Cartography #MapMaking #Hobby project update: #PixelArt #WorldMap of #PlanetEarth, #HandDrawn with #dotpict for #Android. Inspired by #JohnPSnyder & #BuckminsterFuller 's #DymaxionMap #MapProjections. You can print, cut and fold this into a 3D icosahedral (d20) #Globe. Feedback welcome! v. 1.01: northern Australia, more islands; v. 1.02: build guide.
License: #CCBY #CreativeCommons Attribution 4.0 International) vrtxd, Wed 13 Sep 2023. https://dotpict.net/works/5050966
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#Cartography #MapMaking #Hobby project update: #PixelArt #WorldMap of #PlanetEarth, #HandDrawn with #dotpict for #Android. Inspired by #JohnPSnyder & #BuckminsterFuller 's #DymaxionMap #MapProjections. You can print, cut and fold this into a 3D icosahedral (d20) #Globe. Feedback welcome! v. 1.01: northern Australia, more islands; v. 1.02: build guide.
License: #CCBY #CreativeCommons Attribution 4.0 International) vrtxd, Wed 13 Sep 2023. https://dotpict.net/works/5050966
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Really crazy how the gnomonic map projection, a cartography uniquely suited to the great-circle navigation that very modern conveyances like airliners use, is the oldest known map projection, discovered by Thales in the sixth century BC.
https://en.wikipedia.org/wiki/Gnomonic_projectionImage is a gnomonic map of much of the northern hemisphere from 1943, with a helpful explanation of how it all works.
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Also, from an aesthetic point of view, I kinda dislike that the continents in the Lee–Concialdi projection are smushed at the bottom of the map leaving the top third with the vast empty Pacific. Feels just a bit imbalanced to me. 🤷
4/4 🧵
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For me, the Lee–Concialdi eliminates two major problems I have with the Cahill–Concialdi: (1) Antarctica is halved and way overinflated, and (2) the Bering Strait is split (not a problem with the Dymaxion).
On the other hand it does introduce new problems: (1) because it is tetrahedral instead of octahedral like the Cahill, the area inflations are much larger, and (2) the math is much harder to figure out unlike the Cahill whose octants I fully understand the maths of.
3/4 🧵
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I recently learned about the Lee–Concialdi projection from Tobias Jung’s blog post: https://blog.map-projections.net/second-serving-two-more-lee-variants
It’s basically a variation of the conformal tetrahedral projection that L. P. Lee developed in 1965*, but rearranged in such a way to avoid interrupting or grossly inflating major landmasses.
* https://en.wikipedia.org/wiki/Lee_conformal_world_in_a_tetrahedron
2/4 🧵
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For today’s #MappyMondays, I’ll talk about what is probably my now second-most favorite map projection: the “Lee conformal tetrahedral projection – Concialdi rearrangement” aka the Lee–Concialdi projection. 🗺️
This projection was announced in 2020 by Luca Concialdi, the same person behind the Cahill—Concialdi bat map projection that is my current favorite. With the Lee variant projection, it shows that Luca’s preferences for good projections really aligns with my own!
1/4 🧵
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The Equal Earth Map Projection
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https://doi.org/10.1080/13658816.2018.1504949 <-- shared (2018) paper
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https://equal-earth.com/ <-- shared web page, including downloadable high resolution map products
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[an older paper, but still a wonderful projection IMHO, supported in many GIS softwares and apps now, and rightly so]
“The Equal Earth map projection is a new equal-area pseudocylindrical projection for world maps. It is inspired by the widely used Robinson projection, but unlike the Robinson projection, retains the relative size of areas. The projection equations are simple to implement and fast to evaluate. Continental outlines are shown in a visually pleasing and balanced way…”
#GIS #spatial #mapping #EqualEarth #EqualEarthProjection #projection #projections #mapprojections #mapprojection #global #worldmapprojection #PseudocylindricalProjection #RobinsonProjection #GallPetersProjection #cartography -
The Equal Earth Map Projection
--
https://doi.org/10.1080/13658816.2018.1504949 <-- shared (2018) paper
--
https://equal-earth.com/ <-- shared web page, including downloadable high resolution map products
--
[an older paper, but still a wonderful projection IMHO, supported in many GIS softwares and apps now, and rightly so]
“The Equal Earth map projection is a new equal-area pseudocylindrical projection for world maps. It is inspired by the widely used Robinson projection, but unlike the Robinson projection, retains the relative size of areas. The projection equations are simple to implement and fast to evaluate. Continental outlines are shown in a visually pleasing and balanced way…”
#GIS #spatial #mapping #EqualEarth #EqualEarthProjection #projection #projections #mapprojections #mapprojection #global #worldmapprojection #PseudocylindricalProjection #RobinsonProjection #GallPetersProjection #cartography -
The Equal Earth Map Projection
--
https://doi.org/10.1080/13658816.2018.1504949 <-- shared (2018) paper
--
https://equal-earth.com/ <-- shared web page, including downloadable high resolution map products
--
[an older paper, but still a wonderful projection IMHO, supported in many GIS softwares and apps now, and rightly so]
“The Equal Earth map projection is a new equal-area pseudocylindrical projection for world maps. It is inspired by the widely used Robinson projection, but unlike the Robinson projection, retains the relative size of areas. The projection equations are simple to implement and fast to evaluate. Continental outlines are shown in a visually pleasing and balanced way…”
#GIS #spatial #mapping #EqualEarth #EqualEarthProjection #projection #projections #mapprojections #mapprojection #global #worldmapprojection #PseudocylindricalProjection #RobinsonProjection #GallPetersProjection #cartography -
The Equal Earth Map Projection
--
https://doi.org/10.1080/13658816.2018.1504949 <-- shared (2018) paper
--
https://equal-earth.com/ <-- shared web page, including downloadable high resolution map products
--
[an older paper, but still a wonderful projection IMHO, supported in many GIS softwares and apps now, and rightly so]
“The Equal Earth map projection is a new equal-area pseudocylindrical projection for world maps. It is inspired by the widely used Robinson projection, but unlike the Robinson projection, retains the relative size of areas. The projection equations are simple to implement and fast to evaluate. Continental outlines are shown in a visually pleasing and balanced way…”
#GIS #spatial #mapping #EqualEarth #EqualEarthProjection #projection #projections #mapprojections #mapprojection #global #worldmapprojection #PseudocylindricalProjection #RobinsonProjection #GallPetersProjection #cartography -
The Equal Earth Map Projection
--
https://doi.org/10.1080/13658816.2018.1504949 <-- shared (2018) paper
--
https://equal-earth.com/ <-- shared web page, including downloadable high resolution map products
--
[an older paper, but still a wonderful projection IMHO, supported in many GIS softwares and apps now, and rightly so]
“The Equal Earth map projection is a new equal-area pseudocylindrical projection for world maps. It is inspired by the widely used Robinson projection, but unlike the Robinson projection, retains the relative size of areas. The projection equations are simple to implement and fast to evaluate. Continental outlines are shown in a visually pleasing and balanced way…”
#GIS #spatial #mapping #EqualEarth #EqualEarthProjection #projection #projections #mapprojections #mapprojection #global #worldmapprojection #PseudocylindricalProjection #RobinsonProjection #GallPetersProjection #cartography -
Get a load of this map of how much of humanity is in your personal hemisphere. Kinda impressive how remote my abode, the United States, is compared to most other countries. Guess us Americans just get used to the idea of flying nearly-antipodal distances to reach most people. Hmm.
#maps #mapprojections #demography #geography #population #thoughts #self #travel #demographics
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XKCD's take on what your favorite map projection says about you. As someone who likes the Dymaxion projection, it's just too accurate for comfort...
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My thoughts wander cartographically, from gnomonic projections to prime meridians to the land and water hemispheres.
Read more at my #blog: https://www.adamasnemesis.com/2023/04/22/more-fun-with-cartography/
This post's featured image is a 1657 map by Jan Janssonius.
#cartography #geography #geometry #primemeridian #maps #mapprojections #gnomonicprojection #greatcircles #greatcirclenavigation #greatcircleroutes #landhemisphere #waterhemisphere #demography
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Maybe because it has a certain antique charm to it, like some steampunk artifact that wouldn't look out of place on a circular locket or as the backdrop of a pocket watch. Helps that it was invented in 1898 and was used for a long time by the National Geographic Society. 🙂
#maps #mapprojections #cartography #thoughts #steampunk #history
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Don't know why, but the more I see the Van der Grinten projection the more it grows on me. Sure, it's only a modest improvement on the Mercator, greatly inflating landmasses near the poles, but you can see the poles really well, and the perfectly circular shape of the map is 😍.