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David Medeiros

@mapbliss.bsky.social
583 followers 175 following 381 posts

GIS and cartography. BW photography. Woodworking. Food, family and adventure. Map posters @ www.etsy.com/shop/MapBliss. BW IG @ www.instagram.com/the.taking.lens/

PostsRepliesMedia
David Medeiros @mapbliss.bsky.social · 02/10/2026
Sitting next to somewhat famous recently discovered mastodon tooth right now. 
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David Medeiros @mapbliss.bsky.social · 02/10/2026
So not to be pedantic but there are actually a lot of skilled carpenters, cabinet makers, and other woodworkers already in Hawaii. Why do you need to bring over new ppl from elsewhere to get something done?
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David Medeiros @mapbliss.bsky.social · 29/09/2026
There's some really neat ones in there. Good design inspiration for students. The Locations facet is a good way to get at the non traditional maps.
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David Medeiros @mapbliss.bsky.social · 29/09/2026
Came across this little gem while looking for resources for counter mapping workshop: www.handmaps.org #handdrawnmaps
handmaps.org
from the archives of the Hand Drawn Map Association – from the archives of the Hand Drawn Map Association
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David Medeiros @mapbliss.bsky.social · 28/09/2026
You got all three letters right so that’s a win in my book!
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David Medeiros @mapbliss.bsky.social · 26/09/2026
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David Medeiros @mapbliss.bsky.social · 25/09/2026
Was just looking at hard copy of this map yesterday. Nice texture on the print. We have a watercolor world map from the same cartographer as well. Same style and texture. Really nice work.
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David Medeiros @mapbliss.bsky.social · 24/09/2026
Yeah, I thought it was still called that even in Pro, but I think this is all now just "effects" on the Symbol panel.
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David Medeiros @mapbliss.bsky.social · 24/09/2026
#gischat Cartographic Representations were an ArcMap thing only, is that right? What took over from that in Pro? What does Esri call the functions that do on-the-fly symbology changes like line offsets and layered symbol styles?
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Reposted by David Medeiros
NPR @npr.org · 23/09/2026
The First Amendment defined the right to free speech and a free press. But a free press doesn't just happen. It's something we must protect. Your support is essential to our ability to provide journalism that upholds your right to know. Donate now: n.pr/4hgyjzz
Statement on White House bans from Thomas Evans, NPR’s Editor in Chief: Barring journalists from the White House because the president dislikes their reporting is a blatant violation of the First Amendment, and NPR condemns it without qualification.The American public has a right to know what its government is doing in its name — not only the coverage a president finds flattering, but the full and accurate account of the use of power and public resources.That right belongs to the public, and it is not the president's to revoke. The press, and specifically public media, exists to conduct that accounting to every American, in every community, in service to the public interest.NPR and our Member stations will continue to uphold these First Amendment rights, and to stand with any news organization targeted for its reporting.
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David Medeiros @mapbliss.bsky.social · 16/09/2026
The more I look at it the more I think we need names and answers!
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David Medeiros @mapbliss.bsky.social · 16/09/2026
We have this exact globe at Branner Earth Sciences Library at @stanfordulibraries.bsky.social. Right as you walk in! 🌎
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David Medeiros @mapbliss.bsky.social · 16/09/2026
🙃
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David Medeiros @mapbliss.bsky.social · 16/09/2026
Except, that’s not a Mercator Antarctic? What are we looking at!
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David Medeiros @mapbliss.bsky.social · 16/09/2026
I mean it’s not a small error. At first I thought they somehow mashed up a Mercator Greenland into the Natural Earth projection, then I saw the caption!
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David Medeiros @mapbliss.bsky.social · 16/09/2026
A “cartographer” made this?
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Reposted by David Medeiros
NACIS @nacis.bsky.social · 13/09/2026
Cartographic Perspectives is planning a special issue on Mobile and Responsive Cartography. We are primarily seeking peer-reviewed research articles, narrative case studies, and position papers. More detail in 🧵 below
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David Medeiros @mapbliss.bsky.social · 10/09/2026
Glad I'm not Tom right now! 😛 www.abc.net.au/news/2026-09...
abc.net.au
Why Japan wants the new world map changed
Japan was among the 164 UN members that supported the new world map, until it realised the disputed Kuril islands were in the same colour as Russia.
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David Medeiros @mapbliss.bsky.social · 09/09/2026
Since you're working in Illustrator anyway could you export your vectors and rasters separately and re-compile? Rasters exported separate from vectors lets you export them as JPGs at any resolution and keeps your vector exports clean too.
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David Medeiros @mapbliss.bsky.social · 09/09/2026
FWIW, I never use pixels for anything unless its just a single image or I'm working from something like PS. I don't feel like QGIS works behaves well in pixel dimensions and/or small layout sizes.
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David Medeiros @mapbliss.bsky.social · 09/09/2026
Oh yeah, that's got to be it. I've been incrementally shrinking my layout from 900x900 to 600x600 then 180x180. The in-layout render always looks the same, but when I hit 180 pixels you can see the export raster is much more pixelated. You prob have to re do the layout.
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David Medeiros @mapbliss.bsky.social · 09/09/2026
How small is the layout?
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David Medeiros @mapbliss.bsky.social · 09/09/2026
Its probably going to be some interaction between the export engine and layout size, screen size, or original image size - or even rendering settings in QGIS.
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David Medeiros @mapbliss.bsky.social · 09/09/2026
I'm trying to recreate this with a small project but all my PDF exports show the same rester as what I see in screen in QGIS regardless of the changes I make to export dpi. I wonder if you are having a general memory issue? How big is the PDF export?
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David Medeiros @mapbliss.bsky.social · 09/09/2026
There is also an export resolution setting in the layout properties, but no idea if that affects PDF exports. You might also try oversizing the layout (larger size same aspect ratio) to get a higher res image in the PDF, then resize in Adobe later.
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David Medeiros @mapbliss.bsky.social · 09/09/2026
Are you changing from the default Lossy to Lossless for image compression settings?
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David Medeiros @mapbliss.bsky.social · 09/09/2026
Public advisory for influencers talking about Hawaii post hurricane Lowell. You can be IN Hawaii (the state) or IN Lihue’ but you are ON Kauai. Stop saying “in Kauai”!
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David Medeiros @mapbliss.bsky.social · 08/09/2026
Dymaxion (or Fuller if you're not paying the lic fee!) was my gateway projection to making and selling abstract-ish map posters. I keep hoping some student project will come across my desk that needs it one of these days, but alas... it's just too weird!
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David Medeiros @mapbliss.bsky.social · 05/09/2026
I will only accept replies from John in the form of folksy videos with chickens in them.
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David Medeiros @mapbliss.bsky.social · 04/09/2026
Equal Earth is more accurate for area representation, but I feel like its still very non-conformal (Africa is very elongated) How far off is Robinson in area? Its got a more natural/conformal look to the shapes of land masses and at first glance seems closer to Equal Earth for area than Mercator.
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David Medeiros @mapbliss.bsky.social · 02/09/2026
Links to a whole set of reading on Color use in maps and graphics here: sites.google.com/stanford.edu...
sites.google.com
GIS Cartography Resources
bit.ly/giscart
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Reposted by David Medeiros
Datawrapper @datawrapper.de · 01/09/2026
This week's Data Vis Dispatch covers the Nepal-Tibet floods, Shein’s IPO 👚📊, heat-related deaths🌡️⚠️, Trump's endorsements 🇺🇸, and the Hugging Face incident 🤖. Explore these topics and much more in the newly posted blog 👇 www.datawrapper.de/blog/data-vi...
A map of South America showing the annual average discharge of rivers and precipitation in the watershed. The Amazon River, which carries 20% of the world's freshwater, flows across northern South America. Other colossal rivers include the Orinoco and the Tocantins. Published by Perrin Remonté.A chart displaying the primary candidates endorsed by Donald Trump. Trump has endorsed at least 260 primary candidates, of whom only nine have lost their races. Published by the New York Times.A map showing the changed route taken by Indian LPG tankers due to the Iran War. Since India has turned to the US as a new supply source, the route from India to the US Gulf Coast now takes more than 40 days. Published by Bloomberg.A chart illustrating the ten rebookings of a Mexican woman that occurred at the Pinellas County Jail. For almost a month, the rebookings kept occurring just before the 72-hour time limit was due to expire, in order to keep the woman in custody. Published by ProPublica.
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David Medeiros @mapbliss.bsky.social · 01/09/2026
I read it maptimeDivas which I think should also be an account!
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David Medeiros @mapbliss.bsky.social · 31/08/2026
TLDR... John Snow wasn’t the cartographer, he didn’t invent GIS, the map didn’t lead to the discovery of the outbreak source. This is once of geography's oldest and least accurate mythologies. What's too bad is the real story is still very interesting and informative!
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David Medeiros @mapbliss.bsky.social · 27/08/2026
Every time he does this he erodes the value intrinsic in the American identity. He makes himself a petty weak fool, he erases history, and diminishes the identity of a nation to nothing more than a crude branding mark that will inevitably be undone when he's dead and gone.
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David Medeiros @mapbliss.bsky.social · 26/08/2026
Rainbow colors are an objectively terrible way to relate "more or less" as a data range to symbology. Besides mismatched color connotations, when converted to BW you can clearly see the false high value peaks in the ramp.
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David Medeiros @mapbliss.bsky.social · 26/08/2026
All the wrong 80-year-olds are dying.
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Reposted by David Medeiros
Attila Bátorfy @attilabatorfy.bsky.social · 25/08/2026
A beautiful map on the locations, numbers and genealogies of Muslim brotherhoods in Algeria from 1884. Full story here: attilabatorfy.substack.com/p/seeds-leav...
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David Medeiros @mapbliss.bsky.social · 25/08/2026
Has Ultima III Exodus vibes!
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David Medeiros @mapbliss.bsky.social · 25/08/2026
More pixel art maps please! #gischat
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David Medeiros @mapbliss.bsky.social · 23/08/2026
Mt. Everest is the 'highest' mountain. Mauna Kea is the 'tallest'. The distinction is subtle but relatable. Furthest from the center of the earth feels like a non sequitur.
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David Medeiros @mapbliss.bsky.social · 22/08/2026
Flock cameras are the Cybertrucks of the law enforcement world. They are objectively terrible, everybody hates them, and the people who use them are blissfully ignorant of what douchebags they are. #deflock @deflock.org
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David Medeiros @mapbliss.bsky.social · 21/08/2026
Diamond Head looks pretty spot on!
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David Medeiros @mapbliss.bsky.social · 21/08/2026
Ahh, that was so close! 🙃
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David Medeiros @mapbliss.bsky.social · 18/08/2026
It's a fine line. A lot of it just feels tabloid and creepy. But there are some exceptions I think. Not sure if this is "true crime" but I loved Mindhunter.
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David Medeiros @mapbliss.bsky.social · 15/08/2026
Looking for an 'affordable' house to rent in the Bay Area? Not on the peninsula you're not!
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David Medeiros @mapbliss.bsky.social · 12/08/2026
That's part of the repeating style I'm seeing. There's also a hard to define graphic "richness" to them. In photographic terms I'd say they are too well balanced in exposure, oversaturated, and have a strong high-dynamic-range quality. You see the same in photorealistic AI images and videos.
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David Medeiros @mapbliss.bsky.social · 12/08/2026
Discovering that many of the compromise projections push Australia and New Zealand off the page in lower R corner while projs like Miller don't. Patterson projection is a possible middle ground, but I'll prob end up with Miller anyway.
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David Medeiros @mapbliss.bsky.social · 12/08/2026
One of the things I want to study in the #365daysofmaps project are those maps that stand out as having an obvious AI 'style' and see what defines that to me. Not all of the examples look the same but a LOT of them seem to have the same base aesthetic despite the prompts.
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David Medeiros @mapbliss.bsky.social · 12/08/2026
...I dislike most AI generated map design I've seen so far and this project hasn't changed that opinion much. But I have learned a lot about the process and discovered that AI interactive maps may be pretty useful. And AI data discovery and prep may as well. Give them time to finish.
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