David Medeiros
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mapbliss.bsky.social
David Medeiros
@mapbliss.bsky.social
540 followers 160 following 180 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/
Posts Replies Media Videos
Reposted by David Medeiros
carto-giscience.bsky.social
Fantastic article on Georeferencing historical maps using automated processes, including local feature matching and Delaunay consistency from Beatrice Vaienti, Isabella di Lenardo and Frédéric Kaplan doi.org/10.1080/1523... #GISchat #OpenAccess
Figure 1, a sample of the 113 maps of Jerusalem used in this study. Figure 19, a series of 113 rectangles plotted on top of an OpenStreetMap basemap, showing the coverage of historical maps of Jerusalem.
November 24, 2025 at 4:50 PM
mapbliss.bsky.social
Maps don’t actually lie, they do exactly as they are designed to do. Most people just don’t understand maps, or Geography for that matter! 🙃
November 14, 2025 at 7:56 PM
mapbliss.bsky.social
#gischat having one of those "ArcGIS ≠ ArcGIS Online" days. 😐
November 6, 2025 at 7:11 PM
mapbliss.bsky.social
Love the gradient arrows. Under appreciated symbology IMO. Nice work!
November 6, 2025 at 3:28 PM
mapbliss.bsky.social
November 4, 2025 at 9:52 PM
mapbliss.bsky.social
Small set of older dark and moody shots for the day after Halloween. 1/2 #photography #blackandwhite
November 1, 2025 at 4:27 PM
mapbliss.bsky.social
The president is not the one who needs a dementia test, the people who voted for him are! 🙃
muellershewrote.com Mueller, She Wrote @muellershewrote.com · 27d
So the president took a dementia test, and then they administered an MRI. Where’s the media on this?
October 28, 2025 at 9:00 PM
Reposted by David Medeiros
bplmaps.bsky.social
🎃Join us this Halloween (Friday, Oct 31) to take a peak at some Creepy Cartography!👻

Be warned: these maps are not for the faint of heart!

This free showing will be Friday, October 31 in the Leventhal Map & Education Center with staff members available to answer questions.

#bpl #maps #halloween
October 25, 2025 at 3:34 PM
mapbliss.bsky.social
Absolutely nuts that he was able to raze 1/3 of the White House so fast and without any procedure to check his actions. This is NOT his house, it's ours! #fucktrump
altnps.bsky.social Alt National Park Service @altnps.bsky.social · Oct 23
ABC News released before-and-after satellite images of the White House demolition.
October 23, 2025 at 9:36 PM
mapbliss.bsky.social
Prince Andrew gives up royal titles due to Epstein scandal fallout. Great... now do Trump!

www.independent.co.uk/news/uk/home...
What has happened to Andrew’s dukedom and is he still a prince?
The King’s brother has stopped using his Duke of York title to prevent further distraction from the work of the King and the royal family.
www.independent.co.uk
October 17, 2025 at 9:04 PM
Reposted by David Medeiros
aclu.org
Make your rights known at protests and beyond with our new Know Your Rights Tee, available for preorder now at aclu.org/kyrtee_
A photo of a person taken from behind wearing the black ACLU Know Your Rights tee. On the shirt is text "Know your protest rights" with 6 rights written out. The bottom of the shirt has an ACLU logo and the link "ACLU.org/KYR" A photo of a person taken from the front wearing the black ACLU Know Your Rights tee. On the upper right side of the shirt reads "I Know My Rights" and an ACLU logo.
October 17, 2025 at 3:31 PM
Reposted by David Medeiros
micheletobias.bsky.social
Making good maps is hard. Learn a workflow to make maps that communicate well! Join my workshop "Cartography for Professional Quality Maps in QGIS" at FOSS4G North America! @foss4gna.bsky.social #gischat

www.foss4gna.org/schedule
Text over a gray, white and light blue map of the southeast US with a photo of a white woman with brown hair. Text says "Make better maps. Cartography for professional quality maps in QGIS workshop. Taught by Michele Tobias, PhD 11/03/2025 9:00-12:00 FOSS4GNA Reston, VA Register at FOSS4GNA.org
October 15, 2025 at 6:24 PM
mapbliss.bsky.social
Handy Map of SF Bay, from "The Cartoon Guide of California" by Reg Manning (1939 - David Rumsey Map Collection). #gischat

www.davidrumsey.com/luna/servlet...
October 15, 2025 at 4:22 PM
mapbliss.bsky.social
#nacis I'm missing all the mappy action again this year, so here's to all the intrepid map explorers meeting up in KY! Cheers all.
October 14, 2025 at 6:02 PM
mapbliss.bsky.social
Peter Bellerby talking about globe making at the David Rumsey Map Center. #gischat
October 9, 2025 at 10:48 PM
mapbliss.bsky.social
I heard the phrase "the independent nation of the State of Texas" in an academic talk today and am now trying to think of ways to insert this into all my conversations.
October 9, 2025 at 7:22 PM
mapbliss.bsky.social
The fascinating connection between spiders, surveying, and map making... #gischat

youtu.be/DNJM7OiqoCI?...
Why does Britain’s mapping agency have a box of spiders?
YouTube video by Chris Spargo
youtu.be
October 8, 2025 at 4:29 PM
mapbliss.bsky.social
no kings in the USA.
October 7, 2025 at 4:32 PM
Reposted by David Medeiros
altnoaa.bsky.social
Jane made the world a better place. RIP hero.
October 1, 2025 at 8:42 PM
mapbliss.bsky.social
#nokings
September 30, 2025 at 4:37 PM
mapbliss.bsky.social
Trumps idea of "left wing groups" that incite violence so far seems to be NPR and a bunch of late night comics.

www.reuters.com/world/us/tru...
Trump says he will sign executive order to dismantle left-wing groups he claims incite violence
President Donald Trump said on Wednesday he will sign an executive order this week to dismantle "domestic terrorism networks," which he has previously alleged are funded by left-wing groups inciting violence against conservatives.
www.reuters.com
September 25, 2025 at 8:47 PM
Reposted by David Medeiros
thegriffinpassant.bsky.social
No truer words were ever written...
September 23, 2025 at 5:53 PM
mapbliss.bsky.social
Recently had the chance to do a little GIS analysis for a KQED (NPR) Bay Curious podcast on the Stairways of San Francisco. Should have been a story about the triumph of GIS, ended up being more about the failure of geospatial data 🙃 But it was fun to do anyway!

www.kqed.org/news/1205633...
Stairways Crisscross the Hills of San Francisco. Here's Why People Love Them | KQED
San Francisco neighborhoods are known for steep hills and stairways to help residents navigate. Whether it’s Bernal Heights, Mount Sutro, Noe Valley or Telegraph Hill, we went on an adventure to find ...
www.kqed.org
September 23, 2025 at 8:42 PM
Reposted by David Medeiros
pinakographos.bsky.social
New poster! Hachure illustrations of the highest Cascade Range volcanoes. This one took a lot of experimentation to get the layout right. If you or someone you know loves this area, check it out. www.etsy.com/listing/4373...
A black and white illustration titled "Cascade Range Volcanoes," showing a 3 by 3 layout of the nine tallest peaks in the range. The art is done in a hachure sketch style. A detail image of the illustration of Mount Rainier A detail image from the poster of Mounts Hood and Jefferson.
September 23, 2025 at 7:38 PM