Evan Applegate

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Evan Applegate

Evan Applegate

@youwillmakemaps

Vocational cartographer, design @durinmining • https://t.co/X5SvX8aR3h • The best maps lie ahead, and you’re going to make them

Los Angeles, CA Katılım Şubat 2024
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Evan Applegate
Evan Applegate@youwillmakemaps·
The Best Maps Lie Ahead I want my favorite material culture to live. I want people in 2130 to cherish a map made in 2030. I want to see another Turgot-level map produced before I die (pic related). In 1910 you could buy a 5-cent rail route pamphlet that looks better than nearly any map you can buy today. This couldn't be otherwise, considering who makes today’s maps: • Atlas cartographers: mostly gone, those who remain can’t pick colors (exception: @ClarkGeomatics @BenchmarkMaps ). • GIS managers: their job is to manage the sewer pipe database and make maps for 8.5x11" PDFs, can’t design or don’t have time. • Editorial cartographers: under tight deadlines, editors don’t care, art directors don’t know how to shape or commission nice maps (Exception: Laris Karklis, Carl Churchill). • Government cartographers: almost all GIS managers, the maps just gotta reflect the database, nobody cares how they look (exception: Anna Eshelman). • Nonprofit cartographers: too busy with GIS tasks, boss doesn’t care about nice maps. • Big tech cartographers: Google/Apple’s maps are database outputs, too constrained by people poking at the map to make them look nice (exception: Nat Slaughter). • Academic/critical cartographers: not rewarded for making nice maps, rewarded for writing recondite PDFs about maps. • Capital A Artists: too into deconstruction to make a sincere attempt (exception: Ido Michaeli). • Biz intelligence cartographers: who’s gonna cherish a bunch of hex bins and choropleths? Everyone likes old maps because olde timey cartographers started with a blank page and built up; the computer inverted this, letting you start with a cluttered page full of someone else's data and toss what you don’t want to show. So the computer grants insane leverage to mapmakers (drafter, illustrator, scriber, letterer, colorist, engraver used to be separate jobs) but at an aesthetic cost: 1) You have to actively fight your tools to make the map look like you care about how it looks (████ Esri) 2) A good map requires attention over every square inch. This was built into pre-computer maps because a cartographer couldn't make his/her marks without looking over every bit, but now it’s an extra step that no one’s getting paid for, so it's relatively rare. There are still dozens of excellent cartographers working today, on and off the computer. In my opinion the best contemporary mapmakers are commercial illustrators; they still start with a blank page, they care about gestalt and composition first, and they don't just affirm software's idea of what a map should look like. Cf. the work of @thisismikehall , Rodica Prato, Neil Gower, Kevin Sheehan, Alex Hotchin. What is to be done? Every beautiful map that makes you think "they don't make 'em like they used to": it can be made right now, and better. They had "time, strength, cash, patience," but while attenuated, those things are still around. A patron could pay an illustrator to walk around a city for years and draw every building he saw, like the Prévôt des Marchands of Paris did in 1734. The bad news is there is no living memory of this art, no old hands to teach how the past's rich maps were constructed. We start from scratch. The good news: we know exactly what to aim for. A time and money problem sounds tractable to me. The best maps of the future, computer-mediated or otherwise, will require 1) people who care enough to make them and 2) close-range instruction. Unfortunately there’s no building in the U.S. to combine those two, where the enthusiastic meet the skilled and learn to make beautiful maps. Formal cartographic education does not exist in America; I have a (free) M.S. in cartography and all of the looks-nice mapmaking I did was extracurricular. Today’s talented anglophone mapmakers taught themselves. The autodidacts are my favorite, but you shouldn't have to bootstrap your own training to make nice maps. I'm a pro cartographer and I learned the trade by sitting at Daniel Huffman’s elbow and asking 2 years of stupid questions. There's no substitute for sharing a desk with a great cartographer. This is solved with one building, a few million bucks and ten instructors, i.e. a school with a 1:1 instructor ratio, i.e. map apprenticeships. Provide a nice space for pro mapmakers to work, students with extant art/design chops pick their mentor do their scut work (shoving around thousands of labels is a rite of passage) and receive a bite of their mentor's project fees. The teacher gets a useful helper and thus can accept more ambitious projects. If you know a pile of money who wants the future to have great maps, tell them to DM me, I got plans. Pictured: 1739 Plan de Paris, commissioned by Prévôt des Marchands Michel-Etienne Turgot, an ~8x10 ft. print made from insanely detailed engravings, took six years to complete. Money-fine, enormous, you'd go blind before you counted all those trees someone had to scratch into brass...
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Brandon Yoshizawa
Brandon Yoshizawa@bay_photography·
Sitting here watching the wind kiss the poppies and suddenly there’s not another care in the world. I love it in beautiful Southern California.
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Brandon Yoshizawa
Brandon Yoshizawa@bay_photography·
California golden poppies as far as the eye can see
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Evan Applegate
Evan Applegate@youwillmakemaps·
It’s time to make your own interactive map-tool that lets you align old maps with new "I wouldn't know where to begin" luckily the LLM is going to do *all* of the work
Evan Applegate@youwillmakemaps

Here's a copy/paste prompt recipe and vid showing exactly how to ask an LLM for an interactive map with satellite/map layers + a georeferencer that lets you see how old maps correspond with modern geography. Today the computer can’t make good print maps (that's your hill to climb youshouldmakemaps.com ) but it can, with five bucks and twenty minutes, make good interactive maps. No software/GIS knowledge necessary, you just need a few nouns and an LLM. Scroll to the bottom for the repo/live map if you want those. I'm using Claude Code as an extension in VS Code but you can use the Claude CLI, Cursor, whatever. 1) Let's grab an old cadastral map and see who owned big tracts of a city; I found this an 1854 map of Niagara Falls, NY I found in the Library of Congress: loc.gov/resource/g3804… , grabbed the .jp2, saved as a jpg from photoshop. 2) Let's ask Claude Code for a map. You can see exactly what I did in the video but my prompt, sans simple "hey it's busted" debugging, is written out in the following paragraphs. I explain the map-specific nouns in brackets. You can likely dump this whole thing in your LLM window and it'll work; I'd try plan mode + skip permissions. THE PROMPT Make an interactive map with MapLibre GL JS [maplibre is a javascript mapping library, a FOSS version of Mapbox GL JS. This lets us display tiled map data and arbitrary images on the map] Add basemap toggles with Esri satellite, Carto Positron, and OSM [these map layers require no API keys for light usage; Carto Positron is a nice road map layer and OSM is ugly but comprehensive] Add a globe/mercator projection toggle [I think the globe looks better at low zooms] Add a layer panel on the left with visibility checkboxes and delete buttons. Add a search box on the map that flies to results, with deletable pin markers [Makes this easy to get to your area of interest] Include an interactive local georeferencer: drop a JPG, pick ground control points on a zoomable/pannable image viewer, place them on the map, watch it warp with a progress bar centered on the map. [The georeferencer uses math ("affine transform"??) to match points on the old map to points on the new map; generally you click road intersections on the old map, match them on the new map, repeat a dozen times and everything aligns] The georeferenced map overlay defaults to 25% opacity with a slider above the control point list. [I want it easy to see the underlying modern geography] Add Export/import control point buttons [this saves the control points as a JSON so you can save and reimport your work] Add a button to export the warped image as a GeoTIFF with a .prj [In case you want to add the georeferenced image to a real GIS program like QGIS] Look up all relevant docs before starting [Claude sometimes uses outdated stuff] Split everything into separate HTML/CSS/JS files [Claude tends to pile everything in index.html, which is hard to read] Use Optima font, base color #FEFAF6 [I just like this style] Let me test with a local server [it serves it on a simple server so you can nav your host to localhost:8000 and try it out] Log all errors [so you don't have to play telephone with the LLM describing what's busted] 3) Once your LLM finishes, test it out in your browser; if it doesn't work, ask the LLM to check logs. Repeat 'til functional. 4) After this works on your computer, you can show it to everyone by hosting it on GitHub: prompt with "write a README explaining what everything does, add it to a new GitHub repo, deploy using GitHub pages, gimme the live URL" Here's what Claude made for me, try it yourself: evanapplegate.github.io/simple-georefe… • Upload the JPG in the repo, which is linked below • "Add GCP" • Click somewhere recognizable on the old map, like the tip of an island or a road intersection • Click the matching point on the new map • Repeat til you have least 3x points • Hit "georeference" • You'll see the old map atop the new map; if you want a better fit, delete bad points or add a dozen new ones, hit georeference again, repeat Repo: github.com/evanapplegate/… Is this map robust? Human-maintainable? Elegant? Performant? Secure? No, but *your* personal web map need not be. It just needs to work for *your* narrow use case, because it’s *your* map. x.com/_austin_cassid…

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Evan Applegate
Evan Applegate@youwillmakemaps·
Map cyanotypes by French artist Emmanuelle Boudailliez
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Evan Applegate
Evan Applegate@youwillmakemaps·
Two-block linocut topo map prints of Mt. Kazbek, Georgia by Alyona Avdeeva
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Evan Applegate
Evan Applegate@youwillmakemaps·
@adam_keesling I also only "use" maps for nav If I make a map it's for a) cash or b) just to make a nice portrait of a territory To find the maps you should make.....you must look within.................
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adam keesling
adam keesling@adam_keesling·
@youwillmakemaps i love maps but don’t feel like i use them outside of navigation as a regular urban dweller what’s my use case here what maps should i make
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Evan Applegate
Evan Applegate@youwillmakemaps·
@haris_chc You might like this book of old stock certificates, real cheap used
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haris
haris@haris_chc·
Letterheads, found in various archives.
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Richard Burton
Richard Burton@Ricburton·
🌄
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Wade
Wade@WadingSmith·
Good Wednesday morning. A little taste of cotton candy skies over the lumber sheds this morning.
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Jacob Shell
Jacob Shell@JacobAShell·
...and Michael Smith
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Ringo Hospitality
Ringo Hospitality@RingoHosp·
i cannot overstate the strength of the boston accents in the gym locker rm rn
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Ringo Hospitality
Ringo Hospitality@RingoHosp·
overheard at the pump in lenox: "gas is goin up like a bastard yo!" (in a great boston-ish accent)
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L.A. Dork
L.A. Dork@la_dorkout·
Opened in 1908, Silver Lake & Ivanhoe Reservoirs were like today's Franklin Cyn Reservoir -- unfenced, dirt shoreline, reeds. You could swim or fish for bass, and the city hosted fishing tournaments. The fence went up by WWII, owing to security concerns & cars often careening in.
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