awoodruff

awoodruff, 6 months ago

@gowin @themapsmith the one I remember is https://dropchop.io which does a handful of things based on turf.js. (By the way mapshaper can do a ton of stuff by command line! https://github.com/mbloch/mapshaper/wiki/Command-Reference)

awoodruff, 6 months ago

@gowin @themapsmith Yay, glad to know it was the right one! I couldn't remember the name but found it again by remembering one of the people working on it, probably 10+ years ago at this point!

awoodruff, 7 months ago

For day 1, points, here are 289 GNIS place names of “cape” type in Massachusetts with the word “point” in them. #30DayMapChallenge

Detail from a grid of maps titles "Points of Massachusetts" each showing land and water near places with the word "point" in their name. Nine maps are show in this close-up image.

awoodruff, 7 months ago (edited 7 months ago)

Day 2, lines. These town boundaries are polygons, sure, but I promise they’re symbolized with lines here. Just messing around in QGIS to try for something that looks hand-drawn with markers. Bonus game: spot the errors in the color scheme! #30DayMapChallenge

awoodruff, 7 months ago

Day 3, polygons. Grid cells intersecting places (per OpenStreetMap) in the Boston area with polygons in their names. Sadly, I didn’t see any with more than four sides. I used these maps to work toward a kind of pencil on graph paper style in QGIS. #30DayMapChallenge

awoodruff, 7 months ago (edited 7 months ago)

Day 4, a bad map. It took too long to figure out the right way to make a wrong map, but I got there in the end. #30DayMapChallenge

awoodruff, 7 months ago

Day 5, Analog Map. Areas of my house where some kind of analog device—here meaning clocks and timers as well as electronic devices with continuous controls such as dials—is visible.

awoodruff, 7 months ago

Catching up on day 6, Asia. I had plans for mapping the range of plants and animals that have “Asian” in their name, but alas, I don’t have time to understand the data well enough. So here’s just one animal, the Asian Elephant. #30DayMapChallenge

awoodruff, 7 months ago

Day 7, navigation. I remade one of the maps from the “you can’t get there from here” series I did many years ago, which showcase some spots around the Boston area where a short distance is a much longer and circuitous trip by car than by foot. https://andywoodruff.com/blog/you-cant-get-there-from-here/ #30DayMapChallenge

awoodruff, 7 months ago

Day 8, Africa. Since I did elephants for Asia, here’s a quick thing on African elephants. #30DayMapChallenge

awoodruff, 6 months ago

Day 9, hexagons. My only thought was “snowflakes” and I’m just going to quit here, going overboard with piling up snowflake symbols to represent snow depth at some point during the snowy winter of 2015 In Massachusetts. #30DayMapChallenge

Detail from A map of Massachusetts and surroundings, covered with many snowflake symbols with drop shadows in an attempt to convey snow depth.

awoodruff, 6 months ago

Day 10, North America. Keeping this quick by making only a few tweaks to an elevation profile drawing thing that I made a year or two ago. #30DayMapChallenge

Detail of An oblique perspective map of elevation profiles of North America. A series of lines run horizontally and are distorted vertically according to the terrain elevation as they cross the map. The lines are filled as solid shapes with shadows to make the scene appear somewhat three dimensional.

awoodruff, 6 months ago

Day 11, Retro. Not a complete map, but rather just seeing how far I can get with “antique” effects using QGIS symbologies and geometry generators. Slightly wobbly, uneven lines; some aged paper texture and fading; and of course the classic water line style. Much of it’s intentionally subtle, so you might have to look closely to see it. #30DayMapChallenge

awoodruff, 6 months ago

Day 12, South America. Lazy Sunday, so I’ll just repeat what I did for North America. #30DayMapChallenge

Detail from an oblique perspective map of elevation profiles of South America. A series of lines run horizontally and are distorted vertically according to the terrain elevation as they cross the map. The lines are filled as solid shapes with shadows to make the scene appear somewhat three dimensional.

awoodruff, 6 months ago

Day 13, choropleth. I’m only using a choropleth map as a means for trying to figure out a halftone look with QGIS. It’s not perfect, but I think I made some progress!

A map of population density in census block groups in the Boston area, made from patterns of black, cyan, magenta, and yellow dots that mimic halftone printing.

awoodruff, 6 months ago

Day 14, Europe, is another exercise in antique map styles with #QGIS. Again the effects are subtle and perhaps hard to see in this image, but there is a lot of unevenness and imperfection added in an attempt to mimic a hand-made map of a certain era. (Also, sorry, the font I used here does not include any diacritics for the proper place names!) #30DayMapChallenge

awoodruff, 6 months ago

Day 15, OpenStreetMap. Just taking it easy today with some very important stuff from OSM. #30DayMapChallenge

awoodruff, 6 months ago

Day 16, Oceania. Avert your eyes from this dizzying video speeding through maps of some 16,000 islands in the Pacific, based on land polygons in OpenStreetMap. (So, y’know, ©OpenStreetMap contributors.) #30DayMapChallenge

Video rapidly progressing through simple green and blue maps of islands in the Pacific

awoodruff, 6 months ago

Day 17, Flow. Taking it easy again by generating another one of these feathery terrain things that I’ve done a million times already, since they are essentially crude models of hydrologic flow. #30DayMapChallenge

awoodruff, 6 months ago

Day 18, Atmosphere. Cloud fraction, October 2023, via NASA Earth Observations. https://neo.gsfc.nasa.gov/view.php?datasetId=MODAL2_M_CLD_FR #30DayMapChallenge
☀️ <= .3
🌤️ .3 – .7
☁️ >= .7

awoodruff, 6 months ago

Day 19, 5 minute map. Contours of the Big Island from https://contours.axismaps.com/ which, of course, definitely took me more than 5 minutes to build a few years back. #30DayMapChallenge

awoodruff, 6 months ago

Day 20, Outdoors. I wanted to see how far I could get with a nice trail map using only tools and plugins in #QGIS (i.e., no graphic design software). Not as far as I wanted, but only because there wasn’t time! #30DayMapChallenge

A trail map of the area around Mt. Chocorua, New Hampshire, including hill shading, elevation contours, trails marked with red and black dashed lines, roads, and green shading indicting the White Mountain National Forest.

awoodruff, 6 months ago

Day 21, Raster. Just seeing if I can produce a misty/foggy thing using only a single DEM, by trying some GDAL operations and symbolizing in QGIS. #30DayMapChallenge

awoodruff, 6 months ago

Fell a few days behind on #30DayMapChallenge… here’s day 22, North is not always up. Recently I made a map of the 2024 eclipse oriented so that the path of totality is vertical for scrolling: https://andywoodruff.com/posts/2023/eclipse-2024/. So here’s a snippet of the same map oriented for the 2017 eclipse. (This did, at least, require re-rendering shaded relief with a different lighting direction, and moving a few labels.)