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On-the-Fly Generalization Hack for ArcGIS Pro

from Adventures In Mapping | John Nelson Maps [alt+shift+b] in cartography

Generalization is one of the most important tools in a map maker’s tool kit. Sometimes the complexity of our geometry needs to be smoothed out to best visually represent a place or appear best at various scales. Here is a way (complete hack, but surprisingly effective) to generalize polygon features on-the-fly, using symbol effects…deviously. Because …
6th Feb 2024

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More from Adventures In Mapping | John Nelson Maps

Vintage retro hand-drawn-ish hillshade in ArcGIS Pro

Adding a hillshade terrain to your basemap can give the map reader incredible amounts of information about the surface of the earth. But it’s also a mechanism for adding visual charm and interest to a map! With emotional resonance and technical merit bound up together in such a way, how can you possibly resist that …

1st Oct 2026 • 1 votes
Esri User Conference 2026

I’ll be in a mad dash at the San Diego Convention Center the week of the Esri UC. If you are attending, and have nothing better to do, consider catching one of these sessions I get to be a part of with some fantastic colleagues and Ken! Basemaps Are Not Just the Background Basemaps are …

15th Jun 2026 • 1 votes
Map Layout Review & Makeover

There are a lot of things to think about and manage and tinker with when you assemble a map into a layout, but here are three overarching things to consider: Here’s an example layout that has some issues. Those issues have been addressed in this update. And here it is in a portrait orientation. You …

9th Jan 2026 • 1 votes
Make this spiral globe ornament please!

Ah the winter season is a time when we can slow down and appreciate the things that really matter. A chance to take stock of lasting joy. Clearly I’m talking about the opportunity to print out this paper craft ornament template, cut out the component globe gore panels, and assemble them into a simple treasure. …

4th Dec 2025 • 2 votes
Browser Hack: Gigantic Screenshots

Ever feel like your beautiful web map is trapped in the confines of your monitor? Do you wish its bounty could spill out beyond the stifling domain of 1920×1080? Here’s how to trick a browser’s device emulation tools to capture enormous screenshots. Now you can export your screen as though it were the size of …

4th Nov 2025 • 11 votes

More in cartography

The #30DayMapChallenge Begins

Recently, I was very impressed by 10 Years, 10 Adventures, a collection of ten WebGL-powered animated travel maps featuring 3D terrain, animated elements and trip narration. So, for today's #30DayMapChallenge, I decided to try creating something similar: a 3D map of Cap d'Antibes, which I recently visited in the South of France. My interactive 3D Map of Cap d’Antibes lets you fly around the peninsula, discover some of its best-known landmarks and view the route of an incredible coastal walk. The map includes clickable points of interest, with three photographs I took on my vacation. You can also follow an animated walking route along the coastal Sentier de Tirepoil, watching the route gradually draw itself across the 3D terrain. The map was created using Three.js, with elevation data from Mapterhorn, a service providing terrain elevation data for creating 3D maps of the Earth's surface. The elevation data was downloaded as a GeoTIFF, a georeferenced image format which stores geographic information alongside the elevation values for each pixel. This data was then converted into a 3D terrain model. The walking route was plotted separately using geojson.io, an online tool for creating and editing GeoJSON geographic data. The resulting LineString was added to the 3D terrain and animated, with its height adjusted to follow the contours of the landscape. My map is not a patch on the maps in 10 Years, 10 Adventures, but I'm happy with the results so far. With a little vibe-coding help from ChatGPT, the map only took 3-4 hours to develop. I probably won't take the project much further, as I suspect the map isn't of much interest to anybody else. However, there are plenty of ways I could improve it, including adding more photographs and points of interest, incorporating additional walking routes, and perhaps even adding narration to turn it into a more complete virtual tour of the peninsula. Read the original article at Maps Mania. Enjoyed this post? Follow @mapsmania on Bluesky.

9 hours ago • 1 votes
Asymmetric Monstrosity: Home Edition

Last year, I created a new map projection, the Asymmetric Monstrosity, designed to make somewhat of an artistic and educational statement about projections in general. I also made a physical world map to demonstrate it. Of course, there is a huge difference between a projection and an individual map that uses that projection (a distinction … Continue reading Asymmetric Monstrosity: Home Edition →

3 weeks ago • 1 votes
Hickmann's Highs and Lows

In a recent post on Attila Bátorfy's Cabinet of Infographic Curiosities, he highlighted the Czech-born geographer and statistician Anton Leo Hickmann and his early contributions to data visualization. Hickmann’s most influential work, the Geographisch-statistischer Universal-Taschen-Atlas, was published in 1894. You can view it from the Austrian National Library. it’s full of interesting charts and maps but what got my attention was this diagram. I’ve posted before about comparative mountain heights. There’s even a post on the David Rumsey Map Collection showing many different examples of these but this one is new to me. Note that I stitched two atlas pages together to make the image above. The title translated from German is “Idealized view of the most significant highs and lows“. This graphic has two layers, the top one for mountain heights sitting over a layer of sea and ocean depths. The top panel shows Europe in the foreground and from left to right Africa, Asia, South America New Zealand, Australia and Hawaii. Mount Saint Elias (straddling the U.S. and Canada) is the only North America peak shown*, Denali must have been unknown to Hickmann. Here’s a detail with the Balkans in front and Amerika (mostly south and central) in the background. The second layer has the ocean depths with major seas layered on top of them, a clever way of showing many bodies of water in the same illustration. A second grouping underneath mirrors the top ones with a focus on the Alps atop the Mediterranean Sea and its affiliated bodies of water. Here’s a detail from the third and fourth panels with the Mediterranean and Ligurian Seas on the bottom, Bern on the foreground and some of the high peaks of the Alps in the background. *Not counting Hawaii as North America. Also Mt Hooker is a name that appears in many places but none of them are close to 4185 meters. For a deep dive into the rest of Hickmann’s atlas see Atilla’s post.

3 weeks ago • 1 votes
Vintage retro hand-drawn-ish hillshade in ArcGIS Pro

Adding a hillshade terrain to your basemap can give the map reader incredible amounts of information about the surface of the earth. But it’s also a mechanism for adding visual charm and interest to a map! With emotional resonance and technical merit bound up together in such a way, how can you possibly resist that …

1st Oct 2026 • 1 votes
Is This the Worst Map in Current Circulation? No, It Is This One!

As I often mock the AI-slop maps that I see on X (“Twitter”), my account has apparently responded by sending even more garbage my way. One example recently caught my attention as perhaps the worst map that I had ever seen. Then, several days later, I encountered something even worse. The first map, from the […] The post Is This the Worst Map in Current Circulation? No, It Is This One! appeared first on GeoCurrents.

1st Oct 2026 • 1 votes
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