Eugene Alvin Villar
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seav4f.bsky.social
Eugene Alvin Villar
@seav4f.bsky.social
390 followers 350 following 630 posts
digital crafter (coder, cartographer, graphic designer, tech writer) ▪︎ open data/knowledge advocate ( #OpenStreetMap, #Wikimedia, #Wikidata) ▪︎ Oxfordian commaist ▪︎ 🇵🇭 ▪︎ he/him 🏳️‍🌈

primary microblog: https://en.osm.town/@seav (Mastodon)
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seav4f.bsky.social
#SilentSunday #photography #MacroPhotography
Macro photo of a gel pen in focus placed on top of brown paper with a crude drawing of a die
December 7, 2025 at 1:41 PM
seav4f.bsky.social
I just learned that Frank Gehry passed away. 😔

I looked at the list of buildings he designed and the only one I have ever seen (and have a photo of) is the DZ Bank Building in Berlin 🇩🇪 beside the U.S. Embassy. But I didn’t know he was the architect when I took this photo.
Elevated view of buildings to the south of Berlin’s Pariser Platz, from left to right: the Axica Convention Center (previously the DZ Bank Building), the United States Embassy Chancery, and Haus Somner. The Brandenburg Gate is partially seen on the right side of the photo.
December 6, 2025 at 5:57 AM
seav4f.bsky.social
#SilentSunday #sunsets #clouds
Stratus clouds at sunset in various shades of orange-gray with some silhouetted cumulus clouds in the lower foreground
November 30, 2025 at 10:02 AM
seav4f.bsky.social
#SilentSunday #MacroPhotography
Dark blue-tinted macro photo of a backlit keyboard depicting the following keys: 8, 9, 0, -, U, I, O, P, H, J, K, L, B, N, and M
November 23, 2025 at 10:50 AM
seav4f.bsky.social
Another film, another unattributed use of @openstreetmap.bsky.social. This is the fourth film that I’ve seen this year do this and the latest culprit is this Christmas @netflix.com romcom named Champagne Problems.

Their travesty is now immortalized on the OSM Wiki: wiki.openstreetmap.org/wiki/Films
Frame from the 2025 romcom Champagne Problems showing a printed map of Paris, France, centered at the Tuileries Garden. A partially off-frame hand holding a pen is drawing a path on the map passing through the said garden.
November 22, 2025 at 11:21 AM
seav4f.bsky.social
In 2021 I gave a talk about “openness” briefly tracing the history from the Free Software movement, GNU, and OSS, to open formats like XML and ODF, then to the Free Culture and open data movement like @creativecommons.bsky.social, @wikipedia.org, and Wikidata. 1/2
Open Formats and Standards Open Geospatial Consortium Free and Open Source Software OSGeo Linked Open Data OpenStreetMap
November 21, 2025 at 6:41 AM
seav4f.bsky.social
Not sure about a new career but fulfilling is what I hope to get.

#fortune #FortuneCookies #PandaExpress
A strip of white paper on a wood-textured surface with red text stating “You will soon begin a new and fulfilling career” with “Panda Express” under it.
November 17, 2025 at 4:58 AM
seav4f.bsky.social
#SilentSunday #plants #HousePlants #flora #photography #Terminalia
November 16, 2025 at 9:16 AM
seav4f.bsky.social
#30DayMapChallenge 🗺️ Day 6️⃣: Dimensions

I decided to use time as my dimension and create a simplified animated map showing the Earth’s terminator (the line dividing day and night) around the #Philippines 🇵🇭 at 6 p.m. throughout the year. 🧵 1/3
November 9, 2025 at 5:37 PM
seav4f.bsky.social
#30DayMapChallenge 🗺️ Day 5️⃣: Earth

Here’s a minimal isometric relief map of Santorini. I haven’t been to #Greece 🇬🇷 but I definitely want to see Athens, and either Santorini or Mykonos. Maybe I hope that by creating this map I can manifest that trip? 😁

Digital elevation model data is from NASADEM.
Map of the island group of Santorini shown in an oblique isometric view such that the sea level is a very light tan color with the islands in an aqua color ranging from nearly transparent at sea level to very dark cyan at the highest point. The map is titled with a large text “SANTORINI” with the Greek “ΣΑΝΤΟΡΊΝΗ” above it in a smaller font size and the coordinates 36° 24′ 13″ N ▪ 25° 23′ 45″ E below in an even smaller font size.
November 6, 2025 at 9:07 AM
seav4f.bsky.social
#30DayMapChallenge 🗺️ Day 4️⃣: My data

Here is a hexbinned map of the over 1600 #Wikidata items I’ve created that have coordinates. The vast majority of these are items on barangays and historical markers which you may have seen I’ve posted about if you’re following me. 😉

🧵 1/2
Map of the Philippines as a grid of hexagonal cells with a radius of around 10 km and where the cell’s color indicate number of items, ranging from deep blue (0) to bright yellow (high value). The brightest cells are located around Manila.
November 4, 2025 at 11:00 AM
seav4f.bsky.social
#30DayMapChallenge 🗺️ Day 3️⃣: Polygons

I went with a classic #choropleth map to keep things simple and this one shows the population change of the 201 barangays (kinda like wards) of the city of Pasay in the #Philippines 🇵🇭 between the 2000 and 2024 censuses. 🧵 1/2

en.wikipedia.org/wiki/Pasay
Choropleth map of the 201 barangays (wards) of the city of Pasay in the Philippines showing the population change between the 2000 and 2024 censuses. The more positive the population change, the more dark blue the barangay gets while the more negative, the more dark red.
November 3, 2025 at 11:29 AM
seav4f.bsky.social
#30DayMapChallenge 🗺️ Day 2️⃣: Lines

This map shows all the airports with direct flights from #Singapore’s 🇸🇬 #ChangiAirport (#SIN) rendered on a custom logarithmic azimuthal map. Airports that are served by more airlines, like Jakarta (CGK) and Narita (NRT), are shown more prominently. 🧵 1/3

#avgeek
Light-grayscale map titled “Airports with direct flights from Singapore’s Changi Airport”. The map is circular using an azimuthal projection centered on Singapore, labeled with a red dot with the IATA code of SIN, and with distances marked in a roughly logarithmic scale in intervals of 1000 nautical miles. Lines connect Singapore with 162 other airports labeled with their IATA codes. Most lines and airports are dark gray but some like Jakarta (CGK), Denpasar (DPS), and Narita (NRT) are redder and with a larger font size indicating importance.
November 2, 2025 at 12:05 PM
seav4f.bsky.social
#30DayMapChallenge 🗺️ Day 1️⃣: Points

Third year participating! 🎉

Here’s a map of all the cities and towns in the #Philippines 🇵🇭 that have Spanish names of saints because November 1st is All Saints’ Day. 🧵 1/4

en.wikipedia.org/wiki/All_Sai...
Dark grayscale map of the Philippines with 164 orange dots, all surrounded by a translucent orange halo, marking the location of the cities and towns that have Spanish names of saints
November 1, 2025 at 2:40 PM
seav4f.bsky.social
It took me longer than expected but I have finished editing an additional 50 photos meaning I have now completed doing perspective corrections on 450 photos of NHCP historical markers of the #Philippines 🇵🇭! 🎉 I hope to complete 500 by the end of 2025. 1/2
Mosaic of 450 photos of historical markers arranged in 25 columns of around 18 markers each
October 28, 2025 at 2:41 PM
seav4f.bsky.social
Today, #TimorLeste 🇹🇱 becomes the ASEAN’s 11th member when the 47th summit begins in Kuala Lumpur later. 🎉

To mark this occasion, I created a mock Philippine historical marker for the body owing to the #Philippines being a founding member and the bloc’s importance in modern Philippine history.
Photo of a mock NHCP historical marker with the following text: Samahan ng mga Bansa sa Timog-Silangang Asya (ASEAN) Bunga ng mga aral mula sa mga naunang samahan tulad ng Southeast Asia Treaty Organization (1954), Association of Southeast Asia (1961), at Maphilindo (1963), nagkita ang mga ministro ng ugnayang panlabas ng Pilipinas, Indonesya, Malaysia, Singapore, at Thailand noong 8 Agosto 1967 at nilagdaan ang Deklarasyong Bangkok na nagtatag sa Samahan ng mga Bansa sa Timog-Silangang Asya (ASEAN). Ginanap ang unang pagtitipon ng mga pinuno ng mga kasaping bansa sa Bali, Indonesya, Pebrero 1976. Lumawak ang samahan nang sumali ang Brunei (1984), Vietnam (1995), Laos at Myanmar (1997), Cambodia (1999), at Timor-Leste (2025).
October 25, 2025 at 11:14 PM
seav4f.bsky.social
One of the current outrageous U.S. news of the moment is the ongoing demolition of the White House East Wing to make way for the construction of Trump’s ostentatious state ballroom.

Anyway, I got curious and was not at all surprised to see that @openstreetmap.bsky.social is already updated. 1/2
Screenshot of the default OpenStreetMap style showing the east wing of the White House as an active construction zone and labeled as the “White House State Ballroom”
October 23, 2025 at 10:24 PM
seav4f.bsky.social
I went ahead and created a new image with the correct final character, uploaded it to @wikicommons.bsky.social, and updated almost Wikipedia references to the original wrong image.

commons.wikimedia.org/wiki/File:Wi...
October 20, 2025 at 3:11 AM
seav4f.bsky.social
#SilentSunday
Sepia-toned photo of a residential electrical transformer mounted on a pole an with a thick electrical wire passing in front of it
October 19, 2025 at 5:31 AM
seav4f.bsky.social
#SilentSunday #yosegi
Macro shot of a corner of a wooden box. The sides of the box are covered in a Japanese yosegi pattern consisting of geometric shapes of different colors of wood.
October 12, 2025 at 8:25 AM
seav4f.bsky.social
The street names in this part of Queens, New York City, seems deliberately confusing. 🤨🗺 #NYC #NewYorkCity
Street map of a portion of Queens, New York City, with street names like 60th Street, 60th Lane, 60th Place, 60th Road, 60th Drive, and 60th Avenue
October 10, 2025 at 7:58 AM
seav4f.bsky.social
This salted roasted nori snack is so yummy! 😋
Plastic packet of Himalaya pink salt roasted seasoned seaweed
October 10, 2025 at 6:31 AM
seav4f.bsky.social
Just noticed that the 30 themes for the 2025 #30DayMapChallenge are now up!

30daymapchallenge.com
#30DayMapChallenge 2025 Official categories for November 2025 1. Points 2. Lines 3. Polygons 4. Data: My Data 5. Earth 6. Dimensions 7. Accessibility 8. Urban 9. Analog 10. Air 11. Minimal map 12. Map from 2125 13. 10 minute map 14. Data: OpenStreetMap 15. Fire 16. Cell 17. A new tool 18. Out of this world 19. Projections 20. Water 21. Icons 22. Data challenge: Natural Earth 23. Process 24. Places and their names 25. Hexagons 26. Transport 27. Boundaries 28. Black 29. Raster 30. Makeover Create a map that suits the daily themes in November and post your map to social media using hashtag #30DayMapChallenge. More information from 30DayMapChallenge.com
October 6, 2025 at 7:48 AM
seav4f.bsky.social
With the impending arrival of Typhoon #OpongPH and the recent protests against corruption in government-funded flood control projects, the recent release of the 2025 World Risk Report, with its topical focus on flooding, is very timely. 1/2

weltrisikobericht.de/worldriskrep...
Infographic featuring a choropleth world map with UN member states colored according to their risk value in the 2025 World Risk Index. Below the map are three top ten lists: The 10 countries with the highest risk: 1. Philippines 2. India 3. Indonesia 4. Colombia 5. Mexico 6. Myanmar 7. Mozambique 8. Russian Federation 9. China 10. Pakistan The 10 countries with highest exposure 1. China 2. Mexico 3. Japan 4. Philippines 5. Indonesia 6. United States of America 7. India 8. Colombia 9. Australia 10. Russian Federation The 10 countries with highest vulnerability 1. Central African Republic 2. Somalia 3. Chad 4. South Sudan 5. Democratic Republic of Congo 6. Yemen 7. Niger 8. Ethiopia 9. Sudan 10. Mozambique
September 25, 2025 at 9:32 AM
seav4f.bsky.social
#SilentSunday #MacroPhotography
Black and white macro photo of a few drooping plant branches with long thin leaves. The branches and leaves are dark and nearly silhouetted against a very blurred light gray background.
September 14, 2025 at 9:01 AM