I guess I’m either being too literal or too cheeky with this map, but here we have a two-part image showing the Black Sea (colored in black with land areas in white) and the White Sea (colored in white with land areas in black) both drawn to the same scale (i.e., #UTM zone 37N).
All geographic data (coastlines, lakes, cities) come from #NaturalEarth’s 1:10m vectors, rendered in #QGIS , and combined in #GIMP.
#30DayMapChallenge Day 24: Black and white. Earthquakes from 1900 to 2017 around Antarctica. This is a backup idea—the first one took hours to render and I did not like the result, which was frustrating.
For this theme, I didn’t want to just turn the map 180° and then slap on a North arrow pointing down, or use a polar azimuthal projection.
So I finally settled on depicting an equirectangular world map where the #qibla, the direction towards #Mecca 🕌 where praying Muslims face, is all up, making the Kaaba 🕋 this map’s “north pole”. The countries are in a choropleth coloring where 100% Muslim ☪️ population is dark blue and 0% is yellow.
#30DayMapChallenge Day 23: 3D. Technically everything I've done so far is 3D—illuminated tubes, tiny illuminated spheres, big illuminated spheres, path traced shaded relief, 3D polygons. For unofficial #rayshader day, I decided to render the building heights of New York, New York.
So I’m back again with my favorite #CahillConcialdi map projection! I already had the code to reproject plate carrée source images and also Web Mercator tiles into my fave projection. I additionally had some code to composite 2 separate images based on the current day/night sides of the Earth. But I didn’t yet have the code to combine Web Mercator tiles with the day and night compositing. So I that’s what I did for Day 21’s theme!
#30DayMapChallenge Day 23: 3D part 2
Inspired by @hansakwast I did a quick experiment with the new #3DTile support in #QGIS 3.34. I used the #Cesium ion plugin and flew around our office in Copenhagen using the Google Photorealistic 3D Tiles. Impressive!
I still need to work on getting the rendering to be sharper. Could be my wifi at home.
Day 22: North is not always up #30DayMapChallenge The Fra Mauro map
This is a modern light interpretation of this map, centered not on the Arabian Peninsula but in Ukraine :-)
This is actually a tough category for me because for various reasons I am emphatically not an outdoors person! So this theme was something that I didn’t have any preconceived idea on what sort of map to create.
I finally decided to make a simple poster map of the ultras in the #Philippines 🇵🇭. Ultras are summits ⛰️ which have a topographic prominence over 1500 meters. There are over 1500 worldwide and 29 in the country.
#30DayMapChallenge Day 22: North is not always up. World time zones starting at the North Pole. North is in the center. Made with #QGIS. Data from #NaturalEarth.
#30DayMapChallenge Day 22: North is not always up. Tried a few ideas that didn't work. Then learned that NASA's Blue Marble image was originally "south pole-up" but they flipped it so people wouldn't flip out. I chose not to do that here.
Is it cheating if I had already planned in my head exactly what I would do to create a map in 5 minutes and also had a practice run? 😜
Anyway, here’s a map of the 201 barangays, grouped into 20 zones then 2 districts, of the city of #Pasay, in #MetroManila, #Philippines 🇵🇭 as mapped in #OpenStreetMap. I got the data from #OverpassTurbo, used text editing to add some styling, then into geojson.io from where I took a screenshot.
#30DayMapChallenge Day 21: Raster. 200 years of valley mapping. The valley of Alcântara in Lisbon, as it appears in several maps from 1806 onward, together with a current LiDAR-captured point representation.
For Day 1 of #30DayMapChallenge, I mapped 9 of the schools for Black children in northern Delaware when Delaware--there were more than 80 throughout the state when the state enforced racial segregation in schools. #rstats
For Day 14 of #30DayMapChallenge, my map of Europe shows that western European countries have greater vaccination rates for #COVID19--especially Spain and Portugal. #ourworldindata
For this map, I found out how to use a bounding box, which results in Iceland being sliced in two. Apologies.
Students of the Data Visualization subject at UCA are participating in the #30daymapchallenge. Each day, a map created by a different student will be published.
Day 1: Points
Author: Altagracia Villegas
Touristic places of Guatemala & Mountains of El Salvador
Data 📁: MapCruzin/GADM
Tool ⚙️: #QGIS :qgis: