fosm shouldn’t really be a thing still. It only exists because some people didn’t like the terms of the licence change. Guided by the principles of maximum free software drama, they forked OSM (it was CC-BY-SA at the time) and created fosm.
Thing is, the licence change was in 2012. Most of the fosm data in my neighbourhood looks untouched since then. It’s a fork that’s, um, forked. I remember meeting someone who was so convinced that OSM was going to fail with the new licence, they were saying stuff like “fosm’s gonna drown you guys!”
In the words of Drive-by abuser: 🛵📢 fosm, yeah? Why not, though, eh? It’s your life, innit?
How and where and when a Scottish guy whose family has lived near Glasgowforever found love far away and now moves slowly back & forward along Eglinton Avenue East.
The Gulf Stream? It’s the warm waters of the Mississippi-Missouri warming the west coast of Scotland …
Not shown/drawn due to lack of time: the flotilla of water biscuits transporting gullible folks up the River Clyde …
In a world of filter bubbles and fake news the importance of understanding how we know what we know and where our information/knowledge comes from is greater than ever. We can use mapping to help us understand these invisible structures that control parts of lives and reveal the ways our perceptions are shaped.
In this hands-on mapping workshop we will create maps of personal knowledge (e.g. personal itineraries, common perceptions, fears, etc.). We will ask: how do I map my perception of the world (e.g. through news media or walking)? Participants will apprehend “their state of our knowledge of the world” on a particular subject as well as create representations which bridge the real and the imaginary.
Philippe Rekacewicz is a cartographer and information designer. After completing his training as a geographer at the University Paris 1 Panthéon-Sorbonne, he worked from 1988 to 2014 as a permanent staff for the monthly journal Le Monde Diplomatique. He concurrently directed, from 1996 to 2008, the Norwegian cartographic unity of the United Nations Programme for Environment (UNEP), the GRID-Arendal. A specialist in Geopolitics and International Relations, he addresses especially topics linked to migrations, refugees and populations’ forced displacements, as well as frontiers. He works at present on several socio-cartographic projects (public and private spaces, perception and representation of frontiers) and explores the links between cartography, art and politics, like the art’s contributions on maps’ production and the political uses of maps as objects ofpropaganda and manipulation. He also leads a research on the “new cartographic writings” and the emergency of radical, critical and experimental cartographies. Since 2006, he attends project of artistic mappings and political art in several European countries. He is associate researcher at the departement of Anthropology of the University of Helsinki (programme Crosslocation – Trade, Transit and Transport). He is the current editor of the research blog on mapping and visualizing Visionscarto http://visionscarto.net/
Experimental Cartography: Mapping Knowledge and Perceptions of Our Worlds was hosted by the public visualization lab at OCAD U in the evening of 2018-09-19.
Update: thanks to André, this works! See the updated ogr2ogr line.
All I really wanted to do is make a map like this:
This is an Azimuthal Equidistant projection, with me at the centre (of course) and the rest of the world spread out in a fan by distance and bearing. It’s somewhat surprising to find that South Africa is almost directly east of Toronto, and New Zealand to the southwest.
If I had a directional antenna and a rotor, this map would show me where I would have to point the antenna to contact that part of the world. I can’t rotate my dipole (unless I commit some unauthorized local plate tectonics) so I’m stuck with where my antenna transmits and receives best.
The above map was made with AZ_PROJ, a PostScript program of some complexity for plotting world maps for radio use. The instructions for installing and running AZ_PROJ are complex and slightly dated. I got the above output running it through Ghostscript like this:
The format of the az_ini.ps file is complex, and I’m glad I’m an old PS hacker to be able to make head or tail of it.
For all its user-hostility, AZ_PROJ is powerful. Here’s a version of the map I wanted all along:
This shows my furthest QSO in each of the 16 compass directions. (You might note that North is empty: my furthest contact in that direction is some 13km away, whether by lack of folks in that sector or dodginess of my antenna.) Contrast that with my Mercator QSO map, and you’ll see that Azimuthal Equidistant is a much better projection for this application.
To show how radically different the world looks to different people, here’s the world according to my mate Rob in Hamilton, NZ:
I’d been trying to use OGR to transform arbitrary shapefiles into this projection. For maps entirely contained within the same hemisphere (so having extent less than ±90° in any cardinal direction), this works:
The lat_0 and lon_0 parameters are just where you want the centre of the map to be. Things get a bit odd if you try to plot the whole world:
The antipodes get plotted underneath, and everything looks messed up. I may have to take my question to GIS – Stack Exchange to see if I can find an answer. Still, for all its wrongness, you can make something pretty, like my whole world Maidenhead locator grid projected this way turns into a rose: