#Null Island I couldn't find a Null Island GeoJSON file, so I made one.
Here's my recipe:
- Start with the SVG from GNIP
- Use Illustrator & Photoshop to remove the decorations and create a cleaned outline
- Export to SVG
- Churn into a GeoJSON file with your text editor of choice
- Use geojson.io to generate a Shapefile
- Use ArcGIS Desktop to reposition at 0,0 and scale to about 6,400 hectares
- Use Ben Balter's simple instructions to convert back to GeoJSON with GDAL
- Use Excel and the text editor to tidy coordinates to 5 decimal places, or about 1m accuracy - huge overkill considering everything else :)
#####Why this way? Yeah, I know, I could have just exported from Illustrator into ArcGIS Desktop via EPS, but I didn't this time. Here's a project where I did go that way. In fact, this non-EPS way was definitely not as easy, but I was playing with a few approaches and this is what shook out.
I would also have liked to have done the shrink to 5 decimal places using regular expressions, but I had a soccer match to watch.
#####Big Thanks Big thanks to @gnip and @benbalter for the original graphics and super-simple GDAL instructions.