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- Inverting Polygons using QGIS? 3 answers
I need to create a mask to cover the rest of the world outside of a single city. (Here are Boston boundaries to use as reference for the boundaries of a city).
I've been told by support to open those boundaries "create a new geospatial file that would be made up of a rectangle that covers the whole earth with a hole in the shape of your city in the middle."
From there, I need to upload that file to Mapbox Studio and add it to cover the rest of the world outside of my city. I'm looking to style OpenStreetMap in Mapbox afterwards for that city. So this is a workaround for not being able to edit a single city in Mapbox Studio.
How would I create this mask?