Inverted filling of polygon

Question

Is there way to color on the outside of polygons like this? I have tried to use the inverted polygon style in QGIS but it didn't work.

ahmadhanb · Accepted Answer

I am not sure what was going wrong with inverted polygon style, but here is a simple polygon to show you how to do it:

Go to Layer Properties -> Style -> Change Single Symbol to Inverted polygons

Notice I used the same color in your question because you want to color the outside polygon with this specific color.
Here is the output:

Ed Rollason · Answer

I'm not aware of another stylistic way to achieve that effect (if inverted pgons is not working), however, you could download the 'mask' plugin (https://plugins.qgis.org/plugins/mask/) which will automatically create an exterior mask around a selected polygon. It creates a new memory polygon layer that you can style however you want.

Answered by Ed Rollason on January 27, 2021

Taras · Answer

Despite a brilliant answer from @ahmadhanb, I would like to share an idea of how to invert a filling of polygon with Geometry Generator.
Let's assume that there is a polygon, shown on the Picture beyond.

Use the following setting for the Geometry generator

and get the result, see image below

Inverted filling of polygon

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