Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
I have polygons intersection in single layer. I want polygon in yellow frame and use polygon intersection to calculate area , how to do this?
In the processing toolbox, there is a tool named Polygon self-intersection that can be used to extract the intersection polygon in the same layer:
Using the tool:
After running the tool:
Then you can calculate the area.
I am using QGIS 3.4.2
Required, but never shown