I am fairly new to QGIS and just now encountered my first obstacle that i can't solve simply from checking questions already posted here.
For my current study project i would like to highlight the lines along which two different polygons meet. I understand that this can probably be done with vector -> geometry, ->analysis or making use of buffers with fixed distances. However, i just cant seem to find the right option.
Here's my project with two different layers consisting of the clc 10 dataset. Basically, I would like to have lines drawn where the red and green polygons are directly adjacent to another. These lines would ideally be in a new layer.
To give you an idea of what im looking for: In this example green lines are drawn wherever two different layers are directly adjacent to each other.