Hide labels when are covered from a polygon

Question

I need to mask all labels from a layer when they are outside a covering vector. On the image below there are contours; the lines are visible only if they intersects a polygon from a mask layer that is excluded with a filter. I'm be able to hide the lines that doesn't intersects the polygon, but I can't do the same with the labels.

I'm using QGIS 3.22, below the filter managed from atlas.

Answer 1

You should to clip your polygon by mask before show the labels.

You can do that using this tools:

clip vector by mask layer

enter image description here