How to create multiple ring buffers in QGIS including dashed line symbology and stacked labels

[@thatmikatho8136]

Man that trick at the beginning is super valuable for me. I always struggled with dashed lines for polygons because often borders are the same. Thank you very much

[@antoniolocandro]

And I almost didn't upload this video as I thought people wouldn't find any value. Thanks for the words, need to probably go do more videos!

[@iulianiordache8994]

great stuff, man

[@antoniolocandro]

glad that you have found it useful

[@iulianiordache8994]

I was wandering around until I found this.

[@Iwantbelieve]

Thanks! What if I want show something else than distance in label values? for example with this airport case a noise (for example decibel value) ?

[@danielerinaldi3123]

Thanks Antonio for this useful video, well explained! I use isodistance rings to approximate accessibility times from a service center. Instead of the entire ring, in some cases, it would be more appropriate to represent only a portion / angle of the ring (as a sort of "fan"). Through the geometry generator (or other tool), would you know how it could be done?

[@antoniolocandro]

Thanks! I think it would be possible but could you provide me an example to see the final expected result. I think in principle you could draw the polygon and intersect the rings, that would give you a snapshot and if you wanted some more dynamic you could do the same using geometry generator options

[@danielerinaldi3123]

@@antoniolocandro thanks for the suggestion, I'll definitely try! My problem is that my study areas are often mountain and border areas. Accessibility is therefore often naturally constrained only in a few directions. I overlap the isodistance rings with the road isochronous areas, but I don't need the whole isodistance ring (... which crosses the mountains), just the "fan" in the direction of the isochronous towards the valley.

[@antoniolocandro]

@@danielerinaldi3123 if I understand correctly do you want just the blue line like here ibb.co/GHVxKFL

[@waiotahi]

Yes, ive used the mask for labels in contours in the past but i could never seem to be able to keep them when exporting to PDF

[@antoniolocandro]

Let me check on that and will do a video on exporting to PDF! I had some issues before and it all depends on the export options

[@melanieveenstra4586]

Great video! :) Sadly Im getting an error when I tried to intersect the exterior ring to the created line. The labels disappeared. My preview says NULL. Do you know how to solve this?

[@antoniolocandro]

Is everything in the same coordinate system?