How would I go about snapping polygons added within one shapefile layer to a larger bounding polygon in a different shapefile layer? For example if I have a layer with the bounding coastlines of a continent mapped out, how would I go about adding a political map layer that the edges of the political map snap to the edges of the coast?

It seems almost like the inverse of the "Avoid Overlap" Snap setting.


1 Answer 1


This you can achieve with the tracing tool, which is part of the snapping toolbar:

enter image description here

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.