I have a layer consisting of aprox. 20k lines
What i want to do:
In Qgis I want to be able to enter a start point and a end point. Preferably with street addresses and in second hand with coordinates. I then want a calculation of what lines that would represent the shortest path between these points. And then be able to export the result. The start and endpoint are usually not along the lines. I've tried "Shortest Path" but i get an error "There is no route from start point to end point."
It is not roads and roads has nothing to do with the question.