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I am using QGIS 3.6 on windows 10.

I am trying to work out a way of reporting on the distances to polygon features (ecological sites) located along a river network. I have extracted the shortest path along a river network, from a study area to the river's mouth, using the QNEAT3 Plugin. I have tried using v.distance to calculate the distance to ecological sites that the shortest path intersects but it appears to only provide the distance to the nearest feature and I would like distances to all features intersected.

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  • Did you search for closes distance or other key-words? You will find some on this forum, that can inspire you to a sollution. Eg. gis.stackexchange.com/a/280787/7849
    – PieterB
    Commented Apr 17, 2019 at 8:43
  • Thanks for getting back Pieter. I had viewed several solutions all of which appeared to indicate that the distances had to be to points. I was hoping that it may be possible to find the distances to intersections with polygons, so though I would put the question out there.
    – ImpactGIS
    Commented Apr 17, 2019 at 18:08
  • are you looking for the (minimum) distance between a linestring (river) and a polygon (site) (if they intersect, distance is 0)? or the distance to the intersection between them, along the linestring (from the start point)? or even the distance along the linestring to the point where a polygon is closest to it?
    – geozelot
    Commented Apr 18, 2019 at 7:27
  • Hi @ThingamaBob, apologies for not responding earlier, didn't see you response come in. I am seeking the distance from a point on a linestring, along the linestring ('downstream' from the point) to each and every point of intersection between the linestring and a polygon layer. I would then be processing the results to find the shortest distance to each polygon along the linestring.
    – ImpactGIS
    Commented Aug 21, 2019 at 11:18

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