[Qgis-user] Finding relationships between different types and subjects of shape files

[chris hermansen]

Dave and list,

On Sun, Jun 14, 2026, 20:57 Dave Kabay via QGIS-User <
qgis-user at lists.osgeo.org> wrote:

> Hi
>
> Being moderately new to QGIS, I am  just seeing if there are Plugins that
> can find relationships (e.g.  say inside, x meters away etc. )between
> different types of shape files (e.g. point, line and polygon shape files)
>  and different subject shape files e.g. say a particular class of
> Observation( point shape files) ,say  rainfall isohyets, depth to ground
> water lines (line shape files) and say soil types, depth to ground water
> depth (polygon shape files.
>
>
>
> Any help would be appreciated.  An example of a particular question I want
> to look at is Do a particular species of fungi occur in what soil type(e.g.
> sandy 4 type)  in a particular zone of geology (Bigger shape file) or
>
> How far from an observation (point) is from the boundary of 2 different
> particular adjacent soil types(polygon shape files) in which the
> observation  is in 1 of them
>

What you are trying to do is loosely termed "spatial analysis" and there
are many tutorials on the topic available online.

Operations like "intersection" and "overlap" relate to the kinds of queries
you want to carry out. Sometimes creating buffers around spatial objects is
a part of that process.

You can start here:

 https://qgis.org/resources/hub/

Or use your favourite search engine to explore things like "spatial
analysis tutorials".

>
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