R SF Clip – Clipping a Layer with a Shape from Another Layer in SF

cliprsf

I would like to get the greens polygons that intersects (or overlapsed) the red outlined polygon (see image below).

I tried sf::st_intersection() but the polygon in yellow (yes that just one polygon) was not taken in account.

In QGIS, the clip (cut) tool did exactly what I wanted. Is there a tool similar in R to cut a layer using another layer ?

Tried to use sf::st_overlaps() but the returned matrix was biggest than my feature table. sf::st_crops() does not fit either as I want to cut in a specific shape.

Best Answer

sf::st_intersection() will work with the last version of sf (0.7-3). I don't know why it was not working in the previous version.

Related Solutions

[GIS] Removing points which fall outside of selected polygons using QGIS

Try to select the point withing the yellow polygon feature using Select by location tool from Vector -> Research tools -> Select by location

In the Select feature in: select the point feature
Select the polygon feature in the that intersect features in
If the points located within selected polygon features (not as separate polygon layer), then you need to check Only selected feature located at the bottom
Then save the selected point as new shapefile from Right-click the point layer -> Save as -> Check save only selected features

You need to make sure that both point and polygon shapefiles have the same CRS.

PostGIS Spatial Query – Spatial Query with Clip in PostGIS

This is what you're looking for:

SELECT ST_Intersection(t1.geom, t2.geom)
FROM t1 JOIN t2 ON ST_Intersects(t1.geom, t2.geom)

For more info: https://postgis.net/docs/ST_Intersection.html

Best Answer

Related Solutions

[GIS] Removing points which fall outside of selected polygons using QGIS

PostGIS Spatial Query – Spatial Query with Clip in PostGIS

Related Question