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I have a polygon which I want to split using overlapping polygons in order to create 3 polygons (with the original attributes) How can i achieve it using R ?

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    probably sf::st_intersection
    – mdsumner
    May 6, 2020 at 3:28
  • I've tried st_intersection but it doesn't divide the polygon. Instead it generates the same geometry everytime it overlaps the other polygons (in this case I ended up with 5 polygons)
    – Sofia R
    May 6, 2020 at 20:47
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    Can you put together a reprex, I think your q is fair but it's hard to do this stuff without an example. Any chance you can subset out the relevant rows, save as rds or write to gpkg and share?
    – mdsumner
    May 6, 2020 at 21:50

1 Answer 1

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For sure you just need to do an st_intersection like:

st_intersection(pol1, pol2)

If you get a 5 features polygon is because your pol1 is overlaping five "colored" polygons. If you are looking for 3 polygon result, you should just dissolve blue/green polygons and yellow/pinky ones bufore. You can do it by assign them a unique ID, group_by that ID and summarize them.

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