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9 votes

Making buffer around crossing point on lines intersection in QGIS

You can use either of the following expressions - Either as a Geometry Generator symbol layer (on Layer B) or by using the Geometry by Expression geoprocessing tool if you wish to create a new layer ...
Matt's user avatar
  • 17.3k
5 votes

Reasons of slow intersection of two GeoDataFrames using Python

1. Why is it so much slower The spatial index works as follows: it ~stores the bboxes of the geometries of a layer in an efficient tree structure so it can be very quickly determined if a given bbox ...
Pieter's user avatar
  • 2,729
2 votes
Accepted

turf intersect doesn't capture all intersections

Problem is in the way you construct poly2 polygon. When you construct GeoJSON polygon from coordinates, first coordinate ring describes actual polygon, but all next rings describe holes in the polygon....
TomazicM's user avatar
  • 26k

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