I have a grid of 1 km points and a separate group of points representing RTK stations. (See image 1)

I want to create a 3rd value for the grid points that is proportional to the nearest reference station. Something like a mobile coverage map.

The problem is that I don't know how to separate the grid points by closest station and after that don't know how to include the distance between points in calculations. Is a grid of points even the best way to do this, or should I try to create a raster layer?

Example of stations within the grid

  • 6
    Just run join attributes by nearest.
    – Erik
    Sep 23, 2022 at 14:08

1 Answer 1


For each point of the grid layer, calculate the distance to the closest point of the layer named RTK with this expression:


Point label and color of points based on the expression above: enter image description here

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