How to join maximum values from a polygons layer to other gridded polygons layer in QGIS?

Question

I have two overlapping SHPs. One is with two noncontinous polygons - values 0 is blue and 1 is green. Now I have 9 meters grid for the same area, but I need to "fill" the grid with values from previsous shapefile - not by averaged, but by maximum value (it means when one small polygon with value 1 is underlaying the grid, then the whole grid cell has new value 1). Below is the picture. I'm afraid all this spatial join tools does it only by averaged values.

score 1 · Accepted Answer · answered Apr 21 '20 at 10:11

1

Look at the answer here: How to get the "Join attributes by location" features on a QGIS Mac version . Use the Join by Location (Summary) tool . you can find it in the Processing Toolbox.

answered Apr 21 '20 at 10:11

Ofir

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score 0 · Answer 2 · answered Apr 21 '20 at 12:34

0

First create a virtual field (using Field Calculator), use the tools in there to populate the virtual field with "Max(##)" values. The do a spatial join attributes.

answered Apr 21 '20 at 12:34

BJW

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How to join maximum values from a polygons layer to other gridded polygons layer in QGIS?

2 Answers2