New answers tagged vector
1
vote
Find majority land use class within polygon
This answer isn't based on QGIS, but I solved my issue in R:
library(sf)
library(dplyr)
library(tidyverse)
wd <- "path/"
area_data <- st_read(paste0(wd, "wards_2021.geojson"...
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0
votes
More efficient way to use Symmetrical Difference tool for layer with many features
In addition to the other excellent ideas presented,I would recommend that you run the Fix Geometries tool on both of the input layers. This tool repairs and/or removes any geometry errors which would ...
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More efficient way to use Symmetrical Difference tool for layer with many features
you're going about it backwards. Most times when you convert a raster to a shapefile you meaninglessly large number of vertices (at least until you do simplification on the boundaries) and often an ...
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1
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More efficient way to use Symmetrical Difference tool for layer with many features
Having large complex geometries will slow down processing.
Try:
Multipart To Singleparts
Subdivide
3. And Create Spatial Index
On both input layers
- 76.2k
3
votes
Accepted
More efficient way to use Symmetrical Difference tool for layer with many features
A typical way to solve this is to reduce the size and complexity of the input geometries by first doing an intersection of them with a grid-layer. This can give an enormous difference in processing ...
- 3,804
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QGIS Identify multiple intersecting vectors
I've created a model with two input parameter:
Multiple input. Which allows you to select the 30+ vector layers
Vector layer, for your drawn layer
The model merges all 30+ layer into one (they all ...
- 76.2k
0
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QGIS Identify multiple intersecting vectors
The spatial join tool will transfer the attributes of your tree planting constraints to the attribute table of your polygons if and only if those vectors overlap. Here is a tutorial on spatial ...
- 10.2k
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