Generalizing a vector layer
Generalizing geometry, also known as simplifying, removes points from a vector layer to reduce the space required to store the data. Otherwise, simplification may result in small but acceptable changes within a specified tolerance.
Getting ready
For this recipe, we will use a boundary file for the state of Mississippi, which you can download from the following URL:
https://github.com/GeospatialPython/Learn/raw/master/Mississippi.zip
Extract the zipped shapefile to a directory named /qgis_data/ms
.
How to do it...
Generalizing is native to QGIS, but we will access it in PyQGIS through the Processing Toolbox using the qgis:simplifygeometries
algorithm.
- Start QGIS.
- From the Plugins menu, select Python Console.
- Import the
processing ...
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