QGIS Calculate Overlapping Areas & Topology

Описание к видео QGIS Calculate Overlapping Areas & Topology

In this video we use a 500 meter buffer for watering holes and determine the percentage for areas that overlap. We also have a brief look at the Topology Checker plugin.

timestamps
1:17 Start of tutorial
1:43 Define relevant features with the Query Builder
2:37 Buffering waterholes with 500m
3:53 Calculating the area for buffers
4:41 Polygon self intersection
6:00 Update an existing area field
6:32 Calculate areas for new features
6:59 Calculate percentage overlaps
9:14 Statistical summary
10:20 Topology Checker

QGIS - https://qgis.org
Spatial Modelling Solutions - https://smsgis.co.za

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