QgsGeometry geometry = feature.geometry(); QgsPoint centroid = geometry.centroid();
QgsGeometry geom1 = feature1.geometry(); QgsGeometry geom2 = feature2.geometry(); if(geom1.intersects(geom2)){ //do something if geometries intersect }This code checks whether the geometries of two features intersect using the `intersects()` method of the `QgsGeometry` class. The package library for QgsFeature geometry is the QGIS API, which is implemented in C++.