Polygon classification tool

the polygon classification tool is an alternative to the brush tools it can be used to quickly classify large areas which are easily encapsulated by a polygon in the 3d view, such as roads or curbs drawing process select a class draw a closed polygon (ideally in birds eye view) if you accidentally misplace a point you can undo with ctrl+z press enter to complete the drawing process press enter to apply the classification to all points inside the polygon from the given 3d camera view