Q: The Cut and Fill operation allows me to acquire the cut area and fill area. How can I get the region object for the cut and fill areas?

A: Firstly, perform the cut and fill operation to get obtain the result dataset A. After that, perform the raster algebraic operation on the grid dataset A to assign the value of 1 to cells with grid values greater than or equal to 0, and assign the value of -1 to cells with the grid values less than 0. Thus, you can obtain the grid dataset B. Convert the grid dataset B into a vector dataset, in which areas with the value of 1 indicates the cut areas and areas with the value of -1 indicates the filled areas.