nsor region is always regular, the output data is also indexed differently compared to using a Cartesian or binary sensor mask. In 2D, the sensor data is indexed <code>sensor_data(x_index, y_index, time_index)</code> (similarly in 1D and 3D). This makes it particularly useful for recording the results of a simulation in a plane or line without needing to reshape the output data. If the regions are overlapping, the overlapped data is returned as part of both sensor regions. An example of querying the size of