About region-cell intersections
The green mass in the center of this screenshot is outlined in black, and is an example of a region. Whereas the analysis hatching in red marks a cell.
Exports for analyses by Regions by Cells (refer to About exporting analyses) use the area where the two coincide.
See also
ABC and NASC
About analysis variables
About region-ping intersections
About surface-ping intersections
PRC_ABC and PRC_NASC
Exporting region-cell intersection analyses