The Boundary | New Boundaries | Intersect
Polygons command 
creates a new boundary
from two or more intersecting boundaries. The area that intersects all
selected boundaries is the new area. The original areas outside of the
intersecting portion are removed. You can apply a unique line style to
the new traced boundary for emphasis, and assign a primary
ID to the new area so you can link it to data. If none of the selected
boundaries overlap, a new boundary is not created.
Use the Intersect Areas command to create a new
area (green on right) from intersecting areas (left).
To use the Intersect Polygons command:
1. Select all the areas that define the boundary of overlapping areas.
2. Choose the Boundary | New Boundaries | Intersect Polygons command.
3. Select options for the original areas and lakes in the Intersect Areas dialog.
4. Click the OK button and the intersecting area is created.
Select whether to keep original areas and/or
lakes in the Intersect Areas dialog.
When Keep original areas is activated, the intersection of the selected areas is traced to create a new area while leaving the original selected areas unchanged. When Keep original areas is NOT activated, the areas are used to create a new area, and the original group is deleted.
When Keep inner lakes is activated, inner boundaries, called lakes, are included in the new traced boundary. When Keep inner lakes is not activated, inner boundaries, called lakes, are removed from the new traced boundary.
See Also