2011

NOTE You can make a new boundary set to limit the objects used to
determine the boundary.
To combine regions by adding
1 Click Home tab ➤ Solid Editing panel ➤ Union.
2 Select one region for the union.
3 Select another region.
You can select regions to unite in any order.
4 Continue selecting regions or press Enter to end the command.
The command converts the selected regions to a new combined region.
To combine regions by subtracting
1 Click Home tab ➤ Solid Editing panel ➤ Subtract.
2 Select one or more regions from which to subtract and press Enter.
3 Select the region to subtract and press Enter.
The areas of the second regions you selected are subtracted from the areas
of the first regions.
To combine regions by finding intersections
1 Click Home tab ➤ Solid Editing panel ➤ Intersect.
2 Select one region of the intersection.
3 Select another intersecting region.
You can select regions in any order to find their intersection.
4 Continue selecting regions or press Enter to end the command.
The command converts the selected regions to a new region defined by
the intersection of the selected regions.
690 | Chapter 18 Draw Geometric Objects