Using Booleans to Create Complex Shapes

Use the Boolean commands to add, subtract, and intersect
shapes. This is useful, for example, to cut a hole into a deck to make room for
a hot tub.
These commands only work with shape-based objects, such as
decks and patios. They do not work with non shape-based objects such as
accessories, nor do they work with shapes that cannot be closed such as fencing
and hedges.
To use these commands, you'll need to select exactly two
objects. The selection order is important. The first object you select is
the object you want to change. The second object is the one with the
shape you want to use to make the change.
The second object is only used for its shape – the actual
type of object does not matter. For example, when cutting a circular hole in a
deck, the object with the circular shape can be any type, such as a patio, fill
region, deck, and so forth. Important: The second object will be deleted,
so be sure to copy it first if you want to keep it.
Note: The Add, Subtract, and Intersect Shape buttons
are on the Main toolbar tab.
To add shapes:
1. Select the first
object by clicking to select it. This is the object you want to change.
2. Select the second
object (hold Shift while clicking to add to the selection). This is the
object with the shape you want to combine with the first object.
3. Click the Add
Shape button, or select Edit > Shape > Boolean Add.
To subtract shapes:
1. Select the first
object by clicking to select it. This is the object you want to change.
2. Select the second
object (hold Shift while clicking to add to the selection). This is the
object with the shape you want to subtract from the first object.
3. Click the
Subtract Shape button, or select Edit > Shape > Boolean
Subtract.
To intersect shapes:
1. Select the first
object by clicking to select it. This is the object you want to change.
2. Select the second
object (hold Shift while clicking to add to the selection). This is the
object with the shape you want to intersect with the first object.
3. Click the
Intersect Shape button, or select Edit > Shape > Boolean
Intersect.
The following example shows four copies of a square
deck and round patio.

The Add, Subtract, and Intersect commands were used on
three of the copies. The results are shown below.

See also:
Selecting Objects Undoing and Redoing Changes Saving and Loading
Shapes
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