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306 Chapter 5: Creating Geometry
Original and outlined splines
Note: Normally, if using the spinner, you must first select
a spline before using Outline. If, however, the spline object
contains only one spline, it is automatically selected for the
outlining process.
Center—When off (default), the original spline
remains stationary and the outline is offset on
one side only to t he distance specified by Outline
Width. When Center is on, the original spline and
the outline move away from an invisible center line
to the distance specified by Outline Width.
B oolean—Combines two closed polygons by
performinga2DBooleanoperationthatalters
the first spline you select, and deletes the second
one. Select the first spline, then click the Bo olean
buttonandthedesiredoperation,andthenselect
the second spline.
Note: 2D Booleans only work on 2D splines that
are in t he s ame plane.
There are three Boolean operations:
•
Union—Combines two overlapping splines
into a single spline, in which the overlapping
port ion is removed, leaving non-overlapping
portionsofthetwosplinesasasinglespline.