The point is added, and the spline is refitted through the new set of points.
selected point
new point
result
Close/Open
If the selected spline is closed, the Close option is replaced by the Open option.
Close
Closes an open spline and makes it tangent continuous (smooth) at its
endpoints. If the spline’s start point and endpoint are the same, this option
makes the spline tangent continuous at both points.
open spline
closed spline
tangent
continuity
Open
Opens a closed spline. If the spline’s start point and endpoint were the same
before you used the Close option to make it tangent continuous at both
points, the Open option returns the spline to its original state. The start
point and endpoint remain the same but lose their tangent continuity
(smoothness).
If the spline was open (its start point and endpoint were not the same)
before you used the Close option to make it tangent continuous where the
start point and endpoint meet, this option returns the spline to its original
open state and removes tangent continuity.
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Summary of Contents for AUTOCAD 2006
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