2011

The SPLINETYPE system variable controls the type of spline curve
approximated. Setting SPLINETYPE to 5 approximates a quadratic B-spline.
Setting SPLINETYPE to 6 approximates a cubic B-spline.
You can examine or change the fineness or coarseness of the spline
approximation with the SPLINESEGS system variable, or you can use AutoLISP
®
.
The default value is 8. If you set the value higher, a greater number of line
segments are drawn and the approximation to the ideal spline becomes more
precise. The generated spline occupies more space in the drawing file and
takes longer to generate.
If you set SPLINESEGS to a negative value, the program generates segments
using the absolute value of the setting and then applies a fit-type curve to
those segments. Fit-type curves use arcs as the approximating segments. Using
arcs yields a smoother generated curve when few segments are specified, but
the curve can take longer to generate.
To change the number of segments used to fit an existing spline, change
SPLINESEGS and respline the curve. You do not have to decurve it first.
Decurve
Removes extra vertices inserted by a fit or spline curve and straightens all
segments of the polyline. Retains tangent information assigned to the polyline
vertices for use in subsequent fit curve requests. If you edit a spline-fit polyline
with a command such as BREAK or TRIM, you cannot use the Decurve option.
Ltype Gen
Generates the linetype in a continuous pattern through the vertices of the
polyline. When turned off, this option generates the linetype starting and
ending with a dash at each vertex. Ltype Gen does not apply to polylines with
tapered segments.
2D Polyline Selection (PEDIT) | 1443