2012

Table Of Contents
The elliptical arc is drawn counterclockwise between the start point and
endpoint.
Quick Reference
Commands
ELLIPSE
Creates an ellipse or an elliptical arc.
System Variables
ANGDIR
Sets the direction of positive angles.
PELLIPSE
Controls the ellipse type created with ELLIPSE.
Draw Splines
A spline is a smooth curve that passes through or near a set of points that
influence the shape of the curve.
SPLINE and BLEND create curves called nonuniform rational B-splines (NURBS),
referred to as splines for simplicity.
By default, a spline is a series of blended curve segments of degree 3 (also
called cubic) polynomials. Cubic splines are the most common, and mimic
the splines that are created manually using flexible strips that are shaped by
weights at data points.
In the following example, SPLINE was used to create the highlighted boundary
of the concrete walkway.
Draw Splines | 723