David, I solved the problem of not generating enough line segments with the
SPLINESEGS variable. But in the process, I discovered another, much more
interesting problem. If I set SPLINESEGS too high, AutoCAD will plot the
drawing with a "noisey" line. From a distance, the splines appear fine in
the plot. But up close, the vertices fall randomly within a thin "grey
zone", instead of staying right along the curve. In other words, the line
zigs and zags rather than smoothly following the spline path.
Is there some kind of uncertainty factor built into the spline function
that produces this "noise" when they are plotted at very high resolutions?
Try it yourself: spline a pline with SPLINESEGS set above 20, plot it to a
DXB file using the ADI plotter, import the file and zoom up on the line.
Is there "Chaos" in AutoCAD???
Thanks, Donald Newlands