I'm plotting a bunch of curves with
and I noticed that curves that should join up do not. It's like the end of the plotted curves don't necessarily use the limit value of the parameter. I noticed that this improved for some curves when I increased PlotPoints (if I remember the option name correctly).
Is this a bug? Would this be a problem with ParametricPlot3D or Show? Any idea how to fix this?
Oh and the gap is visible without zooming in so it's not a precision issue, one or both segments are simply cut short, but they are "on track".