twinkle(): allow to process a vector of handles
Reported by Samuel GOUGEON (@sgougeon)
BUG DESCRIPTION:
----------------
Presently, when a vector of handles is passed, only the first graphical component is twinkled.
Twinkling several components together may be useful in various situations, for instance
when selecting several components among a children vector, when a polyline curve and some
xstring related to it must be twinkled (as with contour lines), etc.
Making twinkle() able to blink several hierarchically independent objects would be useful.
ERROR LOG:
----------
None. only one object is blinked.
HOW TO REPRODUCE THE BUG:
-------------------------
clf
plot()
c = gca().children.children(1:10);
twinkle(c) // => Only c(1) is blinked