On 2011年03月31日 10:16, Ben Abbott wrote: > On Mar 30, 2011, at 9:53 PM, Daniel J Sebald wrote: > >> On 03/30/2011 08:45 PM, welkin zzp wrote: >>> Hi, >>> When I close a figure window, I observed that the gnuplot and >>> gnuplot_x11 processes were always in the system,but didn't work, until >>> quit octave . I didn't known if it's a memory leak ,but I have to >>> frequently quit octave after having close few figure windows. The >>> version of octave is 3.4.0 on ubuntu systerm. >> Welkin, >> >> This topic might be more appropriate for the maintainers list, so I'm cc'ing >> there. >> >> From what I recall, Octave currently launches a separate instance of >> gnuplot for each figure. (Because gnuplot only saves the data/state for the >> most current plot.) But I'm not sure if what you describe is the intended >> behavior or not, i.e., that gnuplot hangs around in case Octave needs to use >> it again. If not, perhaps you could give a more detailed description with >> examples. Maybe the behavior can be improved. >> >> Dan > Welkin, > > When you "close" a figure, do you type ... > > close (hfig) > > .... or do you close the figure window using the mouse? > > If the first, then the gnuplot session associated with the figure should > terminate. However, for the latter, the gnuplot session remains open. Since > there is no synchronous communication from gnuplot to octave, there is no > method for Octave to become aware that the figure has been closed. > > If this functionality is important for you, please try using the fltk > backend. This can be turned on by ... > > graphics_toolkit fltk > > Ben > > I have tested with the first method just now,and you are right. At first I close the figure using the mouse, may be I have to notice that from now. By the way, is there toolbar or menu on the figure to manipulate the graphics ? I think this may be more convenience . Thanks.
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