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2013年8月23日 Kari Aliranta <kar...@st...>:
> 23.08.2013 20:57, Eric Firing kirjoitti:
> Thank you. I'd like to stick to pure OO, but I'm using some
> third party open source code that uses pylab extensively for
> rather large and interactive (as in "includes scrollbars,
> buttons and several types of events") figures. The code
> works nicely in itself, and has an option to return the
> figure object without actually showing the plot.
>
> I was hoping to take the returned figure as an object and
> reset the related state environment information, effectively
> "smuggling" the created figure out of the state environment.
> If there is a simple way to do this in Matplotlib, that
> would be quite useful.
Does pyplot.close(fig) not do what you need?
Goyo

> def updateGraph(self,data):
> datacut = data[10000 - self.DiagrammBreite.get_value():10000]
> self.line.set_ydata(datacut)
> self.line.set_xdata(numpy.arange(0, datacut.size, 1))
> self.fig.canvas.draw()
If nothing else, it appears that the plot's x data are constant. Have
you tried just setting it once when you create self.line?
Skip

Hello,
I want a real-time animation. There is no loop in the animation because
the data comes from the real world (AD data). I wrote this class:
class Eigendiagramm(object):
 def __init__(self,daten):
 self.DiagrammBreite = gtk.Adjustment(100,20,10000,1,10,10)
 self.DiagrammBreiteWidget = gtk.VScale(self.DiagrammBreite)
 self.DiagrammBreiteWidget.connect("value_changed",
self.updateBreite, None)
 
 self.data = daten
 
 self.fig = Figure()
 self.fig.set_animated(True)
 self.graph = self.fig.add_subplot(111)
 self.line, = self.graph.plot(self.data.get_ekg_data(),)
 self.graph.axis([0, self.DiagrammBreite.get_value(), 0, 4096])
 self.canvas = FigureCanvas(self.fig)
 
 self.DiagrammBreite = gtk.Adjustment(100,20,10000,1,10,10)
 self.DiagrammBreiteWidget = gtk.VScale(self.DiagrammBreite)
 self.DiagrammBreiteWidget.connect("value_changed",
self.updateBreite, None)
 
 def updateGraph(self,data):
 datacut = data[10000 - self.DiagrammBreite.get_value():10000]
 self.line.set_ydata(datacut)
 self.line.set_xdata(numpy.arange(0, datacut.size, 1))
 self.fig.canvas.draw()
 def updateBreite(self,widget, data = None):
 self.graph.axis([0, self.DiagrammBreite.get_value(), 0, 4096]) 
It works but it is very slow. (About 160mS for updateGraph when I have
two graphs) Is there any possibility to improve the performance? I
embedded the figure in GTK.
I looked to animation examples but every example there is a loop. So I
don't know how to use this class for my problem.
Peter