情节冻结因为快速输入流的GNU无线电块(Plot freezing because of fast

我实现了一个sync block其内部图表work使用功能input_items值。现在的问题是，绘制机制不是输入流（价值足够快input_items不断变化）。

我试图简化代码，尽可能并添加注释。这里是：

....
import matplotlib
from matplotlib.backends.backend_wxagg import FigureCanvasWxAgg as FigCanvas
from matplotlib.backends.backend_wx import NavigationToolbar2Wx
from matplotlib.figure import Figure
temp = ''
class xyz(gr.sync_block):
    def __init__(self,parent,title,order):
        a = []
        self.count = 1
        gr.sync_block.__init__(self,
                name="xyz",
                in_sig=[numpy.float32,numpy.float32],
                out_sig=None)
        self.win = xyzPlot(parent) #I have a Top Block(wxFrame). I am just making it the parent of xyzPlot(wxPanel) here.

    def work(self, input_items, output_items):
        global temp
        if (self.count == 1):
            temp = input_items+list()
        bool = not(np.allclose(temp,input_items))#bool will be true if the value of `input_items` changes. 
        .......
        #the code that evaluates z1,z2 depending on the value of input_items    
        .......
        if ( bool or self.count == 1 ):
        #If bool is true or it is the first time then I am calling plot() which plots the graph. 
            self.win.plot(tf(self.z1,self.z3),None,True,True,True,True)
        self.count = 0
        temp = input_items+list()
        return len(input_items[0])

class xyzPlot(wx.Panel):
    def __init__(self, parent, dB=None, Hz=None, deg=None):
        wx.Panel.__init__(self , parent , -1 ,size=(600,475))
        self.fig = Figure()
        self.axes = self.fig.add_subplot(111)

    def plot(self, syslist, omega=None, dB=None, Hz=None, deg=None, Plot=True, *args , **kwargs):
        self.axes.clear() #I clear the graph here so that new values can be plotted.
        .....
        self.axes.semilogx(omega,mag,*args,**kwargs)
        self.canvas = FigCanvas(self, -1, self.fig)
        self.canvas.draw()

正如你可以看到我与wxPython的工作，但每当我改变的值面板冻结input_items太快了（如果我改变它慢慢地它工作正常）。任何建议？我是新来的。

举另一个答案我给：