title: How to integrate matplotlib fumction with QGraphicView?
body: <p>I am developing a Desktop application using Qt Designer and PyQt4. I need to display a some figure with contour which in python could be done with matplotlib.pyplot.contourf. I want to display the result inside a QGraphicView object.</p>
  
  <p>I am trying to do it by promoting the QGraphicView to a pygtgraph in Qt-Designer. If object name of QGraphicView is CNOPlot I have written </p>
  
  <pre><code>import matplotlib.pyplot as plt
  self.CNOPlot.plot(plt.contourf(xx, yy, Z,cmap=plt.cm.autumn, alpha=0.8))
  </code></pre>
  
  <p>It is giving output in separate window.
  I want this is to be ploted inside CNOPlot.</p>