matplotlib and PyQt ploting a suface
fig = pylab.figure()
ax = Axes3D( fig )
surf = ax.plot_surface( X, Y, Z, cmap=cm.gray_r, linewidth=0, antialiased=True )
fig.canvas.set_window_title( "Distance" )
pylab.show()

class ViewerForm(QMainWindow):
   def __init__(self, p_parent=None, p_data=None):
      QMainWindow.__init__( self, parent=p_parent )

      self.main_frame = QWidget( )
      self.figure = pyplot.figure()
      self.axis = Axes3D( self.figure )
      self.canvas = FigureCanvas( self.figure )
      self.canvas.setParent( self.main_frame )
      self.mpl_toolbar = NavigationToolbar( self.canvas, self.main_frame )

      self.X, self.Y = np.meshgrid( p_data[ "axis_x" ], p_data[ "axis_y" ] )
      self.Z = p_data[ "values_z" ]

      self.surface = self.axis.plot_surface( self.X, self.Y, self.Z, cmap=cm.gray, linewidth=0, antialiased=True )

      vbox = QVBoxLayout( )
      vbox.addWidget( self.canvas )
      vbox.addWidget( self.mpl_toolbar )
      self.main_frame.setLayout( vbox )

      self.setCentralWidget( self.main_frame )

self.surface = self.axis.plot_surface( self.X, self.Y, self.Z, cmap=cm.gray, linewidth=0, antialiased=True )
self.axis.mouse_init()