def METHOD_NAME(self):
    var = self.vars[0]
    mesh = var.mesh
    U, V = var.numericValue
    U = numerix.take(U, self.indices)
    V = numerix.take(V, self.indices)
    ang = numerix.arctan2(V, U)
    mag = numerix.sqrt(U**2 + V**2)
    datamin, datamax = self._autoscale(vars=(mag,),
                                       datamin=self._getLimit('datamin'),
                                       datamax=self._getLimit('datamax'))
    mag = numerix.where(mag > datamax, datamax, mag)
    mag = numerix.ma.masked_array(mag, mag < datamin)
    if self.log:
        mag = numerix.log10(mag)
        mag = numerix.ma.masked_array(mag, numerix.isnan(mag))
    U = mag * numerix.cos(ang)
    V = mag * numerix.sin(ang)
    self._quiver.set_UVC(U, V)
    self.axes.set_xlim(xmin=self._getLimit('xmin'),
                       xmax=self._getLimit('xmax'))
    self.axes.set_ylim(ymin=self._getLimit('ymin'),
                       ymax=self._getLimit('ymax'))