def _extract_signal_fired(self):
if self.signal_map is None: return
if len(self.signal_map.squeeze().shape) == 2:
s = Image(
{'calibration' : {'data_cube' : self.signal_map.squeeze()}})
s.xscale = self.SI.xscale
s.yscale = self.SI.yscale
s.xunits = self.SI.xunits
s.yunits = self.SI.yunits
interactive_ns[self.signal_name] = s
else:
s = Spectrum(
{'calibration' : {'data_cube' : self.signal_map.squeeze()}})
s.energyscale = self.SI.xscale
s.energyunits = self.SI.xunits
interactive_ns[self.signal_name] = s
