def METHOD_NAME(self):
    """
    Adds a phase to the Pattern Plot
    """
    axis_range = self.pattern_widget.pattern_plot.viewRange()
    x_range = axis_range[0]
    y_range = axis_range[1]
    positions, intensities, baseline = \
        self.model.phase_model.get_rescaled_reflections(
            -1, self.model.pattern,
            x_range, y_range,
            self.model.calibration_model.wavelength * 1e10,
            self.get_unit())
    self.pattern_widget.add_phase(self.model.phase_model.phases[-1].name,
                                  positions,
                                  intensities,
                                  baseline,
                                  self.model.phase_model.phase_colors[-1])