def __updateResidual(self):
"""
Update the display of the residual.
Called when the calibration state was updated.
"""
state = self.__calibrationState
rms = state.getRms()
if rms is not None:
angleUnit = CalibrationContext.instance().getAngleUnit().value()
rms = units.convert(rms, units.Unit.RADIAN, angleUnit)
text = stringutil.to_scientific_unicode(rms, digits=4)
previousRms = state.getPreviousRms()
if previousRms is not None:
previousRms = units.convert(previousRms, units.Unit.RADIAN,
angleUnit)
if numpy.isclose(rms, previousRms):
diff = "no changes"
else:
diff = stringutil.to_scientific_unicode(rms - previousRms,
digits=2)
if rms < previousRms:
diff = '<font color="green">%s</font>' % diff
else:
diff = '<font color="red">%s</font>' % diff
text = '%s (%s)' % (text, diff)
text = "%s %s" % (text, angleUnit.symbol)
else:
text = ""
self._currentResidual.setText(text)
def data(self, index, role=qt.Qt.DisplayRole):
if not index.isValid():
return None
row = index.row()
item = self.__historyModel[row]
if role == qt.Qt.DisplayRole:
column = index.column()
if column == self.RmsColumn:
rms = item.rms()
if rms is None:
return "n/a"
if self.__angleUnit is not None:
angleUnit = self.__angleUnit.value()
rms = units.convert(rms, units.Unit.RADIAN, angleUnit)
value = stringutil.to_scientific_unicode(rms)
return value
elif column == self.TimeColumn:
time = item.time()
return time.strftime("%Hh%M %Ss")
elif column == self.LabelColumn:
return item.label()
else:
return ""