def calculate(self):
if self.configurationWidget is None:
stack = self.getStackDataObject()
index = stack.info.get("McaIndex", -1)
if index == len(stack.data.shape):
index = -1
stack = None
self.configurationWidget = PCAParametersDialog(None,
regions=True,
index=index)
self._status = qt.QLabel(self.configurationWidget)
self._status.setAlignment(qt.Qt.AlignHCenter)
font = qt.QFont(self._status.font())
font.setBold(True)
self._status.setFont(font)
self._status.setText("Ready")
self.configurationWidget.layout().addWidget(self._status)
self.configurationWidget.setEnabled(True)
activeCurve = self.getActiveCurve()
if activeCurve is None:
#I could get some defaults from the stack itslef
raise ValueError("Please select an active curve")
return
x, spectrum, legend, info = activeCurve
spectrumLength = max(spectrum.shape)
oldValue = self.configurationWidget.nPC.value()
self.configurationWidget.nPC.setMaximum(spectrumLength)
self.configurationWidget.nPC.setValue(min(oldValue, spectrumLength))
binningOptions = [1]
for number in [2, 3, 4, 5, 7, 9, 10, 11, 13, 15, 17, 19]:
if (spectrumLength % number) == 0:
binningOptions.append(number)
# TODO: Should inform the configuration widget about the possibility
# to encounter non-finite data?
ddict = {'options': binningOptions,
'binning': 1,
'method': 0}
self.configurationWidget.setParameters(ddict)
y = spectrum
self.configurationWidget.setSpectrum(x, y, legend=legend, info=info)
self.configurationWidget.show()
ret = self.configurationWidget.exec()
if ret:
self._kMeansWidget = None
self._executeFunctionAndParameters()
