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#/*##########################################################################
# Copyright (C) 2004-2014 V.A. Sole, European Synchrotron Radiation Facility
#
# This file is part of the PyMca X-ray Fluorescence Toolkit developed at
# the ESRF by the Software group.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
#############################################################################*/
__author__ = "V.A. Sole - ESRF Data Analysis"
__contact__ = "sole@esrf.fr"
__license__ = "MIT"
__copyright__ = "European Synchrotron Radiation Facility, Grenoble, France"
import sys
from PyMca5.PyMcaGui import PyMcaQt as qt
from PyMca5.PyMcaGui import PyMca_Icons
IconDict = PyMca_Icons.IconDict
from PyMca5.PyMcaGui import MaskImageWidget
from PyMca5.PyMcaGui import ScanWindow
from PyMca5.PyMcaMath import SGModule
class SGParametersWidget(qt.QWidget):
sigSGParametersSignal = qt.pyqtSignal(object)
def __init__(self, parent = None, length=2000):
qt.QWidget.__init__(self, parent)
self.mainLayout = qt.QGridLayout(self)
self.mainLayout.setContentsMargins(0, 0, 0, 0)
self.mainLayout.setSpacing(2)
i = 0
self._keyList = ['points', 'degree', 'order']
self.parametersDict = {'points':3,
'degree':1,
'order':0}
for text in ["Savitzky-Golay filter width:",
"Interpolating polynomial degree:",
"Derivative order (0=smoothing):"]:
label = qt.QLabel(self)
label.setText(text)
self.mainLayout.addWidget(label, i, 0)
#self.mainLayout.addWidget(qt.HorizontalSpacer(self), i, 1)
i +=1
i = 0
self.widgetDict = {}
for key in self._keyList:
self.widgetDict[key] = qt.QSpinBox(self)
self.widgetDict[key].setMinimum(1)
self.widgetDict[key].setMaximum(100)
self.widgetDict[key].setValue(self.parametersDict[key])
self.widgetDict[key].valueChanged[int].connect( \
self._updateParameters)
self.mainLayout.addWidget(self.widgetDict[key], i, 1)
i += 1
self.widgetDict['order'].setMinimum(0)
self.widgetDict['order'].setValue(0)
self.widgetDict['order'].setMaximum(4)
def setParameters(self, ddict):
for key in ddict:
if key in self._keyList:
self.widgetDict[key].setValue(ddict[key])
dummy = 0
self._updateParameters(dummy)
def _updateParameters(self, val):
for key in self._keyList:
self.parametersDict[key] = self.widgetDict[key].value()
self.widgetDict['order'].setMaximum(self.parametersDict['degree'])
if self.parametersDict['order'] > self.parametersDict['degree']:
self.parametersDict['order']=self.parametersDict['degree']
self.widgetDict['order'].setValue(self.parametersDict['order'])
ddict = {}
ddict['event']='SGParametersChanged'
ddict.update(self.parametersDict)
self.sigSGParametersSignal.emit(ddict)
def getParameters(self):
return self.parametersDict
class SGWindow(qt.QWidget):
def __init__(self, parent, data, image=None, x=None):
qt.QWidget.__init__(self, parent)
self.setWindowTitle("Savitzky-Golay Filter Configuration Window")
self.mainLayout = qt.QVBoxLayout(self)
self.mainLayout.setContentsMargins(0, 0, 0, 0)
self.mainLayout.setSpacing(2)
spectrum = data
if x is None:
self.xValues = range(len(spectrum))
else:
self.xValues = x
self.image = None
self.spectrum = spectrum
self.parametersWidget = SGParametersWidget(self, length=len(spectrum))
self.graph = ScanWindow.ScanWindow(self)
self.graph.newCurve(self.xValues,
spectrum, "Spectrum", replace=True)
self.mainLayout.addWidget(self.parametersWidget)
self.mainLayout.addWidget(self.graph)
self.getParameters = self.parametersWidget.getParameters
self.setParameters = self.parametersWidget.setParameters
self.parametersWidget.sigSGParametersSignal.connect(self.updateGraph)
self.updateGraph(self.getParameters())
def updateGraph(self, ddict):
points = ddict['points']
degree = ddict['degree']
order = ddict['order']
self.background = SGModule.getSavitzkyGolay(self.spectrum,
points,
degree=degree,
order=order)
if order > 0:
maptoy2 = True
else:
maptoy2 = False
self.graph.newCurve(self.xValues,
self.background, "Filtered Spectrum",
replace=False,
maptoy2=maptoy2)
#Force information update
legend = self.graph.getActiveCurve(just_legend=True)
if legend.startswith('Filtered'):
self.graph.setActiveCurve(legend)
class SGDialog(qt.QDialog):
def __init__(self, parent, data, x=None):
qt.QDialog.__init__(self, parent)
self.setWindowTitle("Savitzky-Golay Configuration Dialog")
self.mainLayout = qt.QVBoxLayout(self)
self.mainLayout.setContentsMargins(10, 10, 10, 10)
self.mainLayout.setSpacing(2)
self.__image = False
if len(data.shape) == 2:
spectrum = data.ravel()
else:
spectrum = data
self.parametersWidget = SGWindow(self, spectrum, image=False, x=x)
self.graph = self.parametersWidget.graph
self.mainLayout.addWidget(self.parametersWidget)
hbox = qt.QWidget(self)
hboxLayout = qt.QHBoxLayout(hbox)
hboxLayout.setContentsMargins(0, 0, 0, 0)
hboxLayout.setSpacing(0)
self.okButton = qt.QPushButton(hbox)
self.okButton.setText("OK")
self.okButton.setAutoDefault(False)
self.dismissButton = qt.QPushButton(hbox)
self.dismissButton.setText("Cancel")
self.dismissButton.setAutoDefault(False)
hboxLayout.addWidget(self.okButton)
hboxLayout.addWidget(qt.HorizontalSpacer(hbox))
hboxLayout.addWidget(self.dismissButton)
self.mainLayout.addWidget(hbox)
self.dismissButton.clicked.connect(self.reject)
self.okButton.clicked.connect(self.accept)
def getParameters(self):
parametersDict = self.parametersWidget.getParameters()
parametersDict['function'] = SGModule.replaceStackWithSavitzkyGolay
parametersDict['arguments'] = [parametersDict['points'],
parametersDict['degree'],
parametersDict['order']]
return parametersDict
def setParameters(self, ddict):
return self.parametersWidget.setParameters(ddict)
if __name__ == "__main__":
import numpy
app = qt.QApplication([])
if 1:
noise = numpy.random.randn(1000.)
y=numpy.arange(1000.)
w = SGDialog(None, y+numpy.sqrt(y)* noise)
w.show()
ret=w.exec_()
if ret:
print(w.getParameters())
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