/usr/share/pyshared/PyMca/RGBImageCalculator.py is in pymca 4.5.0-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# Copyright (C) 2004-2012 European Synchrotron Radiation Facility
#
# This file is part of the PyMCA X-ray Fluorescence Toolkit developed at
# the ESRF by the Beamline Instrumentation Software Support (BLISS) group.
#
# This toolkit is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the Free
# Software Foundation; either version 2 of the License, or (at your option)
# any later version.
#
# PyMCA is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License along with
# PyMCA; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
# Suite 330, Boston, MA 02111-1307, USA.
#
# PyMCA follows the dual licensing model of Trolltech's Qt and Riverbank's PyQt
# and cannot be used as a free plugin for a non-free program.
#
# Please contact the ESRF industrial unit (industry@esrf.fr) if this license
# is a problem for you.
#############################################################################*/
__author__ = "V.A. Sole - ESRF Data Analysis"
import sys
import MaskImageWidget
import ColormapDialog
import numpy
import spslut
try:
import QPyMcaMatplotlibSave
MATPLOTLIB = True
except ImportError:
MATPLOTLIB = False
qt = MaskImageWidget.qt
IconDict = MaskImageWidget.IconDict
QTVERSION = qt.qVersion()
QWTVERSION4 = MaskImageWidget.QWTVERSION4
COLORMAPLIST = [spslut.GREYSCALE, spslut.REVERSEGREY, spslut.TEMP,
spslut.RED, spslut.GREEN, spslut.BLUE, spslut.MANY]
DEBUG = 0
class RGBImageCalculator(qt.QWidget):
def __init__(self, parent = None, math = True, replace = False, scanwindow=None):
qt.QWidget.__init__(self, parent)
self.setWindowIcon(qt.QIcon(qt.QPixmap(IconDict['gioconda16'])))
self.setWindowTitle("PyMCA - RGB Image Calculator")
self.mainLayout = qt.QVBoxLayout(self)
self.mainLayout.setMargin(0)
self.mainLayout.setSpacing(0)
self.imageList = None
self.imageDict = None
self._imageData = None
self.__imagePixmap = None
self.__imageColormap = None
self.__imageColormapDialog = None
self.setDefaultColormap(2, logflag=False)
self._y1AxisInverted = False
self._matplotlibSaveImage = None
self._build(math = math, replace = replace, scanwindow=scanwindow)
def _buildMath(self):
self.mathBox = qt.QWidget(self)
self.mathBox.mainLayout = qt.QHBoxLayout(self.mathBox)
self.mathLabel = qt.QLabel(self.mathBox)
self.mathLabel.setText("New image = ")
self.mathExpression = qt.QLineEdit(self.mathBox)
text = ""
text += "Enter a mathematical expression in which your images\n"
text += "have to be identified by a number between curly brackets.\n"
text += "In order to normalize image 1 by image 2: {1}/{2}\n"
text += "The numbers go from 1 to the number of rows in the table.\n"
text += "If you can suggest useful correlation functions please,\n"
text += "do not hesitate to contact us in order to implement them."
self.mathExpression.setToolTip(text)
self.mathAction = qt.QToolButton(self.mathBox)
self.mathAction.setText("CALCULATE")
self.mathBox.mainLayout.addWidget(self.mathLabel)
self.mathBox.mainLayout.addWidget(self.mathExpression)
self.mathBox.mainLayout.addWidget(self.mathAction)
self.mainLayout.addWidget(self.mathBox)
self.connect(self.mathAction, qt.SIGNAL("clicked()"),
self._calculateClicked)
def _build(self, math = True, replace = False, scanwindow=False):
if math:
self._buildMath()
self.graphWidget = MaskImageWidget.MaskImageWidget(self,
colormap=True,
standalonesave=True,
imageicons=False,
profileselection=True,
selection=False,
scanwindow=scanwindow)
self.nameBox = qt.QWidget(self)
self.nameBox.mainLayout = qt.QHBoxLayout(self.nameBox)
self.nameLabel = qt.QLabel(self.nameBox)
self.nameLabel.setText("Image Name = ")
#self.nameLabel.setText(qt.QString(qt.QChar(0x3A3)))
self.name = qt.QLineEdit(self.nameBox)
self.nameBox.mainLayout.addWidget(self.nameLabel)
self.nameBox.mainLayout.addWidget(self.name)
# The IMAGE selection
#self.imageButtonBox = qt.QWidget(self)
self.imageButtonBox = self.nameBox
buttonBox = self.imageButtonBox
#self.imageButtonBoxLayout = qt.QHBoxLayout(buttonBox)
self.imageButtonBoxLayout = self.nameBox.mainLayout
self.imageButtonBoxLayout.setMargin(0)
self.imageButtonBoxLayout.setSpacing(0)
self.addImageButton = qt.QPushButton(buttonBox)
icon = qt.QIcon(qt.QPixmap(IconDict["rgb16"]))
self.addImageButton.setIcon(icon)
self.addImageButton.setText("ADD IMAGE")
self.removeImageButton = qt.QPushButton(buttonBox)
self.removeImageButton.setIcon(icon)
self.removeImageButton.setText("REMOVE IMAGE")
self.imageButtonBoxLayout.addWidget(self.addImageButton)
self.imageButtonBoxLayout.addWidget(self.removeImageButton)
if replace:
self.replaceImageButton = qt.QPushButton(buttonBox)
self.replaceImageButton.setIcon(icon)
self.replaceImageButton.setText("REPLACE IMAGE")
self.imageButtonBoxLayout.addWidget(self.replaceImageButton)
#self.mainLayout.addWidget(self.nameBox)
self.mainLayout.addWidget(self.graphWidget)
self.mainLayout.addWidget(buttonBox)
self.connect(self.addImageButton, qt.SIGNAL("clicked()"),
self._addImageClicked)
self.connect(self.removeImageButton, qt.SIGNAL("clicked()"),
self._removeImageClicked)
if replace:
self.connect(self.replaceImageButton, qt.SIGNAL("clicked()"),
self._replaceImageClicked)
#it consumes too much CPU, therefore only on click
#self.graphWidget.graph.canvas().setMouseTracking(1)
self.graphWidget.graphWidget.showInfo()
self.connect(self.graphWidget.graphWidget.graph,
qt.SIGNAL("QtBlissGraphSignal"),
self._graphSignal)
def plotImage(self, update = True):
self.graphWidget.setImageData(self._imageData)
return self.graphWidget.plotImage(update=update)
def _calculateClicked(self):
if DEBUG:
print("Calculate clicked")
text = "%s" % self.mathExpression.text()
if not len(text):
qt.QMessageBox.critical(self, "Calculation Error",
"Empty expression")
return 1
expression = text * 1
name = text * 1
i = 1
for label in self.imageList:
item = "{%d}" % i
replacingChain ="self.imageDict[self.imageList[%d]]['image']" % (i-1)
expression = expression.replace(item, replacingChain)
if sys.version < '3.0':
try:
tmpLabel = label.decode()
except UnicodeDecodeError:
try:
tmpLabel = label.decode('utf-8')
except UnicodeDecodeError:
try:
tmpLabel = label.decode('latin-1')
except UnicodeDecodeError:
tmpLabel = "image_%0d" % i
else:
tmpLabel = label
name = name.replace(item, tmpLabel)
i = i + 1
try:
self._imageData = 1 * eval(expression)
except:
error = sys.exc_info()
text = "Failed to evaluate expression:\n"
text += "%s\n" % expression
text += "%s" % error[1]
qt.QMessageBox.critical(self,"%s" % error[0], text)
return 1
self.plotImage()
self.setName("(%s)" % name)
def setName(self, name):
self.name.setText(name)
self.graphWidget.graph.setTitle("%s" % name)
def _addImageClicked(self):
if DEBUG:
print("Add image clicked")
if self._imageData is None:
return
if self._imageData == []:
return
text = "%s" % self.name.text()
if not len(text):
qt.QMessageBox.critical(self, "Name Error",
"Please give a name to the image")
return 1
ddict = {}
ddict['label'] = text
ddict['image'] = self._imageData
self.emit(qt.SIGNAL("addImageClicked"),
ddict)
def _removeImageClicked(self):
if DEBUG:
print("remove image clicked")
text = "%s" % self.name.text()
if not len(text):
qt.QMessageBox.critical(self, "Name Error",
"Please enter the image name")
return 1
self.emit(qt.SIGNAL("removeImageClicked"),
text)
def _replaceImageClicked(self):
if DEBUG:
print("replace image clicked")
text = "%s" % self.name.text()
if not len(text):
qt.QMessageBox.critical(self, "Name Error",
"Please enter the image name")
return 1
ddict = {}
ddict['label'] = text
ddict['image'] = self._imageData
self.emit(qt.SIGNAL("replaceImageClicked"),
ddict)
def setDefaultColormap(self, colormapindex, logflag=False):
self.__defaultColormap = COLORMAPLIST[min(colormapindex, len(COLORMAPLIST)-1)]
if logflag:
self.__defaultColormapType = spslut.LOG
else:
self.__defaultColormapType = spslut.LINEAR
def _graphSignal(self, ddict):
if ddict['event'] == "MouseAt":
if self._imageData is None:
self.graphWidget.setInfoText(" X = ???? Y = ???? Z =????")
return
x = round(ddict['y'])
if x < 0: x = 0
y = round(ddict['x'])
if y < 0: y = 0
limits = self._imageData.shape
x = min(int(x), limits[0]-1)
y = min(int(y), limits[1]-1)
z = self._imageData[x, y]
self.graphWidget.graphWidget.setInfoText(" X = %d Y = %d Z = %.7g" %\
(y, x, z))
def closeEvent(self, event):
if self.__imageColormapDialog is not None:
self.__imageColormapDialog.close()
if self._matplotlibSaveImage is not None:
self._matplotlibSaveImage.close()
qt.QWidget.closeEvent(self, event)
def test():
app = qt.QApplication(sys.argv)
w = RGBImageCalculator()
array1 = numpy.arange(10000)
array2 = numpy.transpose(array1)
array3 = array1 * 1
array1.shape = [100,100]
array2.shape = [100,100]
array3.shape = [100,100]
imageList = ["array1", "array2","array3"]
imageDict = {"array1":{'image':array1},
"array2":{'image':array2},
"array3":{'image':array3}}
w.imageList = imageList
w.imageDict = imageDict
w.show()
app.exec_()
if __name__ == "__main__":
test()
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