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HfirPDReductionGUI.py
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HfirPDReductionGUI.py
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################################################################################
#
# Main class for HFIR powder reduction GUI
#
################################################################################
#pylint: disable=invalid-name
import numpy
import sys
import os
from Ui_MainWindow import Ui_MainWindow #import line for the UI python class
from PyQt4 import QtCore, QtGui
try:
_fromUtf8 = QtCore.QString.fromUtf8
except AttributeError:
def _fromUtf8(s):
return s
from matplotlib.pyplot import setp
from HfirPDReductionControl import *
#----- default configuration ---------------
DEFAULT_SERVER = 'http://neutron.ornl.gov/user_data'
DEFAULT_INSTRUMENT = 'hb2a'
DEFAULT_WAVELENGTH = 2.4100
#-------------------------------------------
class MainWindow(QtGui.QMainWindow):
""" Class of Main Window (top)
Copy to ui.setupUI
# Version 3.0 + Import for Ui_MainWindow.py
from MplFigureCanvas import Qt4MplCanvas
# Replace 'self.graphicsView = QtGui.QtGraphicsView' with the following
self.graphicsView = Qt4MplCanvas(self.centralwidget)
self.mainplot = self.graphicsView.getPlot()
"""
def __init__(self, parent=None):
""" Intialization and set up
"""
# Base class
QtGui.QMainWindow.__init__(self,parent)
# UI Window (from Qt Designer)
self.ui = Ui_MainWindow()
self.ui.setupUi(self)
# Define gui-event handling
self.connect(self.ui.pushButton_loadData, QtCore.SIGNAL('clicked()'),
self.doLoadData)
self.connect(self.ui.pushButton_prevScan, QtCore.SIGNAL('clicked()'),
self.doLoadPrevScan)
self.connect(self.ui.pushButton_nextScan, QtCore.SIGNAL('clicked()'),
self.doLoadNextScan)
self.connect(self.ui.pushButton_unit2theta, QtCore.SIGNAL('clicked()'),
self.doPlot2Theta)
self.connect(self.ui.pushButton_unitD, QtCore.SIGNAL('clicked()'),
self.doPlotDspacing)
self.connect(self.ui.pushButton_unitQ, QtCore.SIGNAL('clicked()'),
self.doPlotQ)
self.connect(self.ui.pushButton_saveData, QtCore.SIGNAL('clicked()'),
self.doSaveData)
self.connect(self.ui.pushButton_browseCache, QtCore.SIGNAL('clicked()'),
self.doBrowseCache)
self.connect(self.ui.pushButton_plotRaw, QtCore.SIGNAL('clicked()'),
self.doPlotCurrentRawDet)
self.connect(self.ui.pushButton_ptUp, QtCore.SIGNAL('clicked()'),
self.doPlotPrevPtRaw)
self.connect(self.ui.pushButton_ptDown, QtCore.SIGNAL('clicked()'),
self.doPlotNextPtRaw)
self.connect(self.ui.pushButton_detUp, QtCore.SIGNAL('clicked()'),
self.doPlotPrevDetRaw)
self.connect(self.ui.pushButton_detDown, QtCore.SIGNAL('clicked()'),
self.doPlotNextDetRaw)
self.connect(self.ui.radioButton_useServer, QtCore.SIGNAL('clicked()'),
self.doChangeSrcLocation)
self.connect(self.ui.radioButton_useLocal, QtCore.SIGNAL('clicked()'),
self.doChangeSrcLocation)
self.connect(self.ui.pushButton_browseLocalSrc, QtCore.SIGNAL('clicked()'),
self.doBrowseLocalDataSrc)
self.connect(self.ui.pushButton_chkServer, QtCore.SIGNAL('clicked()'),
self.doCheckSrcServer)
self.connect(self.ui.comboBox_wavelength, QtCore.SIGNAL('currentIndexChanged(int)'),
self.doUpdateWavelength)
self.connect(self.ui.actionQuit, QtCore.SIGNAL('triggered()'),
self.doExist)
self.connect(self.ui.pushButton_stripVanPeaks, QtCore.SIGNAL('clicked()'),
self.doStripVandiumPeaks)
self.connect(self.ui.pushButton_saveVanRun, QtCore.SIGNAL('clicked()'),
self.doSaveVanRun)
self.connect(self.ui.pushButton_rebinD, QtCore.SIGNAL('clicked()'),
self.doRebinD)
self.connect(self.ui.pushButton_mergeScans, QtCore.SIGNAL('clicked()'),
self.doMergeScans)
self.connect(self.ui.pushButton_view2D, QtCore.SIGNAL('clicked()'),
self.doMergeScanView2D)
# Define signal-event handling
# Widget type definition
validator0 = QtGui.QIntValidator(self.ui.lineEdit_expNo)
validator0.setBottom(1)
self.ui.lineEdit_expNo.setValidator(validator0)
validator1 = QtGui.QIntValidator(self.ui.lineEdit_expNo)
validator1.setBottom(1)
self.ui.lineEdit_scanNo.setValidator(validator1)
validator2 = QtGui.QDoubleValidator(self.ui.lineEdit_wavelength)
validator2.setBottom(0.)
self.ui.lineEdit_wavelength.setValidator(validator2)
validator3 = QtGui.QDoubleValidator(self.ui.lineEdit_xmin)
validator3.setBottom(0.)
self.ui.lineEdit_xmin.setValidator(validator3)
validator4 = QtGui.QDoubleValidator(self.ui.lineEdit_xmax)
validator4.setBottom(0.)
self.ui.lineEdit_xmax.setValidator(validator4)
validator5 = QtGui.QDoubleValidator(self.ui.lineEdit_binsize)
validator5.setBottom(0.)
self.ui.lineEdit_binsize.setValidator(validator5)
validator6 = QtGui.QDoubleValidator(self.ui.lineEdit_ptNo)
validator6.setBottom(0)
self.ui.lineEdit_ptNo.setValidator(validator6)
validator7 = QtGui.QDoubleValidator(self.ui.lineEdit_detNo)
validator7.setBottom(0)
self.ui.lineEdit_detNo.setValidator(validator7)
validator8 = QtGui.QDoubleValidator(self.ui.lineEdit_minD)
validator8.setBottom(0.)
self.ui.lineEdit_minD.setValidator(validator8)
validator9 = QtGui.QDoubleValidator(self.ui.lineEdit_maxD)
validator9.setBottom(0.)
self.ui.lineEdit_maxD.setValidator(validator9)
validator10 = QtGui.QDoubleValidator(self.ui.lineEdit_binsizeD)
validator10.setBottom(0.)
self.ui.lineEdit_binsizeD.setValidator(validator10)
validator11 = QtGui.QIntValidator(self.ui.lineEdit_scanStart)
validator11.setBottom(1)
self.ui.lineEdit_scanStart.setValidator(validator11)
validator12 = QtGui.QIntValidator(self.ui.lineEdit_scanEnd)
validator12.setBottom(1)
self.ui.lineEdit_scanEnd.setValidator(validator12)
# TODO - Add valdiators
# Get initial setup
self._initSetup()
return
def _initSetup(self):
""" Initial setup
"""
# FIXME - This part will be implemented soon as default configuration is made
# Mantid configuration
self._instrument = str(self.ui.comboBox_instrument.currentText())
#if IMPORT_MANTID is True:
# config = ConfigService.Instance()
# self._instrument = config["default.instrument"]
#else:
# self._instrument = DEFAULT_INSTRUMENT
# UI widgets setup
self.ui.comboBox_outputFormat.addItems(['Fullprof', 'GSAS', 'Fullprof+GSAS'])
# FIXME : Need to disable some widgets... consider to refactor the code
self.ui.radioButton_useServer.setChecked(True)
self.ui.radioButton_useLocal.setChecked(False)
self.ui.comboBox_wavelength.setCurrentIndex(0)
self.ui.lineEdit_wavelength.setText('2.41')
self.ui.pushButton_unit2theta.setText(r'$2\theta$')
# Set up data source
self._serverAddress = DEFAULT_SERVER
self._srcFromServer = True
self._localSrcDataDir = None
self._srcAtLocal = False
self._currUnit = '2theta'
# Workspaces
self._myControl = HFIRPDRedControl()
"""
self._myReducedPDWs = None
self._prevoutws = None
self._ptNo = None
self._detNo = None
# set up for plotting
self._myLineMarkerColorList = self.ui.graphicsView_reducedData.getDefaultColorMarkerComboList()
self._myLineMarkerColorIndex = 0
# workspaces
self._myDataMDWS = None
self._myMonitorMDWS = None
# State machine
# self._inPlotState = False
"""
return
#-- Event Handling ----------------------------------------------------
def doBrowseCache(self):
""" Pop out a dialog to let user specify the directory to
cache downloaded data
"""
# home directory
homedir = str(self.ui.lineEdit_cache.text()).strip()
if len(homedir) > 0 and os.path.exists(homedir):
home = homedir
else:
home = os.getcwd()
# pop out a dialog
dirs = str(QtGui.QFileDialog.getExistingDirectory(self,'Get Directory',home))
# set to line edit
if dirs != home:
self.ui.lineEdit_cache.setText(dirs)
return
def doBrowseLocalDataSrc(self):
""" Browse local data storage
"""
print "Browse local data storage location."
return
def doChangeSrcLocation(self):
""" Source file location is changed
"""
useserver = self.ui.radioButton_useServer.isChecked()
uselocal = self.ui.radioButton_useLocal.isChecked()
print "Use Server: ", useserver
print "Use Local : ", uselocal
if (useserver is True and uselocal is True) or \
(useserver is False and uselocal is False):
raise NotImplementedError("Impossible for radio buttons")
self._srcAtLocal = uselocal
self._srcFromServer = useserver
if uselocal is True:
self.ui.lineEdit_dataIP.setDisabled(True)
self.ui.pushButton_chkServer.setDisabled(True)
self.ui.lineEdit_localSrc.setDisabled(False)
self.ui.pushButton_browseLocalSrc.setDisabled(False)
else:
self.ui.lineEdit_dataIP.setDisabled(False)
self.ui.pushButton_chkServer.setDisabled(False)
self.ui.lineEdit_localSrc.setDisabled(True)
self.ui.pushButton_browseLocalSrc.setDisabled(True)
return
def doCheckSrcServer(self):
"""" Check source data server's availability
"""
print "Check source data server!"
return
def doLoadData(self):
""" Load and reduce data
"""
# Get information
try:
expno, scanno = self._uiGetExpScanNumber()
except Exception as e:
self._logError("Error to get Exp and Scan due to %s." % (str(e)))
return
self._logDebug("Attending to load Exp %d Scan %d." % (expno, scanno))
# Form data file name and download data
status, datafilename = self._uiLoadDataFile(exp=expno, scan=scanno)
if status is False:
self._logError("Unable to download or locate local data file for Exp %d \
Scan %d." % (expno, scanno))
# Get other information
try:
xmin, binsize, xmax = self._uiGetBinningParams()
except Exception as e:
self._logError(str(e))
return
unit = self._currUnit
wavelength = float(self.ui.lineEdit_wavelength.text())
# Reduce data
execstatus = self._myControl.reduceSpicePDData(expno, scanno, datafilename, unit, xmin,
xmax, binsize, wavelength)
print "[DB] reduction status = ", execstatus
# Plot data
clearcanvas = self.ui.checkBox_clearPrevious.isChecked()
xlabel = self._getXLabelFromUnit(unit)
if execstatus is True:
self._plotReducedData(expno, scanno, self.ui.graphicsView_reducedData, xlabel,
label="Exp %d Scan %d Bin = %.5f" % (expno, scanno, binsize), clearcanvas=clearcanvas)
return execstatus
def doLoadPrevScan(self):
"""
"""
# Advance scan number by 1
try:
scanno = int(self.ui.lineEdit_scanNo.text())
except ValueError:
self._logError("Either Exp No or Scan No is not set up right as integer.")
return
else:
scanno = scanno - 1
if scanno < 1:
self._logWarning("Scan number is 1 already. Cannot have previous scan")
return
self.ui.lineEdit_scanNo.setText(str(scanno))
# call load data
execstatus = self.doLoadData()
return execstatus
def doLoadNextScan(self):
"""
"""
# Advance scan number by 1
try:
scanno = int(self.ui.lineEdit_scanNo.text())
except ValueError:
self._logError("Either Exp No or Scan No is not set up right as integer.")
return
else:
scanno = scanno + 1
if scanno < 1:
self._logWarning("Scan number is 1 already. Cannot have previous scan")
return
self.ui.lineEdit_scanNo.setText(str(scanno))
# call load data
execstatus = self.doLoadData()
if execstatus is False:
scanno = scanno - 1
self.ui.lineEdit_scanNo.setText(str(scanno))
return execstatus
def doExist(self):
""" Exist the application
"""
clearcache = self.ui.checkBox_delCache.isChecked()
if clearcache is True:
# TODO - Clear cache
print "Clear Cache!"
self.close()
return
def doMergeScans(self):
""" Merge several scans
for tab 'merge'
"""
# get inputs for scans
try:
expno = int(self.ui.lineEdit_expNo.text())
startscan = int(self.ui.lineEdit_scanStart.text())
endscan = int(self.ui.lineEdit_scanEnd.text())
except ValueError as e:
self._logError("For merging scans, both starting scan number and \
end scan number must be given.")
return
excludedlist = self._getIntArray(str(self.ui.lineEdit_exclScans.text()))
self._logDebug("Excluded list: %s" %(str(excludedlist)))
if isinstance(excludedlist, str):
self._logError(excludedlist)
return
scanslist = range(startscan, endscan+1)
for scan in excludedlist:
scanslist.remove(scan)
# process input exp number and scan list
expscanfilelist = []
for scanno in scanslist:
retv, datafilename = self._uiLoadDataFile(expno, scanno)
if retv is True:
expscanfilelist.append( (expno, scanno, datafilename) )
else:
self._logError("Unable to load Exp %s Scan %s." % (expno, scanno))
# ENDFOR
try:
unit = self._currUnit
xmin, binsize, xmax = self._uiGetBinningParams()
wavelength = float(self.ui.lineEdit_wavelength.text())
except Exception as e:
raise e
mindex = self._myControl.mergeReduceSpiceData(expscanfilelist, unit, xmin, xmax, binsize, wavelength)
label = "Exp %d, Scan %s." % (expno, str(scanslist))
self._plotMergedReducedData(mindex, label)
return
def doMergeScanView2D(self):
"""
"""
# TODO : ASAP
# Highlight button color
self.ui.pushButton_view2D.setStyleSheet('QPushButton {background-color: #A3C1DA; color: red;}')
# Plot 2D
return
def doPlot2Theta(self):
""" Rebin the data and plot in 2theta
"""
self._uiRebinPlot('2theta')
self._currUnit = '2theta'
return
def doPlotDspacing(self):
""" Rebin the data and plot in d-spacing
"""
# new unit and information
newunit = "dSpacing"
self._uiRebinPlot(newunit)
self._currUnit = newunit
return
def doPlotQ(self):
""" Rebin the data and plot in momentum transfer Q
"""
newunit = 'Momentum Transfer (Q)'
self._uiRebinPlot(unit =newunit)
self._currUnit = newunit
return
def doPlotCurrentRawDet(self):
""" Plot current raw detector signals
"""
# Plot specified raw detectors
ptstr = str(self.ui.lineEdit_ptNo.text())
detstr = str(self.ui.lineEdit_detNo.text())
if len(ptstr) == 0 or len(detstr) == 0:
self._logError("Neither Pt. nor detector ID can be left blank to plot raw detector signal.")
return
ptno = int(ptstr)
detno = int(detstr)
status, errmsg = self._checkValidPtDet(ptno, detno)
if status is False:
self._logError(errmsg)
self._ptNo = ptno
self._detNo = detno
self._plotRawDetSignal(self._ptNo, self._detNo)
return
def doPlotPrevDetRaw(self):
""" Plot previous raw detector
"""
# check
if self._ptNo is not None and self._detNo is not None:
detno = self._detNo + 1
else:
self._logError("Unable to plot previous raw detector \
because Pt. or Detector ID has not been set up yet.")
return
# det number minus 1
status, errmsg = self._checkValidPtDet(self._ptNo, detno)
if status is False:
self._logError(errmsg)
else:
self._detNo = detno
self.ui.lineEdit_detNo.setText(str(self._detNo))
# plot
self._plotRawDetSignal(self._ptNo, self._detNo)
return
def doPlotNextDetRaw(self):
""" Plot next raw detector signals
"""
# check
if self._ptNo is not None and self._detNo is not None:
detno = self._detNo + 1
else:
self._logError("Unable to plot previous raw detector \
because Pt. or Detector ID has not been set up yet.")
return
# det number minus 1
status, errmsg = self._checkValidPtDet(self._ptNo, detno)
if status is False:
self._logError(errmsg)
else:
self._detNo = detno
self.ui.lineEdit_detNo.setText(str(self._detNo))
# plot
self._plotRawDetSignal(self._ptNo, self._detNo)
return
def doPlotPrevPtRaw(self):
""" Plot previous raw detector
"""
# check
if self._ptNo is not None and self._detNo is not None:
ptno = self._ptNo - 1
else:
self._logError("Unable to plot previous raw detector \
because Pt. or Detector ID has not been set up yet.")
return
# det number minus 1
status, errmsg = self._checkValidPtDet(self._ptNo, detno)
if status is False:
self._logError(errmsg)
else:
self._ptNo = ptno
self.ui.lineEdit_ptNo.setText(str(self._ptNo))
# plot
self._plotRawDetSignal(self._ptNo, self._detNo)
return
def doPlotNextPtRaw(self):
""" Plot next raw detector signals
"""
# check
if self._ptNo is not None and self._detNo is not None:
ptno = self._ptN + 1
else:
self._logError("Unable to plot previous raw detector \
because Pt. or Detector ID has not been set up yet.")
return
# det number minus 1
status, errmsg = self._checkValidPtDet(self._ptNo, detno)
if status is False:
self._logError(errmsg)
else:
self._ptNo = ptno
self.ui.lineEdit_ptNo.setText(str(self._ptNo))
# plot
self._plotRawDetSignal(self._ptNo, self._detNo)
return
def doRebinD(self):
""" Rebin MDEventWorkspaces in d-Spacing. for pushButton_rebinD
in vanadium peak strip tab
"""
self._uiRebinPlot(unit='dSpacing', xmin=self.ui.lineEdit_minD.text(),
binsize=self.ui.lineEdit_binsizeD.text(),
xmax=self.ui.lineEdit_maxD.text(),
canvas=self.ui.graphicsView_vanPeaks)
return
dminstr = str(self.ui.lineEdit_minD.text()).strip()
dmaxstr = str(self.ui.lineEdit_maxD.text()).strip()
dbinsizestr = str(self.ui.lineEdit_binsizeD.text()).strip()
# dmin and dmax
if len(dminstr) == 0 or len(dmaxstr) == 0:
dmin = None
dmax = None
else:
dmin = float(dminstr)
dmax = float(dmaxstr)
# bin size
if len(dbinsizestr) == 0:
self._logError("Bin size in d-spacing must be specified!")
return
else:
binsize = float(dbinsizestr)
# rebin
self._rebin('dSpacing', dmin, binsize, dmax)
self._plotReducedData(xlabel, 0, True)
return
def doSaveData(self):
""" Save data
"""
# get exp number and scan number
try:
# exp and scan
expno, scanno = self._uiGetExpScanNumber()
# file type
filetype = str(self.ui.comboBox_outputFormat.currentText())
# file name
savedatadir = str(self.ui.lineEdit_outputFileName.text()).strip()
if savedatadir != None and os.path.exists(savedatadir) is True:
homedir = savedatadir
else:
homedir = os.getcwd()
# launch a dialog to get data
filter = "All files (*.*);;Fullprof (*.dat);;GSAS (*.gsa)"
sfilename = str(QtGui.QFileDialog.getSaveFileName(self, 'Save File',
homedir, filter))
except NotImplementedError as e:
self._logError(str(e))
else:
self._myControl.savePDFile(expno, scanno, filetype, sfilename)
return
def doSaveVanRun(self):
""" Save the vanadium run with peaks removed
"""
# TODO - Need to get use case from Clarina
raise NotImplementedError("Need use case from instrument scientist")
def doStripVandiumPeaks(self):
""" Strip vanadium peaks
"""
inputws = self._myReducedPDWs
api.StripVanadiumPeaks(inputws, BackgroundType="Linear",
WorkspaceIndex=0)
self._plotVanadiumRun(xlabel, 0, True)
return
def doUpdateWavelength(self):
""" Update the wavelength to line edit
"""
index = self.ui.comboBox_wavelength.currentIndex()
print "Update wavelength to ", index
if index == 0:
wavelength = 2.41
elif index == 1:
wavelength = 1.54
elif index == 2:
wavelength = 1.12
else:
wavelength = None
self.ui.lineEdit_wavelength.setText(str(wavelength))
return
#---------------------------------------------------------------------------
# Private methods dealing with UI
#---------------------------------------------------------------------------
def _uiLoadDataFile(self, exp, scan):
""" Load data file according to its exp and scan
Either download the data from a server or copy the data file from local
disk
"""
# Get on hold of raw data file
useserver = self.ui.radioButton_useServer.isChecked()
uselocal = self.ui.radioButton_useLocal.isChecked()
if (useserver and uselocal) is False:
self._logError("It is logically wrong to set up server/local dir for data.")
useserver = True
uselocal = False
self.ui.radioButton_useServer.setChecked(True)
self.ui.radioButton_useLocal.setChecked(False)
# ENDIF
rvalue = False
if self._srcFromServer is True:
# Use server: build the URl to download data
if self._serverAddress.endswith('/') is False:
self._serverAddress += '/'
fullurl = "%s%s/exp%d/Datafiles/%s_exp%04d_scan%04d.dat" % (self._serverAddress,
self._instrument.lower(), exp, self._instrument.upper(), exp, scan)
print "URL: ", fullurl
cachedir = str(self.ui.lineEdit_cache.text()).strip()
if os.path.exists(cachedir) is False:
cachedir = os.getcwd()
self.ui.lineEdit_cache.setText(cachedir)
self._logWarning("Cache directory is not valid. \
Using current workspace directory %s as cache." % (cachedir) )
filename = '%s_exp%04d_scan%04d.dat' % (self._instrument.upper(), exp, scan)
self._srcFileName = os.path.join(cachedir, filename)
status, errmsg = downloadFile(fullurl, self._srcFileName)
if status is False:
self._logError(errmsg)
self._srcFileName = None
else:
rvalue = True
elif self._srcAtLocal is True:
# Data from local
self._srcFileName = os.path.join(self._localSrcDataDir, "%s/Exp%d_Scan%04d.dat" % (self._instrument, exp, scan))
if os.path.exists(self._srcFileName) is True:
rvalue = True
else:
raise NotImplementedError("Logic error. Neither downloaded from server.\
Nor from local drive")
return (rvalue,self._srcFileName)
def _PlotRawDet(self):
""" Plot the counts of one detector of a certain Pt. in an experiment
"""
# FIXME - The use case is not determined. Take a look at the help hint of this tab
vecx, vecy = self._getDetCounts()
def _plotReducedData(self, exp, scan, canvas, xlabel, label=None, clearcanvas=True,
spectrum=0):
""" Plot reduced data for exp and scan
self._plotReducedData(exp, scan, self.ui.canvas1, clearcanvas, xlabel=self._currUnit, 0, clearcanvas)
"""
# FIXME - NEED TO REFACTOR TOO!
# print "[DB] Plot reduced data!", "_inPlotState = ", str(self._inPlotState)
# whether the data is load
if self._myControl.hasReducedWS(exp, scan) is False:
self._logWarning("No data to plot!")
return
# get to know whether it is required to clear the image
if clearcanvas is True:
canvas.clearAllLines()
canvas.setLineMarkerColorIndex(0)
#self.ui.graphicsView_reducedData.clearAllLines()
#self._myLineMarkerColorIndex = 0
# plot
vecx, vecy = self._myControl.getVectorToPlot(exp, scan)
# get the marker color for the line
marker, color = canvas.getNextLineMarkerColorCombo()
# plot
if label is None:
label = "Exp %d Scan %d" % (exp, scan)
canvas.addPlot(vecx, vecy, marker=marker, color=color,
xlabel=xlabel, ylabel='intensity',label=label)
if clearcanvas is True:
xmax = max(vecx)
xmin = min(vecx)
dx = xmax-xmin
ymax = max(vecy)
ymin = min(vecy)
dy = ymax-ymin
canvas.setXYLimit(xmin-dx*0.1, xmax+dx*0.1, ymin-dy*0.1, ymax+dy*0.1)
return
def _plotMergedReducedData(self, mkey, label):
""" Plot the reduced data from merged ...
"""
# get the data
try:
vecx, vecy = self._myControl.getMergedVector(mkey)
except Exception as e:
self._logError("Unable to retrieve merged reduced data due to %s." % (str(e)))
return
canvas = self.ui.graphicsView_mergeRun
# FIXME : shall be an option?
clearcanvas = True
if clearcanvas is True:
canvas.clearAllLines()
canvas.setLineMarkerColorIndex(0)
# plot
marker, color = canvas.getNextLineMarkerColorCombo()
xlabel = self._getXLabelFromUnit(self._currUnit)
canvas.addPlot(vecx, vecy, marker=marker, color=color,
xlabel=xlabel, ylabel='intensity',label=label)
if clearcanvas is True:
xmax = max(vecx)
xmin = min(vecx)
dx = xmax-xmin
ymax = max(vecy)
ymin = min(vecy)
dy = ymax-ymin
canvas.setXYLimit(xmin-dx*0.1, xmax+dx*0.1, ymin-dy*0.1, ymax+dy*0.1)
return
def _uiCheckBinningParameters(self, curxmin=None, curxmax=None, curbinsize=None, curunit=None, targetunit=None):
""" check the binning parameters including xmin, xmax, bin size and target unit
Return: True or false
"""
# get value
xmin = str(self.ui.lineEdit_xmin.text())
xmax = str(self.ui.lineEdit_xmax.text())
binsize = str(self.ui.lineEdit_binsize.text())
change = False
# check x-min
if len(xmin) > 0:
xmin = float(xmin)
if ( (self._myMinX is None) or (self._myMinX is not None and abs(xmin-self._myMinX) > 1.0E-5) ):
change = True
else:
xmin = None
# check x-max
if len(xmax) > 0:
xmax = float(xmax)
if ( (self._myMaxX is None) or (self._myMaxX is not None and
abs(xmax-self._myMaxX) > 1.0E-5) ):
change = True
else:
xmax = None
# check binsize
if len(binsize) > 0:
binsize = float(binsize)
if ( (self._myBinSize is None) or (self._myBinSize is not None and
abs(binsize-self._myBinSize) > 1.0E-5) ):
change = True
else:
binsize = None
# whether the unit should be changed or bin be changed?
if curunit != targetunit:
change = True
return (change, xmin, xmax, binsize)
def _uiGetBinningParams(self, xmin_w=None, binsize_w=None, xmax_w=None):
""" Get binning parameters
Return:
- xmin, binsize, xmax
"""
# get value
if xmin_w is None:
xmin = str(self.ui.lineEdit_xmin.text())
xmax = str(self.ui.lineEdit_xmax.text())
binsize = str(self.ui.lineEdit_binsize.text())
else:
xmin = str(xmin_w)
xmax = str(xmax_w)
binsize = str(binsize_w)
# set data
try:
xmin = float(xmin)
xmax = float(xmax)
except ValueError:
xmin = None
xmax = None
else:
if xmin >= xmax:
raise NotImplementedError("set minimum X = %.5f is larger than \
maximum X = %.5f" % (xmin, xmax))
try:
binsize = float(binsize)
except ValueError as e:
raise NotImplementedError("Error bins size cannot be left blank.")
return (xmin, binsize, xmax)
def _uiGetExpScanNumber(self):
""" Get experiment number and scan number from widgets for merged
"""
expnostr = self.ui.lineEdit_expNo.text()
scannostr = self.ui.lineEdit_scanNo.text()
try:
expno = int(expnostr)
scanno = int(scannostr)
except ValueError:
raise NotImplementedError("Either Exp No '%s' or Scan No '%s \
is not set up right as integer." % (expnostr, scannostr))
return (expno, scanno)
def _uiRebinPlot(self, unit, xmin=None, binsize=None, xmax=None, canvas=None):
""" Rebin and plot by reading GUI widgets' value
"""
# experiment number and scan number
try:
expno, scanno = self._uiGetExpScanNumber()
except NotImplementedError as e:
self._logError(str(e))
return
# binning parameters
if binsize is None: