class DistanceRestraint(RietveldClass):
"""
soft distance contraints
attribute:
- CATOD1: StringInfo("CATOD1", "Atom 1", ""),
- CATOD2: StringInfo("CATOD2", "Atom 2", ""),
- ITnum: IntInfo("ITnum", "symmetry operator number", 0),
- T1: FloatInfo("T1", "translation part 1 of symmetry operator", 0.0),
- T2: FloatInfo("T2", "translation part 2 of symmetry operator", 0.0),
- T3: FloatInfo("T3", "translation part 3 of symmetry operator", 0.0),
- Dist: FloatInfo("Dist", "required distance", 1.0),
- Sigma: FloatInfo("Sigma", "required distance deviation", 1.0),
"""
ParamDict = {
"CATOD1": StringInfo("CATOD1", "Atom 1", ""),
"CATOD2": StringInfo("CATOD2", "Atom 2", ""),
"ITnum": IntInfo("ITnum", "symmetry operator number", 0),
"T1": FloatInfo("T1", "translation part 1 of symmetry operator", 0.0),
"T2": FloatInfo("T2", "translation part 2 of symmetry operator", 0.0),
"T3": FloatInfo("T3", "translation part 3 of symmetry operator", 0.0),
"Dist": FloatInfo("Dist", "required distance", 1.0),
"Sigma": FloatInfo("Sigma", "required distance deviation", 1.0),
}
def __init__(self, parent):
"""initialization"""
RietveldClass.__init__(self, parent)
return
class ScatterFactorNeutron(ScatterFactor):
"""
scattering factor for neutron
"""
ParamDict = {
"NAM": StringInfo("NAM", "name of chemical element", ""),
"b": FloatInfo("b", "b", 0.0),
"ITY": EnumInfo("ITY", "form factor definition", 0,
{0: "only read a user defined atomic Fermi length b",
1: "user providing magnetic form factor",
-1: "user defining a table of sin(theta)/lambda - f"},
[0, 1, -1]),
}
ObjectDict = {}
ObjectListDict = {}
def __init__(self, parent):
"""
inheriting initialization
"""
ScatterFactor.__init__(self, parent)
formfactor = FormFactorNeutron(None)
self.set('FormFactor', formfactor)
return
class ScatterFactorXray(ScatterFactor):
"""
scattering factor for x-ray
"""
ParamDict = {
"NAM": StringInfo("NAM", "name of chemical element", ""),
"DFP": FloatInfo("DFP", "Df'", 0.0),
"DFPP": FloatInfo("DFPP", "Df''", 0.0),
"ITY": EnumInfo("ITY", "form factor definition", 0,
{0: "user providing sin(theta)/lambda dependent part of X-rays form factor",
-1: "user defining a table of form factor sin(theta)/lambda - f",
2: "using tabulated coefficient for sin(theta)/lambda - f"},
[0, -1, 2]),
}
ObjectDict = {}
ObjectListDict = {}
def __init__(self, parent):
"""
inheriting initialization
"""
ScatterFactor.__init__(self, parent)
formfactorxray = FormFactorXray(None)
self.set('FormFactor', formfactorxray)
return
class SymmetryMatrixAlpha(SymmetryMatrix):
ParamDict = {
"X": StringInfo("X", "X-component", ""),
"Y": StringInfo("Y", "Y-component", ""),
"Z": StringInfo("Z", "Z-component", ""),
}
ObjectDict = {}
ObjectListDict = {}
def __init__(self, parent):
"""
initialization: extending
"""
SymmetryMatrix.__init__(self, parent)
return
class RotationalMatrixAlpha(RotationalMatrix):
ParamDict = {
"X": StringInfo("X", "X-component", ""),
"Y": StringInfo("Y", "Y-component", ""),
"Z": StringInfo("Z", "Z-component", ""),
"Phase": FloatInfo("Phase", "Phase", 0.0, "2PI"),
}
ObjectDict = {}
ObjectListDict = {}
def __init__(self, parent):
"""
initialization: extending
"""
RotationalMatrix.__init__(self, parent)
return
class SimulatedAnnealing(RietveldClass):
# Simulated (Cry=3): Simulated annealing parameters
ParamDict = {
"T_INI":
FloatInfo("T_INI", "Initial Temperature", 0.0, '', 0.0, None),
"ANNEAL":
FloatInfo("ANNEAL",
"Reduction Factor of the temperature between the MC Cycles",
0.9, '', 0.0, None),
"ACCEPT":
FloatInfo("ACCEPT", "Lowest percentage of accepted configurations",
0.5, '', 0.0, None),
"NUMTEMPS":
IntInfo("NUMTEMPS", "Maximum number of temperature", 1, 1, None),
"NUMTHCYC":
IntInfo("NUMTHCYC", "Number of Monte Carlo Cycles", 1, 1, None),
"INITCONF":
EnumInfo("INITCONF", "Initial Configuration", 0, {
0: "random",
1: "given"
}, [0, 1]),
"SEED_Random":
StringInfo("SEED_Random", "Randomized Seed", ""),
"NCONF":
IntInfo("NCONF", "Number of Configuration", 1, 1, None),
"NSOLU":
IntInfo("NSOLU", "Number of Solution", 1, 1, None),
"NREFLEXF":
IntInfo("NREFLEXF", "Number of Reflection", 0, 0, None),
"NSCALE":
IntInfo("NSCALEF", "Scale Factor", 0),
"NALGOR":
EnumInfo(
"NALGOR", "Algorithm", 0, {
0: "Corana algorithm",
1: "Corana algorithm is selected using as initial steps",
2: "Conventional algorithm using fixed steps"
}, [2, 0, 1]),
"ISWAP":
IntInfo("ISWAP", "Interchange of Atoms", 0, 0, None),
}
ObjectDict = {}
ObjectListDict = {
"CPL": ObjectInfo("CPLList", "CPL", 0, None),
}
def __init__(self, Parent):
RietveldClass.__init__(self, Parent)
return
class Ion(RietveldClass):
"""
Ion for anion or cation
"""
ParamDict = {
"Symbol": StringInfo("Symbol", "Ion's symbol", ""),
"number": IntInfo("number", "number of ion", 0),
}
ObjectDict = {}
ObjectListDict = {}
def __init__(self, parent):
"""
initialization
"""
RietveldClass.__init__(self, parent)
return
def setIon(self, symnum):
"""
set ion's information
synumber -- string, the symbol+number, such as O+2
return -- None
"""
verifyType(symnum, str)
# split by + or -
if symnum.count("+") == 1:
terms = symnum.split("+")
number = int(terms[1])
elif symnum.count("-") == 1:
terms = symnum.split("-")
number = -1 * int(terms[1])
else:
errmsg = "%-30s: Input parameter 'symnum' is invalid! symnum = %-15s"%\
(self.__class__.__name___+".setIon( )", symnum)
raise RietError, errmsg
self.set("Symbol", terms[0])
self.set("number", number)
return
class Fit(RietveldClass):
"""
Fit contains information for a single Rietveld refinement configuration
attributes
banklist -- list of integers, index of banks used
"""
ParamDict = {
# general information
"Name": StringInfo("Name", "Fit Name", "new fit"), \
"Information": StringInfo("Information", "Fit Information", ""), \
"physparam": FloatInfo("physparam", "External Parameter", 0.0), \
# refinement solution information
"Chi2": FloatInfo("Chi2", "Chi^2", 0.0, '', 0.0, None),
# refinement setup information
"Dum": EnumInfo("Dum", "Divergence Control", 0, \
{0: "Regular", \
1: "criterion of convergence is not applied when shifts are lower than a fraction of standard deviation", \
2: "stopped in case of local divergence", \
3: "reflection near excluded regions are not taken into account for Bragg R-factor"}, \
[0, 1, 2, 3]),
"Ias": EnumInfo("Ias", "Reordering of Reflections", 0,
{0: "At First Cycle",
1: "At Each Cycle"},
[0, 1]),
"Cry": EnumInfo("Cry", "Job and Refinement Algorithm", 0, \
{0: "Rietveld refinement", \
1: "Refinement of single crystal data or integrated intensity of powder data", \
2: "No least-square method is applied (Monte Carlo)", \
3: "Simulated Annearing"}, \
[0, 1, 2, 3]),
"Opt": BoolInfo("Opt", "Calculation Optimization", False),
"Aut": BoolInfo("Aut", "Automatic Mode for Refinement Codes Numbering", False),
"NCY": IntInfo("NCY", "Refinement Cycle Number", 1, 1, None),
"Eps": FloatInfo("Eps", "Convergence Precision", 0.1, '', 0.0, None),
"R_at": FloatInfo("R_at", "Atomic Relaxation Factor", 1.0),
"R_an": FloatInfo("R_an", "Anisotropic Relaxation Factor", 1.0),
"R_pr": FloatInfo("R_pr", "Profile Relaxation Factor", 1.0),
"R_gl": FloatInfo("R_gl", "Global Pamameter Relaxation Factor", 1.0),
# output options
"Mat": EnumInfo("Mat", "Correlation Matrix Output", 1,
{0: "no action", \
1: "written in CODFIL.dat", \
2: "diagonal of least square matrix is printed at every cycle"},
[0,1,2]),
"Pcr": EnumInfo("Pcr", "Upate .pcr file after refinement", 1,
{1: "CODFIL.pcr is re-written with updated parameters",
2: "A new input file is generated named CODFIL.new"},
[2,1]),
"Syo": EnumInfo("Syo", "Output of the symmetry operator", 0,
{0: "no action",
1: "symmetry operators are written in CODFIL.out"},
[0,1]),
"Rpa": EnumInfo("Rpa", "Output .rpa file", 1,
{-1:".cif file",
0: "no action",
1: ".rpa file",
2: ".sav file"},
[0,1,2]),
"Sym": EnumInfo("Sym", "Output .sym file", 1,
{0: "no cation",
1: "prepare CODFIL.sym"},
[0,1]),
"Sho": BoolInfo("Sho", "Reduced output", False),
"Nre": IntInfo("Nre", "Number of restrainted parameters", 0),
}
ObjectDict = {
"Refine": ObjectInfo("Refine", "Refine"),
}
ObjectListDict = {
#"MonteCarlo": ObjectInfo("MonteCarlo", "MonteCarlo", 0, 1),
#"SimulatedAnnealing": ObjectInfo("SimulatedAnneaing", "SimulatedAnnealing", 0, 1),
"Pattern": ObjectInfo("PatternList", "Pattern", 1, None),
"Phase": ObjectInfo("PhaseList", "Phase", 1, None),
"Contribution": ObjectInfo("ContributionList", "Contribution", 0,
None),
}
def __init__(self, parent):
"""
initialization: add a new Fit, and create the refine object belonged to this fit object
"""
RietveldClass.__init__(self, parent)
# init refine
refineobj = Refine(None)
self.set("Refine", refineobj)
# bank information: This is for some specific pattern data such as ".gss" with different bank
self.banklist = []
# internal data
self.key = ''
self._param_indices = {}
self.updateParamIndices(self._param_indices)
return
def __str__(self):
"""
customerized output
"""
rstring = ""
rstring += RietveldClass.__str__(self)
return rstring
def getContribution(self, p1, p2):
"""
get the contribution by pattern and phase
p1: pattern/phase
p2: phase/pattern
return -- (1) Contribution
(2) None if not exist
"""
from diffpy.pyfullprof.pattern import Pattern
from diffpy.pyfullprof.phase import Phase
from diffpy.pyfullprof.contribution import Contribution
phase = None
pattern = None
if isinstance(p1, Pattern) and isinstance(p2, Phase):
pattern = p1
phase = p2
elif isinstance(p1, Phase) and isinstance(p2, Pattern):
pattern = p2
phase = p1
else:
raise NotImplementedError, "fit.getContribution: p1 and p2 must be phase and pattern or pattern and phase"
contributionlist = self.get("Contribution")
for contribution in contributionlist:
if contribution._ParentPhase == phase and contribution._ParentPattern == pattern:
return contribution
# if return will be None, then print out some debugging information
if 0:
contributionlist = self.get("Contribution")
dbmsg = "pyfullprof.core.Fit.getContribution(): Cannot Find a Matching Contribution!\n"
dbmsg += "%-20s: Phase -- %-30s Pattern -- %-30s\n" % (
"Input", repr(phase), repr(pattern))
counts = 0
for contribution in contributionlist:
addrphase = repr(contribution._ParentPhase)
addrpattern = repr(contribution._ParentPattern)
dbmsg += "%-20s: Phase -- %-30s Pattern -- %-30s\n" % (
"Contribution " + str(counts), addrphase, addrpattern)
counts += 1
print dbmsg
return None
def getParamList(self):
return self.Refine.constraints
def updateFit(self, newfit):
"""Update self with the new fit, which is the resultant Fit instance.
newfit -- an instance of Fit
"""
# update Chi^2
for paramname in self.ParamDict:
self.set(paramname, newfit.get(paramname))
for constraint in self.get("Refine").constraints[:]:
if constraint.on:
path = constraint.path
val = newfit.getByPath(path)
self.setByPath(path, val)
#FIXME: it is a get-around of the engine bug
newconstraint = newfit.getConstraintByPath(path)
if newconstraint is not None:
constraint.sigma = newconstraint.sigma
for constraint in self.get("Refine").constraints[:]:
print " %-10s %-15s %-15.6f+/- %-11.6f" \
% ( constraint.name, constraint.varName, constraint.getValue(),
constraint.sigma)
print "\n"
return
def validate(self, mode="Refine"):
"""
validate the parameters, subclass and container to meet the refinement requirement
Arguments
- mode : string, validate mode, (Refine, Calculate)
Return : Boolean
"""
rvalue = RietveldClass.validate(self)
errmsg = ""
# I. Synchronization of FulProf Parameter & Check Data File Existence
for pattern in self.get("Pattern"):
# 2.1 data file existence
if mode == "Refine":
exist = checkFileExistence(pattern.get("Datafile"))
if not exist:
rvalue = False
errmsg += "Data File %-10s Cannot Be Found\n" % (
pattern.get("Datafile"))
# 2. Nre
nre = 0
for variable in self.get("Refine").get("Variable"):
if variable.get("usemin") is True:
nre += 1
# End -- for variable in ...
self.set("Nre", nre)
# Check Validity
# 1. parameter
if self.get("NCY") < 1:
rvalue = False
# 2. .hkl file
# the reason why not put the checking .hkl file in Contribution is that
# there is a sequence number related between pattern sequence
# within contribution, it is hard to get this number
for pattern in self.get("Pattern"):
# scan all Phases
pindex = 1
fnamer = pattern.get("Datafile").split(".")[0]
usehkl = False
for phase in self.get("Phase"):
# get contribution
contribution = self.getContribution(pattern, phase)
if contribution is not None and contribution.get("Irf") == 2:
# using reflection
usehkl = True
# check single phase/contribution hkl file
hklfname = fnamer + str(pindex) + ".hkl"
try:
hklfile = open(hklfname, "r")
hklfile.close()
except IOError, err:
# if no such file exits, update Irf to 0
contribution.set("Irf", 0)
# error message output
errmsg += "Fit.validate(): Reflection File %-10s Cannot Be Found: " % (
hklfname)
errmsg += "Chaning Contribution.Irf to 0 ... Related to Phase[%-5s]" % (
pindex)
print errmsg
# End -- if contribution is not None and Irf == 2:
pindex += 1
# End -- for phase in self.get("Phase"):
if usehkl is True:
# check overall hkl file
hklfname = fnamer + ".hkl"
try:
hklfile = open(hklfname, "r")
hklfile.close()
except IOError, err:
# if no such file exists, update all Irf to 0
for contribution in self.get("Contribution"):
contribution.set("Irf", 0)
class Pattern(RietveldClass):
"""
Pattern contains all the information for a single pattern
for Rietveld refinement
attributes:
_contributionlist -- list, containing related Contribution instance
"""
ParamDict = {
"Name": StringInfo("Name", "Name", "Pattern"),
"W_PAT": FloatInfo("W_PAT", "Pattern Weight", 1.0, "", 0.0, 1.0),
#"Chi2": FloatInfo("Chi2", "Chi^2", 1.0E+8),
"Scale": RefineInfo("Scale", "Scale factor", 1.0E-3),
"Rp": FloatInfo("Rp", "Rp", 1.0E+8),
"Rwp": FloatInfo("Rwp", "Rwp", 1.0E+8),
"Bkpos": FloatInfo("Bkpos", "Origin of Polynomial Background", 47.0, "", 1.0E-8, None),
"Wdt": FloatInfo("Wdt", "Cut-off of the peak profile tails", 8.0),
"Job": EnumInfo("Job", "Radiation Type", -1,
{0: "X-ray",
1: "Neutron Constant Wave",
-1: "Neutron T.O.F. and Magnetic",
-3: "Pattern Calculation Neutron T.O.F",
2: "Pattern Calculation X-ray",
3: "Pattern Calculation Neutron Constant Wavelength"},
[-1, 1, 0, -3, 2, 3]),
"Nba": EnumInfo("Nba", "Background Type", 0,
{0: "Polynomial",
1: "From CODFIL.bac",
-1: "Debye-like Polynomial",
-2: "Fourier Filtering",
-3: "Read 6 Additional Polynomial Coefficients",
2: "Linear Interpolation with given background",
-4: "Polynomial",
-5: "Cubic Spline Interpolation"},
[0, -1, -3, -2, 2, -4, 1, -5]),
"NbaPoint": IntInfo("NbaPoint", "number of points for user-defined background", 0, 0, None),
"Nor": EnumInfo("Nor", "Preferred Orientation Function", -1,
{0: "Preferred Orientation No.1",
1: "Preferred Orientation No.2",
-1: "No preferred orientation"},
[0, 1, -1]),
"Iwg": EnumInfo("Iwg", "Refinement Weight Scheme", 0,
{0: "Standard Least Square Refinement",
1: "Maximum Likelihood Refinement",
2: "Unit Weights"},
[0, 1, 2]),
"Res": EnumInfo("Res", "Resolution Function", 0,
{0: "Not Given",
1: "Given by File with Resolution Function 1",
2: "Given by File with Resolution Function 2",
3: "Given by File with Resolution Function 3",
4: "List of value 2theta, H_G(2theta), H_L(2theta)",
5: "User Input Resolution File",},
[0, 1, 2, 3, 4, 5]),
"Ste": IntInfo("Ste", "Number of data points reduction factor in powder data", 0, 0, None),
"Uni": EnumInfo("Uni", "Scattering Variable Unit", 1,
{0: "2theta degree",
1: "T.O.F in microseconds",
2: "Energy in keV"},
[1, 0, 2]),
"Cor": EnumInfo("Cor", "Intensity Correction", 0,
{0: "No Correction",
1: "file with intensity correction is read",
2: "file with coefficients of empirical function"},
[0, 1, 2]),
"Datafile": StringInfo("Datafile", "Powder Data File", ""),
"Instrumentfile": StringInfo("InstrumentFile", "Instrument file fullpath", ""),
"Resofile": StringInfo("Resofile", "Resolution File", ""),
# output
"Ipr": EnumInfo("Ipr", "Profile integrated intensities output", 3,
{0: "no action",
1: "observed and calculated proile intensities written in CODFIL.out",
2: "CODFILn.sub with the calculated profile for each phase are generated",
3: "CODFILn.sub with the calculated profile for each phase are generated, background added to each file"},
[0, 1, 2, 3]),
"Ppl": EnumInfo("Ppl", "Various types of calculated output - I", 0,
{0: "No action",
1: "MORE TO ADD",
2: "MORE TO ADD",
3: "MORE TO ADD"},
[0, 1, 2, 3]),
"Ioc": EnumInfo("Ioc", "Various types of calculated outpout - II", 0,
{0: "No action",
1: "MORE TO ADD",
2: "MORE TO ADD"},
[0, 1, 2]),
"Ls1": EnumInfo("Ls1", "Various types of calculated outpout - III", 0,
{0: "No action",
1: "MORE TO ADD"},
[0, 1]),
"Ls2": EnumInfo("Ls2", "Various types of calculated outpout - IV", 0,
{0: "No action",
1: "MORE TO ADD",
4: "MORE TO ADD",
5: "unknown operation"},
[0, 1, 4, 5]),
"Ls3": EnumInfo("Ls3", "Various types of calculated outpout - V", 0,
{0: "No action",
1: "MORE TO ADD"},
[0, 1]),
"Prf": EnumInfo("Prf", "Output Format of Rietveld Plot File CODFIL.prf", 0,
{
0: "no action",
-3: "WinPlot Output",
1: "MORE TO ADD",
2: "MORE TO ADD",
3: "MORE TO ADD",
4: "pl1 File Output"},
[0, -3, 1, 2, 3, 4]),
"Ins": EnumInfo("Ins", "Data File Format", 0,
{0: "Data in free format",
1: "D1A/D2B format",
2: "D1B old format",
3: "Format corresponding to the ILL instruments D1B and D20",
4: "Brookaven synchrotron data",
-4: "Brookaven synchrotron data given by DBWS program",
5: "GENERAL FORMAT for TWO AXIS instrument",
6: "D1A/D2B standard format prepared by D1A(D2B) SUM (ILL), ADDET(LLB), MIPDSUM(LLB) or equivalent programs",
7: "Files from D4 or D20L",
8: "Data from DMC at Paul Scherrer Institute",
10: "X, Y, Sigma format with header lines",
11: "Data from varaible time X-ray collection",
12: "data file conforming to GSAS standard data file",
14: "multiple bank data file from GEM (ISIS).gss file"},
[0, 1, 2, 3, 4, -4, 5, 6, 7, 8, 10, 11, 12, 14]),
"Hkl": EnumInfo("Hkl", "Output of Reflection List in CODFIL.hkl", 0,
{0: "no action",
1: "MORE TO ADD",
2: "MORE TO ADD",
-2: "xpc add",
3: "MORE TO ADD",
-3: "MORE TO ADD",
4: "MORE TO ADD",
5: "MORE TO ADD"},
[0, 1, 2, 3, -3, 4, 5]),
"Fou": EnumInfo("Fou", "Output of CODEFILE.fou Files", 0,
{0: "no action",
1: "MORE TO ADD",
2: "MORE TO ADD",
3: "MORE TO ADD",
4: "MORE TO ADD"},
[0, 1, 2, 3, 4]),
"Ana": EnumInfo("Ana", "Reliability of the refinement analysis", 0,
{0: "no action",
1: "provides an analysis of the refinement at the end of summary file"},
[0, 1]),
"Nex": IntInfo("Nex", "Excluded Region Number", 0),
"Nsc": IntInfo("Nsc", "Scatteirng Factor Number", 0),
# Histogram usage flag, this flag is added here to be compatible with GSAS
"ISUSED" : BoolInfo("ISUSED",
'True if pattern is used in the refinement',
default=True),
}
ObjectDict = {
"LPFactor": ObjectInfo("LPFactor", "LPFactor"),
"Background": ObjectInfo("Background", "Background"),
}
ObjectListDict = {
"ExcludedRegion": ObjectInfo("SetExcludedRegion", "ExcludedRegion", 0, None),
"ScatterFactor": ObjectInfo("SetScatterFactor", "ScatterFactor", 0, None),
}
def __init__(self, Parent):
RietveldClass.__init__(self, Parent)
"""
init subclass
"""
background = Background(None)
self.set("Background", background)
lpfactor = LPFactor(None)
self.set("LPFactor", lpfactor)
# init attributes
self._contributionlist = []
self._reflections = {}
return
def set(self, param_name, value, index=None):
"""
function: set value to parameter 'param'
param_name: parameter name, can be (1) parameter name (2) subclass name
value : (1) corresponding python build-in type
(2) an object reference
index: for the location in ObjectListDict/ParamListDict
"""
rvalue = RietveldClass.set(self, param_name, value, index)
if param_name == "Nba":
nba = self.get(param_name)
background = None
if nba == 0:
background = BackgroundPolynomial(self)
background.set("Order", 6)
elif nba == 1:
background = BackgroundPolynomial(self)
background.set("Order", 4)
elif nba == -1:
background = BackgroundDebye(self)
elif nba == -2:
background = BackgroundFourierwindow(self)
elif nba == -3:
background = BackgroundPolynomial(self)
background.set("Order", 12)
elif nba == -4:
background = BackgroundPolynomial(self)
background.set("Order", 12)
elif nba == 2:
background = BackgroundUserDefinedLinear(self)
elif nba == -5:
background = BackgroundUserDefinedCubic(self)
else:
errmsg = "Nba = %-10s is not supported" % (nba)
raise RietError, errmsg
if background is not None:
self.set("Background", background)
else:
pass
return rvalue
def addBackgroundPoints(self, bkgdpointlist):
"""
add Background point (x, intensity) to this InterpolatedBackground instance
Arguments:
bkgdpointlist -- list of 2-tuple(x, intensity) for pre-selected background points
Return -- None
"""
background = self.get("Background")
for bkgdtup in bkgdpointlist:
# 1. verify the input list term
try:
pos = bkgdtup[0]
bck = bkgdtup[1]
except IndexError, err:
errmsg = "%-30s: Input Error! Element in input bkgdpointlist is not 2-tuple\n"% \
(self.__class__.__name__+"addBackgroundPoints()")
errmsg += "Error message: %-40s"% (err)
raise RietError(errmsg)
# 2. make Core objects
background.set("POS", pos)
background.set("BCK", bck)
# END -- for bkgdtup in bkgdpointlist:
return
class AngleRestraint(RietveldClass):
"""
soft distance contraints
attribute:
- CATOD1 = ""
- CATOD2 = ""
- Itnum1 = 0
- Itnum2 = 0
- T1 = 0.0
- T2 = 0.0
- T3 = 0.0
- t1 = 0.0
- t2 = 0.0
- t3 = 0.0
- Angl = 0.0
- Sigma = 0.0
"""
ParamDict = {
"CATOD1":
StringInfo("CATOD1", "Atom 1", ""),
"CATOD2":
StringInfo("CATOD2", "Atom 2", ""),
"CATOD3":
StringInfo("CATOD3", "Atom 3", ""),
"ITnum1":
IntInfo("ITnum1", "symmetry operator number 1", 0),
"ITnum2":
IntInfo("ITnum2", "symmetry operator number 2", 0),
"T1":
FloatInfo("T1", "translation part 1 of symmetry operator of ITnum1",
0.0),
"T2":
FloatInfo("T2", "translation part 2 of symmetry operator of ITnum1",
0.0),
"T3":
FloatInfo("T3", "translation part 3 of symmetry operator of ITnum1",
0.0),
"t1":
FloatInfo("t1", "translation part 1 of symmetry operator of ITnum2",
0.0),
"t2":
FloatInfo("t2", "translation part 2 of symmetry operator of ITnum2",
0.0),
"t3":
FloatInfo("t3", "translation part 3 of symmetry operator of ITnum2",
0.0),
"Angle":
FloatInfo("Angle", "required angle", 1.0),
"Sigma":
FloatInfo("Sigma", "required angle deviation", 1.0),
}
ObjectDict = {}
ObjectListDict = {}
def __init__(self):
"""
initalization
"""
RietveldClass.__init__(self, parent)
return
class Phase(RietveldClass):
"""
Phase contains all the information only belongs to a single phase
attributes
_contributionlist -- list instance containing all the contribution related to this Phase
"""
ParamDict = {
"Name":
StringInfo("Name", "Phase Name", ""),
"Jbt":
EnumInfo(
"Jbt", "Structure factor model and refinement method", 0, {
0:
"treated with Rietveld method, refining a given structural model",
1:
"treated with Rietveld method, pure magnetic",
-1:
"treated with Rietveld method, pure magentic with magnetic moments",
2:
"profile matching method with constant scale factor",
-2:
"profile matching method with constant scale factor and given CODFiln.hkl",
3:
"profile matching method with constant relative intensities for the current phase",
-3:
"profile matching method with given structure factor in CODFiln.hkl",
4:
"intensities of nuclear reflection from Rigid body groups",
5:
"intensities of magnetic reflection from conical magnetic structure in real space",
10:
"nuclear and magnetic phase with Cartesian magnetic moment",
-10:
"nuclear and magnetic phase with spherical magnetic moment",
15:
"commensurate modulated crystal structure with Cartesian magnetic components",
-15:
"commensurate modulated crystal structure with spherical magnetic components"
}, [0, 1, -1, 2, -2, 3, -3, 4, 5, 10, -10, 15, -15]),
"Comment":
StringInfo("Comment", "Allowed Options", ""),
"a":
RefineInfo("a", "a", 1.0),
"b":
RefineInfo("b", "b", 1.0),
"c":
RefineInfo("c", "c", 1.0),
"alpha":
RefineInfo("alpha", "alpha", 90.0),
"beta":
RefineInfo("beta", "beta", 90.0),
"gamma":
RefineInfo("gamma", "gamma", 90.0),
"Spacegroup":
StringInfo("Spacegroup", "Space group", ""),
"ATZ":
FloatInfo("ATZ", "weight percent coefficient", 1.0, "", 0.0, None),
"Isy":
EnumInfo(
"Isy", "Symmetry opertor reading control", 0, {
0:
"symmetry operators generated automatically from the space group symbol",
1: "user-input symmetry operator",
-1: "user-input symmetry operator",
2: "basis function"
}, [0, 1, -1, 2]),
"Str":
EnumInfo(
"Str", "size strain reading control", 0, {
0: "using selected models",
1: "generalized formulation of strains parameters be used",
-1:
"using selected models and generalized formulation of strains parameters be used",
2: "generalized formulation of size parameters be used",
3:
"generalized formulation of strain and size parameters be used"
}, [0, 1, -1, 2, 3]),
"Jvi":
EnumInfo("Jvi", "Output options", 0, {
0: "no operation",
3: "unknow operation",
1: "",
2: "",
11: ""
}, [0, 3, 1, 2, 11]),
"Jdi":
EnumInfo("Jdi", "Crystallographic output options", 0, {
0: "",
1: "",
-1: "",
2: "",
3: "",
4: ""
}, [0, 1, -1, 2, 3, 4]),
"Dis_max":
FloatInfo("Dis_max", "maximum distance between atoms to output", 0.0),
"Ang_max":
FloatInfo("Ang_max", "maximum angle between atoms to output", 0.0),
"BVS":
StringInfo("BVS", "BVS calculation flag", ""),
"Tolerance":
FloatInfo("Tolerance", "Tolerance for the ionic radius", 0.0, "%"),
"Hel":
BoolInfo("Hel",
"Control to constrain a magnetic structure to be helicoidal",
False),
"Sol":
BoolInfo("Sol", "Additional hkl-dependent shifts reading control",
False),
"Nat":
IntInfo("Nat", "Atom Number", 0, 0, None),
"Dis":
IntInfo("Dis", "distance restraint number", 0, 0, None),
"MomMA":
IntInfo("MomMA", "number of angle/magnetic restraint", 0, 0, None),
"MomMoment":
IntInfo("MomMoment", "number of magnetic restraints", 0, 0, None),
"MomAngles":
IntInfo("MomAngles", "number of angle restraints", 0, 0, None),
"Furth":
IntInfo("Furth", "user defined parameter number", 0, 0, None),
"Nvk":
IntInfo("Nvk", "number of propagation vector", 0),
"More":
BoolInfo("More", "flag for using Jvi, Jdi, Hel, Sol, Mom and Ter",
False),
"N_Domains":
IntInfo("N_Domains", "Number of Domains/twins", 0, 0, None),
}
ObjectDict = {
"OperatorSet": ObjectInfo("OperatorSet", "OperatorSet"),
}
ObjectListDict = {
"TimeRev":
ObjectInfo("TimeRev", "TimeRev", 0, 1),
"Atom":
ObjectInfo("SetAtom", "Atom", 0, None),
"PropagationVector":
ObjectInfo("SetPropagationVector", "PropagationVector", 0, None),
"DistanceRestraint":
ObjectInfo("SetDistanceRestraint", "DistanceRestraint", 0, None),
"AngleRestraint":
ObjectInfo("SetAngleRestraint", "AngleRestraint", 0, None),
"MomentRestraint":
ObjectInfo("SetMomentRestraint", "MomentRestraint", 0, None),
"TransformationMatrixSet":
ObjectInfo("TransformationMatrixSet", "TransformationMatrixSet", 0, 1),
}
def __init__(self, parent):
"""
initialization:
"""
RietveldClass.__init__(self, parent)
# initialize subclass-object
operatorset = OperatorSet(self)
self.set("OperatorSet", operatorset)
# initialize attributes
self._contributionlist = []
return
def isCrystalPhase(self):
"""
tell the user whether this phase is a crystal phase or not
Return -- True/False
"""
jbt = self.get("Jbt")
if jbt == 0 or jbt == 2:
rvalue = True
else:
rvalue = False
return rvalue
def needAtoms(self):
jbt = self.get("Jbt")
if jbt == 2:
return False
else:
return True
def addContribution(self, contribution):
"""
add a Contribution pertinent to this phase
return -- None
contribution -- Contribution instance
"""
from diffpy.pyfullprof.contribution import Contribution
verifyType(contribution, Contribution)
self._contributionlist.append(contribution)
return
def getContribution(self):
"""
get the list of Contribution of this phase
return -- list of Contribution
"""
return self._contributionlist
def delContribution(self, contribution):
"""
remove the Contribution instance from the Contribution-list
return -- None
contribution -- instance of Contribution
Exception
1. if contribution is not in self._contributionlist
"""
verifyType(contribution, Contribution)
self._contributionlist.remove(contribution)
return
def shiftOrigin(self, dx, dy, dz):
"""
for the Space group with multiple origin, the implementation in FullProf
is to shift the position of each atom by a specified amount
return -- None
dx -- float, -1 < dx < 1
dy -- float, -1 < dy < 1
dz -- float, -1 < dz < 1
"""
verifyType(dx, float)
verifyType(dy, float)
verifyType(dz, float)
# check range
if abs(dx) > 1 or abs(dy) > 1 or abs(dz) > 1:
errmsg = "Phase.shiftOrigin(%-5s, %-5s, %-5s), Shift amount our of range"\
(str(dx), str(dy), str(dz))
raise RietError(errmsg)
# set shift
for atom in self.get("Atom"):
atom.shiftPosition(dx, dy, dz)
return
def set(self, param_name, value, index=None):
"""
Phase extending RietveldClass.set() method
Arguments:
param_name -- string, parameter name
value -- instance, value to set
"""
rvalue = RietveldClass.set(self, param_name, value, index=index)
if param_name == "Jvi":
self.set("More", True)
elif param_name == "Jdi":
self.set("More", True)
elif param_name == "Hel":
self.set("More", True)
elif param_name == "Sol":
self.set("More", True)
elif param_name == "Mom":
self.set("More", True)
elif param_name == "Ter":
self.set("More", True)
return rvalue
def validate(self):
"""
validate of class Phase
"""
rvalue = RietveldClass.validate(self)
errmsg = ""
# FullProf parameter synchronization
# atom
nat = len(self.get("Atom"))
self.set("Nat", nat)
# dis
dis = len(self.get("DistanceRestraint"))
self.set("Dis", dis)
# momma
ang = len(self.get("AngleRestraint"))
mom = len(self.get("MomentRestraint"))
if ang != 0 and mom != 0:
raise NotImplementedError, "Angular Restraint and Moment Restraint cannot be used simultaneously"
self.set("MomMA", ang + mom)
# nvk
nvk = len(self.get("PropagationVector"))
self.set("Nvk", nvk)
# Situation validation
# 1. Jbt and Atom Number
jbt = self.get("Jbt")
if abs(jbt) != 2 and nat == 0:
# not Le-Bail (profile match)
rvalue = False
errmsg += "No Atom is defined while Jbt = %-5s (Not Le-Bail)" % (
jbt)
# error message output
if errmsg != "":
prtmsg = "Phase Invalid Setup: %-60s" % (errmsg)
print prtmsg
if rvalue is not True:
print "Invalidity Deteced In %-10s" % (self.__class__.__name__)
return rvalue