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getData.py
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getData.py
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#!/usr/bin/python
from scipy.interpolate import interp1d
import sys
from parse import *
import yaml
import numpy as np
import cmath
#This function is designed to return refractive index for specified lambda
#for file in "tabluated n " format
def getDataN(yamlFile,lamb):
yamlStream=open(yamlFile,'r')
allData=yaml.load(yamlStream);
materialData=allData["DATA"][0]
assert materialData["type"]=="tabulated n"
matLambda=[]
matN=[]
matK=[]
#in this type of material read data line by line
for line in materialData["data"].split('\n'):
parsed=parse("{l:g} {n:g} {k:g}",line)
try:
n=parsed["n"]+1j*parsed["k"]
matLambda.append(parsed["l"]);
matN.append(parsed["n"])
matK.append(parsed["k"])
except TypeError as e:
sys.stderr.write("TypeError occured:"+str(e)+"\n")
matLambda=np.array(matLambda)
matN=np.array(matN)
matK=np.array(matK)
interN=interp1d(matLambda,matN)
interK=interp1d(matLambda,matK)
return [ cmath.sqrt(x) for x in interN(lamb)]
def getRangeN(yamlFile):
yamlStream=open(yamlFile,'r')
allData=yaml.load(yamlStream);
materialData=allData["DATA"][0]
assert materialData["type"]=="tabulated n"
#in this type of material read data line by line
matLambda=[]
for line in materialData["data"].split('\n'):
parsed=parse("{l:g} {n:g}",line)
try:
matLambda.append(parsed["l"])
except TypeError as e:
sys.stderr.write("TypeError occured:"+str(e)+"\n")
return (min(matLambda),max(matLambda))
#This function is designed to return refractive index for specified lambda
#for file in "tabluated nk " format
def getDataNK(yamlFile,lamb):
yamlStream=open(yamlFile,'r')
allData=yaml.load(yamlStream);
materialData=allData["DATA"][0]
assert materialData["type"]=="tabulated nk"
matLambda=[]
matN=[]
matK=[]
#in this type of material read data line by line
for line in materialData["data"].split('\n'):
parsed=parse("{l:g} {n:g} {k:g}",line)
try:
n=parsed["n"]+1j*parsed["k"]
matLambda.append(parsed["l"]);
matN.append(parsed["n"])
matK.append(parsed["k"])
except TypeError as e:
sys.stderr.write("TypeError occured:"+str(e)+"\n")
matLambda=np.array(matLambda)
matN=np.array(matN)
matK=np.array(matK)
interN=interp1d(matLambda,matN)
interK=interp1d(matLambda,matK)
return [ x for x in (interN(lamb)+1j*interK(lamb)) ]
def getRangeNK(yamlFile):
yamlStream=open(yamlFile,'r')
allData=yaml.load(yamlStream);
materialData=allData["DATA"][0]
assert materialData["type"]=="tabulated nk"
#in this type of material read data line by line
matLambda=[]
for line in materialData["data"].split('\n'):
parsed=parse("{l:g} {n:g} {k:g}",line)
try:
matLambda.append(parsed["l"])
except TypeError as e:
sys.stderr.write("TypeError occured:"+str(e)+"\n")
return (min(matLambda),max(matLambda))
##this function is desined to get data from files in formula1 format
def getDataF1(yamlFile,lamb):
yamlStream=open(yamlFile,'r')
allData=yaml.load(yamlStream);
materialData=allData["DATA"][0]
assert materialData["type"]=="formula 1"
dataRange=np.array(map(float,materialData["range"].split()));
coeff=np.array(map(float,materialData["coefficients"].split()));
n=0
if min(lamb)>=dataRange[0] or max(lamb)<=dataRange[1]:
for i in reversed(range(1,np.size(coeff),2)):
n=n+((coeff[i]*lamb**2)/(lamb**2-coeff[i+1]**2))
else:
raise Exception("OutOfBands","No data for this material for this l")
n=n+coeff[0]+1
epsRes=[]
for oneN in n:
epsRes.append(cmath.sqrt(oneN))
return epsRes
##this function is desined to get data from files in formula2 format
def getDataF2(yamlFile,lamb):
yamlStream=open(yamlFile,'r')
allData=yaml.load(yamlStream);
materialData=allData["DATA"][0]
assert materialData["type"]=="formula 2"
dataRange=np.array(map(float,materialData["range"].split()));
coeff=np.array(map(float,materialData["coefficients"].split()));
n=0
if min(lamb)>=dataRange[0] or max(lamb)<=dataRange[1]:
for i in reversed(range(1,np.size(coeff),2)):
n=n+((coeff[i]*lamb**2)/(lamb**2-coeff[i+1]))
else:
raise Exception("OutOfBands","No data for this material for this l")
n=n+coeff[0]+1
nres=[]
for oneN in n:
nres.append(cmath.sqrt(oneN))
return nres
##this function is desined to get data from files in formula3 format
def getDataF3(yamlFile,lamb):
yamlStream=open(yamlFile,'r')
allData=yaml.load(yamlStream);
materialData=allData["DATA"][0]
assert materialData["type"]=="formula 3"
dataRange=np.array(map(float,materialData["range"].split()));
coeff=np.array(map(float,materialData["coefficients"].split()));
n=coeff[0]
if min(lamb)>=dataRange[0] and max(lamb)<=dataRange[1]:
for i in range(1,np.size(coeff),2):
n=n+coeff[i]*lamb**coeff[i+1]
else:
raise Exception("OutOfBands","No data for this material for lambda="+str(l))
nres=[]
for oneN in n:
nres.append(cmath.sqrt(oneN))
return nres
def getDataF4(yamlFile,lamb):
yamlStream=open(yamlFile,'r')
allData=yaml.load(yamlStream);
materialData=allData["DATA"][0]
assert materialData["type"]=="formula 4"
dataRange=np.array(map(float,materialData["range"].split()));
coeff=np.zeros(17)
coeff2=map(float,materialData["coefficients"].split());
for i in range(0,len(coeff2)):
coeff[i]=coeff2[i]
print coeff
n=coeff[0]
if min(lamb)>=dataRange[0] and max(lamb)<=dataRange[1]:
n=n+coeff[1]*lamb**coeff[2]/(lamb**2-coeff[3]**coeff[4])
n=n+coeff[5]*lamb**coeff[6]/(lamb**2-coeff[7]**coeff[8])
n=n+coeff[9]*lamb**coeff[10]
n=n+coeff[11]*lamb**coeff[12]
n=n+coeff[13]*lamb**coeff[14]
n=n+coeff[15]*lamb**coeff[16]
else:
raise Exception("OutOfBands","No data for this material("+yamlFile+" )for lambda="+str(lamb))
nres=[]
for oneN in n:
nres.append(cmath.sqrt(oneN))
return nres
def Error(BaseException):
pass
###this is general function to check data type, and run appropriate actions
def getData(yamlFile,lamb):
yamlStream=open(yamlFile,'r')
allData=yaml.load(yamlStream)
materialData=allData["DATA"][0]
if materialData["type"]=="tabulated nk":
return getDataNK(yamlFile,lamb)
elif materialData["type"]=="tabulated n":
return getDataN(yamlFile,lamb)
elif materialData["type"]=="formula 1":
return getDataF1(yamlFile,lamb)
elif materialData["type"]=="formula 2":
return getDataF2(yamlFile,lamb)
elif materialData["type"]=="formula 3":
return getDataF3(yamlFile,lamb)
elif materialData["type"]=="formula 4":
return getDataF4(yamlFile,lamb)
else:
# raise Error("UnsupportedDataType:This data type is currnetly not supported");
return np.zeros((1,0))
def getRange(yamlFile):
yamlStream=open(yamlFile,'r')
allData=yaml.load(yamlStream)
materialData=allData["DATA"][0]
if materialData["type"]=="tabulated nk":
return getRangeNK(yamlFile)
elif materialData["type"]=="tabulated n":
return getRangeN(yamlFile)
elif materialData["type"]=="formula 1":
return np.array(map(float,materialData["range"].split()))
elif materialData["type"]=="formula 2":
return np.array(map(float,materialData["range"].split()))
elif materialData["type"]=="formula 3" or materialData["type"]=="formula 4":
return np.array(map(float,materialData["range"].split()))
else:
# raise Error("UnsupportedDataType:This data type "+materialData["type"] +" is currnetly not supported");
return (0,0)
if __name__ == "__main__":
print "Direct tests:"
print "MyData="+str(getDataNK("database/main/Ag/Rakic.yml",1))+" ,test ~ 0.23 + 6.41j"
print "MyData="+str(getDataF3("database/other/doped crystals/Mg-LiTaO3/Moutzouris-e.yml",np.array([0.7473])))+" test ~"
print "MyData="+str(getDataF2("./database/main/CaCO3/Ghosh-o.yml",np.array([0.204])))+", test ~ 1.88"
print "Tests through general getData function "
print "MyData="+str(getData("database/main/Ag/Rakic.yml",1))
print "MyData="+str(getData("database/other/doped crystals/Mg-LiTaO3/Moutzouris-e.yml",np.array([0.7473])))
print "MyData="+str(getData("./database/main/CaCO3/Ghosh-o.yml",np.array([0.204])))