1 | # -*- coding: utf-8 -*- |
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2 | ########### SVN repository information ################### |
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3 | # $Date: 2014-12-27 11:14:59 -0600 (Sat, 27 Dec 2014) $ |
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4 | # $Author: vondreele $ |
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5 | # $Revision: 1620 $ |
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6 | # $URL: https://subversion.xray.aps.anl.gov/pyGSAS/trunk/imports/G2pwd_xye.py $ |
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7 | # $Id: G2pwd_xye.py 1620 2014-12-27 17:14:59Z vondreele $ |
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8 | ########### SVN repository information ################### |
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9 | ''' |
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10 | *Module G2pwd_FP: FullProf .dat data* |
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11 | ------------------------------------- |
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12 | |
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13 | Routine to read in powder data from a FullProf .dat file |
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14 | |
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15 | ''' |
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16 | |
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17 | from __future__ import division, print_function |
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18 | import os.path as ospath |
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19 | import numpy as np |
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20 | import GSASIIobj as G2obj |
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21 | import GSASIIpath |
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22 | GSASIIpath.SetVersionNumber("$Revision: 1620 $") |
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23 | class fp_ReaderClass(G2obj.ImportPowderData): |
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24 | 'Routines to import powder data from a FullProf 1-10 column .dat file' |
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25 | def __init__(self): |
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26 | super(self.__class__,self).__init__( # fancy way to self-reference |
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27 | extensionlist=('.dat',), |
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28 | strictExtension=False, |
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29 | formatName = 'FullProf .dat', |
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30 | longFormatName = 'FullProf 1-10 column .dat powder data file' |
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31 | ) |
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32 | self.scriptable = True |
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33 | |
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34 | # Validate the contents -- make sure we only have valid lines |
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35 | def ContentsValidator(self, filename): |
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36 | 'Look through the file for expected types of lines in a valid FullProf file' |
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37 | gotCcomment = False |
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38 | begin = True |
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39 | self.GSAS = False |
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40 | fp = open(filename,'r') |
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41 | for i,S in enumerate(fp): |
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42 | if i > 100: break |
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43 | if begin: |
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44 | if gotCcomment and S.find('*/') > -1: |
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45 | begin = False |
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46 | continue |
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47 | if S.strip().startswith('/*'): |
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48 | gotCcomment = True |
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49 | continue |
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50 | if S.lstrip()[0] in ["'",'#','!',]: |
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51 | continue #ignore comments, if any |
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52 | else: |
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53 | begin = False |
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54 | # valid line to read? |
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55 | vals = S.split() |
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56 | try: #look for start,step,stop card |
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57 | for j,val in enumerate(vals): |
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58 | num = float(val) |
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59 | if j == 2: |
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60 | break |
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61 | except ValueError: |
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62 | self.errors = 'Unexpected information in line: '+str(i+1) |
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63 | if all([ord(c) < 128 and ord(c) != 0 for c in str(S)]): # show only if ASCII |
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64 | self.errors += ' '+str(S) |
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65 | else: |
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66 | self.errors += ' (binary)' |
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67 | if i > 2: |
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68 | fp.close() |
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69 | return False |
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70 | fp.close() |
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71 | return True # no errors encountered |
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72 | |
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73 | def Reader(self,filename, ParentFrame=None, **unused): |
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74 | 'Read a FullProf file' |
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75 | x = [] |
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76 | y = [] |
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77 | w = [] |
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78 | gotCcomment = False |
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79 | begin = True |
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80 | steps = False |
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81 | Stop = False |
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82 | N = 0 |
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83 | fp = open(filename,'r') |
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84 | for i,S in enumerate(fp): |
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85 | self.errors = 'Error reading line: '+str(i+1) |
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86 | # or a block of comments delimited by /* and */ |
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87 | # or (GSAS style) each line can begin with '#' or '!' |
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88 | if begin: |
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89 | if gotCcomment and S.find('*/') > -1: |
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90 | self.comments.append(S[:-1]) |
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91 | begin = False |
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92 | continue |
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93 | if S.strip().startswith('/*'): |
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94 | self.comments.append(S[:-1]) |
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95 | gotCcomment = True |
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96 | continue |
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97 | if S.lstrip()[0] in ["'",'#','!',]: |
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98 | self.comments.append(S[:-1]) |
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99 | continue #ignore comments, if any |
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100 | else: |
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101 | begin = False |
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102 | # valid line to read |
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103 | if not steps: |
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104 | vals = S.replace(',',' ').split(None,4) |
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105 | if 'lambda' in S: |
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106 | self.instdict['wave'] = float(vals[1]) |
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107 | continue |
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108 | elif len(vals) >= 3: |
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109 | try: |
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110 | steps = True |
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111 | start = float(vals[0]) |
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112 | step = float(vals[1]) |
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113 | stop = float(vals[2]) |
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114 | if len(vals) > 3: |
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115 | self.comments.append(vals[3][:-1]) |
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116 | except: |
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117 | print('Skipping line ',S) |
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118 | continue |
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119 | elif i<3: |
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120 | print('Skipping header line ',S) |
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121 | continue |
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122 | vals = S.split() #data strings |
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123 | try: |
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124 | for j in range(len(vals)): |
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125 | x.append(start+N*step) |
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126 | f = float(vals[j]) |
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127 | if f <= 0.0: |
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128 | y.append(0.0) |
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129 | w.append(0.0) |
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130 | else: |
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131 | y.append(float(vals[j])) |
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132 | w.append(1.0/float(vals[j])) |
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133 | if x[-1] >= stop: |
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134 | Stop = True |
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135 | break |
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136 | N += 1 |
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137 | if Stop: |
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138 | break |
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139 | except ValueError: |
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140 | msg = 'Error parsing number in line '+str(i+1) |
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141 | if GSASIIpath.GetConfigValue('debug'): |
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142 | print (msg) |
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143 | print (S.strip()) |
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144 | break |
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145 | except: |
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146 | msg = 'Error in line '+str(i+1) |
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147 | if GSASIIpath.GetConfigValue('debug'): |
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148 | print (msg) |
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149 | print (S.strip()) |
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150 | break |
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151 | fp.close() |
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152 | N = len(x) |
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153 | if N <= 1: return False |
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154 | self.powderdata = [ |
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155 | np.array(x), # x-axis values |
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156 | np.array(y), # powder pattern intensities |
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157 | np.array(w), # 1/sig(intensity)^2 values (weights) |
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158 | np.zeros(N), # calc. intensities (zero) |
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159 | np.zeros(N), # calc. background (zero) |
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160 | np.zeros(N), # obs-calc profiles |
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161 | ] |
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162 | self.powderentry[0] = filename |
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163 | #self.powderentry[1] = pos # bank offset (N/A here) |
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164 | #self.powderentry[2] = 1 # xye file only has one bank |
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165 | self.idstring = ospath.basename(filename) |
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166 | # scan comments for temperature |
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167 | Temperature = 300 |
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168 | for S in self.comments: |
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169 | if 'Temp' in S.split('=')[0]: |
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170 | try: |
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171 | Temperature = float(S.split('=')[1]) |
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172 | except: |
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173 | pass |
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174 | self.Sample['Temperature'] = Temperature |
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175 | |
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176 | return True |
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177 | |
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