- Timestamp:
- Apr 9, 2017 3:47:08 AM (8 years ago)
- Branches:
- master, ESS_GUI, ESS_GUI_Docs, ESS_GUI_batch_fitting, ESS_GUI_bumps_abstraction, ESS_GUI_iss1116, ESS_GUI_iss879, ESS_GUI_iss959, ESS_GUI_opencl, ESS_GUI_ordering, ESS_GUI_sync_sascalc, costrafo411, magnetic_scatt, release-4.2.2, ticket-1009, ticket-1094-headless, ticket-1242-2d-resolution, ticket-1243, ticket-1249, ticket885, unittest-saveload
- Children:
- 8938502
- Parents:
- e962d85 (diff), 5b2b04d (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent. - Location:
- src/sas
- Files:
-
- 3 edited
Legend:
- Unmodified
- Added
- Removed
-
src/sas/sasgui/guiframe/data_processor.py
r9a5097c re645bbb 18 18 19 19 """ 20 import wx21 import numpy22 import math23 import re24 20 import os 25 21 import sys 26 22 import copy 27 from wx.lib.scrolledpanel import ScrolledPanel 23 import math 24 import re 25 import wx 26 import numpy as np 27 28 28 import wx.aui 29 29 from wx.aui import AuiNotebook as nb 30 30 import wx.lib.sheet as sheet 31 from wx.lib.scrolledpanel import ScrolledPanel 32 31 33 from sas.sasgui.guiframe.panel_base import PanelBase 32 34 from sas.sasgui.guiframe.events import NewPlotEvent -
src/sas/sascalc/data_util/qsmearing.py
r9a5097c re962d85 65 65 raise ValueError('one or more of your dx values are negative, please check the data file!') 66 66 67 if _found_sesans == True: 68 #Pre-compute the Hankel matrix (H) 69 qmax, qunits = data.sample.zacceptance 67 if _found_sesans: 68 # Pre-compute the Hankel matrix (H) 70 69 SElength = Converter(data._xunit)(data.x, "A") 71 zaccept = Converter(qunits)(qmax, "1/A"), 70 71 theta_max = Converter("radians")(data.sample.zacceptance)[0] 72 q_max = 2 * np.pi / np.max(data.source.wavelength) * np.sin(theta_max) 73 zaccept = Converter("1/A")(q_max, "1/" + data.source.wavelength_unit), 74 72 75 Rmax = 10000000 73 hankel = SesansTransform(data.x, SElength, zaccept, Rmax) 76 hankel = SesansTransform(data.x, SElength, 77 data.source.wavelength, 78 zaccept, Rmax) 74 79 # Then return the actual transform, as if it were a smearing function 75 80 return PySmear(hankel, model, offset=0) -
src/sas/sascalc/dataloader/readers/sesans_reader.py
r9a5097c rf6c2555 1 1 """ 2 2 SESANS reader (based on ASCII reader) 3 3 4 4 Reader for .ses or .sesans file format 5 6 Jurrian Bakker 5 6 Jurrian Bakker 7 7 """ 8 8 import numpy as np … … 18 18 _ZERO = 1e-16 19 19 20 20 21 class Reader: 21 22 """ 22 23 Class to load sesans files (6 columns). 23 24 """ 24 # #File type25 # File type 25 26 type_name = "SESANS" 26 27 # #Wildcards27 28 # Wildcards 28 29 type = ["SESANS files (*.ses)|*.ses", 29 30 "SESANS files (*..sesans)|*.sesans"] 30 # #List of allowed extensions31 # List of allowed extensions 31 32 ext = ['.ses', '.SES', '.sesans', '.SESANS'] 32 33 # #Flag to bypass extension check33 34 # Flag to bypass extension check 34 35 allow_all = True 35 36 36 37 def read(self, path): 37 38 # print "reader triggered"39 40 38 """ 41 39 Load data file 42 40 43 41 :param path: file path 44 42 45 43 :return: SESANSData1D object, or None 46 44 47 45 :raise RuntimeError: when the file can't be opened 48 46 :raise ValueError: when the length of the data vectors are inconsistent … … 51 49 basename = os.path.basename(path) 52 50 _, extension = os.path.splitext(basename) 53 if self.allow_all or extension.lower() in self.ext: 54 try: 55 # Read in binary mode since GRASP frequently has no-ascii 56 # characters that brakes the open operation 57 input_f = open(path,'rb') 58 except: 59 raise RuntimeError, "sesans_reader: cannot open %s" % path 60 buff = input_f.read() 61 lines = buff.splitlines() 62 x = np.zeros(0) 63 y = np.zeros(0) 64 dy = np.zeros(0) 65 lam = np.zeros(0) 66 dlam = np.zeros(0) 67 dx = np.zeros(0) 68 69 #temp. space to sort data 70 tx = np.zeros(0) 71 ty = np.zeros(0) 72 tdy = np.zeros(0) 73 tlam = np.zeros(0) 74 tdlam = np.zeros(0) 75 tdx = np.zeros(0) 76 output = Data1D(x=x, y=y, lam=lam, dy=dy, dx=dx, dlam=dlam, isSesans=True) 77 self.filename = output.filename = basename 51 if not (self.allow_all or extension.lower() in self.ext): 52 raise RuntimeError( 53 "{} has an unrecognized file extension".format(path)) 54 else: 55 raise RuntimeError("{} is not a file".format(path)) 56 with open(path, 'r') as input_f: 57 line = input_f.readline() 58 params = {} 59 while not line.startswith("BEGIN_DATA"): 60 terms = line.split() 61 if len(terms) >= 2: 62 params[terms[0]] = " ".join(terms[1:]) 63 line = input_f.readline() 64 self.params = params 78 65 79 paramnames=[] 80 paramvals=[] 81 zvals=[] 82 dzvals=[] 83 lamvals=[] 84 dlamvals=[] 85 Pvals=[] 86 dPvals=[] 66 if "FileFormatVersion" not in self.params: 67 raise RuntimeError("SES file missing FileFormatVersion") 68 if float(self.params["FileFormatVersion"]) >= 2.0: 69 raise RuntimeError("SASView only supports SES version 1") 87 70 88 for line in lines: 89 # Initial try for CSV (split on ,) 90 line=line.strip() 91 toks = line.split('\t') 92 if len(toks)==2: 93 paramnames.append(toks[0]) 94 paramvals.append(toks[1]) 95 if len(toks)>5: 96 zvals.append(toks[0]) 97 dzvals.append(toks[3]) 98 lamvals.append(toks[4]) 99 dlamvals.append(toks[5]) 100 Pvals.append(toks[1]) 101 dPvals.append(toks[2]) 102 else: 103 continue 71 if "SpinEchoLength_unit" not in self.params: 72 raise RuntimeError("SpinEchoLength has no units") 73 if "Wavelength_unit" not in self.params: 74 raise RuntimeError("Wavelength has no units") 75 if params["SpinEchoLength_unit"] != params["Wavelength_unit"]: 76 raise RuntimeError("The spin echo data has rudely used " 77 "different units for the spin echo length " 78 "and the wavelength. While sasview could " 79 "handle this instance, it is a violation " 80 "of the file format and will not be " 81 "handled by other software.") 104 82 105 x=[] 106 y=[] 107 lam=[] 108 dx=[] 109 dy=[] 110 dlam=[] 111 lam_header = lamvals[0].split() 112 data_conv_z = None 113 default_z_unit = "A" 114 data_conv_P = None 115 default_p_unit = " " # Adjust unit for axis (L^-3) 116 lam_unit = lam_header[1].replace("[","").replace("]","") 117 if lam_unit == 'AA': 118 lam_unit = 'A' 119 varheader=[zvals[0],dzvals[0],lamvals[0],dlamvals[0],Pvals[0],dPvals[0]] 120 valrange=range(1, len(zvals)) 121 for i in valrange: 122 x.append(float(zvals[i])) 123 y.append(float(Pvals[i])) 124 lam.append(float(lamvals[i])) 125 dy.append(float(dPvals[i])) 126 dx.append(float(dzvals[i])) 127 dlam.append(float(dlamvals[i])) 83 headers = input_f.readline().split() 128 84 129 x,y,lam,dy,dx,dlam = [130 np.asarray(v, 'double')131 for v in (x,y,lam,dy,dx,dlam)132 ]85 self._insist_header(headers, "SpinEchoLength") 86 self._insist_header(headers, "Depolarisation") 87 self._insist_header(headers, "Depolarisation_error") 88 self._insist_header(headers, "Wavelength") 133 89 134 input_f.close()90 data = np.loadtxt(input_f) 135 91 136 output.x, output.x_unit = self._unit_conversion(x, lam_unit, default_z_unit) 137 output.y = y 138 output.y_unit = r'\AA^{-2} cm^{-1}' # output y_unit added 139 output.dx, output.dx_unit = self._unit_conversion(dx, lam_unit, default_z_unit) 140 output.dy = dy 141 output.lam, output.lam_unit = self._unit_conversion(lam, lam_unit, default_z_unit) 142 output.dlam, output.dlam_unit = self._unit_conversion(dlam, lam_unit, default_z_unit) 143 144 output.xaxis(r"\rm{z}", output.x_unit) 145 output.yaxis(r"\rm{ln(P)/(t \lambda^2)}", output.y_unit) # Adjust label to ln P/(lam^2 t), remove lam column refs 92 if data.shape[1] != len(headers): 93 raise RuntimeError( 94 "File has {} headers, but {} columns".format( 95 len(headers), 96 data.shape[1])) 146 97 147 # Store loading process information 148 output.meta_data['loader'] = self.type_name 149 #output.sample.thickness = float(paramvals[6]) 150 output.sample.name = paramvals[1] 151 output.sample.ID = paramvals[0] 152 zaccept_unit_split = paramnames[7].split("[") 153 zaccept_unit = zaccept_unit_split[1].replace("]","") 154 if zaccept_unit.strip() == r'\AA^-1' or zaccept_unit.strip() == r'\A^-1': 155 zaccept_unit = "1/A" 156 output.sample.zacceptance=(float(paramvals[7]),zaccept_unit) 157 output.vars = varheader 98 if data.size < 1: 99 raise RuntimeError("{} is empty".format(path)) 100 x = data[:, headers.index("SpinEchoLength")] 101 if "SpinEchoLength_error" in headers: 102 dx = data[:, headers.index("SpinEchoLength_error")] 103 else: 104 dx = x*0.05 105 lam = data[:, headers.index("Wavelength")] 106 if "Wavelength_error" in headers: 107 dlam = data[:, headers.index("Wavelength_error")] 108 else: 109 dlam = lam*0.05 110 y = data[:, headers.index("Depolarisation")] 111 dy = data[:, headers.index("Depolarisation_error")] 158 112 159 if len(output.x) < 1: 160 raise RuntimeError, "%s is empty" % path 161 return output 113 lam_unit = self._unit_fetch("Wavelength") 114 x, x_unit = self._unit_conversion(x, "A", 115 self._unit_fetch( 116 "SpinEchoLength")) 117 dx, dx_unit = self._unit_conversion( 118 dx, lam_unit, 119 self._unit_fetch("SpinEchoLength")) 120 dlam, dlam_unit = self._unit_conversion( 121 dlam, lam_unit, 122 self._unit_fetch("Wavelength")) 123 y_unit = self._unit_fetch("Depolarisation") 162 124 163 else: 164 raise RuntimeError, "%s is not a file" % path 165 return None 125 output = Data1D(x=x, y=y, lam=lam, dy=dy, dx=dx, dlam=dlam, 126 isSesans=True) 166 127 167 def _unit_conversion(self, value, value_unit, default_unit): 168 if has_converter == True and value_unit != default_unit: 169 data_conv_q = Converter(value_unit) 170 value = data_conv_q(value, units=default_unit) 128 output.y_unit = y_unit 129 output.x_unit = x_unit 130 output.source.wavelength_unit = lam_unit 131 output.source.wavelength = lam 132 self.filename = output.filename = basename 133 output.xaxis(r"\rm{z}", x_unit) 134 # Adjust label to ln P/(lam^2 t), remove lam column refs 135 output.yaxis(r"\rm{ln(P)/(t \lambda^2)}", y_unit) 136 # Store loading process information 137 output.meta_data['loader'] = self.type_name 138 output.sample.name = params["Sample"] 139 output.sample.ID = params["DataFileTitle"] 140 output.sample.thickness = self._unit_conversion( 141 float(params["Thickness"]), "cm", 142 self._unit_fetch("Thickness"))[0] 143 144 output.sample.zacceptance = ( 145 float(params["Theta_zmax"]), 146 self._unit_fetch("Theta_zmax")) 147 148 output.sample.yacceptance = ( 149 float(params["Theta_ymax"]), 150 self._unit_fetch("Theta_ymax")) 151 return output 152 153 @staticmethod 154 def _insist_header(headers, name): 155 if name not in headers: 156 raise RuntimeError( 157 "Missing {} column in spin echo data".format(name)) 158 159 @staticmethod 160 def _unit_conversion(value, value_unit, default_unit): 161 """ 162 Performs unit conversion on a measurement. 163 164 :param value: The magnitude of the measurement 165 :param value_unit: a string containing the final desired unit 166 :param default_unit: string with the units of the original measurement 167 :return: The magnitude of the measurement in the new units 168 """ 169 # (float, string, string) -> float 170 if has_converter and value_unit != default_unit: 171 data_conv_q = Converter(default_unit) 172 value = data_conv_q(value, units=value_unit) 171 173 new_unit = default_unit 172 174 else: 173 175 new_unit = value_unit 174 176 return value, new_unit 177 178 def _unit_fetch(self, unit): 179 return self.params[unit+"_unit"]
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