source: sasview/src/sas/sascalc/fit/Loader.py @ 574adc7

ESS_GUIESS_GUI_DocsESS_GUI_batch_fittingESS_GUI_bumps_abstractionESS_GUI_iss1116ESS_GUI_iss879ESS_GUI_iss959ESS_GUI_openclESS_GUI_orderingESS_GUI_sync_sascalcmagnetic_scattrelease-4.2.2ticket-1009ticket-1094-headlessticket-1242-2d-resolutionticket-1243ticket-1249ticket885unittest-saveload
Last change on this file since 574adc7 was 574adc7, checked in by Paul Kienzle <pkienzle@…>, 5 years ago

convert sascalc to python 2/3 syntax

  • Property mode set to 100644
File size: 2.5 KB
Line 
1from __future__ import print_function
2
3# class Loader  to load any king of file
4#import wx
5#import string
6import numpy as np
7
8class Load:
9    """
10    This class is loading values from given file or value giving by the user
11    """
12    def __init__(self, x=None, y=None, dx=None, dy=None):
13        raise NotImplementedError("a code search shows that this code is not active, and you are not seeing this message")
14        # variable to store loaded values
15        self.x = x
16        self.y = y
17        self.dx = dx
18        self.dy = dy
19        self.filename = None
20
21    def set_filename(self, path=None):
22        """
23        Store path into a variable.If the user doesn't give
24        a path as a parameter a pop-up
25        window appears to select the file.
26
27        :param path: the path given by the user
28
29        """
30        self.filename = path
31
32    def get_filename(self):
33        """ return the file's path"""
34        return self.filename
35
36    def set_values(self):
37        """ Store the values loaded from file in local variables"""
38        if self.filename is not None:
39            input_f =  open(self.filename, 'r')
40            buff = input_f.read()
41            lines = buff.split('\n')
42            self.x = []
43            self.y = []
44            self.dx = []
45            self.dy = []
46            for line in lines:
47                try:
48                    toks = line.split()
49                    x = float(toks[0])
50                    y = float(toks[1])
51                    dy = float(toks[2])
52
53                    self.x.append(x)
54                    self.y.append(y)
55                    self.dy.append(dy)
56                    self.dx = np.zeros(len(self.x))
57                except:
58                    print("READ ERROR", line)
59            # Sanity check
60            if not len(self.x) == len(self.dx):
61                raise ValueError("x and dx have different length")
62            if not len(self.y) == len(self.dy):
63                raise ValueError("y and dy have different length")
64
65
66    def get_values(self):
67        """ Return x, y, dx, dy"""
68        return self.x, self.y, self.dx, self.dy
69
70    def load_data(self, data):
71        """ Return plottable"""
72        #load data
73        data.x = self.x
74        data.y = self.y
75        data.dx = self.dx
76        data.dy = self.dy
77        #Load its View class
78        #plottable.reset_view()
79
80
81if __name__ == "__main__":
82    load = Load()
83    load.set_filename("testdata_line.txt")
84    print(load.get_filename())
85    load.set_values()
86    print(load.get_values())
87
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