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