Better trip planning form, autozooming for static map display based on inserted markers
[bus.git] / origin-src / transitfeed-1.2.5 / transitfeed / _transitfeed.pyc
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8 Do not import this module directly. Thanks to __init__.py you should do
9 something like:
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11 import transitfeed
12 schedule = transitfeed.Schedule()
13 ...
14
15 This module is a library to help you create, read and write Google
16 Transit Feed files. Refer to the feed specification, available at
17 http://code.google.com/transit/spec/transit_feed_specification.htm, for a
18 complete description how the transit feed represents a transit schedule. This
19 library supports all required parts of the specification but does not yet
20 support all optional parts. Patches welcome!
21
22 The specification describes several tables such as stops, routes and trips.
23 In a feed file these are stored as comma separeted value files. This library
24 represents each row of these tables with a single Python object. This object has
25 attributes for each value on the row. For example, schedule.AddStop returns a
26 Stop object which has attributes such as stop_lat and stop_name.
27
28 Schedule: Central object of the parser
29 GenericGTFSObject: A base class for each of the objects below
30 Route: Represents a single route
31 Trip: Represents a single trip
32 Stop: Represents a single stop
33 ServicePeriod: Represents a single service, a set of dates
34 Agency: Represents the agency in this feed
35 Transfer: Represents a single transfer rule
36 TimeToSecondsSinceMidnight(): Convert HH:MM:SS into seconds since midnight.
37 FormatSecondsSinceMidnight(s): Formats number of seconds past midnight into a string
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39 Optionally encode text and return it. The result should be safe to print.
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41
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43 an exception object for each problem. Subclasses must implement
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45
46 Args:
47 file_name: string
48 row_num: int
49 row: list of strings
50 headers: list of column headers, its order corresponding to row's
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58   c
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67 __module__t__doc__R
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70 A word-wrap function that preserves existing line breaks
71 and most spaces in the text. Expects that existing line
72 breaks are posix newlines (
73 ).
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75 Taken from:
76 http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/148061
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78 s
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81 d
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83 context and context2, if present, must be a tuple of (file_name, row_num,
84 row, headers). context2 comes from ProblemReporter.SetFileContext. context
85 was passed in with the keyword arguments. context2 is ignored if context
86 is present.RN(t ExceptionR
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91 Args:
92 d: map returned by GetDictToFormat with with formatting added
93 R's%s
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98 Subclasses should define this if exceptions should be listed in something
99 other than the order they are reported.
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101 Args:
102 y: object to compare to self
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104 Returns:
105 An int which is negative if self is more significant than y, 0 if they
106 are similar significance and positive if self is less significant than
107 y. Returning a float won't work.
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109 Raises:
110 TypeError by default, meaning objects of the type can not be compared.
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124 s$Compute the brightness of an sRGB color using the formula from
125 http://www.w3.org/TR/2000/WD-AERT-20000426#color-contrast.
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127 Args:
128 color: a string of six hex digits in the format verified by IsValidColor().
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130 Returns:
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134 For example "01:02:03" returns 3723. The leading zero of the hours may be
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145 s%Object with arbitrary attributes which may be added to a schedule.
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147 This class should be used as the base class for GTFS objects which may
148 be stored in a Schedule. It defines some methods for reading and writing
149 attributes. If self._schedule is None than the object is not in a Schedule.
150
151 Subclasses must:
152 * define an __init__ method which sets the _schedule member to None or a
153 weakref to a Schedule
154 * Set the _TABLE_NAME class variable to a name such as 'stops', 'agency', ...
155 * define methods to validate objects of that type
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158 This method is only called when name is not found in __dict__.
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166 Callers may assign arbitrary values to instance attributes.
167 Stop.ParseAttributes validates attributes according to GTFS and converts some
168 into native types. ParseAttributes may delete invalid attributes.
169 Accessing an attribute that is a column in GTFS will return None if this
170 object does not have a value or it is ''.
171 A Stop object acts like a dict with string values.
172
173 Attributes:
174 stop_lat: a float representing the latitude of the stop
175 stop_lon: a float representing the longitude of the stop
176 All other attributes are strings.
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180 Args:
181 field_dict: A dictionary mapping attribute name to unicode string
182 lat: a float, ignored when field_dict is present
183 lng: a float, ignored when field_dict is present
184 name: a string, ignored when field_dict is present
185 stop_id: a string, ignored when field_dict is present
186 stop_code: a string, ignored when field_dict is present
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191 A trip may be in the list multiple times with different index.
192 stop_sequence is an integer.
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194 Args:
195 schedule: Deprecated, do not use.
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200 trip: a Trip object
201 index: an offset in trip.GetStopTimes()
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205 time: an integer. It might be interpolated.
206 trip: a Trip object.
207 index: the offset of this stop in trip.GetStopTimes(), which may be
208 different from the stop_sequence.
209 is_timepoint: a bool
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