/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/Model/range.py
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trunk/thuban/Thuban/Model/range.py revision 962 by jonathan, Wed May 21 17:23:39 2003 UTC branches/WIP-pyshapelib-bramz/Thuban/Model/range.py revision 2734 by bramz, Thu Mar 1 12:42:59 2007 UTC
# Line 1  Line 1 
 #!/usr/bin/env python  
 #  
1  # Copyright (C) 2002, 2003 by Intevation GmbH  # Copyright (C) 2002, 2003 by Intevation GmbH
2  # Authors:  # Authors:
3  # Thomas Koester <[email protected]>  # Thomas Koester <[email protected]>
# Line 29  class Range: Line 27  class Range:
27      parse_range = re.compile(range_re)      parse_range = re.compile(range_re)
28    
29      def __init__(self, range=None):      def __init__(self, range=None):
30          self.SetRange(range)          self._SetRange(range)
31    
32      def SetRange(self, range):      def _SetRange(self, range):
33          if isinstance(range, Range):          if isinstance(range, Range):
34              self.SetRange(str(range))              self._SetRange(range.GetRange())
35          elif range in [None, '']:          elif range in [None, '']:
36              self.SetRange(']-oo;oo[')              self._SetRange(']-oo;oo[')
37          elif type(range) == types.TupleType:          elif type(range) == types.TupleType:
38              if (len(range) == 4 and range[0] in ['[', ']']              if (len(range) == 4 and range[0] in ['[', ']']
39                  and range[3] in ['[', ']']):                  and range[3] in ['[', ']']):
# Line 53  class Range: Line 51  class Range:
51              self._range = range              self._range = range
52              match = self.parse_range.match(self._range)              match = self.parse_range.match(self._range)
53              if match:              if match:
54                  self.SetRange((match.group('left'),                  self._SetRange((match.group('left'),
55                                match.group('begin'),                                match.group('begin'),
56                                match.group('end'),                                match.group('end'),
57                                match.group('right')))                                match.group('right')))
# Line 68  class Range: Line 66  class Range:
66          """          """
67          return (self._left, self._begin, self._end, self._right)          return (self._left, self._begin, self._end, self._right)
68    
69      def float(self, string):      def float(self, value):
70          if string == 'oo':          """convert string or number to float"""
71            if value == 'oo':
72              return _inf              return _inf
73          elif string == '-oo':          elif value == '-oo':
74              return -_inf              return -_inf
75          else:          else:
76              return float(string)              return float(value)
77    
78      def _float2string(self, value):      def _float2string(self, value):
79          """convert float value to string          """convert float value to string
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