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# Copyright (C) 2008 by Intevation GmbH
# Authors:
# Anthony Lenton <anthony@except.com.ar>
#
# This program is free software under the GPL (>=v2)
# Read the file COPYING coming with Thuban for details.
""" A Polish Map File parser. This module contains the MPParser class,
that does the real weight lifting for the importMP module. """
import re
class MPParseError(Exception):
def __init__(self, lNum, reason):
self.reason = reason
self.lineNumber = lNum
def __str__(self):
return "Line %d: %s" % (self.lineNumber, repr(self.reason))
def __repr__(self):
return "Line %d: %s" % (self.lineNumber, repr(self.reason))
# These dictionaries should probably be moved in to a separate file
polylineTypes = {'0x01': 'Major Highway-thick',
'0x02': 'Principal Highway-thick',
'0x03': 'Principal Highway-medium',
'0x04': 'Arterial Road-medium',
'0x05': 'Arterial Road-thick',
'0x06': 'Road-thin',
'0x07': 'Alley-thick',
'0x08': 'Ramp',
'0x09': 'Ramp',
'0x0a': 'Unpaved Road-thin',
'0x0b': 'Major Highway Connector-thick',
'0x0c': 'Roundabout',
'0x14': 'Railroad',
'0x15': 'Shoreline',
'0x16': 'Track/Trail',
'0x18': 'Stream-thin',
'0x19': 'Time-Zone',
'0x1a': 'Ferry',
'0x1b': 'Ferry',
'0x1c': 'Political Boundary',
'0x1d': 'County Boundary',
'0x1e': 'International Boundary',
'0x1f': 'River',
'0x20': 'Land Contour (thin)',
'0x21': 'Land Contour (medium)',
'0x22': 'Land Contour (thick)',
'0x23': 'Depth Contour (thin)',
'0x24': 'Depth Contour (medium)',
'0x25': 'Depth Contour (thick)',
'0x26': 'Intermittent River',
'0x27': 'Airport Runway',
'0x28': 'Pipeline',
'0x29': 'Power line',
'0x2a': 'Marine Boundary (no line)',
'0x2b': 'Marine Hazard (no line)',
'0x0100': 'Miscellaneous line',
'0x0101': 'Line',
'0x0102': 'Cartographic line',
'0x0103': 'Road',
'0x0104': 'Clearing line',
'0x0105': 'Contour line',
'0x0106': 'Overhead cable',
'0x0107': 'Bridge',
'0x0108': 'Recommended route',
'0x0109': 'Chart border',
'0x0300': 'Depth contour',
'0x0301': 'Depth contour value',
'0x0307': 'Intertidal zone border',
'0x0400': 'Obstruction line',
'0x0401': 'Submarine cable',
'0x0402': 'Submarine pipeline',
'0x0403': 'Pile barrier',
'0x0404': 'Fishing stakes',
'0x0405': 'Supply pipeline area',
'0x0406': 'Submarine cable area',
'0x0407': 'Dumping ground',
'0x0408': 'Explosive dumping ground',
'0x0409': 'Danger line',
'0x040a': 'Overhead cable',
'0x040b': 'Submerged construction',
'0x040c': 'Pier/jetty',
'0x0500': 'Restriction',
'0x0501': 'Anchoring prohibited',
'0x0502': 'Fishing prohibited',
'0x0503': 'Prohibited area',
'0x0504': 'Military practice area',
'0x0505': 'Anchoring and fishing prohibited',
'0x0506': 'Limit of nature reservation',
'0x0507': 'Restricted area',
'0x0508': 'Minefield',
'0x0600': 'Miscellaneous line',
'0x0601': 'Cartographic line',
'0x0602': 'Traffic separation line',
'0x0603': 'International maritime boundary',
'0x0604': 'Straight territorial sea baseline',
'0x0605': 'Seaward limit of territorial sea',
'0x0606': 'Anchorage area',
'0x0607': 'Quarantine anchorage area',
'0x0608': 'Fishery zone',
'0x0609': 'Swept area',
'0x060a': 'Traffic separation zone',
'0x060b': 'Limit of exclusive economic zone',
'0x060c': 'Established direction of traffic flow',
'0x060d': 'Recommended direction of traffic flow',
'0x060e': 'Harbour limit',
'0x060f': 'Inadequately surveyed area',
'0x0610': 'Inshore traffic zone',
'0x0611': 'Limit of traffic lane',
'0x0701': 'River channel',
'0x0702': 'Submerged object',
'0x0706': 'Chart boundary'}
polygonTypes = {'0x01': 'City',
'0x02': 'City',
'0x03': 'City',
'0x04': 'Military',
'0x05': 'Car Park (Parking Lot)',
'0x06': 'Parking Garage',
'0x07': 'Airport',
'0x08': 'Shopping Centre',
'0x09': 'Marina',
'0x0a': 'University',
'0x0b': 'Hospital',
'0x0c': 'Industrial',
'0x0d': 'Reservation',
'0x0e': 'Airport Runway',
'0x13': 'Man made area',
'0x14': 'National park',
'0x15': 'National park',
'0x16': 'National park',
'0x17': 'City Park',
'0x18': 'Golf',
'0x19': 'Sport',
'0x1a': 'Cemetery',
'0x1e': 'State Park',
'0x1f': 'State Park',
'0x28': 'Ocean',
'0x3b': 'Blue-Unknown',
'0x32': 'Sea',
'0x3b': 'Blue-Unknown',
'0x3c': 'Lake',
'0x3d': 'Lake',
'0x3e': 'Lake',
'0x3f': 'Lake',
'0x40': 'Lake',
'0x41': 'Lake',
'0x42': 'Lake',
'0x43': 'Lake',
'0x44': 'Lake',
'0x45': 'Blue-Unknown',
'0x46': 'River',
'0x47': 'River',
'0x48': 'River',
'0x49': 'River',
'0x4b': 'Background',
'0x4c': 'Intermittent River/Lake',
'0x4d': 'Glacier',
'0x4e': 'Orchard or plantation',
'0x4f': 'Scrub',
'0x50': 'Woods',
'0x51': 'Wetland',
'0x52': 'Tundra',
'0x53': 'Flats',
'0x0100': 'Land - white',
'0x0101': 'Land - non-urban',
'0x0102': 'Land - urban',
'0x0103': 'Chart exclusion area',
'0x0104': 'Chart background',
'0x0105': 'Bridge',
'0x0300': 'Depth area - white 1',
'0x0301': 'Intertidal zone',
'0x0302': 'Depth area - blue 1',
'0x0303': 'Depth area - blue 2',
'0x0304': 'Depth area - blue 3',
'0x0305': 'Depth area - blue 4',
'0x0306': 'Depth area - blue 5',
'0x0307': 'Depth area - white',
'0x0400': 'Obstruction (invisible)',
'0x0401': 'Submarine cable (invisible)',
'0x0402': 'Submarine pipeline (invisible)',
'0x0403': 'Pile barrier (invisible)',
'0x0404': 'Fishing stakes (invisible)',
'0x0405': 'Supply pipeline area/line (invisible)',
'0x0406': 'Submarine cable area/line (invisible)',
'0x0407': 'Dumping ground (invisible)',
'0x0408': 'Explosive dumping ground (invisible)',
'0x0409': 'Danger line (invisible)',
'0x040a': 'Overhead cable (invisible)',
'0x040b': 'Submerged construction (invisible)',
'0x040c': 'Pier/jetty (invisible)',
'0x0500': 'Restriction area/line (invisible)',
'0x0501': 'Anchoring prohibited (invisible)',
'0x0502': 'Fishing prohibited (invisible)',
'0x0503': 'Prohibited area (invisible)',
'0x0504': 'Military practice area (invisible)',
'0x0505': 'Anchoring and fishing prohibited (invisible)',
'0x0506': 'Limit of nature reservation (invisible)',
'0x0507': 'Restricted area (invisible)',
'0x0508': 'Minefield (invisible)',
'0x0600': 'Miscellaneous area',
'0x0601': 'Cartographic area',
'0x0602': 'Traffic separation area',
'0x0603': 'International maritime boundary',
'0x0604': 'Straight territorial sea baseline',
'0x0605': 'Seaward limit of territorial sea',
'0x0606': 'Anchorage area',
'0x0607': 'Quarantine anchorage area',
'0x0608': 'Fishery zone',
'0x0609': 'Swept area',
'0x060a': 'Traffic separation zone',
'0x060b': 'Limit of exclusive economic zone',
'0x060c': 'Established direction of traffic flow',
'0x0701': 'Fishing area',
'0x0702': 'Restricted area',
'0x0703': 'Anchorage area',
'0x0704': 'Fishing Hot Spots chart'}
class MPParser(object):
""" Polish Map File parser. The main method is 'parse', which
receives a file object as its single argument. The results of
the parsing can then be retrieved via 'pois', 'polygons', 'polylines',
and other attributes.
"""
fields = {'poi': ['Data0', 'Label', 'Origin0'],
'rgn10': ['Data0', 'Label', 'Origin0'],
'rgn20': ['Data0', 'Label', 'Origin0'],
'polyline': ['Type', 'Data0', 'Origin0', 'Label'],
'rgn40': ['Type', 'Data0', 'Origin0', 'Label'],
'polygon': ['Type', 'Data0', 'Origin0', 'Label'],
'rgn80': ['Type', 'Data0', 'Origin0', 'Label'],
'img id': ['Name'] }
def __init__(self):
self.pois = []
self.polygons = []
self.polylines = []
self.parsedLines = 0
self.parsedSections = 0
self.mapName = ""
def parse (self, fp):
""" Parse a map file. 'fp' should be a readable file object.
After parsing the results can be accessed using 'pois', 'polylines',
'polygons', and other attributes.
Returns a dictionary with the results of the parsing, but this can
be most often discarded directly """
def sectionBounder (line):
return line[0] == '[' and line[-1] == ']'
def sectionEnd (line):
return (sectionBounder (line) and
(line.lower() == '[end]' or
line.lower().startswith('[end-')))
def sectionStart (line):
return sectionBounder (line) and not sectionEnd (line)
parsed = {}
for kind in self.fields.keys():
parsed[kind] = []
inSection = False
sectionName = None
lNum = 0 # Number of lines parsed so far
sNum = 0 # Number of sections parsed so far
for line in fp.readlines():
lNum += 1
line = line.strip()
if len(line) == 0 or line[0] == ';': # Drop blank lines and comments
continue
if not inSection:
if not sectionBounder (line):
raise MPParseError (lNum, "Line not within a section")
elif sectionEnd (line):
raise MPParseError (lNum, "Section End without a section")
else:
sectionName = line[1:-1].lower()
section = {}
inSection = True
sNum += 1
else:
if not sectionBounder (line):
if sectionName in self.fields.keys():
parts = line.split('=',1)
if len(parts) != 2:
raise MPParseError (lNum, "Invalid line")
key, value = map(str.strip, parts)
if key in self.fields[sectionName]:
section[key] = value
elif sectionStart (line):
raise MPParseError (lNum, "Section Start within a section")
else:
if line.startswith ('[end-') and line[5:-1] != sectionName:
raise MPParseError (lNum, "Section name mismatch")
if sectionName in self.fields.keys():
parsed[sectionName].append (section)
inSection = False
# These last checks are a bit pedantic (not needed to do our
# job) but we're validating the source file a bit.
if inSection:
raise MPParseError (lNum, "End-of-file found within a section")
if len(parsed['img id']) == 0:
raise MPParseError (lNum, "No [IMG ID] section found")
elif len(parsed['img id']) > 1:
raise MPParseError (lNum, "Multiple [IMG ID] sections found")
else:
self.mapName = parsed['img id'][0].get ('Name', "")
# Ok, enough checks, set the data!
self.parsedLines = lNum
self.parsedSections = sNum
self.pois = parsed['poi'] + parsed['rgn10'] + parsed['rgn20']
twople = re.compile(r'\([-+]?(?P<lat>\d+(\.\d*)?|\.\d+), ' \
r'*[-+]?(?P<long>\d+(\.\d*)?|\.\d+)\)')
for poi in self.pois:
assert poi.has_key ('Data0') or poi.has_key ('Origin0')
data = poi.get('Data0', poi.get('Origin0'))
match = twople.match (data)
if not match is None:
poi['long'] = -float (match.group('long'))
poi['lat'] = -float (match.group('lat'))
self.polygons = parsed['polygon'] + parsed['rgn80']
for poly in self.polygons:
poly['long'] = []
poly['lat'] = []
assert poly.has_key ('Data0') or poly.has_key ('Origin0')
data = poly.get('Data0', poly.get('Origin0'))
while len(data) > 0:
match = twople.match (data)
if not match is None:
poly['long'].append (-float (match.group('long')))
poly['lat'].append (-float (match.group('lat')))
data = data[match.end() + 1:]
if poly['long'][-1] != poly['long'][0] or poly['lat'][-1] != poly['lat'][0]:
poly['long'].append(poly['long'][0])
poly['lat'].append(poly['lat'][0])
try:
poly['parsedType'] = polygonTypes[poly['Type']]
except KeyError, e:
# Attempt to read 0xe as 0x0e, for example
newType = '0x0' + poly['Type'][2:]
poly['parsedType'] = polygonTypes.get(newType, "")
self.polylines = parsed['polyline'] + parsed['rgn40']
for poly in self.polylines:
poly['long'] = []
poly['lat'] = []
assert poly.has_key ('Data0') or poly.has_key ('Origin0')
data = poly.get('Data0', poly.get('Origin0'))
while len(data) > 0:
match = twople.match (data)
if not match is None:
poly['long'].append (-float (match.group('long')))
poly['lat'].append (-float (match.group('lat')))
data = data[match.end() + 1:]
try:
poly['parsedType'] = polylineTypes[poly['Type']]
except KeyError, e:
# Attempt to read 0xe as 0x0e, for example
newType = '0x0' + poly['Type'][2:]
poly['parsedType'] = polylineTypes.get(newType, "")
return parsed
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