Module imo_001_22_area_notice

[frames] | no frames]

Module imo_001_22_area_notice

source code

Trying to do a more sane design for AIS BBM message

Requires:

Python >= 2.6
epydoc >= 3.0.1
lxml >= 2.0
shapely
BitVector
pyproj
geojson

License: GPL v3

Since: 2009-Jun-01

Status: under development

Organization: CCOM

To Do:

handle polyline and polygons that span multiple subareas
handle text that spans adjacent subareas

Version: 4799

Date: 2006-09-25

Author: Kurt Schwehr

Contact: kurt at ccom.unh.edu

Copyright: 2009

Classes

[hide private]

AisException

AisPackingException

AisUnpackingException

AIVDM
AIS VDM Object for AIS top level messages 1 through 64.

BBM
Binary Broadcast Message - MessageID 8.

AreaNoticeSubArea

AreaNoticeCirclePt

AreaNoticeRectangle

AreaNoticeSector

AreaNoticePolyline

AreaNoticePolygon
Polyline that wraps back to the beginning

AreaNoticeFreeText

AreaNotice

Functions

[hide private]

lon_to_utm_zone(lon)

source code

_make_short_notice()

source code

frange(start, stop=None, step=None)
range but with float steps

source code

vec_add(a, b)

source code

vec_rot(a, theta)
counter clockwise rotation by theta radians

source code

deg2rad(degrees)

source code

rad2deg(radians)

source code

geom2kml(geom_dict)
Convert a geointerface geometry to KML

source code

nmea_checksum_hex(sentence)

source code

Variables

[hide private]

__revision__ = '4799'

__license__ = 'GPL v3'

kml_head = '<?xml version="1.0" encoding="UTF-8"?>\n<kml xmlns...
Beginning of a KML file for visualization

kml_tail = '</Document>\n</kml>\n'
Finish a kml file

iso8601_timeformat = '%Y-%m-%dT%H:%M:%SZ'
ISO time format for NetworkLinkControl strftime

nmea_talkers = {'AG': 'Autopilot - General', 'AI': 'Automatic ...
Prefixes for NMEA strings that say where a message originated.

notice_type = {0: 'Caution Area: Marine mammals NOT observed',...
by name or number.

short_notice = {0: 'cau_mammals_not_obs', 1: 'cau_mammals_redu...

__package__ = None

Function Details

[hide private]

geom2kml(geom_dict)

source code

Convert a geointerface geometry to KML

Parameters:

geom_dict - Dictionary containing 'geometry' as defined by the geo interface / geojson / shapely

Variables Details

[hide private]

kml_head

Beginning of a KML file for visualization

Value:

'''<?xml version="1.0" encoding="UTF-8"?>
<kml xmlns="http://www.opengis.net/kml/2.2" xmlns:gx="http://www.googl
e.com/kml/ext/2.2" xmlns:kml="http://www.opengis.net/kml/2.2" xmlns:at
om="http://www.w3.org/2005/Atom">
<Document>
'''

iso8601_timeformat

ISO time format for NetworkLinkControl strftime

See Also: KML Tutorial

Value:

'%Y-%m-%dT%H:%M:%SZ'

nmea_talkers

Prefixes for NMEA strings that say where a message originated. http://gpsd.berlios.de/NMEA.txt BBM messages may require having EC as the prefix.

Value:

{'AG': 'Autopilot - General',
 'AI': 'Automatic Identification System',
 'AP': 'Autopilot - Magnetic',
 'CC': 'Computer - Programmed Calculator (outdated)',
 'CD': 'Communications - Digital Selective Calling (DSC)',
 'CM': 'Computer - Memory Data (outdated)',
 'CS': 'Communications - Satellite',
 'CT': 'Communications - Radio-Telephone (MF/HF)',
...

notice_type

by name or number.

cau == caution area res == restricted anc == anchorage env == environmental caution sec == security des == distress inst == instructional info == informational chart == chart features

Value:

{0: 'Caution Area: Marine mammals NOT observed',
 1: 'Caution Area: Marine mammals in area - Reduce Speed',
 2: 'Caution Area: Marine mammals in area - Stay Clear',
 3: 'Caution Area: Marine mammals in area - Report Sightings',
 4: 'Caution Area: Protected Habitat - Reduce Speed',
 5: 'Caution Area: Protected Habitat - Stay Clear',
 6: 'Caution Area: Protected Habitat - No fishing or anchoring',
 7: 'Reserved',
...

short_notice

Value:

{0: 'cau_mammals_not_obs',
 1: 'cau_mammals_reduce_speed',
 2: 'cau_mammals_stay_clear',
 3: 'cau_mammals_report_sightings',
 4: 'cau_habitat_reduce_speed',
 5: 'cau_habitat_stay_clear',
 6: 'cau_habitat_no_fishing_or_anchoring',
 8: 'cau_congestion',
...