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Package ais :: Package sls :: Module waterlevel
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Module waterlevel

source code

Autogenerated python functions to serialize/deserialize binary messages.

Generated by: ../aisxmlbinmsg2py.py

Need to then wrap these functions with the outer AIS packet and then convert the whole binary blob to a NMEA string. Those functions are not currently provided in this file.

serialize: python to ais binary deserialize: ais binary to python

The generated code uses translators.py, binary.py, and aisstring.py which should be packaged with the resulting files.

Requires:

Author: xmlbinmsg

Version: 4791

Status: under development

License: Generated code has no license

To Do: FIX: put in a description of the message here with fields and types.

Date: 2007-03-30

Classes [hide private]
  Testsls_waterlevel
Use testvalue tag text from each type to build test case the sls_waterlevel message
Functions [hide private]
BitVector
encode(params, validate=False)
Create a sls_waterlevel binary message payload to pack into an AIS Msg sls_waterlevel.		 source code
dict
decode(bv, validate=False)
Unpack a sls_waterlevel message		 source code
 
decodetime_month(bv, validate=False) source code
 
decodetime_day(bv, validate=False) source code
 
decodetime_hour(bv, validate=False) source code
 
decodetime_min(bv, validate=False) source code
 
decodestationid(bv, validate=False) source code
 
decodepos_longitude(bv, validate=False) source code
 
decodepos_latitude(bv, validate=False) source code
 
decodetype(bv, validate=False) source code
 
decodewaterlevel(bv, validate=False) source code
 
decodedatum(bv, validate=False) source code
 
decodereserved(bv, validate=False) source code
 
printHtml(params, out=sys.stdout) source code
 
printKml(params, out=sys.stdout)
KML (Keyhole Markup Language) for Google Earth, but without the header/footer		 source code
stdout
printFields(params, out=sys.stdout, format='std', fieldList=None, dbType='postgres')
Print a sls_waterlevel message to stdout.		 source code
str
sqlCreateStr(outfile=sys.stdout, fields=None, extraFields=None, addCoastGuardFields=True, dbType='postgres')
Return the SQL CREATE command for this message type		 source code
sqlhelp.create
sqlCreate(fields=None, extraFields=None, addCoastGuardFields=True, dbType='postgres')
Return the sqlhelp object to create the table.		 source code
str
sqlInsertStr(params, outfile=sys.stdout, extraParams=None, dbType='postgres')
Return the SQL INSERT command for this message type		 source code
sqlhelp.insert
sqlInsert(params, extraParams=None, dbType='postgres')
Give the SQL INSERT statement		 source code
str
latexDefinitionTable(outfile=sys.stdout)
Return the LaTeX definition table for this message type		 source code
dict
testParams()
Return a params file base on the testvalue tags.		 source code
 
addMsgOptions(parser) source code
Variables [hide private]
  TrueBV = BitVector(bitstring= "1")
Why always rebuild the True bit? This should speed things up a bunch
  FalseBV = BitVector(bitstring= "0")
Why always rebuild the False bit? This should speed things up a bunch
  fieldList = ('time_month', 'time_day', 'time_hour', 'time_min'...
  fieldListPostgres = ('time_month', 'time_day', 'time_hour', 't...
  toPgFields = {'pos_latitude': 'pos', 'pos_longitude': 'pos'}
Go to the Postgis field names from the straight field name
  fromPgFields = {'pos': ('pos_longitude', 'pos_latitude')}
Go from the Postgis field names to the straight field name
  pgTypes = {'pos': 'POINT'}
Lookup table for each postgis field name to get its type.
  typeEncodeLut = {'Relative to datum': '0', 'Water depth': '1'}
  typeDecodeLut = {'0': 'Relative to datum', '1': 'Water depth'}
  datumEncodeLut = {'IGLD-85': '1', 'MLLW': '0', 'Reserved': '3'}
  datumDecodeLut = {'0': 'MLLW', '1': 'IGLD-85', '2': 'Reserved'...
Function Details [hide private]

encode(params, validate=False)

source code 

Create a sls_waterlevel binary message payload to pack into an AIS Msg sls_waterlevel.

Fields in params:
  • time_month(uint): Time tag of measurement month 1..12
  • time_day(uint): Time tag of measurement day of the month 1..31
  • time_hour(uint): Time tag of measurement UTC hours 0..23
  • time_min(uint): Time tag of measurement minutes
  • stationid(aisstr6): Character identifier of the station. Usually a number.
  • pos_longitude(decimal): Location of measurement East West location
  • pos_latitude(decimal): Location of measurement North South location
  • type(uint): How to interpret the water level
  • waterlevel(int): Water level in centimeters
  • datum(uint): What reference datum applies to the value
  • reserved(uint): Reserved bits for future use (field automatically set to "0")
Parameters:
  • params - Dictionary of field names/values. Throws a ValueError exception if required is missing
  • validate - Set to true to cause checking to occur. Runs slower. FIX: not implemented.
Returns: BitVector
encoded binary message (for binary messages, this needs to be wrapped in a msg 8

Note: The returned bits may not be 6 bit aligned. It is up to you to pad out the bits.

decode(bv, validate=False)

source code 

Unpack a sls_waterlevel message

Fields in params:
  • time_month(uint): Time tag of measurement month 1..12
  • time_day(uint): Time tag of measurement day of the month 1..31
  • time_hour(uint): Time tag of measurement UTC hours 0..23
  • time_min(uint): Time tag of measurement minutes
  • stationid(aisstr6): Character identifier of the station. Usually a number.
  • pos_longitude(decimal): Location of measurement East West location
  • pos_latitude(decimal): Location of measurement North South location
  • type(uint): How to interpret the water level
  • waterlevel(int): Water level in centimeters
  • datum(uint): What reference datum applies to the value
  • reserved(uint): Reserved bits for future use (field automatically set to "0")
Parameters:
  • bv (BitVector) - Bits defining a message
  • validate - Set to true to cause checking to occur. Runs slower. FIX: not implemented.
Returns: dict
params

printFields(params, out=sys.stdout, format='std', fieldList=None, dbType='postgres')

source code 

Print a sls_waterlevel message to stdout.

Fields in params:
  • time_month(uint): Time tag of measurement month 1..12
  • time_day(uint): Time tag of measurement day of the month 1..31
  • time_hour(uint): Time tag of measurement UTC hours 0..23
  • time_min(uint): Time tag of measurement minutes
  • stationid(aisstr6): Character identifier of the station. Usually a number.
  • pos_longitude(decimal): Location of measurement East West location
  • pos_latitude(decimal): Location of measurement North South location
  • type(uint): How to interpret the water level
  • waterlevel(int): Water level in centimeters
  • datum(uint): What reference datum applies to the value
  • reserved(uint): Reserved bits for future use (field automatically set to "0")
Parameters:
  • params - Dictionary of field names/values.
  • out - File like object to write to
Returns: stdout
text to out

sqlCreateStr(outfile=sys.stdout, fields=None, extraFields=None, addCoastGuardFields=True, dbType='postgres')

source code 
Return the SQL CREATE command for this message type
Parameters:
  • outfile - file like object to print to.
  • fields - which fields to put in the create. Defaults to all.
  • extraFields - A sequence of tuples containing (name,sql type) for additional fields
  • addCoastGuardFields (bool) - Add the extra fields that come after the NMEA check some from the USCG N-AIS format
  • dbType - Which flavor of database we are using so that the create is tailored ('sqlite' or 'postgres')
Returns: str
sql create string

See Also: sqlCreate

sqlCreate(fields=None, extraFields=None, addCoastGuardFields=True, dbType='postgres')

source code 
Return the sqlhelp object to create the table.
Parameters:
  • fields - which fields to put in the create. Defaults to all.
  • extraFields - A sequence of tuples containing (name,sql type) for additional fields
  • addCoastGuardFields (bool) - Add the extra fields that come after the NMEA check some from the USCG N-AIS format
  • dbType - Which flavor of database we are using so that the create is tailored ('sqlite' or 'postgres')
Returns: sqlhelp.create
An object that can be used to generate a return

sqlInsertStr(params, outfile=sys.stdout, extraParams=None, dbType='postgres')

source code 
Return the SQL INSERT command for this message type
Parameters:
  • params - dictionary of values keyed by field name
  • outfile - file like object to print to.
  • extraParams - A sequence of tuples containing (name,sql type) for additional fields
Returns: str
sql create string

See Also: sqlCreate

sqlInsert(params, extraParams=None, dbType='postgres')

source code 
Give the SQL INSERT statement
Parameters:
  • params - dict keyed by field name of values
  • extraParams - any extra fields that you have created beyond the normal ais message fields
Returns: sqlhelp.insert
insert class instance

To Do: allow optional type checking of params?

Warning: this will take invalid keys happily and do what???

latexDefinitionTable(outfile=sys.stdout)

source code 
Return the LaTeX definition table for this message type
Parameters:
  • outfile (file obj) - file like object to print to.
Returns: str
LaTeX table string via the outfile

testParams()

source code 
Return a params file base on the testvalue tags.
Returns: dict
params based on testvalue tags

Variables Details [hide private]

fieldList

Value:
('time_month',
 'time_day',
 'time_hour',
 'time_min',
 'stationid',
 'pos_longitude',
 'pos_latitude',
 'type',
...

fieldListPostgres

Value:
('time_month',
 'time_day',
 'time_hour',
 'time_min',
 'stationid',
 'pos',
 'type',
 'waterlevel',
...

datumDecodeLut

Value:
{'0': 'MLLW', '1': 'IGLD-85', '2': 'Reserved', '3': 'Reserved'}

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Generated by Epydoc 3.0beta1 on Sat Mar 31 08:52:55 2007 http://epydoc.sourceforge.net