Part of twisted.positioning.nmea View Source View In Hierarchy
Class Variable | INVALID_FIX | The fix is invalid. |
Class Variable | GPS_FIX | There is a fix, acquired using GPS. |
Class Variable | DGPS_FIX | There is a fix, acquired using differential GPS (DGPS). |
Class Variable | PPS_FIX | There is a fix, acquired using the precise positioning service (PPS). |
Class Variable | RTK_FIX | There is a fix, acquired using fixed real-time kinematics. This means that there was a sufficient number of shared satellites with the base station, usually yielding a resolution in the centimeter range. This was added in NMEA 0183 version 3.0. This is also called Carrier-Phase Enhancement or CPGPS, particularly when used in combination with GPS. |
Class Variable | FLOAT_RTK_FIX | There is a fix, acquired using floating real-time kinematics. The same comments apply as for a fixed real-time kinematics fix, except that there were insufficient shared satellites to acquire it, so instead you got a slightly less good floating fix. Typical resolution in the decimeter range. |
Class Variable | DEAD_RECKONING | There is currently no more fix, but this data was computed using a previous fix and some information about motion (either from that fix or from other sources) using simple dead reckoning. Not particularly reliable, but better-than-nonsense data. |
Class Variable | MANUAL | There is no real fix from this device, but the location has been manually entered, presumably with data obtained from some other positioning method. |
Class Variable | SIMULATED | There is no real fix, but instead it is being simulated. |
Inherited from Values:
Class Method | lookupByValue | Retrieve a constant by its value or raise a ValueError if
there is no constant associated with that value. |
Inherited from _ConstantsContainer (via Values):
Method | __new__ | Classes representing constants containers are not intended to be instantiated. |
Class Method | lookupByName | Retrieve a constant by its name or raise a ValueError if
there is no constant associated with that name. |
Class Method | iterconstants | Iteration over a Names subclass
results in all of the constants it contains. |
Class Variable | _constantType | Specified by a _ConstantsContainer
subclass to specify the type of constants allowed by that subclass. |
Class Variable | _enumerants | A dict mapping the names of constants (eg NamedConstant
instances) found in the class definition to those instances. |
Class Method | _constantFactory | Construct the value for a new constant to add to this container. |