PointParser class

Parses a the List

The object maintains an internal state with all information that's been parsed so far. If then information is sent that seems to indicates a new point definition, the parser makes a choice:

• if the current state is sufficient to define a point, a point is created and returned
• otherwise it assumes that the previously provided information was not in fact a correct point. The parser resets its internal state and starts working on a new point. No point is returned.

Constructors

PointParser(double? _minSecondsBetweenDatapoints, double? _accuracyThreshold, void resultReporter(GpsPoint point))

Properties

accuracy ↔ int?

getter/setter pair

altitude ↔ int?

getter/setter pair

hashCode → int

The hash code for this object.

no setter, inherited

isAllNull → bool

no setter

isUndefined → bool

Points are defined if the minimum required information is provided (timestamp, latitude and longitude).

no setter

latitudeE7 ↔ int?

getter/setter pair

longitudeE7 ↔ int?

getter/setter pair

pos ↔ int

Current position of the parser in the bytes list.

getter/setter pair

posStartNextStreamChunk ↔ int?

Position up to which we've successfully parsed. This is where we should continue parsing with the next chunk of data from a stream, if the current chunk contained incomplete data to define a point.

getter/setter pair

resultReporter → void Function(GpsPoint point)

Function called when a point has been identified (typically a Sink.add accepting the points).

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

timestampMs ↔ int?

getter/setter pair

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

parseUpdate(List<int> bytes, int start, int end) → void

Tries to update its fields based on information from the specified bytes, which should come from a JSON file. Creates and sends new points to resultReporter when such fully defined points are detected.

reset() → void

Resets the internal parser state to completely null.

toGpsPointAndReset() → void

Creates and adds a point representing the current internal state to resultReporter, if the current state is sufficiently defined to represent such a point. The internal state is consequently reset, whether a point was created or not.

toString() → String

A string representation of this object.

override

Operators

operator ==(Object other) → bool

The equality operator.

inherited