Altitude class

The current system altitude.

ALTITUDE

Implemented types

• MavlinkMessage

Constructors

Altitude({required uint64_t timeUsec, required float altitudeMonotonic, required float altitudeAmsl, required float altitudeLocal, required float altitudeRelative, required float altitudeTerrain, required float bottomClearance})

Altitude.parse(ByteData data_)

factory

Properties

altitudeAmsl → float

This altitude measure is strictly above mean sea level and might be non-monotonic (it might reset on events like GPS lock or when a new QNH value is set). It should be the altitude to which global altitude waypoints are compared to. Note that it is not the GPS altitude, however, most GPS modules already output MSL by default and not the WGS84 altitude.

final

altitudeLocal → float

This is the local altitude in the local coordinate frame. It is not the altitude above home, but in reference to the coordinate origin (0, 0, 0). It is up-positive.

final

altitudeMonotonic → float

This altitude measure is initialized on system boot and monotonic (it is never reset, but represents the local altitude change). The only guarantee on this field is that it will never be reset and is consistent within a flight. The recommended value for this field is the uncorrected barometric altitude at boot time. This altitude will also drift and vary between flights.

final

altitudeRelative → float

This is the altitude above the home position. It resets on each change of the current home position.

final

altitudeTerrain → float

This is the altitude above terrain. It might be fed by a terrain database or an altimeter. Values smaller than -1000 should be interpreted as unknown.

final

bottomClearance → float

This is not the altitude, but the clear space below the system according to the fused clearance estimate. It generally should max out at the maximum range of e.g. the laser altimeter. It is generally a moving target. A negative value indicates no measurement available.

final

hashCode → int

The hash code for this object.

no setter, inherited

mavlinkCrcExtra → int

no setter, override

mavlinkMessageId → int

no setter, override

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

timeUsec → uint64_t

Timestamp (UNIX Epoch time or time since system boot). The receiving end can infer timestamp format (since 1.1.1970 or since system boot) by checking for the magnitude of the number.

final

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

serialize() → ByteData

override

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Constants

mavlinkEncodedLength → const int