### Display GNSS Measurement Data in a ListView

Source: https://pub.dev/packages/raw_gnss

Example of using a StreamBuilder to display GNSS measurement data, specifically satellite IDs, in a ListView. This requires the raw_gnss package and a running stream of GnssMeasurementEvents.

```dart
StreamBuilder<GnssMeasurementModel>(
    builder: (context, snapshot) {
      if (snapshot.data == null) {
        return CircularProgressIndicator();
      }

      return ListView.builder(
          itemBuilder: (context, position) {
            return ListTile(
              title: Text(
                  "Satellite: ${snapshot.data!.measurements![position].svid}"),
            );
          },
          itemCount: snapshot.data!.measurements?.length ?? 0,
      );
    },
    stream: RawGnss().gnssMeasurementEvents,
  ),
```

--------------------------------

### Get GnssMeasurement Events Stream

Source: https://pub.dev/documentation/raw_gnss/latest/raw_gnss/RawGnss/gnssMeasurementEvents.html

This getter provides a stream of GnssMeasurementModel objects. It initializes the stream if it's null by receiving broadcast events from a channel and mapping them to GnssMeasurementModel.fromJson.

```dart
Stream<GnssMeasurementModel> get gnssMeasurementEvents {
  if (_gnssMeasurementEvents == null) {
    _gnssMeasurementEvents = _gnssMeasurementEventChannel
        .receiveBroadcastStream()
        .map((event) => GnssMeasurementModel.fromJson(
            (event as Map<dynamic, dynamic>).cast()));
  }
  return _gnssMeasurementEvents!;
}
```

--------------------------------

### Get GnssNavigationMessage Events Stream

Source: https://pub.dev/documentation/raw_gnss/latest/raw_gnss/RawGnss/gnssNavigationMessageEvents.html

This getter provides a broadcast stream for GnssNavigationMessage events. It initializes the stream if it hasn't been already.

```dart
Stream get gnssNavigationMessageEvents {
  if (_gnssNavigationMessageEvents == null) {
    _gnssNavigationMessageEvents =
        _gnssNavigationMessageEventChannel.receiveBroadcastStream();
  }
  return _gnssNavigationMessageEvents!;
}
```

--------------------------------

### Get GnssStatusEvents Stream

Source: https://pub.dev/documentation/raw_gnss/latest/raw_gnss/RawGnss/gnssStatusEvents.html

This getter provides a stream of GnssStatusModel events. It initializes the stream if it hasn't been already, by receiving broadcast stream events from a channel and mapping them to GnssStatusModel objects.

```dart
Stream<GnssStatusModel> get gnssStatusEvents {
  if (_gnssMeasurementEvents == null) {
    _gnssStatusEvents = _gnssStatusEventChannel.receiveBroadcastStream().map(
        (event) => GnssStatusModel.fromJson(
            (event as Map<dynamic, dynamic>).cast()));
  }
  return _gnssStatusEvents!;
}
```

--------------------------------

### Clock Constructors

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_measurement_model/Clock-class.html

Provides information on how to instantiate the Clock class.

```APIDOC
## Clock Constructors

Clock({int? contents, double? biasNanos, double? biasUncertaintyNanos, double? driftNanosPerSecond, double? driftUncertaintyNanosPerSecond, int? fullBiasNanos, int? hardwareClockDiscontinuityCount, int? leapSecond, int? timeNanos, double? timeUncertaintyNanos})

Clock.fromJson(Map<String, dynamic> json)
```

--------------------------------

### RawGnss Constructor

Source: https://pub.dev/documentation/raw_gnss/latest/raw_gnss/RawGnss-class.html

Initializes a new instance of the RawGnss class.

```APIDOC
## RawGnss()

### Description
Initializes a new instance of the RawGnss class.

### Method
Constructor
```

--------------------------------

### Measurement Class Constructors

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_measurement_model/Measurement-class.html

Demonstrates the available constructors for the Measurement class, including the default constructor and a constructor for creating a Measurement object from JSON.

```APIDOC
## Constructors

Measurement({int? contents, double? accumulatedDeltaRangeMeters, int? accumulatedDeltaRangeState, double? accumulatedDeltaRangeUncertaintyMeters, double? automaticGainControlLevelDb, double? carrierFrequencyHz, double? cn0DbHz, int? constellationType, int? multipathIndicator, double? pseudorangeRateMetersPerSecond, double? pseudorangeRateUncertaintyMetersPerSecond, int? receivedSvTimeNanos, int? receivedSvTimeUncertaintyNanos, double? snrInDb, int? state, int? svid, double? timeOffsetNanos, String? string})
    
Measurement.fromJson(Map<String, dynamic> json) 
    
```

--------------------------------

### Status Constructor

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_status_model/Status/Status.html

Initializes a new Status object with optional GNSS parameters.

```APIDOC
## Status Constructor

### Description
Initializes a new Status object with optional GNSS parameters.

### Parameters
#### Named Parameters
- **azimuthDegrees** (double?) - Optional - The azimuth angle in degrees.
- **carrierFrequencyHz** (double?) - Optional - The carrier frequency in Hertz.
- **cn0DbHz** (double?) - Optional - The carrier-to-noise density ratio in dB-Hz.
- **constellationType** (int?) - Optional - The type of satellite constellation.
- **elevationDegrees** (double?) - Optional - The elevation angle in degrees.
- **svid** (int?) - Optional - The satellite vehicle ID.
- **hasAlmanacData** (bool?) - Optional - Indicates if almanac data is available.
- **hasCarrierFrequencyHz** (bool?) - Optional - Indicates if carrier frequency is available.
- **hasEphemerisData** (bool?) - Optional - Indicates if ephemeris data is available.
- **usedInFix** (bool?) - Optional - Indicates if the satellite was used in the fix.

### Implementation
```dart
Status({
  this.azimuthDegrees,
  this.carrierFrequencyHz,
  this.cn0DbHz,
  this.constellationType,
  this.elevationDegrees,
  this.svid,
  this.hasAlmanacData,
  this.hasCarrierFrequencyHz,
  this.hasEphemerisData,
  this.usedInFix,
});
```
```

--------------------------------

### GnssStatusModel Constructor

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_status_model/GnssStatusModel/GnssStatusModel.html

Initializes a new GnssStatusModel with optional satellite count, hash codec, and status list.

```APIDOC
## GnssStatusModel Constructor

### Description
Constructs a GnssStatusModel with optional parameters.

### Parameters
#### Named Parameters
- **satelliteCount** (int?) - Optional - The number of satellites.
- **hashCodec** (int?) - Optional - The hash codec value.
- **status** (List<Status>?) - Optional - A list of Status objects.
```

--------------------------------

### Status Constructor

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_status_model/Status-class.html

Initializes a new Status object with optional GNSS status parameters.

```APIDOC
## Status({double? azimuthDegrees, double? carrierFrequencyHz, double? cn0DbHz, int? constellationType, double? elevationDegrees, int? svid, bool? hasAlmanacData, bool? hasCarrierFrequencyHz, bool? hasEphemerisData, bool? usedInFix})

### Description
Constructs a Status object with detailed GNSS satellite information.

### Parameters
- **azimuthDegrees** (double?) - The azimuth angle of the satellite in degrees.
- **carrierFrequencyHz** (double?) - The carrier frequency of the satellite signal in Hz.
- **cn0DbHz** (double?) - The carrier-to-noise density ratio in dBHz.
- **constellationType** (int?) - The type of satellite constellation (e.g., GPS, GLONASS).
- **elevationDegrees** (double?) - The elevation angle of the satellite in degrees.
- **svid** (int?) - The satellite vehicle ID.
- **hasAlmanacData** (bool?) - Indicates if almanac data is available.
- **hasCarrierFrequencyHz** (bool?) - Indicates if carrier frequency information is available.
- **hasEphemerisData** (bool?) - Indicates if ephemeris data is available.
- **usedInFix** (bool?) - Indicates if the satellite was used in the current fix.
```

--------------------------------

### GnssMeasurementModel Constructor

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_measurement_model/GnssMeasurementModel/GnssMeasurementModel.html

Initializes a new instance of the GnssMeasurementModel class with optional parameters.

```APIDOC
## GnssMeasurementModel Constructor

### Description
Initializes a new instance of the GnssMeasurementModel class.

### Parameters
#### Named Parameters
- **contents** (int?) - Optional - An integer representing contents.
- **string** (String?) - Optional - A string value.
- **measurements** (List<Measurement>?) - Optional - A list of Measurement objects.
- **clock** (Clock?) - Optional - A Clock object.

### Implementation
```dart
GnssMeasurementModel({
  this.contents,
  this.string,
  this.measurements,
  this.clock,
});
```
```

--------------------------------

### GnssStatusModel Constructor

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_status_model/GnssStatusModel-class.html

Initializes a new instance of the GnssStatusModel class.

```APIDOC
## GnssStatusModel

### Description
Initializes a new instance of the GnssStatusModel class.

### Parameters
- **satelliteCount** (int?) - Optional - The count of satellites.
- **hashCodec** (int?) - Optional - The hash codec.
- **status** (List<Status>?) - Optional - The list of statuses.
```

--------------------------------

### GnssMeasurementModel Constructors

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_measurement_model/GnssMeasurementModel-class.html

Constructors for creating instances of the GnssMeasurementModel class.

```APIDOC
## Constructors

GnssMeasurementModel({int? contents, String? string, List<Measurement>? measurements, Clock? clock})

GnssMeasurementModel.fromJson(Map<String, dynamic> json)
```

--------------------------------

### Clock Constructor

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_measurement_model/Clock/Clock.html

Initializes a new Clock object with various GNSS clock measurement parameters.

```APIDOC
## Clock constructor

### Description
Initializes a new Clock object with various GNSS clock measurement parameters.

### Parameters
#### Constructor Parameters
- **contents** (int?) - Optional - Represents the contents of the clock measurement.
- **biasNanos** (double?) - Optional - The clock bias in nanoseconds.
- **biasUncertaintyNanos** (double?) - Optional - The uncertainty of the clock bias in nanoseconds.
- **driftNanosPerSecond** (double?) - Optional - The clock drift in nanoseconds per second.
- **driftUncertaintyNanosPerSecond** (double?) - Optional - The uncertainty of the clock drift in nanoseconds per second.
- **fullBiasNanos** (int?) - Optional - The full clock bias in nanoseconds.
- **hardwareClockDiscontinuityCount** (int?) - Optional - The count of hardware clock discontinuities.
- **leapSecond** (int?) - Optional - The current leap second value.
- **timeNanos** (int?) - Optional - The time of the measurement in nanoseconds.
- **timeUncertaintyNanos** (double?) - Optional - The uncertainty of the time measurement in nanoseconds.

### Implementation
```dart
Clock({
  this.contents,
  this.biasNanos,
  this.biasUncertaintyNanos,
  this.driftNanosPerSecond,
  this.driftUncertaintyNanosPerSecond,
  this.fullBiasNanos,
  this.hardwareClockDiscontinuityCount,
  this.leapSecond,
  this.timeNanos,
  this.timeUncertaintyNanos,
});
```
```

--------------------------------

### Clock Methods

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_measurement_model/Clock-class.html

Lists the methods available for the Clock class.

```APIDOC
## Clock Methods

tojSon() → Map<String, dynamic>
```

--------------------------------

### toString Method

Source: https://pub.dev/documentation/raw_gnss/latest/raw_gnss/RawGnss-class.html

Returns a string representation of the RawGnss object.

```APIDOC
## toString()

### Description
Returns a string representation of this object.

### Returns
String - A string representation of the object.

### Inherited
Yes
```

--------------------------------

### GnssMeasurementModel Constructor Implementation

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_measurement_model/GnssMeasurementModel/GnssMeasurementModel.html

This is the implementation of the GnssMeasurementModel constructor. It initializes the class properties with the provided values.

```dart
GnssMeasurementModel({
  this.contents,
  this.string,
  this.measurements,
  this.clock,
});
```

--------------------------------

### GnssMeasurementModel Methods

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_measurement_model/GnssMeasurementModel-class.html

Methods available on the GnssMeasurementModel class.

```APIDOC
## Methods 

noSuchMethod(Invocation invocation) → dynamic 

ttoJson() → Map<String, dynamic> 

tosTring() → String
```

--------------------------------

### Measurement Constructor

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_measurement_model/Measurement/Measurement.html

Initializes a new Measurement object with various GNSS measurement parameters. All parameters are optional.

```dart
Measurement({
  this.contents,
  this.accumulatedDeltaRangeMeters,
  this.accumulatedDeltaRangeState,
  this.accumulatedDeltaRangeUncertaintyMeters,
  this.automaticGainControlLevelDb,
  this.carrierFrequencyHz,
  this.cn0DbHz,
  this.constellationType,
  this.multipathIndicator,
  this.pseudorangeRateMetersPerSecond,
  this.pseudorangeRateUncertaintyMetersPerSecond,
  this.receivedSvTimeNanos,
  this.receivedSvTimeUncertaintyNanos,
  this.snrInDb,
  this.state,
  this.svid,
  this.timeOffsetNanos,
  this.string,
});
```

--------------------------------

### GnssStatusModel Constructor Implementation

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_status_model/GnssStatusModel/GnssStatusModel.html

This is the implementation of the GnssStatusModel constructor, which initializes the class properties.

```dart
GnssStatusModel({
  this.satelliteCount,
  this.hashCodec,
  this.status,
});
```

--------------------------------

### GnssStatusModel.fromJson Factory Constructor

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_status_model/GnssStatusModel-class.html

Creates a GnssStatusModel instance from a JSON map.

```APIDOC
## GnssStatusModel.fromJson

### Description
Creates a GnssStatusModel instance from a JSON map.

### Parameters
- **json** (Map<String, dynamic>) - Required - The JSON map to parse.
```

--------------------------------

### Measurement Constructor

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_measurement_model/Measurement/Measurement.html

The Measurement constructor allows for the initialization of a Measurement object with various GNSS measurement-related properties.

```APIDOC
## Measurement Constructor

### Description
Initializes a new instance of the Measurement class with specified GNSS measurement parameters.

### Parameters
- **contents** (int?) - Optional - Represents the contents of the measurement.
- **accumulatedDeltaRangeMeters** (double?) - Optional - The accumulated delta range in meters.
- **accumulatedDeltaRangeState** (int?) - Optional - The state of the accumulated delta range.
- **accumulatedDeltaRangeUncertaintyMeters** (double?) - Optional - The uncertainty of the accumulated delta range in meters.
- **automaticGainControlLevelDb** (double?) - Optional - The automatic gain control level in dB.
- **carrierFrequencyHz** (double?) - Optional - The carrier frequency in Hz.
- **cn0DbHz** (double?) - Optional - The carrier-to-noise density ratio in dB-Hz.
- **constellationType** (int?) - Optional - The type of the satellite constellation.
- **multipathIndicator** (int?) - Optional - Indicates multipath presence.
- **pseudorangeRateMetersPerSecond** (double?) - Optional - The pseudorange rate in meters per second.
- **pseudorangeRateUncertaintyMetersPerSecond** (double?) - Optional - The uncertainty of the pseudorange rate in meters per second.
- **receivedSvTimeNanos** (int?) - Optional - The time of the received satellite signal in nanoseconds.
- **receivedSvTimeUncertaintyNanos** (int?) - Optional - The uncertainty of the received satellite signal time in nanoseconds.
- **snrInDb** (double?) - Optional - The signal-to-noise ratio in dB.
- **state** (int?) - Optional - The state of the measurement.
- **svid** (int?) - Optional - The satellite vehicle ID.
- **timeOffsetNanos** (double?) - Optional - The time offset in nanoseconds.
- **string** (String?) - Optional - A string representation of the measurement.

### Implementation
```dart
Measurement({
  this.contents,
  this.accumulatedDeltaRangeMeters,
  this.accumulatedDeltaRangeState,
  this.accumulatedDeltaRangeUncertaintyMeters,
  this.automaticGainControlLevelDb,
  this.carrierFrequencyHz,
  this.cn0DbHz,
  this.constellationType,
  this.multipathIndicator,
  this.pseudorangeRateMetersPerSecond,
  this.pseudorangeRateUncertaintyMetersPerSecond,
  this.receivedSvTimeNanos,
  this.receivedSvTimeUncertaintyNanos,
  this.snrInDb,
  this.state,
  this.svid,
  this.timeOffsetNanos,
  this.string,
});
```
```

--------------------------------

### Listen to GNSS Measurement Events

Source: https://pub.dev/packages/raw_gnss

Use this snippet to subscribe to a stream of GNSS measurement events. Ensure the raw_gnss package is initialized.

```dart
RawGnss().gnssMeasurementEvents.listen((e) {});
```

--------------------------------

### Status.fromJson Constructor

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_status_model/Status-class.html

Creates a Status object from a JSON map.

```APIDOC
## Status.fromJson(Map<String, dynamic> json)

### Description
Factory constructor to create a Status object by parsing a JSON map.

### Parameters
- **json** (Map<String, dynamic>) - A map containing the GNSS status data in JSON format.
```

--------------------------------

### Status Constructor Implementation

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_status_model/Status/Status.html

This is the implementation of the Status constructor, used to initialize a Status object with provided GNSS status parameters.

```dart
Status({
  this.azimuthDegrees,
  this.carrierFrequencyHz,
  this.cn0DbHz,
  this.constellationType,
  this.elevationDegrees,
  this.svid,
  this.hasAlmanacData,
  this.hasCarrierFrequencyHz,
  this.hasEphemerisData,
  this.usedInFix,
});
```

--------------------------------

### Clock.fromJson

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_measurement_model/Clock/Clock.fromJson.html

Creates a Clock instance by parsing a JSON map. It handles potential null values for each field and converts specific fields to double where appropriate.

```APIDOC
## Clock.fromJson constructor

### Description
Parses a JSON map to create a Clock object. This factory constructor handles the conversion of JSON data into the corresponding Clock object properties, including type casting for numerical values.

### Parameters
#### Path Parameters
None

#### Query Parameters
None

#### Request Body
- **json** (Map<String, dynamic>) - Required - A map containing the clock data, where keys are property names and values are their corresponding data.

### Request Example
```json
{
  "contents": "some_content",
  "biasNanos": 123.45,
  "biasUncertaintyNanos": 0.1,
  "driftNanosPerSecond": 0.001,
  "driftUncertaintyNanosPerSecond": 0.0001,
  "fullBiasNanos": 67890,
  "hardwareClockDiscontinuityCount": 5,
  "leapSecond": 18,
  "timeNanos": 1678886400000000000,
  "timeUncertaintyNanos": 0.05
}
```

### Response
#### Success Response (200)
- **Clock** (object) - A Clock object populated with data from the provided JSON map.

#### Response Example
```json
{
  "contents": "some_content",
  "biasNanos": 123.45,
  "biasUncertaintyNanos": 0.1,
  "driftNanosPerSecond": 0.001,
  "driftUncertaintyNanosPerSecond": 0.0001,
  "fullBiasNanos": 67890,
  "hardwareClockDiscontinuityCount": 5,
  "leapSecond": 18,
  "timeNanos": 1678886400000000000,
  "timeUncertaintyNanos": 0.05
}
```
```

--------------------------------

### Clock Constructor Signature

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_measurement_model/Clock/Clock.html

Defines the parameters accepted by the Clock constructor. Use this to initialize a Clock object with specific GNSS measurement properties.

```dart
Clock({
  1. int? contents,
  2. double? biasNanos,
  3. double? biasUncertaintyNanos,
  4. double? driftNanosPerSecond,
  5. double? driftUncertaintyNanosPerSecond,
  6. int? fullBiasNanos,
  7. int? hardwareClockDiscontinuityCount,
  8. int? leapSecond,
  9. int? timeNanos,
  10. double? timeUncertaintyNanos,
})
```

--------------------------------

### Status.fromJson Factory Constructor

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_status_model/Status/Status.fromJson.html

The `fromJson` factory constructor takes a `Map<String, dynamic>` and returns a `Status` object. It parses various GNSS status fields from the JSON, handling potential null values and type conversions.

```APIDOC
## Status.fromJson Factory Constructor

### Description
Creates a `Status` object by parsing a JSON map. This constructor is useful for deserializing GNSS status data from external sources.

### Method Signature
```dart
factory Status.fromJson(Map<String, dynamic> json)
```

### Parameters
- **json** (Map<String, dynamic>) - A map containing the GNSS status data.

### Returns
- **Status** - A `Status` object populated with data from the JSON map.

### Implementation Details
The constructor maps JSON keys to `Status` object properties, performing type conversions (e.g., to `double`) and handling null values by assigning `null` if the JSON value is absent or null.

### Example Usage
```dart
final Map<String, dynamic> jsonData = {
  "azimuthDegrees": 45.5,
  "carrierFrequencyHz": 1575420000.0,
  "cn0DbHz": 35.2,
  "constellationType": 1,
  "elevationDegrees": 60.1,
  "svid": 12,
  "hasAlmanacData": true,
  "hasCarrierFrequencyHz": true,
  "hasEphemerisData": true,
  "usedInFix": true
};

final Status status = Status.fromJson(jsonData);

print(status.azimuthDegrees); // Output: 45.5
print(status.svid); // Output: 12
```
```

--------------------------------

### GnssMeasurementModel.fromJson Factory Constructor

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_measurement_model/GnssMeasurementModel/GnssMeasurementModel.fromJson.html

Use this factory constructor to parse a JSON map and create a GnssMeasurementModel instance. It handles nested objects and lists, converting them to their respective model types.

```dart
factory GnssMeasurementModel.fromJson(Map<String, dynamic> json) =>
    GnssMeasurementModel(
      contents: json["contents"] == null ? null : json["contents"],
      string: json["string"] == null ? null : json["string"],
      measurements: json["measurements"] == null
          ? null
          : List<Measurement>.from(json["measurements"].map(
              (x) => Measurement.fromJson(Map<String, dynamic>.from(x)))),
      clock: json["clock"] == null
          ? null
          : Clock.fromJson(Map<String, dynamic>.from(json["clock"])),
    );
```

--------------------------------

### Measurement Class Methods

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_measurement_model/Measurement-class.html

Details the methods available for the Measurement class, including `toJson` for serialization and `toString` for string representation.

```APIDOC
## Methods 

noSuchMethod(Invocation invocation) → dynamic 
     Invoked when a nonexistent method or property is accessed. 
inherited 

ttoJson() → Map<String, dynamic> 
     

toString() → String 
     A string representation of this object. 
inherited
```

--------------------------------

### Clock.fromJson Factory Constructor

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_measurement_model/Clock/Clock.fromJson.html

Use this factory constructor to parse a JSON map and create a Clock instance. It handles null checks and type conversions for various clock parameters.

```dart
factory Clock.fromJson(Map<String, dynamic> json) => Clock(
      contents: json["contents"] == null ? null : json["contents"],
      biasNanos:
          json["biasNanos"] == null ? null : json["biasNanos"].toDouble(),
      biasUncertaintyNanos: json["biasUncertaintyNanos"] == null
          ? null
          : json["biasUncertaintyNanos"].toDouble(),
      driftNanosPerSecond: json["driftNanosPerSecond"] == null
          ? null
          : json["driftNanosPerSecond"].toDouble(),
      driftUncertaintyNanosPerSecond:
          json["driftUncertaintyNanosPerSecond"] == null
              ? null
              : json["driftUncertaintyNanosPerSecond"].toDouble(),
      fullBiasNanos:
          json["fullBiasNanos"] == null ? null : json["fullBiasNanos"],
      hardwareClockDiscontinuityCount:
          json["hardwareClockDiscontinuityCount"] == null
              ? null
              : json["hardwareClockDiscontinuityCount"],
      leapSecond: json["leapSecond"] == null ? null : json["leapSecond"],
      timeNanos: json["timeNanos"] == null ? null : json["timeNanos"],
      timeUncertaintyNanos: json["timeUncertaintyNanos"] == null
          ? null
          : json["timeUncertaintyNanos"].toDouble(),
    );
```

--------------------------------

### Clock Properties

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_measurement_model/Clock-class.html

Details the properties available on the Clock class.

```APIDOC
## Clock Properties

biasNanos → double?

biasUncertaintyNanos → double?

contents → int?

driftNanosPerSecond → double?

driftUncertaintyNanosPerSecond → double?

fullBiasNanos → int?

hardwareClockDiscontinuityCount → int?

leapSecond → int?

timeNanos → int?

timeUncertaintyNanos → double?
```

--------------------------------

### Clock Constructor Implementation

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_measurement_model/Clock/Clock.html

The implementation of the Clock constructor, assigning the provided parameters to the object's properties. Ensure all relevant properties are passed during initialization.

```dart
Clock({
  this.contents,
  this.biasNanos,
  this.biasUncertaintyNanos,
  this.driftNanosPerSecond,
  this.driftUncertaintyNanosPerSecond,
  this.fullBiasNanos,
  this.hardwareClockDiscontinuityCount,
  this.leapSecond,
  this.timeNanos,
  this.timeUncertaintyNanos,
});
```

--------------------------------

### GnssStatusModel.fromJson

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_status_model/GnssStatusModel/GnssStatusModel.fromJson.html

Creates a `GnssStatusModel` instance by parsing a JSON map. It handles the conversion of satellite count, hash code, and a list of statuses from the JSON.

```APIDOC
## GnssStatusModel.fromJson

### Description
Parses a JSON map to create a `GnssStatusModel` object. This factory constructor is used to deserialize JSON data into a structured model.

### Method Signature
```dart
factory GnssStatusModel.fromJson(Map<String, dynamic> json)
```

### Parameters
#### Path Parameters
None

#### Query Parameters
None

#### Request Body
- **json** (Map<String, dynamic>) - Required - A map representing the JSON data to be parsed.
  - **satelliteCount** (int?) - Optional - The number of satellites.
  - **hashCode** (int?) - Optional - The hash code of the model.
  - **status** (List<dynamic>?) - Optional - A list of status objects, where each object is a map that will be converted to a `Status` object.

### Request Example
```json
{
  "satelliteCount": 10,
  "hashCode": 123456789,
  "status": [
    {
      "code": "OK",
      "message": "All systems nominal"
    },
    {
      "code": "WARNING",
      "message": "Low signal strength"
    }
  ]
}
```

### Response
#### Success Response (GnssStatusModel)
- **satelliteCount** (int?) - The number of satellites.
- **hashCodec** (int?) - The hash code.
- **status** (List<Status>?) - A list of `Status` objects.

#### Response Example
```json
{
  "satelliteCount": 10,
  "hashCodec": 123456789,
  "status": [
    {
      "code": "OK",
      "message": "All systems nominal"
    },
    {
      "code": "WARNING",
      "message": "Low signal strength"
    }
  ]
}
```
```

--------------------------------

### GnssMeasurementModel.fromJson Factory Constructor

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_measurement_model/GnssMeasurementModel/GnssMeasurementModel.fromJson.html

This factory constructor allows you to create a GnssMeasurementModel object by parsing a JSON map. It handles the conversion of nested JSON structures into corresponding Dart objects.

```APIDOC
## GnssMeasurementModel.fromJson(Map<String, dynamic> json)

### Description
Creates a GnssMeasurementModel instance from a JSON map. This factory constructor is responsible for deserializing the JSON data, including nested objects like `contents`, `string`, `measurements`, and `clock`.

### Method
factory

### Parameters
#### Path Parameters
None

#### Query Parameters
None

#### Request Body
- **json** (Map<String, dynamic>) - Required - A map representing the JSON data to be parsed.
  - **contents** (dynamic) - Optional - The contents field from the JSON.
  - **string** (dynamic) - Optional - The string field from the JSON.
  - **measurements** (List<dynamic>) - Optional - A list of measurements, where each item is a JSON map that will be converted to a `Measurement` object.
  - **clock** (Map<String, dynamic>) - Optional - A map representing the clock data, which will be converted to a `Clock` object.

### Request Example
```json
{
  "contents": "some content",
  "string": "some string",
  "measurements": [
    {
      "latitude": 34.0,
      "longitude": -118.0
    }
  ],
  "clock": {
    "time": 1678886400000
  }
}
```

### Response
#### Success Response (GnssMeasurementModel)
- **contents** (dynamic) - The deserialized contents.
- **string** (dynamic) - The deserialized string.
- **measurements** (List<Measurement>) - The deserialized list of Measurement objects.
- **clock** (Clock) - The deserialized Clock object.

#### Response Example
(Instance of GnssMeasurementModel with parsed data)
```

--------------------------------

### Implementation of usedInFix Property

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_status_model/Status/usedInFix.html

This snippet shows the declaration of the nullable boolean `usedInFix` property.

```dart
bool? usedInFix;
```

--------------------------------

### GnssStatusModel.fromJson Factory Constructor

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_status_model/GnssStatusModel/GnssStatusModel.fromJson.html

Use this factory constructor to create a GnssStatusModel instance from a JSON map. It handles null checks for 'satelliteCount' and 'hashCode', and parses a list of 'status' objects using the Status.fromJson constructor.

```dart
factory GnssStatusModel.fromJson(Map<String, dynamic> json) =>
    GnssStatusModel(
      satelliteCount:
          json["satelliteCount"] == null ? null : json["satelliteCount"],
      hashCodec: json["hashCode"] == null ? null : json["hashCode"],
      status: json["status"] == null
          ? null
          : List<Status>.from(json["status"]
              .map((x) => Status.fromJson(Map<String, dynamic>.from(x)))),
    );
```

--------------------------------

### SVID Property Implementation

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_status_model/Status/svid.html

This snippet shows the basic declaration of the nullable integer svid property.

```dart
int? svid;
```

--------------------------------

### Measurement.fromJson Factory Constructor

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_measurement_model/Measurement/Measurement.fromJson.html

Use this factory constructor to parse a JSON map into a Measurement object. It handles null checks and type conversions for each field.

```dart
factory Measurement.fromJson(Map<String, dynamic> json) => Measurement(
      contents: json["contents"] == null ? null : json["contents"],
      accumulatedDeltaRangeMeters: json["accumulatedDeltaRangeMeters"] == null
          ? null
          : json["accumulatedDeltaRangeMeters"].toDouble(),
      accumulatedDeltaRangeState: json["accumulatedDeltaRangeState"] == null
          ? null
          : json["accumulatedDeltaRangeState"],
      accumulatedDeltaRangeUncertaintyMeters:
          json["accumulatedDeltaRangeUncertaintyMeters"] == null
              ? null
              : json["accumulatedDeltaRangeUncertaintyMeters"].toDouble(),
      automaticGainControlLevelDb: json["automaticGainControlLevelDb"] == null
          ? null
          : json["automaticGainControlLevelDb"].toDouble(),
      carrierFrequencyHz: json["carrierFrequencyHz"] == null
          ? null
          : json["carrierFrequencyHz"].toDouble(),
      cn0DbHz: json["cn0DbHz"] == null ? null : json["cn0DbHz"].toDouble(),
      constellationType: json["constellationType"] == null
          ? null
          : json["constellationType"],
      multipathIndicator: json["multipathIndicator"] == null
          ? null
          : json["multipathIndicator"],
      pseudorangeRateMetersPerSecond:
          json["pseudorangeRateMetersPerSecond"] == null
              ? null
              : json["pseudorangeRateMetersPerSecond"].toDouble(),
      pseudorangeRateUncertaintyMetersPerSecond:
          json["pseudorangeRateUncertaintyMetersPerSecond"] == null
              ? null
              : json["pseudorangeRateUncertaintyMetersPerSecond"].toDouble(),
      receivedSvTimeNanos: json["receivedSvTimeNanos"] == null
          ? null
          : json["receivedSvTimeNanos"],
      receivedSvTimeUncertaintyNanos:
          json["receivedSvTimeUncertaintyNanos"] == null
              ? null
              : json["receivedSvTimeUncertaintyNanos"],
      snrInDb: json["snrInDb"] == null ? null : json["snrInDb"].toDouble(),
      state: json["state"] == null ? null : json["state"],
      svid: json["svid"] == null ? null : json["svid"],
      timeOffsetNanos: json["timeOffsetNanos"] == null
          ? null
          : json["timeOffsetNanos"].toDouble(),
      string: json["string"] == null ? null : json["string"],
    );
```

--------------------------------

### GnssMeasurementModel Properties

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_measurement_model/GnssMeasurementModel-class.html

Properties available on the GnssMeasurementModel class.

```APIDOC
## Properties 

clock → Clock? 

contents → int? 

hashCode → int 

measurements → List<Measurement>? 

runtimeType → Type 

string → String?
```

--------------------------------

### Measurement.fromJson

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_measurement_model/Measurement/Measurement.fromJson.html

Creates a Measurement object by parsing a Map<String, dynamic> JSON input. It maps various GNSS measurement properties from the JSON, handling null values and type conversions.

```APIDOC
## Measurement.fromJson(Map<String, dynamic> json)

### Description
This factory constructor takes a JSON map and constructs a `Measurement` object. It populates the object's properties by extracting values from the provided map, with checks for nulls and appropriate type casting (e.g., to double for numerical values).

### Parameters
#### Path Parameters
None

#### Query Parameters
None

#### Request Body
- **json** (Map<String, dynamic>) - Required - A map representing the GNSS measurement data in JSON format.
  - **contents** (dynamic) - Optional - The contents of the measurement.
  - **accumulatedDeltaRangeMeters** (double) - Optional - The accumulated delta range in meters.
  - **accumulatedDeltaRangeState** (dynamic) - Optional - The state of the accumulated delta range.
  - **accumulatedDeltaRangeUncertaintyMeters** (double) - Optional - The uncertainty of the accumulated delta range in meters.
  - **automaticGainControlLevelDb** (double) - Optional - The automatic gain control level in dB.
  - **carrierFrequencyHz** (double) - Optional - The carrier frequency in Hz.
  - **cn0DbHz** (double) - Optional - The carrier-to-noise density ratio in dB-Hz.
  - **constellationType** (dynamic) - Optional - The type of satellite constellation.
  - **multipathIndicator** (dynamic) - Optional - The multipath indicator.
  - **pseudorangeRateMetersPerSecond** (double) - Optional - The pseudorange rate in meters per second.
  - **pseudorangeRateUncertaintyMetersPerSecond** (double) - Optional - The uncertainty of the pseudorange rate in meters per second.
  - **receivedSvTimeNanos** (dynamic) - Optional - The time of the received satellite signal in nanoseconds.
  - **receivedSvTimeUncertaintyNanos** (dynamic) - Optional - The uncertainty of the received satellite signal time in nanoseconds.
  - **snrInDb** (double) - Optional - The signal-to-noise ratio in dB.
  - **state** (dynamic) - Optional - The state of the measurement.
  - **svid** (dynamic) - Optional - The satellite vehicle ID.
  - **timeOffsetNanos** (double) - Optional - The time offset in nanoseconds.
  - **string** (dynamic) - Optional - A string representation (purpose not fully specified).

### Request Example
```json
{
  "contents": null,
  "accumulatedDeltaRangeMeters": 12345.67,
  "accumulatedDeltaRangeState": 1,
  "accumulatedDeltaRangeUncertaintyMeters": 0.5,
  "automaticGainControlLevelDb": 30.5,
  "carrierFrequencyHz": 1575.42,
  "cn0DbHz": 40.2,
  "constellationType": 1,
  "multipathIndicator": 0,
  "pseudorangeRateMetersPerSecond": 100.1,
  "pseudorangeRateUncertaintyMetersPerSecond": 0.05,
  "receivedSvTimeNanos": 1678886400000000000,
  "receivedSvTimeUncertaintyNanos": 1000,
  "snrInDb": 25.5,
  "state": 0,
  "svid": 1,
  "timeOffsetNanos": 0.000001,
  "string": "Example String"
}
```

### Response
#### Success Response (200)
Returns a `Measurement` object populated with data from the JSON input.

#### Response Example
(This would be an instance of the `Measurement` class, not directly representable as JSON in this context, but conceptually it holds the parsed data.)
```

--------------------------------

### Status.fromJson Factory Constructor

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_status_model/Status/Status.fromJson.html

Use this factory constructor to parse a JSON map and create a Status object. It handles null checks for each field, converting numeric values to doubles where appropriate.

```dart
factory Status.fromJson(Map<String, dynamic> json) => Status(
      azimuthDegrees: json["azimuthDegrees"] == null
          ? null
          : json["azimuthDegrees"].toDouble(),
      carrierFrequencyHz: json["carrierFrequencyHz"] == null
          ? null
          : json["carrierFrequencyHz"].toDouble(),
      cn0DbHz: json["cn0DbHz"] == null ? null : json["cn0DbHz"].toDouble(),
      constellationType: json["constellationType"] == null
          ? null
          : json["constellationType"],
      elevationDegrees: json["elevationDegrees"] == null
          ? null
          : json["elevationDegrees"].toDouble(),
      svid: json["svid"] == null ? null : json["svid"],
      hasAlmanacData:
          json["hasAlmanacData"] == null ? null : json["hasAlmanacData"],
      hasCarrierFrequencyHz: json["hasCarrierFrequencyHz"] == null
          ? null
          : json["hasCarrierFrequencyHz"],
      hasEphemerisData:
          json["hasEphemerisData"] == null ? null : json["hasEphemerisData"],
      usedInFix: json["usedInFix"] == null ? null : json["usedInFix"],
    );
```

--------------------------------

### gnssNavigationMessageEvents Property

Source: https://pub.dev/documentation/raw_gnss/latest/raw_gnss/RawGnss-class.html

A stream representing GNSS navigation message events.

```APIDOC
## gnssNavigationMessageEvents

### Description
Getter for GnssNavigationMessage events. Provides a stream of navigation message data.

### Type
Stream

### Access
Read-only
```

--------------------------------

### Measurement Class Operators

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_measurement_model/Measurement-class.html

Describes the operators available for the Measurement class, specifically the equality operator (`==`).

```APIDOC
## Operators 

operator ==(Object other) → bool 
     The equality operator. 
inherited
```

--------------------------------

### Listen to GNSS Navigation Messages

Source: https://pub.dev/packages/raw_gnss

Subscribe to a stream for GNSS navigation messages. This is useful for analyzing satellite communication data. Requires the raw_gnss package.

```dart
RawGnss().gnssNavigationMessageEvents.listen((e) {});
```

--------------------------------

### String Property Implementation

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_measurement_model/GnssMeasurementModel/string.html

This snippet shows the declaration of a nullable string property named 'string' within the GnssMeasurementModel.

```dart
final String? string;
```

--------------------------------

### hashCodec Property Implementation

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_status_model/GnssStatusModel/hashCodec.html

This snippet shows the declaration of the hashCodec property as a nullable integer.

```dart
int? hashCodec;
```

--------------------------------

### Declare fullBiasNanos Property

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_measurement_model/Clock/fullBiasNanos.html

This snippet shows the declaration of the fullBiasNanos property as an optional integer.

```java
final int? fullBiasNanos;
```

--------------------------------

### Listen to GNSS Status Events

Source: https://pub.dev/packages/raw_gnss

This code snippet allows you to listen for GNSS status events, such as changes in satellite connectivity or accuracy. Initialize the raw_gnss package before use.

```dart
RawGnss().gnssStatusEvents.listen((e) {});
```

--------------------------------

### toJson method

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_measurement_model/GnssMeasurementModel/toJson.html

Converts the GnssMeasurementModel object into a Map<String, dynamic> representation, suitable for JSON serialization. It includes the model's contents, string representation, measurements, and clock information.

```APIDOC
## toJson method

### Description
Converts the GnssMeasurementModel object into a JSON-compatible Map.

### Method Signature
`Map<String, dynamic> toJson()`

### Implementation Details
The method constructs a map containing the following fields:
- `contents`: The contents of the model, if available.
- `string`: The string representation of the model, if available.
- `measurements`: A list of measurements, each converted to its JSON representation, if available.
- `clock`: The clock information, converted to its JSON representation, if available.

### Code Example
```dart
Map<String, dynamic> toJson() => {
      "contents": contents == null ? null : contents,
      "string": string == null ? null : string,
      "measurements": measurements == null
          ? null
          : List<dynamic>.from(measurements!.map((x) => x.toJson())),
      "clock": clock == null ? null : clock!.toJson(),
    };
```
```

--------------------------------

### gnssStatusEvents

Source: https://pub.dev/documentation/raw_gnss/latest/raw_gnss/RawGnss/gnssStatusEvents.html

Provides a stream of GnssStatusModel events. This getter allows you to subscribe to real-time updates on GNSS status.

```APIDOC
## gnssStatusEvents property

### Description
Getter for GnssMeasurement events. This provides a stream of `GnssStatusModel` objects, allowing for real-time monitoring of GNSS status.

### Method Signature
`Stream<GnssStatusModel> get gnssStatusEvents`

### Usage
Subscribe to the stream to receive updates:
```dart
// Assuming you have an instance of the class that exposes gnssStatusEvents
// For example: myGnssManager.gnssStatusEvents.listen((status) { ... });
```

### Implementation Details
This getter initializes and returns a broadcast stream that processes raw measurement events into `GnssStatusModel` objects.
```

--------------------------------

### gnssStatusModelFromJson Function

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_status_model/gnssStatusModelFromJson.html

This function takes a JSON string as input and returns a GnssStatusModel object by decoding the JSON and calling the fromJson factory constructor.

```APIDOC
## gnssStatusModelFromJson Function

### Description
Parses a JSON string into a GnssStatusModel object.

### Parameters
#### Path Parameters
- **str** (String) - Required - The JSON string to parse.

### Implementation
```dart
GnssStatusModel gnssStatusModelFromJson(String str) =>
    GnssStatusModel.fromJson(json.decode(str));
```

### Request Example
```json
{
  "example": "{\"key\": \"value\"}"
}
```

### Response
#### Success Response (GnssStatusModel)
- **GnssStatusModel** - The parsed GnssStatusModel object.

### Response Example
```json
{
  "example": "GnssStatusModel object representation"
}
```
```

--------------------------------

### gnssMeasurementEvents Property

Source: https://pub.dev/documentation/raw_gnss/latest/raw_gnss/RawGnss-class.html

A stream of GnssMeasurementModel objects representing GNSS measurement events.

```APIDOC
## gnssMeasurementEvents

### Description
Getter for GnssMeasurement events. Provides a stream of GnssMeasurementModel objects.

### Type
Stream<GnssMeasurementModel>

### Access
Read-only
```

--------------------------------

### gnssMeasurementEvents Property

Source: https://pub.dev/documentation/raw_gnss/latest/raw_gnss/RawGnss/gnssMeasurementEvents.html

Provides a stream of GnssMeasurementModel objects, representing real-time GNSS measurement events.

```APIDOC
## gnssMeasurementEvents Property

### Description
Getter for GnssMeasurement events. This property returns a `Stream<GnssMeasurementModel>` that emits GNSS measurement data as it becomes available.

### Method
Getter

### Return Type
`Stream<GnssMeasurementModel>`

### Usage Example
```dart
// Assuming you have an instance of the GNSS service
Stream<GnssMeasurementModel> gnssEvents = gnssService.gnssMeasurementEvents;

gnssEvents.listen((measurement) {
  // Process each GNSS measurement event
  print('Received GNSS measurement: $measurement');
});
```
```

--------------------------------

### Convert JSON String to GnssMeasurementModel

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_measurement_model/gnssMeasurementModelFromJson.html

Use this function to parse a JSON string and create a GnssMeasurementModel object. Ensure the input string is valid JSON.

```dart
GnssMeasurementModel gnssMeasurementModelFromJson(String str) =>
    GnssMeasurementModel.fromJson(json.decode(str));
```

--------------------------------

### toJson Method

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_status_model/Status-class.html

Converts the Status object to a JSON-serializable map.

```APIDOC
## toJson() → Map<String, dynamic>

### Description
Serializes the Status object into a Map<String, dynamic> suitable for JSON encoding.

### Returns
A Map<String, dynamic> representing the Status object.
```

--------------------------------

### Declare measurements property

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_measurement_model/GnssMeasurementModel/measurements.html

This snippet shows the declaration of the 'measurements' property, which is a nullable list of Measurement objects.

```dart
final List<Measurement>? measurements;
```

--------------------------------

### Implement gnssStatusModelFromJson

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_status_model/gnssStatusModelFromJson.html

Use this function to convert a JSON string into a GnssStatusModel object. Ensure the input string is valid JSON.

```dart
GnssStatusModel gnssStatusModelFromJson(String str) =>
    GnssStatusModel.fromJson(json.decode(str));
```

--------------------------------

### gnssStatusEvents Property

Source: https://pub.dev/documentation/raw_gnss/latest/raw_gnss/RawGnss-class.html

A stream of GnssStatusModel objects representing GNSS status events.

```APIDOC
## gnssStatusEvents

### Description
Getter for GnssStatus events. Provides a stream of GnssStatusModel objects.

### Type
Stream<GnssStatusModel>

### Access
Read-only
```

--------------------------------

### hasAlmanacData Property Implementation

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_status_model/Status/hasAlmanacData.html

This snippet shows the declaration of the nullable boolean hasAlmanacData property.

```dart
bool? hasAlmanacData;
```

--------------------------------

### azimuthDegrees Property Implementation

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_status_model/Status/azimuthDegrees.html

This snippet shows the declaration of the nullable double azimuthDegrees property.

```dart
double? azimuthDegrees;
```

--------------------------------

### Declare Multipath Indicator Property

Source: https://pub.dev/documentation/raw_gnss/latest/gnss_measurement_model/Measurement/multipathIndicator.html

This snippet shows the declaration of the nullable integer `multipathIndicator` property.

```dart
final int? multipathIndicator;
```