Esempio n. 1
0
        private static void GpsDataReceived(GpsPoint gpsPoint)
        {
            var lat = gpsPoint.Latitude.ToString("F4");
            var lon = gpsPoint.Longitude.ToString("F4");

            Debug.Print("Lat/long: " + lat + ", " + lon);
        }
Esempio n. 2
0
        private void ProcessBytes(string gpsData)
        {
            while (gpsData.IndexOf('\n') != -1)
            {
                var parts = gpsData.Split('\n');
                _data += parts[0];
                _data  = _data.Trim();
                if (_data != string.Empty)
                {
                    if (_data.IndexOf("$GPRMS") != 0)
                    {
                        int g = 9;
                    }

                    if (_data.IndexOf("$GPRMC") == 0)
                    {
                        //  Debug.Print("GOT $GPRMC LINE");
                        if (GpsData != null)
                        {
                            var gpsPoint = GprmcParser.Parse(_data);

                            if (gpsPoint == null)
                            {
                                continue;
                            }

                            var isOk = true;

                            if (_lastPoint != null)
                            {
                                var distance = GeoDistanceCalculator.GetDistanceInMiles(gpsPoint.Latitude, gpsPoint.Longitude,
                                                                                        _lastPoint.Latitude, _lastPoint.Longitude);
                                double distInFeet = distance * 5280;
                                //  Debug.Print("distance = " + distance + " mi (" + distInFeet + " feet)");
                                if (distance < _minDistanceBetweenPoints)
                                {
                                    // Too close to the last point....don't raise the event
                                    isOk = false;
                                }

                                var timeDelta = (DateTime.Now - _lastDateTime);

                                if (timeDelta.Seconds > 60)
                                {
                                    // A minute has gone by, so update
                                    isOk          = true;
                                    _lastDateTime = DateTime.Now;
                                }
                            }
                            _lastPoint = gpsPoint;

                            // Raise the event
                            if (isOk)
                            {
                                GpsData(gpsPoint);
                            }
                        }
                    }

                    RawLine?.Invoke(_data);
                }
                gpsData = parts[1];
                _data   = string.Empty;
            }
            _data += gpsData;
        }