public void Round_Coordinates_By_Meters()
{
// ARRANGE
GeoCoordinateExtended source = geoFile.Routes[0].Points[0];
GeoCoordinateExtended compareTo = source.Clone();
Double roundingMeters = 2D;
// ACT
compareTo.Round(roundingMeters); // Round second coordinate to 2 meter grid point
Double distance = compareTo.GetDistanceTo(source); // Calculate the distance in meters
Double hypotenuse = Math.Sqrt(Math.Pow(roundingMeters, 2) + Math.Pow(roundingMeters, 2));
// ASSERT
hypotenuse.Should().BeGreaterThan(distance); // Should be smaller than the hypotenuse
}
/// <summary>
/// Remove not moving points and time from the list of coordinates
/// </summary>
/// <param name="points">The list of points to be cleaned of not moving time</param>
/// <returns>The list of points with the not moving time removed</returns>
public static List <GeoCoordinateExtended> RemoveNotMoving(this List <GeoCoordinateExtended> points)
{
List <GeoCoordinateExtended> reference = points.Clone().CalculateSpeeds(); // Make a copy of the points first to break the reference and re-calculate the speeds
List <KeyValuePair <TimeSpan, GeoCoordinateExtended> > timeDiffArray = new List <KeyValuePair <TimeSpan, GeoCoordinateExtended> >(); // New list of points with the timedifference between them as the key
List <GeoCoordinateExtended> cleaned = new List <GeoCoordinateExtended>()
{
reference[0]
}; // Create the new clean array, the first point always has no speed so always add this to the cleaned array as a starting point
// Loop all points in the track and only count those that had speed (movement) between the two points
var coordId = 1; // Start from the second point as the first will always have no speed (from another point)
while (coordId <= reference.Count - 1)
{
if (reference[coordId].Speed != 0)
{
TimeSpan timeDiff = reference[coordId].Time - reference[coordId - 1].Time; // Calculate the time to the previous coordinate
timeDiffArray.Add(new KeyValuePair <TimeSpan, GeoCoordinateExtended>(timeDiff, reference[coordId])); // Add the coordinate that shows movement with the time difference to the last coordinate
}
coordId++;
}
// Loop the array with the none moving time stripped out and re-calculate the coordinate times based on the time differences
DateTime pointInTime = cleaned[0].Time; // Take the start time of the origional track to be the new start time
for (var refId = 0; refId < timeDiffArray.Count; refId++)
{
GeoCoordinateExtended manipulated = timeDiffArray[refId].Value; // Create a reference to the point on the track to have the time manipluated
pointInTime += timeDiffArray[refId].Key; // Add the time difference to the rolling point in time
manipulated.Time = pointInTime; // Set the new time to the point so the new point is still the same difference in time between the GPS pings to the last point that moved
cleaned.Add(manipulated); // Add the time manipulated point to the cleaned array
}
// Re-calculate the speeds on the new points
cleaned.CalculateSpeeds();
// Return the cleaned list of points
return(cleaned);
}
public static Double LatitudeDistance = EarthRadius / 360.0D; // What is 1 degree of latitude
public static List <GeoCoordinateExtended> InfillPositions(this List <GeoCoordinateExtended> points)
{
GeoCoordinateExtended lastValidPosition = null;
points.ForEach(pt =>
{
// Not a bad coordinate?
if (!pt.BadCoordinate)
{
lastValidPosition = pt; // Assign this as the last known good position
}
else if (pt.BadCoordinate && lastValidPosition != null)
{
// Infill the position from the last known good
pt.Latitude = lastValidPosition.Latitude;
pt.Longitude = lastValidPosition.Longitude;
pt.Altitude = lastValidPosition.Altitude;
pt.BadCoordinate = false;
lastValidPosition = pt; // Reassign this as the last known good
}
});
return(points);
}
=> JsonConvert.DeserializeObject <List <GeoCoordinateExtended> >(JsonConvert.SerializeObject(points)); // Serialise and then deserialise the object to break the references to new objects
public static GeoCoordinateExtended Clone(this GeoCoordinateExtended coord)
=> JsonConvert.DeserializeObject <GeoCoordinateExtended>(JsonConvert.SerializeObject(coord));
