/// <summary>
/// Initializes a new instance of the <see cref="Place" /> class.
/// </summary>
/// <param name="location"> The geographical location of this pin. </param>
/// <param name="id"> The ID of this place. </param>
/// <param name="name"> The name of this place. </param>
public Place(Location location, Guid id = default(Guid), string name = DefaultName)
{
if (location == null)
{
throw new ArgumentNullException("location", "Location is required in order to create a place.");
}
Location = location;
Id = id == default(Guid) ? Guid.NewGuid() : id;
Name = name;
}
public bool Equals(Location other)
{
if (ReferenceEquals(null, other))
{
return false;
}
if (ReferenceEquals(this, other))
{
return true;
}
return other.Latitude.Equals(Latitude) && other.Longitude.Equals(Longitude);
}
/// <summary>
/// Decodes the encoded polyline points string.
/// </summary>
/// <remarks>
/// Translated from the Original Java code located at http://www.geekyblogger.com/2010/12/decoding-polylines-from-google-maps.html.
/// </remarks>
public static List<Location> DecodePolylinePoints(String encodedPoints)
{
var poly = new List<Location>();
var chars = encodedPoints.ToCharArray();
int index = 0, len = encodedPoints.Length;
int lat = 0, lng = 0;
while (index < len)
{
int b, shift = 0, result = 0;
do
{
b = chars[index++] - 63;
result |= (b & 0x1f) << shift;
shift += 5;
} while (b >= 0x20);
var dlat = ((result & 1) != 0 ? ~(result >> 1) : (result >> 1));
lat += dlat;
shift = 0;
result = 0;
do
{
b = chars[index++] - 63;
result |= (b & 0x1f) << shift;
shift += 5;
} while (b >= 0x20);
var dlng = ((result & 1) != 0 ? ~(result >> 1) : (result >> 1));
lng += dlng;
var p = new Location
{
Latitude = lat/1E5,
Longitude = lng/1E5
};
poly.Add(p);
}
return poly;
}
/// <summary>
/// Called when <see cref="CommandAddPlace" /> is executed.
/// </summary>
private void OnAddPlace(Location location)
{
VisualState.Value = VisualStates.Default;
var newPlace = _data.AddNewPlace(location);
newPlace.Color = Data.DataExtensions.GetRandomElementColor();
}
