/// <summary>
/// Event when map is clicked.
/// Creates a new marker at location clicked,
/// adds it to the treelistview and draws on the map
/// </summary>
/// <param name="PointClick">Point coordinate of click</param>
/// <param name="e"></param>
private void Map_OnMapClick(PointLatLng PointClick, MouseEventArgs e)
{
PointItem point = new PointItem(PointClick.Lat, PointClick.Lng, 1);
point.DrawOnMap(map, polygons, markers);
treeListView1.AddObject(point);
CenterMapToPoint(map.Position);
}
public CameraTrigger(PointItem point, double radius, int id)
{
Point = point;
Radius = radius;
Id = id;
Label = Id.ToString();
Child = new List <object>();
Child.Add(Point);
Captured = false;
}
/// <summary>
/// Calculates the distance in metres to given point.
/// </summary>
/// <param name="q">Point</param>
/// <returns>Distance to point</returns>
public double DistanceBetweenPoints(PointItem q)
{
const double earthRadius = 6371e3;
var latrad1 = Latitude * Math.PI / 180;
var lonrad1 = Longitude * Math.PI / 180;
var latrad2 = q.Latitude * Math.PI / 180;
var lonrad2 = q.Longitude * Math.PI / 180;
var deltalat = (q.Latitude - Latitude) * Math.PI / 180;
var deltalon = (q.Longitude - Longitude) * Math.PI / 180;
double a = Math.Sin(deltalat / 2) * Math.Sin(deltalat / 2) + Math.Cos(latrad1) * Math.Cos(latrad2) * Math.Sin(deltalon / 2) * Math.Sin(deltalon / 2);
double distance = earthRadius * 2 * Math.Atan2(Math.Sqrt(a), Math.Sqrt(1 - a));
return(distance);
}
/// <summary>
/// Constructor for use when a point and bearing are known.
/// </summary>
/// <param name="q"></param>
/// <param name="deltalat"></param>
/// <param name="deltalon"></param>
/// <param name="id"></param>
public LineItem(PointItem q, double deltalat, double deltalon, int id)
{
Id = id;
c = Color.Black;
PointItems = new List <PointItem>();
PointItems.Add(q);
PointItem item;
Label = id.ToString();
item = new PointItem(q.Latitude + deltalat, q.Longitude + deltalon, 1);
PointItems.Add(item);
Length = PointItems[0].DistanceBetweenPoints(PointItems[1]);
CreateGMapPolygon();
RefreshChildren();
}
public NMEAHandler(string[] delimited)
{
if (delimited[0] == "$GPRMC" && delimited[3] != "")
{
double lat = double.Parse(delimited[3]);
double lon = double.Parse(delimited[5]);
double latdec = ConvertToDecimalDegrees(lat);
double londec = ConvertToDecimalDegrees(lon);
// Negates latitude if in Southern Hemisphere
if (delimited[4] == "S")
{
latdec = -latdec;
}
//Negates longitude if in Western Hemisphere
if (delimited[6] == "W")
{
londec = -londec;
}
Point = new PointItem(latdec, londec, 0);
}
}
