public static MapCoord ToMapCoord(this Location mapPoint)
{
var mapCoord = new MapCoord {Latitude = mapPoint.Latitude,
Longitude = mapPoint.Longitude,
ProjectionWkid = CoordinateSystems.Wgs84ProjectionWkid};
return mapCoord;
}
public static MapCoord ToWebMercator(this MapCoord mapCoord)
{
if (mapCoord.ProjectionWkid == CoordinateSystems.WebMercatorProjectionWkid)
{
return mapCoord;
}
var wgs84XLon = mapCoord.Longitude;
var wgs84YLat = mapCoord.Latitude;
if ((Math.Abs(wgs84XLon) > 180 || Math.Abs(wgs84YLat) > 90))
{
throw new IndexOutOfRangeException("WGS84 coordinates out of bounds");
}
var num = wgs84XLon * 0.017453292519943295;
var x = 6378137.0 * num;
var a = wgs84YLat * 0.017453292519943295;
wgs84XLon = x;
wgs84YLat = 3189068.5 * Math.Log((1.0 + Math.Sin(a)) / (1.0 - Math.Sin(a)));
var reprojPoint = new MapCoord { Latitude = wgs84YLat,
Longitude = wgs84XLon,
ProjectionWkid = CoordinateSystems.WebMercatorProjectionWkid
};
return reprojPoint;
}
public static double KmDistanceFrom(this MapCoord wgs84Coords1, MapCoord wgs84Coords2)
{
var location1Reproj = wgs84Coords1.ToWebMercator();
var location2Reproj = wgs84Coords2.ToWebMercator();
var meterDistance = location1Reproj.ToPoint().DistanceFrom(location2Reproj.ToPoint());
var kmDistance = meterDistance/1000;
return kmDistance;
}
private void ShowFlag(MapCoord coord, Uri imageUri)
{
var mapPoint = coord.ToEsriWebMercatorMapPoint();
if (_flagsGraphicsLayer == null || mapPoint == null)
{
throw new ArgumentNullException("coord", "Coordinates or Graphic layers is null");
}
var symbol = new PictureMarkerSymbol {Source = new BitmapImage(imageUri),
OffsetX=1,
OffsetY=30};
// Ação quando o usuário responder o local
var graphic = new Graphic
{
Symbol = symbol,
Geometry = mapPoint
};
_flagsGraphicsLayer.Graphics.Add(graphic);
}
public static MapCoord ToGeographic(this MapCoord mapCoord)
{
if (mapCoord.ProjectionWkid == CoordinateSystems.Wgs84ProjectionWkid)
{
return mapCoord;
}
var mercatorXLon = mapCoord.Longitude;
var mercatorYLat = mapCoord.Latitude;
if (Math.Abs(mercatorXLon) < 180 && Math.Abs(mercatorYLat) < 90)
{
throw new IndexOutOfRangeException("It appears to be Geographic coordinates");
}
if ((Math.Abs(mercatorXLon) > 20037508.3427892) || (Math.Abs(mercatorYLat) > 20037508.3427892))
{
throw new IndexOutOfRangeException("WebMercator coordinates out of bounds");
}
var x = mercatorXLon;
var y = mercatorYLat;
var num3 = x / 6378137.0;
var num4 = num3 * 57.295779513082323;
var num5 = Math.Floor(((num4 + 180.0) / 360.0));
var num6 = num4 - (num5 * 360.0);
var num7 = 1.5707963267948966 - (2.0 * Math.Atan(Math.Exp((-1.0 * y) / 6378137.0)));
mercatorXLon = num6;
mercatorYLat = num7 * 57.295779513082323;
var reprojPoint = new MapCoord
{
Latitude = mercatorYLat,
Longitude = mercatorXLon,
ProjectionWkid = CoordinateSystems.Wgs84ProjectionWkid
};
return reprojPoint;
}
public void ShowTargetFlag(MapCoord coord, Uri imageUri)
{
ShowFlag(coord, imageUri);
}
public void ShowClickedFlag(MapCoord coord, Uri imageUri)
{
ShowFlag(coord, imageUri);
}
private void ShowFlag(MapCoord coord, Uri imageUri, bool target)
{
if (_informationLayer == null)
{
throw new NullReferenceException("Map not already created!");
}
var hotSpot = new HotSpot();
if (target)
{
hotSpot.X = 0.15;
hotSpot.Y = 0.85;
}
else
{
hotSpot.X = 0.22;
hotSpot.Y = 0.9;
}
var reprojCoord = coord.ToGeographic();
var mapPinPoint = new MapPinPoint {ImageSource = new BitmapImage(imageUri)};
MapLayer.SetHotSpot(mapPinPoint, hotSpot);
MapLayer.SetLocation(mapPinPoint, new Location(reprojCoord.Latitude, reprojCoord.Longitude));
_informationLayer.Items.Add(mapPinPoint);
}
private void MapClick(MapCoord coord)
{
ShowClickedFlag(coord);
}
private void ShowClickedFlag(MapCoord handCoordinate)
{
_mapHandler.ShowClickedFlag(handCoordinate, new Uri("/Resources/Images/flag_target.png", UriKind.Relative));
}