public static Vector2 ToGlobalXY(this GeoLocalizacao geoLocalizacao,
PontoReferencia pontoInicial, PontoReferencia pontoFinal)
{
//Calculates x based on cos of average of the latitudes
var x = EARTH_RADIUS * geoLocalizacao.Longitude
* Math.Cos((pontoInicial.Localizacao.Latitude + pontoFinal.Localizacao.Latitude) / 2);
//Calculates y based on latitude
var y = EARTH_RADIUS * geoLocalizacao.Latitude.ToSingle();
return(new Vector2(x.ToSingle(), y));
}
public static IRenderer ToRenderer(this IPin pin,
PontoReferencia pontoInicial,
PontoReferencia pontoFinal,
Vector2 pontoInicialGlobal,
Vector2 pontoFinalGlobal,
IEngine2D engine)
{
var geoPos = pin.GetGeolocalizacao();
var pos = geoPos.ToScreenXY(pontoInicial,
pontoFinal,
pontoInicialGlobal,
pontoFinalGlobal);
return(new PinRenderer(pos, engine)
{
Cor = Color.FromHex("#313639")
});
}
public static Vector2 ToScreenXY(this GeoLocalizacao localizacao,
PontoReferencia pontoInicial, PontoReferencia pontoFinal,
Vector2 pontoInicialGlobal, Vector2 pontoFinalGlobal)
{
//Calculate global X and Y for projection point
var pos = ToGlobalXY(localizacao, pontoInicial, pontoFinal);
//Calculate the percentage of Global X position in relation to total global width
var perX = ((pos.X - pontoInicialGlobal.X)
/ (pontoFinalGlobal.X - pontoInicialGlobal.X));
//Calculate the percentage of Global Y position in relation to total global height
var perY = ((pos.Y - pontoInicialGlobal.Y)
/ (pontoFinalGlobal.Y - pontoInicialGlobal.Y));
var x = pontoInicial.Referencia.X +
(pontoFinal.Referencia.X - pontoInicial.Referencia.X) * perX;
var y = pontoInicial.Referencia.Y +
(pontoFinal.Referencia.Y - pontoInicial.Referencia.Y) * perY;
return(new Vector2(x, y));
}
