public static Vector3 Get3DPoint(LatLongValue latLon, float sphereRadius, float heightMultiplier, float valueOffset, bool allowNegativeRadiiExtensions)
{
float radius;
if (allowNegativeRadiiExtensions)
{
radius = sphereRadius + (heightMultiplier * (latLon.scientificValue + valueOffset));
}
else
{
radius = sphereRadius + Mathf.Clamp(heightMultiplier * (latLon.scientificValue + valueOffset), 0.0f, Mathf.Infinity);
}
if ((-90.0f <= latLon.latitude) && (latLon.latitude <= 90.0f) && (-180.0f <= latLon.longitude) && (latLon.longitude <= 180.0f))
{
// We're assuming that z+ points towards the intersection of the prime meridian/equator
float z = radius * Mathf.Cos(latLon.longitude * Mathf.Deg2Rad) * Mathf.Cos(latLon.latitude * Mathf.Deg2Rad);
float x = -radius *Mathf.Sin(latLon.longitude *Mathf.Deg2Rad) * Mathf.Cos(latLon.latitude * Mathf.Deg2Rad);
float y = radius * Mathf.Sin(latLon.latitude * Mathf.Deg2Rad);
return(new Vector3(x, y, z));
}
Debug.LogError("Bad lat/long values given!");
return(new Vector3(0.0f, 0.0f, 0.0f));
}
public static LatLongValue GetLatLonFrom3DPoint(Vector3 point, Transform planetTransform)
{
LatLongValue latLon = new LatLongValue();
Vector3 normalizedVectorToPoint = (point - planetTransform.position).normalized;
Vector3 vectorInEarthSpace = planetTransform.InverseTransformDirection(normalizedVectorToPoint);
latLon.latitude = Mathf.Asin(vectorInEarthSpace.y) * Mathf.Rad2Deg;
float sign = Mathf.Sign(-Mathf.Asin(vectorInEarthSpace.x / Mathf.Cos(latLon.latitude * Mathf.Deg2Rad)) * Mathf.Rad2Deg);
latLon.longitude = sign * Mathf.Acos(Mathf.Clamp(vectorInEarthSpace.z / Mathf.Cos(latLon.latitude * Mathf.Deg2Rad), -1.0f, 1.0f)) * Mathf.Rad2Deg;
return(latLon);
}
