/// <summary>
/// Distance to another.
/// </summary>
public double Distance(C3DPoint Other)
{
double dx = x - Other.x;
double dy = y - Other.y;
double dz = z - Other.z;
return Math.Sqrt( dx*dx + dy * dy + dz * dz);
}
/// <summary>
/// Distance to another.
/// </summary>
public double Distance(C3DPoint Other)
{
double dx = x - Other.x;
double dy = y - Other.y;
double dz = z - Other.z;
return(Math.Sqrt(dx * dx + dy * dy + dz * dz));
}
/// <summary>
/// Slant Range.
/// </summary>
public double SlantRange(CGeoLatLong Other)
{
C3DPoint ptThis = new C3DPoint();
Geocentric(ptThis);
C3DPoint ptOther = new C3DPoint();
Other.Geocentric(ptOther);
return(ptThis.Distance(ptOther));
}
/// <summary>
/// Conversion to geocentric.
/// </summary>
public void Geocentric(C3DPoint xyzPoint)
{
if (!IsValid())
{
return;
}
double Sin_Lat = Math.Sin(m_dLat); // Math.Sin(Latitude)
double Cos_Lat = Math.Cos(m_dLat); // Math.Cos(Latitude)
xyzPoint.x = (Constants.conEARTH_RADIUS_METRES) * Cos_Lat * Math.Cos(m_dLong);
xyzPoint.y = (Constants.conEARTH_RADIUS_METRES) * Cos_Lat * Math.Sin(m_dLong);
xyzPoint.z = (Constants.conEARTH_RADIUS_METRES) * Sin_Lat;
return;
}
/// <summary>
/// Conversion to geocentric.
/// </summary>
public void GeocentricWSG84(C3DPoint xyzPoint)
{
if (!IsValid())
{
return;
}
double Sin_Lat = Math.Sin(m_dLat); // Math.Sin(Latitude)
double Cos_Lat = Math.Cos(m_dLat); // Math.Cos(Latitude)
double Sin2_Lat = Sin_Lat * Sin_Lat; // Square of Math.Sin(Latitude)
double Rn = Constants.conGeocent_Major / (Math.Sqrt(1.0e0 - Constants.conGeocent_e2 * Sin2_Lat)); // Earth radius at location
xyzPoint.x = Rn * Cos_Lat * Math.Cos(m_dLong);
xyzPoint.y = Rn * Cos_Lat * Math.Sin(m_dLong);
xyzPoint.z = (Rn * (1 - Constants.conGeocent_e2)) * Sin_Lat;
return;
}
/// <summary>
/// Slant Range.
/// </summary>
public double SlantRangeWSG84(CGeoLatLong Other)
{
C3DPoint ptThis = new C3DPoint();
GeocentricWSG84(ptThis);
C3DPoint ptOther = new C3DPoint();
Other.GeocentricWSG84(ptOther);
return ptThis.Distance(ptOther);
}
/// <summary>
/// Conversion to geocentric.
/// </summary>
public void GeocentricWSG84(C3DPoint xyzPoint)
{
if(!IsValid())
return;
double Sin_Lat = Math.Sin(m_dLat); // Math.Sin(Latitude)
double Cos_Lat = Math.Cos(m_dLat); // Math.Cos(Latitude)
double Sin2_Lat = Sin_Lat * Sin_Lat; // Square of Math.Sin(Latitude)
double Rn = Constants.conGeocent_Major / (Math.Sqrt(1.0e0 - Constants.conGeocent_e2 * Sin2_Lat)); // Earth radius at location
xyzPoint.x = Rn * Cos_Lat * Math.Cos(m_dLong);
xyzPoint.y = Rn * Cos_Lat * Math.Sin(m_dLong);
xyzPoint.z = (Rn * (1 - Constants.conGeocent_e2)) * Sin_Lat;
return;
}
/// <summary>
/// Conversion to geocentric.
/// </summary>
public void Geocentric(C3DPoint xyzPoint)
{
if(!IsValid())
return;
double Sin_Lat = Math.Sin(m_dLat); // Math.Sin(Latitude)
double Cos_Lat = Math.Cos(m_dLat); // Math.Cos(Latitude)
xyzPoint.x = (Constants.conEARTH_RADIUS_METRES) * Cos_Lat * Math.Cos(m_dLong);
xyzPoint.y = (Constants.conEARTH_RADIUS_METRES) * Cos_Lat * Math.Sin(m_dLong);
xyzPoint.z = (Constants.conEARTH_RADIUS_METRES) * Sin_Lat;
return;
}