// ----------- Part 8: member functions: set -----------------------------
// Set the Position given geodetic coordinates, system is set to Geodetic.
// @param lat geodetic latitude in degrees North
// @param lon geodetic longitude in degrees East
// @param ht height above the ellipsoid in meters
// @return a reference to this object.
// @throw GeometryException on invalid input
public void SetGeodetic(double lat, double lon, double ht,
EllipsoidModel ell)
{
if (lat > 90 || lat < -90)
{
throw new Exception("Invalid latitude in setGeodetic ");
}
this[0] = lat;
this[1] = lon;
if (this[1] < 0)
{
this[1] += 360 * (1 - Math.Ceiling(this[1] / 360));
}
else if (this[1] >= 360)
{
this[1] -= 360 * Math.Floor(this[1] / 360);
}
this[2] = ht;
if (ell != null)
{
Ellipsoid = ell;
}
System = CoordinateSystem.Geodetic;
}
public Position(Triple ABC, CoordinateSystem s, EllipsoidModel ell)
{
double a = ABC[0];
double b = ABC[1];
double c = ABC[2];
Initialize(a, b, c, s, ell);
}
// ----------- Part 12: private functions and member data -----------------
//
// Initialization function, used by the constructors.
// @param a coordinate [ X(m), or latitude (degrees N) ]
// @param b coordinate [ Y(m), or longitude (degrees E) ]
// @param c coordinate [ Z, height above ellipsoid or radius, in m ]
// @param s CoordinateSystem, defaults to Cartesian
// @param geiod pointer to a GeoidModel, default NULL (WGS84)
// @throw GeometryException on invalid input.
private void Initialize(double a, double b, double c,
CoordinateSystem s, EllipsoidModel ell)
{
double bb = b;
if (s == CoordinateSystem.Geodetic || s == CoordinateSystem.Geocentric)
{
if (a > 90 || a < -90)
{
throw new Exception("Invalid latitude in constructor: " + a.ToString());
}
if (bb < 0)
{
bb += 360 * (1 - Math.Ceiling(bb / 360));
}
else if (bb >= 360)
{
bb -= 360 * Math.Floor(bb / 360);
}
}
if (s == CoordinateSystem.Geocentric || s == CoordinateSystem.Spherical)
{
if (c < 0)
{
throw new Exception("Invalid radius in constructor: " + c);
}
}
if (s == CoordinateSystem.Spherical)
{
if (a < 0 || a > 180)
{
throw new Exception("Invalid theta in constructor: " + a);
}
if (bb < 0)
{
bb += 360 * (1 - Math.Ceiling(bb / 360));
}
else if (bb >= 360)
{
bb -= 360 * Math.Floor(bb / 360);
}
}
this[0] = a;
this[1] = bb;
this[2] = c;
System = s;
Ellipsoid = ell;
Tolerance = POSITION_TOLERANCE;
}
public Position(double a, double b, double c, CoordinateSystem s,
EllipsoidModel ell)
{
Initialize(a, b, c, s, ell);
}
