/**
* Evaluate disturbing potential in geocentric coordinates.
*
* @param[in] X geocentric coordinate of point (meters).
* @param[in] Y geocentric coordinate of point (meters).
* @param[in] Z geocentric coordinate of point (meters).
* @return \e T = \e W - \e U the disturbing potential (also called the
* anomalous potential) (m<sup>2</sup> s<sup>−2</sup>).
**********************************************************************/
Math::real T(real X, real Y, real Z) const throw() {
real dummy;
return InternalT(X, Y, Z, dummy, dummy, dummy, false, true);
}
/**
* Evaluate disturbing potential in geocentric coordinates.
*
* @param[in] lon the geographic longitude (degrees).
* @return \e T = \e W - \e U the disturbing potential (also called the
* anomalous potential) (m<sup>2</sup> s<sup>−2</sup>).
**********************************************************************/
Math::real T(real lon) const {
real clam, slam, dummy;
CircularEngine::cossin(lon, clam, slam);
return InternalT(clam, slam, dummy, dummy, dummy, false, true);
}
/**
* Evaluate the components of the gravity disturbance in geocentric
* coordinates.
*
* @param[in] X geocentric coordinate of point (meters).
* @param[in] Y geocentric coordinate of point (meters).
* @param[in] Z geocentric coordinate of point (meters).
* @param[out] deltaX the \e X component of the gravity disturbance
* (m s<sup>−2</sup>).
* @param[out] deltaY the \e Y component of the gravity disturbance
* (m s<sup>−2</sup>).
* @param[out] deltaZ the \e Z component of the gravity disturbance
* (m s<sup>−2</sup>).
* @return \e T = \e W - \e U the disturbing potential (also called the
* anomalous potential) (m<sup>2</sup> s<sup>−2</sup>).
**********************************************************************/
Math::real T(real X, real Y, real Z,
real& deltaX, real& deltaY, real& deltaZ) const throw()
{ return InternalT(X, Y, Z, deltaX, deltaY, deltaZ, true, true); }
/**
* Evaluate the components of the gravity disturbance in geocentric
* coordinates.
*
* @param[in] lon the geographic longitude (degrees).
* @param[out] deltaX the \e X component of the gravity disturbance
* (m s<sup>−2</sup>).
* @param[out] deltaY the \e Y component of the gravity disturbance
* (m s<sup>−2</sup>).
* @param[out] deltaZ the \e Z component of the gravity disturbance
* (m s<sup>−2</sup>).
* @return \e T = \e W - \e U the disturbing potential (also called the
* anomalous potential) (m<sup>2</sup> s<sup>−2</sup>).
**********************************************************************/
Math::real T(real lon, real& deltaX, real& deltaY, real& deltaZ)
const {
real clam, slam;
CircularEngine::cossin(lon, clam, slam);
return InternalT(clam, slam, deltaX, deltaY, deltaZ, true, true);
}
