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Workspace Method ppathCalc

Description

Main method for calculation of propagation paths.

There exists only one function to calculate total propagation
paths and this is that function. The function is normally not
visible in the control file, it is called from inside yCalc.
A reason to call this function directly would be to plot a
propgation path.

The definition of a propgation path cannot be accomodated here.
For more information read the chapter on propagation paths in the
ARTS user guide and read the  on-line information for
ppath_step_agenda (type "arts -d ppath_step_agenda" ).

Authors: Patrick Eriksson

Synopsis

ppathCalc(

ppath, ppath_step_agenda, atmosphere_dim, p_grid, lat_grid, lon_grid, z_field, r_geoid, z_surface, cloudbox_on, cloudbox_limits, rte_pos, rte_los )

Variables

OUT	ppath	(Ppath)	The propagation path for one line-of-sight.
IN	ppath_step_agenda	(Agenda)	See agendas.cc.
IN	atmosphere_dim	(Index)	The atmospheric dimensionality (1-3).
IN	p_grid	(Vector)	The pressure grid.
IN	lat_grid	(Vector)	The latitude grid.
IN	lon_grid	(Vector)	The longitude grid.
IN	z_field	(Tensor3)	The field of geometrical altitudes.
IN	r_geoid	(Matrix)	Geoid radius.
IN	z_surface	(Matrix)	The surface altitude.
IN	cloudbox_on	(Index)	Flag to activate the cloud box.
IN	cloudbox_limits	(ArrayOfIndex)	The limits of the cloud box.
IN	rte_pos	(Vector)	A geographical position for radiative transfer calculations.
IN	rte_los	(Vector)	A line-of-sight for radiative transfer calculations.