Generates gravity for two solar systems. More...

#include <gravity_two_solar_system.h>

Inherits dsim_model.

Public Member Functions
	gravity_two_solar_system (dsim_model_setup *setup)
	Constructor.

	~gravity_two_solar_system ()
	Destructor.

void *	describe_setup (void *ds)
	Describe the setup data.

bool	parse_setup (const char command, const char data)
	Parse input setup commands. More...

void	initialize_data ()
	Initialize the model data. More...

void	initialization_complete ()
	Finish initialization.

void	initialize_timestep ()
	Computations done prior to numerical integration. More...

void	rhs (double t, double jd)
	Right hand side.

void	complete_timestep ()
	Computations done after numerical integration.

Protected Attributes
dsim_variable	n_files
	Number of SPK kernel files loaded.

dsim_variable	accel
	Matrix for storing acceleration.

dsim_variable	parent_mass
	mass of parent object

dsim_variable	parent_pos
	position of parent object

dsim_variable	parent_vel
	velocity of parent object

char *	frame
	String for SPICE frame, name, i.e. "J2000" or "ECLIPJ2000".

int	n_targets
	Number of planet targets listed in planet_index.

Published
Matrix storing NAIF integer IDs of targets
dsim_variable	planet_index

dsim_variable	positionBody
	Matrix for storing positions of bodies.

dsim_variable	velocityBody
	Matrix for storing velocities of bodies.

dsim_variable	radiusBody
	Matrix for storing radii of bodies.

dsim_variable	rotationMatrixBody
	Matrix for storing rotation of bodies.

dsim_variable	angularRateVectorBody
	Matrix for storing rotation rate vector of bodies.

dsim_variable	muBody_dsim
	Matrix for storing mu.

dsim_variable	observer
	NAIF integer ID of observer, defaults to sun (10)

Detailed Description

Generates gravity for two solar systems.

This model computes the gravitational accelerations for the sun's solar system using SPICE and a second solar system.

Member Function Documentation

bool gravity_two_solar_system::parse_setup	(	const char *	command,
		const char *	data
	)

Parse input setup commands.

Parses AddBody and AddCenter lines and adds planets to the linked list.

The AddBody command is followed by the planet name or ID, for example

AddBody Sun, AddBody 10

AddCenter Earth, AddCenter 399

AddBody Jupiter

A separate line is required for each planet.

Adding a planet causes a set of published variables to be added to the model, including:

A frame may be selected using SetFrame. The available frames are

void gravity_two_solar_system::initialize_data ( )

Initialize the model data.

String for SPICE frame, name, i.e. "J2000" or "ECLIPJ2000"

void gravity_two_solar_system::initialize_timestep ( )

Computations done prior to numerical integration.

Update the ephemeris and the planet rotation.

The documentation for this class was generated from the following files: