dsim_ideal_gravity Class Reference [Builtin Models]

Built-in gravity model for an ideal planet.Use this with the dsim_rigid_body model to simulation an object in orbit about a planet. More...

Inheritance diagram for dsim_ideal_gravity:

List of all members.

Public Member Functions
	dsim_ideal_gravity (dsim_model_setup *setup)
void	initialize_data ()
void	initialization_complete ()
void	rhs (double t, double jd)

---

Detailed Description

Built-in gravity model for an ideal planet.

Use this with the dsim_rigid_body model to simulation an object in orbit about a planet.

Point mass gravity model.

---

Constructor & Destructor Documentation

dsim_ideal_gravity::dsim_ideal_gravity

(

dsim_model_setup *

setup )

Default constructor; no actions are necessary here.

Parameters:

setup

The dsim_model_setup object

---

Member Function Documentation

void dsim_ideal_gravity::initialization_complete

(

)

[virtual]

Perform final initializations. In this case, request the parent mass and position and mark these variables as cointegrated.

Reimplemented from dsim_model.

void dsim_ideal_gravity::initialize_data

(

)

[virtual]

Create the single parameter for the model, mu, and configure the timestep.

Reimplemented from dsim_model.

void dsim_ideal_gravity::rhs	(	double	t,
		double	jd
	)		[virtual]

The dynamics for a central body force, shown in the formula below. This model has no states itself, but it applies a force to the parent object using a "apply_force" message. The model will flag an error if the position magnitude is zero.

Parameters:

t	Elapsed time, unused
jd	Julian date, unused

Reimplemented from dsim_model.