GravityEngine2 Namespace Reference

Classes
class	BodyInitData
	Container class to hold common info for init of an orbital body. More...
class	Booster
	Booster External Acceleration. More...
class	CR3BP
	Circular Restricted Three Body Problem. More...
class	DustBall
class	DustRing
	Dust ring. Create a ring of particles in orbit around an NBody mass. Allows full control over the orbital attributes of the ring particles. More...
class	EarthAtmosphere
	Computes the acceleration due to drag in the Earth's atmosphere for a given height and velocity. More...
class	EarthSunlight
	Set the illumination direction for a directional light for the Earth based on evolving time in world seconds. More...
class	EphemerisData
	Contatiner class to hold info on ephemeris data read from a file. More...
class	EphemerisLoader
	Class to load ephemeris data and place is GEBodyState array. More...
class	EphemerisPropagator
	Code used by GEPhysicsCore to evolve according to an ephemeris table. The data values have been repackaged by GECore and converted into GE units by the time this code acts on them. More...
class	ExternalAccel
	The integrators in the GEPhysicsCore can be configured to include additional forces (beyond gravity) to their force computations. Typical examples include a continuous thrust rocket, atmospheric drag or changes to the gravitation force itself (e.g. 1/R) More...
class	GBUnits
	Gravity engine uses NBody units (nbu) (https://en.wikipedia.org/wiki/N-body_units) internally. This allows the numerical integration to work with values without worring about loss of precision due to odd choices of scale (e.g. galaxy simulation in cm). More...
class	GE2_Documentation
	Simple Script to provide a button to open related docs in a browser. More...
struct	GEBodyState
	Struct to hold the state information of a body being evolved in the GECore. Typically the information is in world units (unless the request to GEcore.StateById() specifically asked for GE internal units). More...
class	GEConst
class	GECore
	Gravity Engine Core Central class for evolution using gravity and propagators. More...
interface	GEListenerIF
class	GEManeuver
	GEmaneuver is the CLASS that represents a maneuver while it is being created and planned. As a class it is easy to adjust member variables during creation. It5 also holds a reference to the body to be applied (and optionally center it is relative to) by id. More...
struct	GEManeuverStruct
	Struct of types that are Burst/Job compatible to describe maneuvers for the IJob propagators. More...
class	GEPhysicsCore
	This (plus the. More...
class	GESphereCamera
	Key control to rotate camera boom using Arrow keys for rotation and < > keys for zoom. More...
class	GravityJ2
class	GravityMath
class	GSBinary
	Component to specify that two GSBody objects are in orbit around their mutual center of mass (CM). Use when the mass ratio of the two bodies m1/m2, m1 < m2 is non negligible. e.g. the Earth/Moon system. More...
class	GSBody
	A component for the in-scene representation of a body to be evolved with GE via a GravitySceneController. More...
class	GSBoosterMultiStage
	Specifies and controls a multi-stage rocket for launch from a planet surface. More...
class	GSCollider
	In Scene representation of a collider attached to a GSBody. More...
class	GSCommon
class	GSController
	The GSController (GSC) manages a set of gravitational bodies in an orbital system and their associated scene display components. There may be zero, one or many GSControllers that make reference to the gravitational bodies managed by this controller. More...
class	GSDisplay
	Control the display of all GSDisplay objects for a given GE. The GE is commonly implied by the use of GravitySceneController, otherwise it can be set via a script. More...
class	GSDisplay2D
	Display objects and trajectories on XY plot of ascent/launch path. More...
class	GSDisplay2DCoro
	Project the physical orbit onto the XZ view plane. More...
class	GSDisplayBody
	Class to display the location of a GSBody in a scene. More...
class	GSDisplayObject
	Abstract class to provide a API to allow display objects to add themselves to the GravitySceneDisplay (GSD) in the fashion they wish. More...
class	GSDisplayOrbit
	GSDisplayOrbit: This component has several usages: 1) Display an orbit for an existing (evolving) orbit in the scene. More...
class	GSDisplayOrbitPoint
	Display the specified point on the Orbit referenced by GSDisplayOrbit by moving the transform of this object to the correct location. More...
class	GSDisplayOrbitSegment
	Displays a segment of an orbit around a central body. More...
class	GSEarthAtmosphere
	Computes the acceleration due to drag in the Earth's atmosphere for a given height and velocity. More...
interface	GSExternalAcceleration
	Display class to allow a constant external acceleration to be added to an object that has a GRAVITY propagator. More...
class	GSLaunchDisplay
	Display objects and trajectories on XY plot of ascent/launch path. More...
class	GSMapDisplay
	Display objects and trajectories on a map projection of a planet. More...
class	GSParticles
	Evolve particles in the gravitation field computed by the GravityEngine. More...
class	GSStageDisplayMgr
	Manages the display of stages for a multi-stage booster. More...
class	GSTools
class	GSTransferShip
	Scene wrapper for the. More...
class	HohmannGeneral
	Hohmann transfer or rendezvous between any two circular orbits. Handles diffences in radius, inclination and RAAN (Omega). More...
class	I18N
interface	IGSParticlesInit
	Interface defining methods to be implemented to define particle positions and velocities for GravityParticles. More...
class	Integrators
class	InverseR
class	IonDrive
class	JPLHorizonTools
class	JPLThreeBodyCSV
	Script to use in Editor to read a CSV exported from the JPL Three Body website (https://ssd.jpl.nasa.gov/tools/periodic_orbits.html#/intro) More...
class	KeplerPropagator
	Code to propagate Kepler orbits (ellipse, parabola, hyperbola). More...
class	LambertBattin
class	LambertUniversal
	Calculate the universal Lambert transfer. This algorithm allows the transfer to be elliptic or hyperbolic as necessary to meet the designated transfer time. The transfer code can be used to determine the minimum energy transfer between the desired points/orbits - in this case the time of transfer is not specified. Additional API calls can be used to request a specific transfer time. It is frquently useful to obtain the most efficient transfer time and then use this as a baseline from which to investigate the dV cost of faster transfers. More...
class	LaunchSiteShim
	A kinda kludgy class to position a transform at the true physical surface of a planet and orient the indicated display axis model to be normal to the planets surface. More...
class	LeastSquaresFit
	Routines to do a linear least-squares fit. More...
class	LineScaler
class	Orbital
	Orbital utilities relating to classical orbital elements (COE) and converting between (r,v) <=> COE. More...
class	OrbitDisplayCommon
class	PKeplerPropagator
	Propagation using the PKEPLER algorithm from Vallado. More...
class	PolynomialSolver
class	SecantRootFind
	Secant root find method. More...
class	SGP4Propagator
	Code to propagate SGP4 satellites i.e. satellites in Earth orbit with modeling for atmosphere, oblate gravity, moon, sun etc. More...
struct	SGP4SatData
class	SGP4unit
class	SGP4utils
class	SolarMetaController
	The Solar System has a GSController for the motion of planets around the sun and separate controllers for any planets with satellites. Due to the difference length and mass scales these controllers will have different internal integration times. More...
class	SolarSystemBuilder
	SolarSystemBuilder is an Editor feature used to create a Solar System prior to running a scene. This class is just a struct like anchor for the editor operations. More...
class	SolarSystemTools
class	StructPool
	Utility to manage a pool of structs in GECore. More...
class	TimeUtils
class	TransferShip
	Class to determine the maneuvers required to get a ship at an existing position in orbit around a center body to a specified orbit. More...

Enumerations
enum	LambertMode { TO_R2 , INTERCEPT , RENDEZVOUS }
	Modes used internally to indicate type of calculation in ComputeXfer.
enum	ManeuverInfo {   USER , HG_IO_PHASE , HG_IO_X1 , HG_IO_X2 ,   HG_OI_PHASE , HG_OI_X1 , HG_OI_X2 , HG_CHV_1 ,   HG_CHV_2 , HG_SOP_1 , HG_SOP_2 , HG_CIAN_1 ,   LAM_1 , LAM_2 , LBAT_1 , LBAT_2 ,   INTERCEPT }
	It's useful to add info to a maneuver for debug that shows how the maneuver was generated (transfers etc.) Strings cannot be put into NativeArrays, so resort to tokens that can be decoded.
enum	ManeuverType { SET_VELOCITY , APPLY_DV , SCALAR_DV }

Functions
delegate void	DoneCallback (GEManeuver gem, GEPhysicsCore.PhysEvent physEvent)