GravityEngine2.GSMapDisplay Class Reference

Display objects and trajectories on a map projection of a planet. More...

Inheritance diagram for GravityEngine2.GSMapDisplay:

Public Member Functions
override List< int >	Init ()
	Initialize the objects for this display controller. This is called by GSController init as part of its Start()
float float y	MapProject (double theta, double phiIn)
override Vector3	MapToScene (Vector3 rWorldAbs, double time)
	Map from the world space to the display space:
Public Member Functions inherited from GravityEngine2.GSDisplay
void	ActiveSet (bool value)
	Change the active status.
void	DisplayBodyRemoveByBodyId (int id)
	Remove all GSDisplayObjects with the given bodyId.
delegate void	DisplayInScene (GECore ge, MapToSceneFn mapToScene, double timeWorld, bool alwaysUpdate=false)
void	DisplayObjectAdd (GSDisplayObject gdo)
	Add a GSDisplayObject (typically a GSDisplayBody or GSDisplayOrbit). Different display objects may have different update methods or choose to register custom display functions so they are asked to "add themselves" via AddToSceneDisplay(). As part of this they must call RegisterDisplayObject() [which is where the "book-keeping" is done.].
void	DisplayObjectRemove (GSDisplayObject gdo)
	Remove a GSDisplayObject (e.g. GSDisplayBody, GSDisplayOrbit etc.)
virtual void	DisplayUpdate (GECore ge, double elapsedWorldTime)
	Main update loop for display of bodies and orbits in the scene. (Internal)
string	DumpAll ()
delegate Vector3	MapToSceneFn (Vector3 rWorld, double time=-1)
void	ParticleSetup (double dt, double timeStart, GBUnits.GEScaler geScaler)
void	ParticlesUpdate (double lenPhysToWorld)
List< GSParticles >	ParticleSystems ()
int	RegisterDisplayObject (GSDisplayObject gdo, int bodyId, Transform transform=null, DisplayInScene displayInScene=null, bool trajectory=false, LineRenderer trajLine=null)
void	UpdateDisplayObjectBody (long displayId, int bodyId)
	Update the internal state of GSDisplayObject. Can be used to designate a new bodyId to track.

Public Attributes
Vector3	aboveMapOffset
GSBody	centerBody
LineRenderer	debug3060
bool	earthOffset
float	height = 50.0f
Vector3	heightAxis = new Vector3(0, 0, 1)
Vector3	longitude0Axis = Vector3.right
float	longitude0Deg = 0
float	width = 100.0f
Vector3	widthAxis = new Vector3(1, 0, 0)
Public Attributes inherited from GravityEngine2.GSDisplay
bool	active = true
GSDisplayObject[]	addBodies
AddMode	addMode = AddMode.CHILDREN
CR3BP.ReferencePoint	cr3bpRefPoint = CR3BP.ReferencePoint.NONE
DisplayMode	displayMode = DisplayMode.INTERPOLATE
bool	editorScalingFoldout = false
GSController	gsController
float	maxSceneDimension = 10000
float	scale = 1.0f
GSBody	wrtBody
bool	xzOrbitPlane = true

Protected Member Functions
override void	DisplayUpdateInit (GECore ge, double elapsedWorldTime)
override void	TrajectoryUpdate (GECore geTrajectory)
	In a map display need to thread the trajectory under the map when we wrap off the edge (either horizontally or vertically). In this case we need to add more than one point for a given traj. point, hence the need to override the entire traj. update.

Additional Inherited Members
Public Types inherited from GravityEngine2.GSDisplay
enum	AddMode { CHILDREN , LIST , SCENE }
	Mode the controller will use to find GSBody objects to add CHILDREN: Scan all children of this controller for GSBody LIST: Add objects explicitly listed SCENE: Find all objects in the scene with GSBody components.
enum	DisplayMode { DIRECT , INTERPOLATE }
Protected Attributes inherited from GravityEngine2.GSDisplay
int[]	displayIndices
GSDisplayObjectInfo[]	displayObjects
	displayObjects may be sparsely filled. The empty slots are managed by a Stack and the allocated slots are listed in an array of indices.
Queue< int >	displayOptQueue
Vector3	displayPosition
Quaternion	displayRotation
bool	maintainCoRo
int	numDO
float	queueConsumeRate
float	queueConsumeTokens
Vector3	wrtWorldPosition

Detailed Description

Display objects and trajectories on a map projection of a planet.

NOTE: to have the usual Cartesian X, Y plane need to have the camera located at -Z looking toward the origin, since Unity has a LH coordinate system.

Member Function Documentation

DisplayUpdateInit()

override void GravityEngine2.GSMapDisplay.DisplayUpdateInit ( GECore ge, double elapsedWorldTime )

protectedvirtual

Parameters

ge
elapsedWorldTime

Reimplemented from GravityEngine2.GSDisplay.

Init()

override List< int > GravityEngine2.GSMapDisplay.Init ( )

virtual

Initialize the objects for this display controller. This is called by GSController init as part of its Start()

• find the GSDisplayObject implementations (mostly GSDisplayBody)
• find the GSDisplayOrbit
• arrange internal data structure by having above objects register with this class
• determine if any bodies want trajectory recording and pass their ids back

Returns

List of trajectories

Reimplemented from GravityEngine2.GSDisplay.

MapToScene()

override Vector3 GravityEngine2.GSMapDisplay.MapToScene ( Vector3 rWorld, double time )

virtual

Map from the world space to the display space:

• if XZ orbit mode, then flip YZ coords
• apply scale from world to display
• add position offset and rotation from the GSDisplay transform

Extensions of this class will commonly override this method to produce a different mapping e.g. GSDisplayMercator

Typically the time is not required, but some display controllers may elect to show things in a rotating frame and the time is needed in those cases.

Parameters

rWorld	Position in world space and default world units
time	world time for this point

Returns

Reimplemented from GravityEngine2.GSDisplay.

TrajectoryUpdate()

override void GravityEngine2.GSMapDisplay.TrajectoryUpdate ( GECore geTrajectory )

protectedvirtual

In a map display need to thread the trajectory under the map when we wrap off the edge (either horizontally or vertically). In this case we need to add more than one point for a given traj. point, hence the need to override the entire traj. update.

Since this is the only use case, C&P the common code for now.

Parameters

geTrajectory

Reimplemented from GravityEngine2.GSDisplay.

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

• ge2/GE2/Assets/GravityEngine2/Runtime/InScene/Display/GSMapDisplay.cs