agi.foundation.tracking

(agi.foundation.tracking.graphics-2025r1.jar)

Class ViewEntityFromOffset<TEntity extends IEntityPosition>

java.lang.Object

agi.foundation.tracking.ViewEntityFromOffset<TEntity>

Type Parameters:

TEntity - The type of entity.

public class ViewEntityFromOffset<TEntity extends IEntityPosition>
extends Object

Tracks an entity with a Camera (get / set).

By default, Insight3D allows the user to control the view with the mouse, and this class does not interfere with that. While this view is active, the user can use the mouse to zoom in and out as well as rotate around the specified entity, even while this view makes sure the entity remains the focus point of the camera. If you would like to lock the view to a specific offset, you must disable Insight3D's default mouse handling. See MouseOptions (get) for details on adjusting mouse handling. This class only modifies camera properties related to Position (get / set) and ReferencePoint (get / set). All other properties can still be adjusted manually.

See Also:

ViewFromTo, Visualization with Insight3D topic

Constructor Summary

Constructors

Constructor and Description
ViewEntityFromOffset(TypeLiteral<TEntity> typeLiteralTEntity) Initializes a new instance.
ViewEntityFromOffset(TypeLiteral<TEntity> typeLiteralTEntity, Camera camera, TEntity entity, Cartesian offset, CentralBody centralBody) Creates a new instance, specifying all parameters.

Method Summary

Modifier and Type	Method and Description
Camera	getCamera() Gets the Camera (get / set).
CentralBody	getCentralBody() Gets the CentralBody (get / set) about which to rotate the camera.
TEntity	getEntity() Gets the entity to track.
Cartesian	getOffset() Gets the initial offset from the entity to place the camera, specified as AxesEastNorthUp.
void	resetView(Transaction transaction) Resets the camera view to look at the entity from the initial offset.
void	setCamera(Camera value) Sets the Camera (get / set).
void	setCentralBody(CentralBody value) Sets the CentralBody (get / set) about which to rotate the camera.
void	setEntity(TEntity value) Sets the entity to track.
void	setOffset(Cartesian value) Sets the initial offset from the entity to place the camera, specified as AxesEastNorthUp.
void	update(Transaction transaction) Moves the camera's reference point to the position of the tracked entity while offsetting the camera position by amount of entity movement.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ViewEntityFromOffset

public ViewEntityFromOffset(TypeLiteral<TEntity> typeLiteralTEntity)

Initializes a new instance.

Parameters:

typeLiteralTEntity - A TypeLiteral object representing the generic type TEntity.

ViewEntityFromOffset

public ViewEntityFromOffset(TypeLiteral<TEntity> typeLiteralTEntity,
                            Camera camera,
                            TEntity entity,
                            @Nonnull
                            Cartesian offset,
                            CentralBody centralBody)

Creates a new instance, specifying all parameters.

Parameters:

typeLiteralTEntity - A TypeLiteral object representing the generic type TEntity.

camera - The camera to use.

entity - The entity to track.

offset - The initial offset of the camera specified as AxesEastNorthUp from the entity's position.

centralBody - The CentralBody (get / set) about which to rotate the camera.

Method Detail

getCamera

public final Camera getCamera()

Gets the Camera (get / set).

setCamera

public final void setCamera(Camera value)

Sets the Camera (get / set).

getEntity

public final TEntity getEntity()

Gets the entity to track.

setEntity

public final void setEntity(TEntity value)

Sets the entity to track.

getOffset

@Nonnull
public final Cartesian getOffset()

Gets the initial offset from the entity to place the camera, specified as AxesEastNorthUp.

setOffset

public final void setOffset(@Nonnull
                            Cartesian value)

Sets the initial offset from the entity to place the camera, specified as AxesEastNorthUp.

getCentralBody

public final CentralBody getCentralBody()

Gets the CentralBody (get / set) about which to rotate the camera. Defaults to EarthCentralBody

setCentralBody

public final void setCentralBody(CentralBody value)

Sets the CentralBody (get / set) about which to rotate the camera. Defaults to EarthCentralBody

resetView

public final void resetView(Transaction transaction)

Resets the camera view to look at the entity from the initial offset.

Parameters:

transaction - The transaction to use.

update

public final void update(Transaction transaction)

Moves the camera's reference point to the position of the tracked entity while offsetting the camera position by amount of entity movement.

Parameters:

transaction - The transaction to use.

Throws:

ArgumentNullException - Thrown if transaction is null.

PropertyInvalidException - Thrown if Camera (get / set) is null.

PropertyInvalidException - Thrown if Entity (get / set) is null.