Package gaiasky.scenegraph.camera

Class AbstractCamera

java.lang.Object

gaiasky.scenegraph.camera.AbstractCamera

All Implemented Interfaces:

ICamera

Direct Known Subclasses:

FovCamera, NaturalCamera, RelativisticCamera, SpacecraftCamera

public abstract class AbstractCamera
extends java.lang.Object
implements ICamera

Field Summary

Fields

Modifier and Type	Field	Description
protected float	angleEdgeRad	Angle from the center to the corner of the screen in scene coordinates, in radians
protected float	ar	Aspect ratio
double	CAM_FAR	Camera far value
double	CAM_NEAR	Camera near value
com.badlogic.gdx.graphics.PerspectiveCamera	camera	The main camera
protected com.badlogic.gdx.graphics.PerspectiveCamera[]	cameras	Vector with all perspective cameras
protected com.badlogic.gdx.graphics.PerspectiveCamera	camLeft	Stereoscopic mode cameras
protected com.badlogic.gdx.graphics.PerspectiveCamera	camRight	Stereoscopic mode cameras
protected IFocus	closest	The closest between closestBody and closestStar
protected IFocus	closestBody	Closest non-star body to the camera
protected IFocus	closestStar	The closest particle to the camera
protected Matrix4d	combined
protected double	distance	Distance of camera to center
float	fovFactor
protected Frustumd	frustumd
protected static Logger.Log	logger
protected CameraManager	parent	The parent
Vector3d	pos
Vector3d	posinv
protected com.badlogic.gdx.math.Matrix4	prevCombined
Vector3d	prevpos
protected Matrix4d	projection
Vector3d	shift
Vector3d	tmp
protected Matrix4d	view

Constructor Summary

Constructors

Constructor	Description
AbstractCamera(CameraManager parent)

Method Summary

Modifier and Type	Method	Description
void	checkClosestBody(IFocus cb)	Called after updating the body's distance to the cam, it updates the closest body in the camera to figure out the camera near
void	checkClosestParticle(IFocus star)	Sets the current closest particle to this camera.
void	computeGaiaScan(ITimeFrameProvider time, CelestialBody cb)
protected boolean	computeVisibleFovs(CelestialBody cb, FovCamera fcamera)	Returns true if a body with the given position is observed in any of the given directions using the given cone angle
void	copyParamsFrom(AbstractCamera other)
float	getAngleEdge()	Gets the angle of the edge of the screen, diagonally.
float	getAngleEdge(int width, int height, float angle)
com.badlogic.gdx.graphics.PerspectiveCamera	getCameraStereoLeft()
com.badlogic.gdx.graphics.PerspectiveCamera	getCameraStereoRight()
IFocus	getClosest()	Returns the current closest object
IFocus	getClosestBody()
IFocus	getClosestParticle()	Gets the current closest particle to this camera
ICamera	getCurrent()
double	getDistance()	Gets the distance from the camera to the centre of our reference frame (Sun)
double	getFar()
float	getFovFactor()
Vector3d	getInversePos()
CameraManager	getManager()
double	getNear()
Vector3d	getPos()
Vector3d	getPreviousPos()
com.badlogic.gdx.math.Matrix4	getPreviousProjView()
com.badlogic.gdx.math.Matrix4	getProjView()
IFocus	getSecondClosestBody()
Vector3d	getShift()
Vector3d	getVelocity()
boolean	isVisible(ITimeFrameProvider time, double viewAngle, Vector3d pos, double distToCamera)
boolean	isVisible(ITimeFrameProvider time, CelestialBody cb)
void	render(int rw, int rh)
void	setCameraStereoLeft(com.badlogic.gdx.graphics.PerspectiveCamera cam)
void	setCameraStereoRight(com.badlogic.gdx.graphics.PerspectiveCamera cam)
void	setClosest(IFocus focus)	Sets the closest of all
protected void	setFrustumPlanes(com.badlogic.gdx.graphics.PerspectiveCamera cam)
void	setPos(Vector3d pos)
void	setPreviousPos(Vector3d prevpos)
void	setPreviousProjView(com.badlogic.gdx.math.Matrix4 mat)
void	setShift(Vector3d shift)
void	update(com.badlogic.gdx.graphics.PerspectiveCamera cam, Vector3d position, Vector3d direction, Vector3d up)
void	updateAngleEdge(int width, int height)
void	updateFrustumPlanes()

Methods inherited from class java.lang.Object

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

Methods inherited from interface gaiasky.scenegraph.camera.ICamera

getCamera, getDirection, getDirections, getFocus, getFrontCameras, getMode, getNCameras, getSpeed, getTranslateUnits, getUp, isFocus, resize, setCamera, setDirection, update, updateMode

Field Detail

logger

protected static final Logger.Log logger

CAM_FAR

public double CAM_FAR

Camera far value

CAM_NEAR

public double CAM_NEAR

Camera near value

pos

public Vector3d pos

posinv

public Vector3d posinv

prevpos

public Vector3d prevpos

shift

public Vector3d shift

tmp

public Vector3d tmp

angleEdgeRad

protected float angleEdgeRad

Angle from the center to the corner of the screen in scene coordinates, in radians

ar

protected float ar

Aspect ratio

distance

protected double distance

Distance of camera to center

parent

protected CameraManager parent

The parent

camera

public com.badlogic.gdx.graphics.PerspectiveCamera camera

The main camera

camLeft

protected com.badlogic.gdx.graphics.PerspectiveCamera camLeft

Stereoscopic mode cameras

camRight

protected com.badlogic.gdx.graphics.PerspectiveCamera camRight

Stereoscopic mode cameras

cameras

protected com.badlogic.gdx.graphics.PerspectiveCamera[] cameras

Vector with all perspective cameras

projection

protected Matrix4d projection

view

protected Matrix4d view

combined

protected Matrix4d combined

frustumd

protected Frustumd frustumd

fovFactor

public float fovFactor

closestBody

protected IFocus closestBody

Closest non-star body to the camera

closestStar

protected IFocus closestStar

The closest particle to the camera

prevCombined

protected com.badlogic.gdx.math.Matrix4 prevCombined

closest

protected IFocus closest

The closest between closestBody and closestStar

Constructor Detail

AbstractCamera

public AbstractCamera(CameraManager parent)

Method Detail

updateAngleEdge

public void updateAngleEdge(int width,
                            int height)

Specified by:

updateAngleEdge in interface ICamera

getAngleEdge

public float getAngleEdge(int width,
                          int height,
                          float angle)

getFovFactor

public float getFovFactor()

Specified by:

getFovFactor in interface ICamera

getPos

public Vector3d getPos()

Specified by:

getPos in interface ICamera

setPos

public void setPos(Vector3d pos)

Specified by:

setPos in interface ICamera

getPreviousPos

public Vector3d getPreviousPos()

Specified by:

getPreviousPos in interface ICamera

setPreviousPos

public void setPreviousPos(Vector3d prevpos)

Specified by:

setPreviousPos in interface ICamera

getInversePos

public Vector3d getInversePos()

Specified by:

getInversePos in interface ICamera

getAngleEdge

public float getAngleEdge()

Description copied from interface: ICamera

Gets the angle of the edge of the screen, diagonally. It assumes the vertical angle is the field of view and corrects the horizontal using the aspect ratio. It depends on the viewport size and the field of view itself.

Specified by:

getAngleEdge in interface ICamera

Returns:

The angle in radians.

getManager

public CameraManager getManager()

Specified by:

getManager in interface ICamera

render

public void render(int rw,
                   int rh)

Specified by:

render in interface ICamera

getCurrent

public ICamera getCurrent()

Specified by:

getCurrent in interface ICamera

computeGaiaScan

public void computeGaiaScan(ITimeFrameProvider time,
                            CelestialBody cb)

Specified by:

computeGaiaScan in interface ICamera

isVisible

public boolean isVisible(ITimeFrameProvider time,
                         CelestialBody cb)

Specified by:

isVisible in interface ICamera

isVisible

public boolean isVisible(ITimeFrameProvider time,
                         double viewAngle,
                         Vector3d pos,
                         double distToCamera)

Specified by:

isVisible in interface ICamera

computeVisibleFovs

protected boolean computeVisibleFovs(CelestialBody cb,
                                     FovCamera fcamera)

Returns true if a body with the given position is observed in any of the given directions using the given cone angle

Parameters:

cb - The body.

fcamera - The FovCamera.

Returns:

True if the body is observed. False otherwise.

getDistance

public double getDistance()

Description copied from interface: ICamera

Gets the distance from the camera to the centre of our reference frame (Sun)

Specified by:

getDistance in interface ICamera

Returns:

The distance

copyParamsFrom

public void copyParamsFrom(AbstractCamera other)

getCameraStereoLeft

public com.badlogic.gdx.graphics.PerspectiveCamera getCameraStereoLeft()

Specified by:

getCameraStereoLeft in interface ICamera

getCameraStereoRight

public com.badlogic.gdx.graphics.PerspectiveCamera getCameraStereoRight()

Specified by:

getCameraStereoRight in interface ICamera

setCameraStereoLeft

public void setCameraStereoLeft(com.badlogic.gdx.graphics.PerspectiveCamera cam)

Specified by:

setCameraStereoLeft in interface ICamera

setCameraStereoRight

public void setCameraStereoRight(com.badlogic.gdx.graphics.PerspectiveCamera cam)

Specified by:

setCameraStereoRight in interface ICamera

setShift

public void setShift(Vector3d shift)

Specified by:

setShift in interface ICamera

getShift

public Vector3d getShift()

Specified by:

getShift in interface ICamera

update

public void update(com.badlogic.gdx.graphics.PerspectiveCamera cam,
                   Vector3d position,
                   Vector3d direction,
                   Vector3d up)

checkClosestBody

public void checkClosestBody(IFocus cb)

Description copied from interface: ICamera

Called after updating the body's distance to the cam, it updates the closest body in the camera to figure out the camera near

Specified by:

checkClosestBody in interface ICamera

Parameters:

cb - The body to check

getClosestBody

public IFocus getClosestBody()

Specified by:

getClosestBody in interface ICamera

getSecondClosestBody

public IFocus getSecondClosestBody()

Specified by:

getSecondClosestBody in interface ICamera

getClosestParticle

public IFocus getClosestParticle()

Description copied from interface: ICamera

Gets the current closest particle to this camera

Specified by:

getClosestParticle in interface ICamera

Returns:

The closest particle

checkClosestParticle

public void checkClosestParticle(IFocus star)

Description copied from interface: ICamera

Sets the current closest particle to this camera. This will be only set if the given particle is closer than the current.

Specified by:

checkClosestParticle in interface ICamera

Parameters:

star - The candidate particle

getClosest

public IFocus getClosest()

Description copied from interface: ICamera

Returns the current closest object

Specified by:

getClosest in interface ICamera

setClosest

public void setClosest(IFocus focus)

Description copied from interface: ICamera

Sets the closest of all

Specified by:

setClosest in interface ICamera

Parameters:

focus - The new closest object

getVelocity

public Vector3d getVelocity()

Specified by:

getVelocity in interface ICamera

updateFrustumPlanes

public void updateFrustumPlanes()

Specified by:

updateFrustumPlanes in interface ICamera

setFrustumPlanes

protected void setFrustumPlanes(com.badlogic.gdx.graphics.PerspectiveCamera cam)

getNear

public double getNear()

Specified by:

getNear in interface ICamera

getFar

public double getFar()

Specified by:

getFar in interface ICamera

getProjView

public com.badlogic.gdx.math.Matrix4 getProjView()

Specified by:

getProjView in interface ICamera

getPreviousProjView

public com.badlogic.gdx.math.Matrix4 getPreviousProjView()

Specified by:

getPreviousProjView in interface ICamera

setPreviousProjView

public void setPreviousProjView(com.badlogic.gdx.math.Matrix4 mat)

Specified by:

setPreviousProjView in interface ICamera