sofa::simplegui::Camera Class Reference

#include <Camera.h>

The Camera class implements a simple viewpoint transformation, and its update using the mouse. Currently only one displacement mode is implemented, and it is not extensively tested. More...

Detailed Description

The Camera class implements a simple viewpoint transformation, and its update using the mouse. Currently only one displacement mode is implemented, and it is not extensively tested.

Author

Francois Faure, 2014

Protected Attributes
Transform	transform
	Viewing transform: world wrt camera, i.e. inverse of the camera pose. More...
float	fovy
float	ratio
float	znear
float	zfar
int	tb_ancienX
int	tb_ancienY
int	tb_tournerXY
int	tb_translaterXY
int	tb_bougerZ

Public Member Functions
	Camera ()
void	setlookAt (float eyeX, float eyeY, float eyeZ, float targetX, float targetY, float targetZ, float upX, float upY, float upZ)
void	lookAt ()
	Apply the viewing transform, typically just after glLoadIdentity() in the draw function. More...
void	viewAll (float xmin, float ymin, float zmin, float xmax, float ymax, float zmax)
void	perspective (float fovy, float ratio, float znear, float zfar)
void	setPerspective (float fovy, float ratio, float znear, float zfar)
void	perspective ()
	Apply the projection matrix defined in setPerspective, typically in the reshape function. More...
bool	handleMouseButton (int button, int state, int x, int y)
	Set the camera displacement modes and return true. More...
bool	handleMouseMotion (int x, int y)
	Displace the camera based on the mouse motion and return true. More...
Vec3	eye () const
	Center of the camera in world coordinates. More...
const Transform &	getTransform () const
	Viewing matrix. More...

Attribute details

fovy

float sofa::simplegui::Camera::fovy

protected

ratio

float sofa::simplegui::Camera::ratio

protected

tb_ancienX

int sofa::simplegui::Camera::tb_ancienX

protected

tb_ancienY

int sofa::simplegui::Camera::tb_ancienY

protected

tb_bougerZ

int sofa::simplegui::Camera::tb_bougerZ

protected

tb_tournerXY

int sofa::simplegui::Camera::tb_tournerXY

protected

tb_translaterXY

int sofa::simplegui::Camera::tb_translaterXY

protected

transform

Transform sofa::simplegui::Camera::transform

protected

Viewing transform: world wrt camera, i.e. inverse of the camera pose.

zfar

float sofa::simplegui::Camera::zfar

protected

znear

float sofa::simplegui::Camera::znear

protected

Constructor details

Camera()

sofa::simplegui::Camera::Camera

(

)

Function details

eye()

Camera::Vec3 sofa::simplegui::Camera::eye

(

)

const

Center of the camera in world coordinates.

getTransform()

const Transform& sofa::simplegui::Camera::getTransform ( ) const

inline

Viewing matrix.

handleMouseButton()

bool sofa::simplegui::Camera::handleMouseButton	(	int	button,
		int	state,
		int	x,
		int	y
	)

Set the camera displacement modes and return true.

handleMouseMotion()

bool sofa::simplegui::Camera::handleMouseMotion	(	int	x,
		int	y
	)

Displace the camera based on the mouse motion and return true.

lookAt()

void sofa::simplegui::Camera::lookAt

(

)

Apply the viewing transform, typically just after glLoadIdentity() in the draw function.

perspective() [1/2]

void sofa::simplegui::Camera::perspective

(

)

Apply the projection matrix defined in setPerspective, typically in the reshape function.

perspective() [2/2]

void sofa::simplegui::Camera::perspective	(	float	fovy,
		float	ratio,
		float	znear,
		float	zfar
	)

Equivalent of gluPerspective. Alternatively, the definition and the application of the projection matrix can be done separately using other functions.

See also

void setPerspective( float fovy, float ratio, float znear, float zfar )

void perspective()

setlookAt()

void sofa::simplegui::Camera::setlookAt	(	float	eyeX,
		float	eyeY,
		float	eyeZ,
		float	targetX,
		float	targetY,
		float	targetZ,
		float	upX,
		float	upY,
		float	upZ
	)

Set the view point. Parameters correspond to gluLookAt. Note that this just sets the parameters. The actual viewing transform is applied in void lookAt() .

setPerspective()

void sofa::simplegui::Camera::setPerspective	(	float	fovy,
		float	ratio,
		float	znear,
		float	zfar
	)

Set the projection matrix, without applying it. Parameters correspond to gluPerspective. Note that this just sets the parameters. The actual projection transform is applied in void perspective() .

viewAll()

void sofa::simplegui::Camera::viewAll	(	float	xmin,
		float	ymin,
		float	zmin,
		float	xmax,
		float	ymax,
		float	zmax
	)

Enum details

anonymous enum

anonymous enum

Enumerator
ButtonLeft
ButtonMiddle
ButtonRight

anonymous enum

anonymous enum

Enumerator
ButtonDown
ButtonUp