Eagle::Head Class Reference

Properties of a camera floating around in space, or, alternatively, an eagle's eye. More...

#include <elementary/eagle/Camera.hpp>

Public Member Functions
bool	doCubicInterpolation () const
	Indicate whether the succeeding interval in a CameraPath shall be interpolated with a cubic polynomial or linear.
vector	getLookAt () const
	Get the point which is currently looked at.
const vector &	getPosition () const
	Where is the camera?
vector	getRightDir () const
	Get the direction towards right of the viewer.
vector	getUpDir () const
	Get the upwards direction.
double	getViewAngle () const
	What is the current horizontal view angle of the camera?
vector	getViewdir () const
	Get the view direction.
void	look_right (double radians)
	Roll the camera to look right a little bit.
void	look_up (double radians)
	Roll the camera to look up a little bit.
void	move_forward (double dist)
	Move the camera forward a little bit.
void	move_right (double dist)
	Move (shift) the camera right a little bit.
void	move_up (double dist)
	Move (raise) the camera up little bit.
void	setInterpolationType (bool doCubic)
	Specify whether the succeeding interval in a CameraPath shall be interpolated with a cubic polynomial or linear.
void	setPosition (const vector &p)
	Set the camera to a certain position.
void	setViewAngle (double va)
	Specify the current horizontal view angle of the camera.

Detailed Description

Properties of a camera floating around in space, or, alternatively, an eagle's eye.

Member Function Documentation

getLookAt()

vector Eagle::Head::getLookAt ( ) const

inline

Get the point which is currently looked at.

This point resides in the focalDistance from the Camera. During stereographic rendering, it is kept at the same pixel.

getViewAngle()

double Eagle::Head::getViewAngle ( ) const

inline

What is the current horizontal view angle of the camera?

Returns

View angle in radians.

look_right()

void Eagle::Head::look_right ( double  radians )

inline

Roll the camera to look right a little bit.

Parameters

radians

How many radians are "a little bit". The camera position is unchanged.

look_up()

void Eagle::Head::look_up ( double  radians )

inline

Roll the camera to look up a little bit.

Parameters

radians

How many radians are "a little bit". The camera position is unchanged.

move_forward()

void Eagle::Head::move_forward ( double  dist )

inline

Move the camera forward a little bit.

Parameters

How	much is a little bit. Note that the focal distance is kept constant, i.e. we do not move closer to the getLookAt() point but keep our eyes constant when moving forward.

move_right()

void Eagle::Head::move_right ( double  dist )

inline

Move (shift) the camera right a little bit.

Parameters

How	much is a little bit. See getRightDir() on how "right" is defined.

move_up()

void Eagle::Head::move_up ( double  dist )

inline

Move (raise) the camera up little bit.

Parameters

How	much is a little bit. See getUpDir() on how "up" is defined.

setViewAngle()

void Eagle::Head::setViewAngle ( double  va )

inline

Specify the current horizontal view angle of the camera.

Parameters

va	View angle in radians.