lost::Camera Class Reference

A full description of a camera. Enough information to reconstruct the camera matrix and then some. More...

#include <camera.hpp>

Public Member Functions
	Camera (const Camera &)=default
	Camera (decimal focalLength, decimal xCenter, decimal yCenter, int xResolution, int yResolution)
	Camera (decimal focalLength, int xResolution, int yResolution)
Vec2	SpatialToCamera (const Vec3 &) const
	Converts from a 3D point in space to a 2D point on the camera sensor. More...
Vec3	CameraToSpatial (const Vec2 &) const
	Gives a point in 3d space that could correspond to the given vector, using the same coordinate system described for SpatialToCamera. More...
bool	InSensor (const Vec2 &vector) const
	Returns whether a given pixel is actually in the camera's field of view. More...
int	XResolution () const
	Width of the sensor in pixels. More...
int	YResolution () const
	Height of the sensor in pixels. More...
decimal	FocalLength () const
	Focal length in pixels. More...
decimal	Fov () const
	Horizontal field of view in radians. More...
void	SetFocalLength (decimal focalLength)

Detailed Description

A full description of a camera. Enough information to reconstruct the camera matrix and then some.

Definition at line 9 of file camera.hpp.

Constructor & Destructor Documentation

Camera() [1/3]

lost::Camera::Camera ( const Camera &  )

default

Camera() [2/3]

lost::Camera::Camera ( decimal  focalLength, decimal  xCenter, decimal  yCenter, int  xResolution, int  yResolution  )

inline

Parameters

xCenter,yCenter

The "principal point" of the camera. In an ideal camera, just half the resolution, but physical cameras often have a bit of offset.

Definition at line 16 of file camera.hpp.

Camera() [3/3]

lost::Camera::Camera ( decimal  focalLength, int  xResolution, int  yResolution  )

inline

Definition at line 23 of file camera.hpp.

Member Function Documentation

CameraToSpatial()

Vec3 lost::Camera::CameraToSpatial

(

const Vec2 &

vector

)

const

Gives a point in 3d space that could correspond to the given vector, using the same coordinate system described for SpatialToCamera.

Not all vectors returned by this function will necessarily have the same magnitude.

Returns

A vector in 3d space corresponding to the given vector, with x-component equal to 1

Warning

Other functions rely on the fact that returned vectors are placed one unit away (x-component equal to 1). Don't change this behavior!

Definition at line 35 of file camera.cpp.

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FocalLength()

decimal lost::Camera::FocalLength ( ) const

inline

Focal length in pixels.

Definition at line 42 of file camera.hpp.

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Fov()

decimal lost::Camera::Fov

(

)

const

Horizontal field of view in radians.

Definition at line 66 of file camera.cpp.

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InSensor()

bool lost::Camera::InSensor

(

const Vec2 &

vector

)

const

Returns whether a given pixel is actually in the camera's field of view.

Definition at line 51 of file camera.cpp.

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SetFocalLength()

void lost::Camera::SetFocalLength ( decimal  focalLength )

inline

Definition at line 46 of file camera.hpp.

SpatialToCamera()

Vec2 lost::Camera::SpatialToCamera

(

const Vec3 &

vector

)

const

Converts from a 3D point in space to a 2D point on the camera sensor.

Assumes that X is the depth direction and that it points away from the center of the sensor, i.e., any vector (x, 0, 0) will be at (xResolution/2, yResolution/2) on the sensor.

Definition at line 15 of file camera.cpp.

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XResolution()

int lost::Camera::XResolution ( ) const

inline

Width of the sensor in pixels.

Definition at line 38 of file camera.hpp.

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YResolution()

int lost::Camera::YResolution ( ) const

inline

Height of the sensor in pixels.

Definition at line 40 of file camera.hpp.

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

• src/camera.hpp
• src/camera.cpp