RealSpace::Camera Class Reference

Inheritance diagram for RealSpace::Camera:

Collaboration diagram for RealSpace::Camera:

Classes
struct	Position

Signals
void	updated (Camera const &)

Public Member Functions
	Camera ()
const Position &	getPos () const
const Position &	getPos3DAxes () const
void	lookAt (const Position &)
void	lookAt3DAxes (const Position &)
void	set ()

Private Member Functions
void	endTransform (bool keep)
void	setAspectRatio (float)
void	turnBy (QQuaternion const &)
void	zoomBy (float)

Private Attributes
QQuaternion	addRot
float	farPlane
Vector3D	lightPos1
Vector3D	lightPosRotated1
QMatrix4x4	matModel
QMatrix4x4	matModel3DAxes
QMatrix4x4	matProj
float	nearPlane
Position	pos
Position	pos3DAxes
float	vertAngle
float	zoom

Friends
class	Canvas
class	Program

Detailed Description

Definition at line 28 of file camera.h.

Constructor & Destructor Documentation

Camera()

RealSpace::Camera::Camera

(

)

Definition at line 23 of file camera.cpp.

    : pos(Vector3D::_z, Vector3D::_0, Vector3D::_x)
    , pos3DAxes(Vector3D::_z, Vector3D::_0, Vector3D::_x)
    , zoom(1)
    , vertAngle(60)
    , nearPlane(1)
    , farPlane(10000)
    , lightPos1(LIGHT1)
    , lightPosRotated1(lightPos1)
{
    setAspectRatio(1);
}

References setAspectRatio().

Here is the call graph for this function:

Member Function Documentation

endTransform()

void RealSpace::Camera::endTransform ( bool  keep )

private

Definition at line 104 of file camera.cpp.

{
    if (keep) {
        pos.rot = (pos.rot * addRot).normalized();
        pos.eye = pos.eye * zoom; // TODO limit
 
        pos3DAxes.rot = (pos3DAxes.rot * addRot).normalized(); // no zooming for 3D axes
    }
    addRot = {};
    zoom = 1;
    set();
}

References addRot, RealSpace::Camera::Position::eye, pos, pos3DAxes, RealSpace::Camera::Position::rot, set(), and zoom.

Referenced by RealSpace::Canvas::defaultView(), RealSpace::Canvas::horizontalCameraTurn(), RealSpace::Canvas::mouseReleaseEvent(), RealSpace::Canvas::sideView(), RealSpace::Canvas::topView(), RealSpace::Canvas::verticalCameraTurn(), and RealSpace::Canvas::wheelEvent().

Here is the call graph for this function:

getPos()

const Position& RealSpace::Camera::getPos ( ) const

inline

Definition at line 51 of file camera.h.

{ return pos; }

References pos.

Referenced by RealSpace::Canvas::horizontalCameraTurn(), RealSpace::Program::set(), RealSpaceCanvas::updateScene(), and RealSpace::Canvas::verticalCameraTurn().

getPos3DAxes()

const Position& RealSpace::Camera::getPos3DAxes ( ) const

inline

Definition at line 52 of file camera.h.

{ return pos3DAxes; }

References pos3DAxes.

Referenced by RealSpace::Canvas::horizontalCameraTurn(), and RealSpace::Canvas::verticalCameraTurn().

lookAt()

void RealSpace::Camera::lookAt

(

const Position &

pos_

)

Definition at line 50 of file camera.cpp.

{
    pos = pos_;
    //    lightPos = pos.eye;
    set();
}

References pos, and set().

Referenced by RealSpace::Canvas::defaultView(), RealSpace::Canvas::horizontalCameraTurn(), RealSpace::Canvas::setCamera(), RealSpace::Canvas::sideView(), RealSpace::Canvas::topView(), and RealSpace::Canvas::verticalCameraTurn().

Here is the call graph for this function:

lookAt3DAxes()

void RealSpace::Camera::lookAt3DAxes

(

const Position &

pos3DAxes_

)

Definition at line 57 of file camera.cpp.

{
    pos3DAxes = pos3DAxes_;
    set();
}

References pos3DAxes, and set().

Referenced by RealSpace::Canvas::defaultView(), RealSpace::Canvas::horizontalCameraTurn(), RealSpace::Canvas::sideView(), RealSpace::Canvas::topView(), and RealSpace::Canvas::verticalCameraTurn().

Here is the call graph for this function:

set()

void RealSpace::Camera::set

(

)

Definition at line 64 of file camera.cpp.

{
    // For 3D object
    matModel.setToIdentity();
    matModel.lookAt((pos.eye - pos.ctr) * zoom + pos.ctr, pos.ctr, pos.up);
    QQuaternion rt(pos.rot * addRot);
    matModel.translate(+pos.ctr);
    matModel.rotate(rt);
    matModel.translate(-pos.ctr);
 
    // For 3D axes
    matModel3DAxes.setToIdentity(); //
    matModel3DAxes.lookAt((pos3DAxes.eye - pos3DAxes.ctr) + pos3DAxes.ctr, pos3DAxes.ctr,
                          pos3DAxes.up); //
    QQuaternion rt3DAxes(pos3DAxes.rot * addRot);
    matModel3DAxes.rotate(rt3DAxes);
 
    lightPosRotated1 = rt.inverted().rotatedVector(lightPos1);
 
    emit updated(*this);
}

References addRot, RealSpace::Camera::Position::ctr, RealSpace::Camera::Position::eye, lightPos1, lightPosRotated1, matModel, matModel3DAxes, pos, pos3DAxes, RealSpace::Camera::Position::rot, RealSpace::Camera::Position::up, updated(), and zoom.

Referenced by endTransform(), lookAt(), lookAt3DAxes(), RealSpace::Canvas::setModel(), turnBy(), and zoomBy().

setAspectRatio()

void RealSpace::Camera::setAspectRatio ( float  ratio )

private

Definition at line 86 of file camera.cpp.

{
    matProj.setToIdentity();
    matProj.perspective(vertAngle, ratio, nearPlane, farPlane);
}

References farPlane, matProj, nearPlane, and vertAngle.

Referenced by Camera(), and RealSpace::Canvas::setCamera().

turnBy()

void RealSpace::Camera::turnBy ( QQuaternion const &  rot )

private

Definition at line 92 of file camera.cpp.

{
    addRot = rot;
    set();
}

References addRot, and set().

Here is the call graph for this function:

updated

void RealSpace::Camera::updated ( Camera const &  )

signal

Referenced by set().

zoomBy()

void RealSpace::Camera::zoomBy ( float  zoom_ )

private

Definition at line 98 of file camera.cpp.

{
    zoom = zoom_;
    set();
}

References set(), and zoom.

Referenced by RealSpace::Canvas::mouseMoveEvent(), and RealSpace::Canvas::wheelEvent().

Here is the call graph for this function:

Friends And Related Function Documentation

Canvas

friend class Canvas

friend

Definition at line 30 of file camera.h.

Program

friend class Program

friend

Definition at line 31 of file camera.h.

Member Data Documentation

addRot

QQuaternion RealSpace::Camera::addRot

private

Definition at line 78 of file camera.h.

Referenced by endTransform(), set(), and turnBy().

farPlane

float RealSpace::Camera::farPlane

private

Definition at line 72 of file camera.h.

Referenced by setAspectRatio().

lightPos1

Vector3D RealSpace::Camera::lightPos1

private

Definition at line 75 of file camera.h.

Referenced by set().

lightPosRotated1

Vector3D RealSpace::Camera::lightPosRotated1

private

Definition at line 75 of file camera.h.

Referenced by set(), and RealSpace::Program::set().

matModel

QMatrix4x4 RealSpace::Camera::matModel

private

Definition at line 79 of file camera.h.

Referenced by RealSpace::Canvas::mousePressEvent(), set(), and RealSpace::Program::set().

matModel3DAxes

QMatrix4x4 RealSpace::Camera::matModel3DAxes

private

Definition at line 80 of file camera.h.

Referenced by RealSpace::Canvas::paintGL(), and set().

matProj

QMatrix4x4 RealSpace::Camera::matProj

private

Definition at line 79 of file camera.h.

Referenced by RealSpace::Canvas::mousePressEvent(), RealSpace::Program::set(), and setAspectRatio().

nearPlane

float RealSpace::Camera::nearPlane

private

Definition at line 72 of file camera.h.

Referenced by setAspectRatio().

pos

Position RealSpace::Camera::pos

private

Definition at line 68 of file camera.h.

Referenced by endTransform(), getPos(), lookAt(), and set().

pos3DAxes

Position RealSpace::Camera::pos3DAxes

private

Definition at line 69 of file camera.h.

Referenced by endTransform(), getPos3DAxes(), lookAt3DAxes(), and set().

vertAngle

float RealSpace::Camera::vertAngle

private

Definition at line 72 of file camera.h.

Referenced by setAspectRatio().

zoom

float RealSpace::Camera::zoom

private

Definition at line 71 of file camera.h.

Referenced by endTransform(), set(), and zoomBy().

---

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

• /home/www/ba/GUI/ba3d/view/camera.h
• /home/www/ba/GUI/ba3d/view/camera.cpp