SourceScene draws a video stream and configures camera parameters. More...

#include <sourcescene.h>

Inheritance diagram for cavapa_gui::SourceScene:

Public Slots
void	setCameraXRot (float value)
	Sets the camera rotation around X axis. More...

void	setCameraYRot (float value)
	Sets the camera rotation around Y axis. More...

void	setCameraZRot (float value)
	Sets the camera rotation around Z axis. More...

void	setCameraHeight (float value)
	Sets the camera height. More...

void	setCameraFov (float value)
	Sets the camera field of view. More...

void	setDrawGridEnabled (bool enabled)
	Sets if the grid should be drawn. More...

void	setDrawCalibrationPointsEnabled (bool enabled)
	Sets if the calibration points should be drawn. More...

Public Member Functions
	SourceScene (QWidget *parent=0)
	Constructs a new SourceScene having the specified parent widget. More...

float	getCameraXRot ()
	Returns the camera rotation around X axis. More...

float	getCameraYRot ()
	Returns the camera rotation around Y axis. More...

float	getCameraZRot ()
	Returns the camera rotation around Z axis. More...

float	getCameraHeight ()
	Returns the camera height. More...

float	getCameraFov ()
	Sets the field of view of the camera. More...

QVector3D	getCameraLookDirection ()
	Gets the camera look direction. More...

QVector3D	getCameraPosition ()
	Gets the camera position. More...

cavapa::camera	getCameraSettings ()
	Gets the camera settings. More...

void	setCameraSettings (cavapa::camera settings)
	Sets camera settings. More...

CalibrationPoints	getCalibrationPoints ()
	Gets the calibration points. More...

void	addCalibrationlPoint (QPointF point)
	Adds a new calibration point. More...

void	setAddCalibrationPointsEnabled (bool enabled)
	Sets if adding calibration points should be possible. More...

void	updateImage (const cv::Mat &image)
	Updates the background image. More...

Protected Member Functions
void	mouseReleaseEvent (QMouseEvent *e)
	Reacts to a mouse release event: If right mouse button was released, display a context menu that has the actions for managing the calibration points. More...

void	mousePressEvent (QMouseEvent *e)
	Reacts to a mouse press event by highlighting the closest calibration point. More...

void	timerEvent (QTimerEvent *e)
	The timer event. More...

void	initializeGL ()
	Initializes the OpenGL scene.

void	resizeGL (int w, int h)
	Resizes the GL viewport. More...

void	drawBackgroundImage ()
	Draws the background image.

void	drawGrid ()
	Draws the grid.

void	drawCalibrationPoints (QPainter &painter)
	Draws the calibration points.

void	paintGL ()
	Paints the GL scene.

void	initShaders ()
	Initializes the shaders.

void	setGlViewport ()
	Sets the GL viewport.

void	calculateViewPort ()
	Calculates the viewport maintaining the video aspect ratio.

QPointF	getRelativeVideoPosition (QPoint widgetPoint)
	Calculates the relative position of a point in the video. More...

Detailed Description

SourceScene draws a video stream and configures camera parameters.

Draws an image that can be changed to display a video. A grid that represents how the ground would look with the current camera parameters is drawn on top of the image. The camera parameters can be modified and retrieved.

It's also possible to add calibration points to the widget through the right click menu. The calibration points are ment for a situation where there are multiple cameras filming the same situation from different angles. The calibration points can be used to mark where the same spot exists in both cameras. One calibration point can be highlighted by left clicking to help differentiate points that might be close to each other.

Author: Oskari Leppäaho

Constructor & Destructor Documentation

cavapa_gui::SourceScene::SourceScene ( QWidget * parent = 0 )

explicit

Constructs a new SourceScene having the specified parent widget.

Parameters

parent The parent widget.

Member Function Documentation

void cavapa_gui::SourceScene::addCalibrationlPoint ( QPointF point )

inline

Adds a new calibration point.

Parameters

point The new point. The point should be in relative coordinates, i.e. x and y coordinates range from 0 to 1.

CalibrationPoints cavapa_gui::SourceScene::getCalibrationPoints ( )

inline

Gets the calibration points.

Returns: The the calibration points.

float cavapa_gui::SourceScene::getCameraFov ( )

inline

Sets the field of view of the camera.

Returns: The field of view of the camera.

float cavapa_gui::SourceScene::getCameraHeight ( )

inline

Returns the camera height.

Returns: The camera height.

QVector3D cavapa_gui::SourceScene::getCameraLookDirection ( )

Gets the camera look direction.

Returns: A unit vector that defines the direction the camera is pointing to.

QVector3D cavapa_gui::SourceScene::getCameraPosition ( )

Gets the camera position.

Returns: The camera position as 3D vector.

cavapa::camera cavapa_gui::SourceScene::getCameraSettings ( )

Gets the camera settings.

Returns: The camera settings.

float cavapa_gui::SourceScene::getCameraXRot ( )

inline

Returns the camera rotation around X axis.

Returns: The camera X rotation.

float cavapa_gui::SourceScene::getCameraYRot ( )

inline

Returns the camera rotation around Y axis.

Returns: The camera Y rotation.

float cavapa_gui::SourceScene::getCameraZRot ( )

inline

Returns the camera rotation around Z axis.

Returns: The camera Z rotation.

QPointF cavapa_gui::SourceScene::getRelativeVideoPosition ( QPoint widgetPoint )

inlineprotected

Calculates the relative position of a point in the video.

Parameters

widgetPoint The point which position to calculate.

Returns: A corresponding point with coordinates in range from 0 to 1.

void cavapa_gui::SourceScene::mousePressEvent ( QMouseEvent * e )

protected

Reacts to a mouse press event by highlighting the closest calibration point.

Parameters

e	The QMouseEvent.

void cavapa_gui::SourceScene::mouseReleaseEvent ( QMouseEvent * e )

protected

Reacts to a mouse release event: If right mouse button was released, display a context menu that has the actions for managing the calibration points.

Parameters

*e	The QMouseEvent.

void cavapa_gui::SourceScene::resizeGL	(	int	w,
		int	h
	)

protected

Resizes the GL viewport.

Parameters

w	The new viewport width.
h	The new viewport height.

void cavapa_gui::SourceScene::setAddCalibrationPointsEnabled ( bool enabled )

inline

Sets if adding calibration points should be possible.

Parameters

enabled Specifies if adding calibration points should be possible.

void cavapa_gui::SourceScene::setCameraFov ( float value )

slot

Sets the camera field of view.

Parameters

value The new field of view.

void cavapa_gui::SourceScene::setCameraHeight ( float value )

slot

Sets the camera height.

Parameters

value The new camera height.

void cavapa_gui::SourceScene::setCameraSettings ( cavapa::camera settings )

Sets camera settings.

Parameters

settings The new camera settings.

void cavapa_gui::SourceScene::setCameraXRot ( float value )

slot

Sets the camera rotation around X axis.

Parameters

value The new camera X rotation.

void cavapa_gui::SourceScene::setCameraYRot ( float value )

slot

Sets the camera rotation around Y axis.

Parameters

value The new camera Y rotation.

void cavapa_gui::SourceScene::setCameraZRot ( float value )

slot

Sets the camera rotation around Z axis.

Parameters

value The new camera Z rotation.

void cavapa_gui::SourceScene::setDrawCalibrationPointsEnabled ( bool enabled )

inlineslot

Sets if the calibration points should be drawn.

Parameters

enabled Specifies whether the calibration points should be drawn or not.

void cavapa_gui::SourceScene::setDrawGridEnabled ( bool enabled )

inlineslot

Sets if the grid should be drawn.

Parameters

enabled Specifies whether the grid should be drawn or not.

void cavapa_gui::SourceScene::timerEvent ( QTimerEvent * e )

protected

The timer event.

Handles updating the OpenGL widget.

Parameters

*e	The QTimerEvent.

void cavapa_gui::SourceScene::updateImage ( const cv::Mat & image )

Updates the background image.

Use this to update the video frames.

Parameters

image The new background image.

Remarks: This assumes that the image format is RGB888.

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

gui/sourcescene.h
gui/sourcescene.cpp

Public Slots

Public Member Functions

Protected Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation