#include <visp3/core/vpRect.h>

Public Member Functions
	vpRect ()

	vpRect (double left, double top, double width, double height)

	vpRect (const vpImagePoint &topLeft, double width, double height)

	vpRect (const vpImagePoint &topLeft, const vpImagePoint &bottomRight)

	vpRect (const vpRect &r)

	vpRect (const std::vector< vpImagePoint > &ip)

vpRect &	operator= (const vpRect &r)

double	getBottom () const

vpImagePoint	getBottomRight () const

void	getCenter (double &x, double &y) const

vpImagePoint	getCenter () const

double	getHeight () const

double	getLeft () const

double	getRight () const

double	getSize () const

double	getTop () const

vpImagePoint	getTopLeft () const

double	getWidth () const

bool	isInside (const vpImagePoint &ip) const

bool	operator== (const vpRect &r) const

bool	operator!= (const vpRect &r) const

vpRect &	operator&= (const vpRect &r)

vpRect	operator& (const vpRect &r) const

void	set (double left, double top, double width, double height)

void	set (const vpImagePoint &topLeft, double width, double height)

void	set (const vpImagePoint &topLeft, const vpImagePoint &bottomRight)

void	set (const vpRect &r)

void	set (const std::vector< vpImagePoint > &ip)

void	setBottom (double pos)

void	setBottomRight (const vpImagePoint &bottomRight)

void	setHeight (double h)

void	setLeft (double pos)

void	setRect (double l, double t, double w, double h)

void	setRight (double pos)

void	setTop (double pos)

void	setTopLeft (const vpImagePoint &topLeft)

void	setWidth (double w)

void	moveCenter (double x, double y)

void	moveCenter (const vpImagePoint &center)

Friends
VISP_EXPORT bool	inRectangle (const vpImagePoint &ip, const vpRect &rect)

VISP_EXPORT std::ostream &	operator<< (std::ostream &os, const vpRect &r)

Detailed Description

Defines a rectangle in the plane.

A rectangle is internally represented as an upper-left corner and a width and height, but it is normally expressed as an upper-left corner and bottom-right corner.

Note that the size (width and height) of a rectangle might be different from what you are used to. If the top-left corner and the bottom-right corner are the same, the height and the width of the rectangle will both be 1.

Generally, width = right - left + 1 and height = bottom - top +

We designed it this way to make it correspond to rectangular spaces used by drawing functions in which the width and height denote a number of pixels. For example, drawing a rectangle with width and height 1 draws a single pixel.

The default coordinate system has origin (0, 0) in the top-left corner. The positive direction of the y axis is down, and the positive x axis is from left to right.

A vpRect can be constructed with a set of left, top, width and height double. After creation the dimensions can be changed, e.g. with setLeft(), setRight(), setTop() and setBottom(), or by setting sizes, e.g. setWidth(), setHeight()

Examples:: fernClassifier.cpp, planarObjectDetector.cpp, testAprilTag.cpp, testCrop.cpp, testCropAdvanced.cpp, testDisplayRoi.cpp, testDisplays.cpp, testGenericTracker.cpp, testGenericTrackerDepth.cpp, testImageAddSub.cpp, testImageNormalizedCorrelation.cpp, testImageTemplateMatching.cpp, tutorial-apriltag-detector.cpp, tutorial-barcode-detector-live.cpp, tutorial-barcode-detector.cpp, tutorial-face-detector-live-threaded.cpp, tutorial-face-detector-live.cpp, and tutorial-face-detector.cpp.

Definition at line 78 of file vpRect.h.

Constructor & Destructor Documentation

vpRect::vpRect ( )

Constructs a default rectangle with the top, left corner set to (0,0) and width and height set to 1.

Definition at line 53 of file vpRect.cpp.

Referenced by operator&=().

vpRect::vpRect	(	double	l,
		double	t,
		double	w,
		double	h
	)

Constructs a rectangle with the top, left corner and width and height.

Parameters

l	: coordinate of the top/left corner along the horizontal axis.
t	: coordinate of the top/left corner along the vertical axis.
w	: rectangle width.
h	: rectangle height.

Definition at line 64 of file vpRect.cpp.

vpRect::vpRect	(	const vpImagePoint &	topLeft,
		double	w,
		double	h
	)

Constructs a rectangle with topLeft the top-left corner location and width and height the rectangle size.

Parameters

topLeft	: coordinates of the top/left corner.
w	: rectangle width.
h	: rectangle height.

Definition at line 74 of file vpRect.cpp.

vpRect::vpRect	(	const vpImagePoint &	topLeft,
		const vpImagePoint &	bottomRight
	)

Constructs a rectangle with topLeft the top-left corner location and bottomRight the bottom-right corner.

Definition at line 83 of file vpRect.cpp.

References vpImagePoint::get_u(), vpImagePoint::get_v(), setBottom(), and setRight().

vpRect::vpRect ( const vpRect & r )

Constructs a rectangle that is a copy of r.

Definition at line 96 of file vpRect.cpp.

vpRect::vpRect ( const std::vector< vpImagePoint > & ip )

explicit

Create a rectangle as the bounding box of a vector of image points.

Parameters

ip	: Vector of image points. At least 1 points is mandatory, otherwise an exception is thrown.

Definition at line 116 of file vpRect.cpp.

Member Function Documentation

double vpRect::getBottom ( ) const

inline

Returns the bottom coordinate of the rectangle.

See also: getRight()

Definition at line 94 of file vpRect.h.

Referenced by vpMbtFaceDepthDense::computeDesiredFeatures(), vpMbtFaceDepthNormal::computeDesiredFeatures(), vpKeyPoint::detect(), vpDisplayOpenCV::displayRectangle(), vpDot2::getFreemanChain(), vpImageSimulator::getImage(), vpImagePoint::inRectangle(), isInside(), and vpDot2::searchDotsInArea().

vpImagePoint vpRect::getBottomRight ( ) const

inline

Returns the bottom-right coordinate of the rectangle.

See also: getTopLeft(), getBottom(), getRight()

Definition at line 99 of file vpRect.h.

References vpImagePoint::set_u(), and vpImagePoint::set_v().

void vpRect::getCenter	(	double &	x,
		double &	y
	)		const

inline

Returns the center point of the rectangle. The center point coordinates are (x, y)

The default coordinate system has origin (0, 0) in the top-left corner. The positive direction of the y axis is down, and the positive x axis is from left to right.

See also: moveCenter()

Definition at line 118 of file vpRect.h.

Referenced by vpRectOriented::operator=(), and vpRectOriented::vpRectOriented().

vpImagePoint vpRect::getCenter ( ) const

inline

Returns the center point of the rectangle. The center point coordinates are (x, y)

The default coordinate system has origin (0, 0) in the top-left corner. The positive direction of the y axis is down, and the positive x axis is from left to right.

See also: moveCenter()

Definition at line 134 of file vpRect.h.

References vpImagePoint::set_u(), and vpImagePoint::set_v().

double vpRect::getHeight ( ) const

inline

Returns the height of the rectangle. The height includes both the top and bottom edges, i.e. height = bottom - top + 1.

See also: getWidth()

Definition at line 149 of file vpRect.h.

Referenced by vpV4l2Grabber::acquire(), vpMbtFaceDepthDense::computeDesiredFeatures(), vpMbtFaceDepthNormal::computeDesiredFeatures(), vpImageTools::crop(), vpKeyPoint::detect(), vpDisplayWin32::displayRectangle(), vpDisplayGTK::displayRectangle(), vpDisplayX::displayRectangle(), vpRectOriented::operator=(), and vpRectOriented::vpRectOriented().

double vpRect::getLeft ( ) const

inline

Returns the left coordinate of the rectangle.

See also: getTopLeft(), getRight()

Examples:: testAprilTag.cpp, tutorial-apriltag-detector.cpp, tutorial-barcode-detector-live.cpp, tutorial-barcode-detector.cpp, tutorial-face-detector-live.cpp, and tutorial-face-detector.cpp.

Definition at line 156 of file vpRect.h.

Referenced by vpV4l2Grabber::acquire(), vpMbtFaceDepthDense::computeDesiredFeatures(), vpMbtFaceDepthNormal::computeDesiredFeatures(), vpImageTools::crop(), vpKeyPoint::detect(), vpDisplayWin32::displayRectangle(), vpDisplayGTK::displayRectangle(), vpDisplayX::displayRectangle(), vpDisplayOpenCV::displayRectangle(), vpDot2::getFreemanChain(), vpImageSimulator::getImage(), vpImagePoint::inRectangle(), isInside(), and vpDot2::searchDotsInArea().

double vpRect::getRight ( ) const

inline

Returns the right coordinate of the rectangle.

See also: getLeft()

Definition at line 162 of file vpRect.h.

Referenced by vpMbtFaceDepthDense::computeDesiredFeatures(), vpMbtFaceDepthNormal::computeDesiredFeatures(), vpKeyPoint::detect(), vpDisplayOpenCV::displayRectangle(), vpDot2::getFreemanChain(), vpImageSimulator::getImage(), vpImagePoint::inRectangle(), isInside(), and vpDot2::searchDotsInArea().

double vpRect::getSize ( ) const

inline

Returns the size of the rectangle.

See also: getWidth(), getHeight()

Definition at line 168 of file vpRect.h.

double vpRect::getTop ( ) const

inline

Returns the top coordinate of the rectangle.

See also: getTopLeft(), getBottom()

Examples:: testAprilTag.cpp, tutorial-apriltag-detector.cpp, tutorial-barcode-detector-live.cpp, tutorial-barcode-detector.cpp, tutorial-face-detector-live.cpp, and tutorial-face-detector.cpp.

Definition at line 175 of file vpRect.h.

Referenced by vpV4l2Grabber::acquire(), vpMbtFaceDepthDense::computeDesiredFeatures(), vpMbtFaceDepthNormal::computeDesiredFeatures(), vpImageTools::crop(), vpKeyPoint::detect(), vpDisplayWin32::displayRectangle(), vpDisplayGTK::displayRectangle(), vpDisplayX::displayRectangle(), vpDisplayOpenCV::displayRectangle(), vpDot2::getFreemanChain(), vpImageSimulator::getImage(), vpImagePoint::inRectangle(), isInside(), and vpDot2::searchDotsInArea().

vpImagePoint vpRect::getTopLeft ( ) const

inline

Returns the top-left position of the rectangle.

See also: getBottomRight(), getTop(), getLeft()

Examples:: testImageNormalizedCorrelation.cpp.

Definition at line 182 of file vpRect.h.

References vpImagePoint::set_u(), and vpImagePoint::set_v().

double vpRect::getWidth ( ) const

inline

Returns the width of the rectangle. The width includes both the left and right edges, i.e. width = right - left + 1.

See also: getHeight()

Definition at line 197 of file vpRect.h.

Referenced by vpV4l2Grabber::acquire(), vpMbtFaceDepthDense::computeDesiredFeatures(), vpMbtFaceDepthNormal::computeDesiredFeatures(), vpImageTools::crop(), vpKeyPoint::detect(), vpDisplayWin32::displayRectangle(), vpDisplayGTK::displayRectangle(), vpDisplayX::displayRectangle(), vpRectOriented::operator=(), and vpRectOriented::vpRectOriented().

bool vpRect::isInside ( const vpImagePoint & ip ) const

Returns true if the point belongs to the rectangle.

Check if an image point belongs to the rectangle.

Parameters

ip	: the image point.

Returns: Returns true if the point belongs to the rectangle.

Definition at line 125 of file vpRect.cpp.

References vpImagePoint::get_i(), vpImagePoint::get_j(), getBottom(), getLeft(), getRight(), and getTop().

void vpRect::moveCenter	(	double	x,
		double	y
	)

inline

Sets the center point of the rectangle to (x, y), leaving the size unchanged.

See also: getCenter()

Definition at line 325 of file vpRect.h.

void vpRect::moveCenter ( const vpImagePoint & center )

inline

Center the rectangle to the image point given as parameter, leaving the size unchanged.

See also: getCenter()

Definition at line 337 of file vpRect.h.

References vpImagePoint::get_u(), and vpImagePoint::get_v().

bool vpRect::operator!= ( const vpRect & r ) const

Operator to compare two rectangles.

Returns: true if both objects differ, false otherwise.

Definition at line 235 of file vpRect.cpp.

vpRect vpRect::operator& ( const vpRect & r ) const

Intersection operator.

Returns: Intersection rectangle or null rectangle if the two rectangles do not intersect.

Definition at line 276 of file vpRect.cpp.

vpRect & vpRect::operator&= ( const vpRect & r )

Intersection operator.

Returns: Intersection rectangle or null rectangle if the two rectangles do not intersect.

Definition at line 255 of file vpRect.cpp.

References vpRect().

vpRect & vpRect::operator= ( const vpRect & r )

Assign r to this rectangle and return a reference to this rectangle.

Definition at line 102 of file vpRect.cpp.

bool vpRect::operator== ( const vpRect & r ) const

Operator to compare two rectangles.

Returns: true if both objects are similar, false otherwise.

Definition at line 221 of file vpRect.cpp.

void vpRect::set	(	double	l,
		double	t,
		double	w,
		double	h
	)

Set the rectangle with the top, left corner and width and height.

Parameters

l	: coordinate of the top/left corner along the horizontal axis.
t	: coordinate of the top/left corner along the vertical axis.
w	: rectangle width.
h	: rectangle height.

Definition at line 139 of file vpRect.cpp.

void vpRect::set	(	const vpImagePoint &	topLeft,
		double	w,
		double	h
	)

Set the rectangle with topLeft the top-left corner location and width and height the rectangle size.

Parameters

topLeft	: coordinates of the top-left corner.
w	: rectangle width.
h	: rectangle height.

Definition at line 155 of file vpRect.cpp.

References vpImagePoint::get_u(), and vpImagePoint::get_v().

void vpRect::set	(	const vpImagePoint &	topLeft,
		const vpImagePoint &	bottomRight
	)

Set the rectangle with topLeft the top-left corner location and bottomRight the bottom-right corner.

Parameters

topLeft	: coordinates of the top-left corner.
bottomRight	: coordinates of the bottom-right corner.

Definition at line 203 of file vpRect.cpp.

References vpImagePoint::get_u(), vpImagePoint::get_v(), setBottom(), and setRight().

void vpRect::set ( const vpRect & r )

Set the rectangle from r.

Definition at line 215 of file vpRect.cpp.

void vpRect::set ( const std::vector< vpImagePoint > & ip )

Set the rectangle as the bounding box of a vector of image points.

Parameters

ip	: Vector of image points. At least 1 points is mandatory, otherwise an exception is thrown.

Definition at line 168 of file vpRect.cpp.

References vpException::dimensionError, setBottom(), setLeft(), setRight(), and setTop().

void vpRect::setBottom ( double pos )

inline

Sets the bottom edge position of the rectangle to pos. May change the height of the rectangle, but will never change the top edge position the rectangle.

See also: setTop()

Definition at line 224 of file vpRect.h.

Referenced by vpMbtFaceDepthDense::computeDesiredFeatures(), vpMbtFaceDepthNormal::computeDesiredFeatures(), vpImageSimulator::init(), set(), and vpRect().

void vpRect::setBottomRight ( const vpImagePoint & bottomRight )

inline

Sets the bottom-right position of the rectangle. Will never change the top-left position the rectangle.

See also: setTopLeft()

Definition at line 232 of file vpRect.h.

References vpImagePoint::get_u(), and vpImagePoint::get_v().

Referenced by vpTemplateTrackerZone::getBoundingBox(), and vpPolygon::updateBoundingBox().

void vpRect::setHeight ( double h )

inline

Sets the height of the rectangle to h. The top edge is not moved, but the bottom edge may be moved.

See also: setWidth()

Examples:: testCrop.cpp.

Definition at line 244 of file vpRect.h.

void vpRect::setLeft ( double pos )

inline

Sets the left edge position of the rectangle to pos. May change the right edge position of the rectangle, but will never change the width of the rectangle.

See also: setRight()

Examples:: testCrop.cpp.

Definition at line 257 of file vpRect.h.

Referenced by vpMbtFaceDepthDense::computeDesiredFeatures(), vpMbtFaceDepthNormal::computeDesiredFeatures(), vpImageSimulator::init(), and set().

void vpRect::setRect	(	double	l,
		double	t,
		double	w,
		double	h
	)

inline

Sets the coordinates of the rectangle's top left corner to (left, top), and its size to (width, height).

Parameters

l	: horizontal position of the rectangle upper/left corner position.
t	: vertical position of the rectangle upper/left corner position.
w	: rectangle width.
h	: rectangle height.

Definition at line 268 of file vpRect.h.

Referenced by vpDot2::getBBox(), vpDot::getBBox(), and vpDot2::setMaxSizeSearchDistancePrecision().

void vpRect::setRight ( double pos )

inline

Sets the right edge position of the rectangle to pos. May change the width of the rectangle, but will never change the left edge position of the rectangle.

See also: setLeft()

Definition at line 283 of file vpRect.h.

Referenced by vpMbtFaceDepthDense::computeDesiredFeatures(), vpMbtFaceDepthNormal::computeDesiredFeatures(), vpImageSimulator::init(), set(), and vpRect().

void vpRect::setTop ( double pos )

inline

Sets the top edge position of the rectangle to pos. May change the bottom edge position of the rectangle, but will never change the height of the rectangle.