#include <visp3/core/vpImagePoint.h>

Public Member Functions
	vpImagePoint ()

	vpImagePoint (double ii, double jj)

	vpImagePoint (const vpImagePoint &ip)

virtual	~vpImagePoint ()

double	get_i () const

double	get_j () const

double	get_u () const

double	get_v () const

bool	inRectangle (const vpRect &rect) const

bool	inSegment (const vpImagePoint &start, const vpImagePoint &end) const

vpImagePoint	nextInSegment (const vpImagePoint &start, const vpImagePoint &end) const

vpImagePoint &	operator= (const vpImagePoint &ip)

vpImagePoint &	operator+= (const vpImagePoint &ip)

vpImagePoint &	operator-= (const vpImagePoint &ip)

vpImagePoint &	operator/= (double scale)

vpImagePoint &	operator*= (double scale)

void	set_i (double ii)

void	set_j (double jj)

void	set_ij (double ii, double jj)

void	set_u (double u)

void	set_v (double v)

void	set_uv (double u, double v)

Static Public Member Functions
static double	distance (const vpImagePoint &iP1, const vpImagePoint &iP2)

static vpRect	getBBox (const std::vector< vpImagePoint > &ipVec)

static double	sqrDistance (const vpImagePoint &iP1, const vpImagePoint &iP2)

Friends
VISP_EXPORT bool	operator== (const vpImagePoint &ip1, const vpImagePoint &ip2)

VISP_EXPORT bool	operator!= (const vpImagePoint &ip1, const vpImagePoint &ip2)

VISP_EXPORT vpImagePoint	operator+= (const vpImagePoint &ip1, const vpImagePoint &ip2)

VISP_EXPORT vpImagePoint	operator+ (const vpImagePoint &ip1, const vpImagePoint &ip2)

VISP_EXPORT vpImagePoint	operator+ (const vpImagePoint &ip1, int offset)

VISP_EXPORT vpImagePoint	operator+ (const vpImagePoint &ip1, unsigned int offset)

VISP_EXPORT vpImagePoint	operator+ (const vpImagePoint &ip1, double offset)

VISP_EXPORT vpImagePoint	operator- (const vpImagePoint &ip1, const vpImagePoint &ip2)

VISP_EXPORT vpImagePoint	operator- (const vpImagePoint &ip1, int offset)

VISP_EXPORT vpImagePoint	operator- (const vpImagePoint &ip1, unsigned int offset)

VISP_EXPORT vpImagePoint	operator- (const vpImagePoint &ip1, double offset)

VISP_EXPORT vpImagePoint	operator* (const vpImagePoint &ip1, double scale)

VISP_EXPORT vpImagePoint	operator/ (const vpImagePoint &ip1, double scale)

VISP_EXPORT std::ostream &	operator<< (std::ostream &os, const vpImagePoint &ip)

Related Functions
(Note that these are not member functions.)
VISP_EXPORT bool	operator== (const vpImagePoint &ip1, const vpImagePoint &ip2)

VISP_EXPORT bool	operator!= (const vpImagePoint &ip1, const vpImagePoint &ip2)

VISP_EXPORT vpImagePoint	operator+ (const vpImagePoint &ip1, const vpImagePoint &ip2)

VISP_EXPORT vpImagePoint	operator+= (const vpImagePoint &ip1, const vpImagePoint &ip2)

VISP_EXPORT vpImagePoint	operator+ (const vpImagePoint &ip1, int offset)

VISP_EXPORT vpImagePoint	operator+ (const vpImagePoint &ip1, unsigned int offset)

VISP_EXPORT vpImagePoint	operator+ (const vpImagePoint &ip1, double offset)

VISP_EXPORT vpImagePoint	operator- (const vpImagePoint &ip1, const vpImagePoint &ip2)

VISP_EXPORT vpImagePoint	operator- (const vpImagePoint &ip1, int offset)

VISP_EXPORT vpImagePoint	operator- (const vpImagePoint &ip1, unsigned int offset)

VISP_EXPORT vpImagePoint	operator- (const vpImagePoint &ip1, double offset)

VISP_EXPORT vpImagePoint	operator* (const vpImagePoint &ip1, double scale)

VISP_EXPORT vpImagePoint	operator/ (const vpImagePoint &ip1, double scale)

VISP_EXPORT std::ostream &	operator<< (std::ostream &os, const vpImagePoint &ip)

Detailed Description

Class that defines a 2D point in an image. This class is useful for image processing and stores only the 2D coordinates given in sub-pixel.

Warning: If you want to define a point thanks to its coordinates given in meter in the object frame, the camera frame or the image plane, you have to use the class vpPoint.

In this class, the 2D coordinates are not necessary integer values. It is easy to manipulate the given coordinates in the two frames used in ViSP : the (i,j) coordinates and the (u,v) coordinates. The two following images illustrate the two coordinate systems.

Warning: An instance of the vpImagePoint class corresponds to a particular point. Thus, if you change the point coordinate using the method set_i(double i), it produces the same effect than if you used the method set_v(double v). These two methods change the same private attribute. It is also true for the two methods set_j(double j) and set_u(double u).

Examples: AROgre.cpp, AROgreBasic.cpp, BSpline.cpp, SickLDMRS-Process.cpp, catchAprilTag.cpp, catchImagePoint.cpp, catchLineFitting.cpp, catchParticleFilter.cpp, displayD3D.cpp, displayGTK.cpp, displayOpenCV.cpp, grabRealSense2_T265.cpp, manDisplay.cpp, mbot-apriltag-2D-half-vs.cpp, poseVirtualVS.cpp, readRealSenseData.cpp, servoAfma4Point2DArtVelocity.cpp, servoAfma4Point2DCamVelocity.cpp, servoAfma4Point2DCamVelocityKalman.cpp, servoAfma62DhalfCamVelocity.cpp, servoAfma6AprilTagIBVS.cpp, servoAfma6Ellipse2DCamVelocity.cpp, servoAfma6FourPoints2DArtVelocity.cpp, servoAfma6FourPoints2DCamVelocityLs_cur.cpp, servoAfma6FourPoints2DCamVelocityLs_cur_integrator.cpp, servoAfma6FourPoints2DCamVelocityLs_des.cpp, servoAfma6MegaposePBVS.cpp, servoAfma6Point2DArtVelocity.cpp, servoAfma6Point2DCamVelocity.cpp, servoAfma6Points2DCamVelocityEyeToHand.cpp, servoAfma6Segment2DCamVelocity.cpp, servoBebop2.cpp, servoBiclopsPoint2DArtVelocity.cpp, servoFlirPtuIBVS.cpp, servoFrankaIBVS.cpp, servoPololuPtuPoint2DJointVelocity.cpp, servoPtu46Point2DArtVelocity.cpp, servoSimuFourPoints2DPolarCamVelocityDisplay.cpp, servoUniversalRobotsIBVS.cpp, servoViper650FourPoints2DArtVelocityLs_cur.cpp, servoViper650FourPoints2DCamVelocityLs_cur-SR300.cpp, servoViper650FourPoints2DCamVelocityLs_cur.cpp, servoViper650Point2DCamVelocity.cpp, servoViper850FourPoints2DArtVelocityLs_cur.cpp, servoViper850FourPoints2DArtVelocityLs_des.cpp, servoViper850FourPoints2DCamVelocityLs_cur.cpp, servoViper850FourPointsKinect.cpp, servoViper850Point2DArtVelocity-jointAvoidance-basic.cpp, servoViper850Point2DArtVelocity-jointAvoidance-gpa.cpp, servoViper850Point2DArtVelocity-jointAvoidance-large.cpp, servoViper850Point2DArtVelocity.cpp, servoViper850Point2DCamVelocity.cpp, servoViper850Point2DCamVelocityKalman.cpp, templateTracker.cpp, testCameraParametersConversion.cpp, testClick.cpp, testConnectedComponents.cpp, testConvert.cpp, testDisplayScaled.cpp, testDisplays.cpp, testFloodFill.cpp, testGenericTracker.cpp, testGenericTrackerDepth.cpp, testImageCircle.cpp, testImageDraw.cpp, testImageNormalizedCorrelation.cpp, testImageTemplateMatching.cpp, testKeyPoint-2.cpp, testKeyPoint-3.cpp, testKeyPoint-4.cpp, testKeyPoint-5.cpp, testKeyPoint-6.cpp, testKeyPoint.cpp, testMouseEvent.cpp, testNurbs.cpp, testPolygon.cpp, testRealSense2_D435_align.cpp, testRealSense2_D435_opencv.cpp, testRealSense2_T265_images_odometry.cpp, testRealSense2_T265_images_odometry_async.cpp, testRealSense2_T265_odometry.cpp, testRobotAfma6Pose.cpp, testRobotViper850Pose.cpp, testTrackDot.cpp, testVirtuoseWithGlove.cpp, testXmlParserRectOriented.cpp, trackDot.cpp, trackDot2WithAutoDetection.cpp, trackMeCircle.cpp, trackMeEllipse.cpp, trackMeLine.cpp, trackMeNurbs.cpp, tutorial-apriltag-detector.cpp, tutorial-autothreshold.cpp, tutorial-barcode-detector-live.cpp, tutorial-barcode-detector.cpp, tutorial-blob-tracker-live-firewire.cpp, tutorial-blob-tracker-live-v4l2.cpp, tutorial-brightness-adjustment.cpp, tutorial-canny.cpp, tutorial-circle-hough.cpp, tutorial-detection-object-mbt2-deprecated.cpp, tutorial-detection-object-mbt2.cpp, tutorial-draw-circle.cpp, tutorial-draw-frame.cpp, tutorial-flir-ptu-ibvs.cpp, tutorial-flood-fill.cpp, tutorial-homography-from-points.cpp, tutorial-hsv-range-tuner.cpp, tutorial-ibvs-4pts-display.cpp, tutorial-ibvs-4pts-wireframe-camera.cpp, tutorial-ibvs-4pts-wireframe-robot-afma6.cpp, tutorial-ibvs-4pts-wireframe-robot-viper.cpp, tutorial-image-colormap.cpp, tutorial-image-viewer.cpp, tutorial-klt-tracker-live-v4l2.cpp, tutorial-klt-tracker.cpp, tutorial-matching-keypoint-SIFT.cpp, tutorial-matching-keypoint-homography.cpp, tutorial-matching-keypoint.cpp, tutorial-mb-generic-tracker-read.cpp, tutorial-megapose-live-single-object-tracking.cpp, tutorial-munkres-assignment.cpp, tutorial-pf-curve-fitting-all.cpp, tutorial-pf-curve-fitting-pf.cpp, tutorial-pf.cpp, tutorial-pose-from-planar-object.cpp, tutorial-pose-from-points-image.cpp, tutorial-pose-from-qrcode-image.cpp, and tutorial-ukf.cpp.

Definition at line 81 of file vpImagePoint.h.

Constructor & Destructor Documentation

◆ vpImagePoint() [1/3]

vpImagePoint::vpImagePoint ( )

inline

Default constructor that initialize the coordinates of the image point to zero.

Definition at line 88 of file vpImagePoint.h.

◆ vpImagePoint() [2/3]

vpImagePoint::vpImagePoint	(	double	ii,
		double	jj
	)

inline

Default constructor that initialize the coordinates of the image thanks to the parameters $ ii $ and $ jj $ .

Definition at line 93 of file vpImagePoint.h.

◆ vpImagePoint() [3/3]

vpImagePoint::vpImagePoint ( const vpImagePoint & ip )

inline

Copy constructor.

Initialize the coordinates of the image point with ip.

Parameters

ip	: An image point.

Definition at line 101 of file vpImagePoint.h.

◆ ~vpImagePoint()

virtual vpImagePoint::~vpImagePoint ( )

inlinevirtual

Destructor.

Definition at line 103 of file vpImagePoint.h.

Member Function Documentation

◆ distance()

double vpImagePoint::distance	(	const vpImagePoint &	iP1,
		const vpImagePoint &	iP2
	)

static

Compute the distance $|iP1 - iP2| = \sqrt{(i_1-i_2)^2+(j_1-j_2)^2}$

Parameters

iP1	: First point
iP2	: Second point

Returns: the distance between the two points.

Examples: grabRealSense2_T265.cpp, servoAfma6AprilTagIBVS.cpp, servoAfma6AprilTagPBVS.cpp, servoFlirPtuIBVS.cpp, servoFrankaIBVS.cpp, servoFrankaPBVS.cpp, servoUniversalRobotsIBVS.cpp, servoUniversalRobotsPBVS.cpp, testCameraParametersConversion.cpp, testImageNormalizedCorrelation.cpp, testRealSense2_T265_images_odometry.cpp, testRealSense2_T265_images_odometry_async.cpp, testRealSense2_T265_odometry.cpp, tutorial-megapose-live-single-object-tracking.cpp, and tutorial-munkres-assignment.cpp.

Definition at line 482 of file vpImagePoint.cpp.

References get_i(), get_j(), and vpMath::sqr().

Referenced by vpDisplayGTK::displayArrow(), vpDisplay::displayDotLine(), vpDisplay::displayLine(), vpImageDraw::drawArrow(), vpNurbs::globalCurveInterp(), vpMeEllipse::leastSquareRobustCircle(), vpMeEllipse::leastSquareRobustEllipse(), vpCircleHoughTransform::mergeCandidates(), vpMeNurbs::seekExtremities(), vpMeNurbs::track(), and vpMeNurbs::updateDelta().

◆ get_i()

double vpImagePoint::get_i ( ) const

inline

Gets the point coordinate corresponding to the $ i $ axes in the frame (i,j).

Returns: The value of the coordinate along the axes.

See also: get_j(), get_u(), get_v()

Examples: catchAprilTag.cpp, tutorial-canny.cpp, tutorial-flood-fill.cpp, and tutorial-hsv-range-tuner.cpp.

Definition at line 114 of file vpImagePoint.h.

Referenced by VISP_NAMESPACE_NAME::addContourPoint(), vpNurbs::computeCurveDersPoint(), vpImageTools::crop(), VISP_NAMESPACE_NAME::crossesEastBorder(), vpDisplayGTK::displayArrow(), vpDisplayGTK::displayCross(), vpDisplayGTK::displayImageROI(), vpDisplay::displayLine(), vpKeyPoint::displayMatching(), vpDisplayWin32::displayRectangle(), distance(), vpImageDraw::drawArrow(), vpImageDraw::drawCross(), vpImageDraw::drawDottedLine(), vpImageTools::extract(), VISP_NAMESPACE_NAME::findContours(), VISP_NAMESPACE_NAME::floodFill(), VISP_NAMESPACE_NAME::followBorder(), VISP_NAMESPACE_NAME::fromTo(), vpMbtFaceDepthNormal::getFeaturesForDisplay(), vpMbtDistanceCircle::getModelForDisplay(), vpMbtDistanceCylinder::getModelForDisplay(), vpMbtDistanceLine::getModelForDisplay(), vpPolygon3D::getNbCornerInsideImage(), vpImage< Type >::getValue(), vpMbtDistanceCylinder::initMovingEdge(), vpMbtDistanceLine::initMovingEdge(), vpDot::initTracking(), vpMeLine::initTracking(), vpDot2::initTracking(), inSegment(), vpImage< Type >::insert(), vpImageTools::interpolate(), vpTemplateTrackerTriangle::inTriangle(), vpTriangle::inTriangle(), vpRect::isInside(), vpPolygon::isInside(), vpWireFrameSimulator::navigation(), nextInSegment(), vpImage< Type >::operator()(), vpRectOriented::operator=(), vpMeTracker::outOfImage(), vpMeEllipse::plugHoles(), vpNurbs::removeCurveKnot(), vpMeEllipse::sample(), vpMeLine::sample(), vpMeNurbs::seekExtremitiesCanny(), vpRectOriented::setOrientation(), vpRectOriented::setPoints(), vpRectOriented::setSize(), sqrDistance(), vpMbtDistanceCylinder::updateMovingEdge(), vpMbtDistanceLine::updateMovingEdge(), VISP_NAMESPACE_NAME::visitNeighbors(), and vpRectOriented::vpRectOriented().

◆ get_j()

double vpImagePoint::get_j ( ) const

inline

Gets the point coordinate corresponding to the $ j $ axes in the frame (i,j).

Returns: The value of the coordinate along the axes.

See also: get_i(), get_u(), get_v()

Examples: catchAprilTag.cpp, testImageDraw.cpp, tutorial-canny.cpp, tutorial-flood-fill.cpp, and tutorial-hsv-range-tuner.cpp.

Definition at line 125 of file vpImagePoint.h.

Referenced by VISP_NAMESPACE_NAME::addContourPoint(), vpNurbs::computeCurveDersPoint(), vpImageTools::crop(), VISP_NAMESPACE_NAME::crossesEastBorder(), vpDisplayGTK::displayArrow(), vpDisplayGTK::displayCross(), vpDisplayGTK::displayImageROI(), vpDisplay::displayLine(), vpKeyPoint::displayMatching(), vpDisplayWin32::displayRectangle(), distance(), vpImageDraw::drawArrow(), vpImageDraw::drawCross(), vpImageDraw::drawDottedLine(), vpImageTools::extract(), VISP_NAMESPACE_NAME::findContours(), VISP_NAMESPACE_NAME::floodFill(), VISP_NAMESPACE_NAME::followBorder(), VISP_NAMESPACE_NAME::fromTo(), vpMbtFaceDepthNormal::getFeaturesForDisplay(), vpMbtDistanceCircle::getModelForDisplay(), vpMbtDistanceCylinder::getModelForDisplay(), vpMbtDistanceLine::getModelForDisplay(), vpPolygon3D::getNbCornerInsideImage(), vpImage< Type >::getValue(), vpMbtDistanceCylinder::initMovingEdge(), vpMbtDistanceLine::initMovingEdge(), vpDot::initTracking(), vpMeLine::initTracking(), vpDot2::initTracking(), inSegment(), vpImage< Type >::insert(), vpImageTools::interpolate(), vpTemplateTrackerTriangle::inTriangle(), vpTriangle::inTriangle(), vpRect::isInside(), vpPolygon::isInside(), vpWireFrameSimulator::navigation(), nextInSegment(), vpImage< Type >::operator()(), vpRectOriented::operator=(), vpMeTracker::outOfImage(), vpMeEllipse::plugHoles(), vpNurbs::removeCurveKnot(), vpMeEllipse::sample(), vpMeLine::sample(), vpMeNurbs::seekExtremitiesCanny(), vpRectOriented::setOrientation(), vpRectOriented::setPoints(), vpRectOriented::setSize(), sqrDistance(), vpMbtDistanceCylinder::updateMovingEdge(), vpMbtDistanceLine::updateMovingEdge(), VISP_NAMESPACE_NAME::visitNeighbors(), and vpRectOriented::vpRectOriented().

◆ get_u()

double vpImagePoint::get_u ( ) const

inline

Gets the point coordinate corresponding to the $ u $ axes in the frame (u,v).

Returns: The value of the coordinate along the axes.

See also: get_i(), get_j(), get_v()

Examples: catchParticleFilter.cpp, servoAfma4Point2DCamVelocityKalman.cpp, testConvert.cpp, testImageDraw.cpp, testRealSense2_D435_align.cpp, testRealSense2_D435_opencv.cpp, trackDot.cpp, trackDot2WithAutoDetection.cpp, tutorial-flood-fill.cpp, tutorial-klt-tracker-live-v4l2.cpp, tutorial-klt-tracker.cpp, tutorial-pf-curve-fitting-all.cpp, and tutorial-pf-curve-fitting-pf.cpp.

Definition at line 136 of file vpImagePoint.h.

Referenced by vpMeEllipse::computeAngleOnEllipse(), vpImageCircle::computeAngularCoverageInRoI(), vpImageCircle::computePixelsInMask(), vpPose::computePlanarObjectPoseFromRGBD(), vpCalibration::computeStdDeviation(), vpCalibration::computeStdDeviation_dist(), vpMeEllipse::computeTheta(), vpPixelMeterConversion::convertPoint(), vpDot2::defineDots(), vpCalibration::displayData(), vpDisplayGTK::displayRectangle(), vpDisplayOpenCV::displayRectangle(), vpImageDraw::drawEllipse(), vpImageDraw::drawLine(), vpDisplayWin32::flushDisplayROI(), vpDot2::getDistance(), vpTemplateTrackerTriangle::init(), vpPolygon::isInside(), vpMath::lineFitting(), vpRect::moveCenter(), vpHomography::project(), vpColorDepthConversion::projectColorToDepth(), vpHomography::projection(), vpDot2::searchDotsInArea(), vpRect::set(), vpRect::setBottomRight(), vpRect::setTopLeft(), vpDot::track(), vpDot2::track(), vpRect::vpRect(), vpTemplateTrackerTriangle::vpTemplateTrackerTriangle(), and vpCalibration::writeData().

◆ get_v()

double vpImagePoint::get_v ( ) const

inline

Gets the point coordinate corresponding to the $ v $ axes in the frame (u,v).

Returns: The value of the coordinate along the axes.

See also: get_i(), get_j(), get_u()

Examples: catchParticleFilter.cpp, servoAfma4Point2DCamVelocityKalman.cpp, testConvert.cpp, testImageDraw.cpp, testRealSense2_D435_align.cpp, testRealSense2_D435_opencv.cpp, trackDot.cpp, trackDot2WithAutoDetection.cpp, tutorial-flood-fill.cpp, tutorial-klt-tracker-live-v4l2.cpp, tutorial-klt-tracker.cpp, tutorial-pf-curve-fitting-all.cpp, and tutorial-pf-curve-fitting-pf.cpp.

Definition at line 147 of file vpImagePoint.h.

Referenced by vpMeEllipse::computeAngleOnEllipse(), vpImageCircle::computeAngularCoverageInRoI(), vpImageCircle::computePixelsInMask(), vpPose::computePlanarObjectPoseFromRGBD(), vpCalibration::computeStdDeviation(), vpCalibration::computeStdDeviation_dist(), vpMeEllipse::computeTheta(), vpPixelMeterConversion::convertPoint(), vpDot2::defineDots(), vpCalibration::displayData(), vpDisplayGTK::displayRectangle(), vpDisplayOpenCV::displayRectangle(), vpImageDraw::drawEllipse(), vpImageDraw::drawLine(), vpDisplayWin32::flushDisplayROI(), vpDot2::getDistance(), vpTemplateTrackerTriangle::init(), vpPolygon::isInside(), vpMath::lineFitting(), vpRect::moveCenter(), vpHomography::project(), vpColorDepthConversion::projectColorToDepth(), vpHomography::projection(), vpDot2::searchDotsInArea(), vpRect::set(), vpRect::setBottomRight(), vpRect::setTopLeft(), vpDot::track(), vpDot2::track(), vpRect::vpRect(), vpTemplateTrackerTriangle::vpTemplateTrackerTriangle(), and vpCalibration::writeData().

◆ getBBox()

vpRect vpImagePoint::getBBox ( const std::vector< vpImagePoint > & ipVec )

static

Computes and returns the bounding box.

Parameters

ipVec : Vector of input image points.

Returns: Bounding box of the points.

Definition at line 467 of file vpImagePoint.cpp.

◆ inRectangle()

BEGIN_VISP_NAMESPACE bool vpImagePoint::inRectangle ( const vpRect & rect ) const

Check if an image point belongs to a rectangle.

Parameters

rect	: the rectangle.

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

Definition at line 51 of file vpImagePoint.cpp.

References vpRect::getBottom(), vpRect::getLeft(), vpRect::getRight(), and vpRect::getTop().

Referenced by vpPlot::navigate().

◆ inSegment()

bool vpImagePoint::inSegment	(	const vpImagePoint &	start,
		const vpImagePoint &	end
	)		const

inline

Test if the image point belongs to a segment represented by two image points.

Parameters

[in]	start	: Segment start image point.
[in]	end	: Segment end image point.

Returns: True if current image point belongs to the segment. False otherwise.

To see how to use this function, a code snippet is given in nextInSegment().

See also: nextInSegment()

Definition at line 162 of file vpImagePoint.h.

References get_i(), and get_j().

Referenced by vpColorDepthConversion::projectColorToDepth().

◆ nextInSegment()

vpImagePoint vpImagePoint::nextInSegment	(	const vpImagePoint &	start,
		const vpImagePoint &	end
	)		const

inline

Considering current image point, returns the next image point that belongs to the segment [start,end].

Parameters

[in]	start	: Segment start image point.
[in]	end	: Segment end image point.

Returns: Regarding current image point, next image point that belongs to the liSegmentne [start,end].

The following sample code shows how to use this function to find all the pixels that belong to the segment defined by 2 image points with coordinates [10,12] and [20,16]:

#include <iostream>
#include <visp3/core/vpImagePoint.h>
 
#ifdef ENABLE_VISP_NAMESPACE
using namespace VISP_NAMESPACE_NAME;
#endif
 
int main()
{
  vpImagePoint start_pixel(10, 12);
  vpImagePoint end_pixel(20, 16);
 
  for (auto curr_pixel = start_pixel; curr_pixel.inSegment(start_pixel, end_pixel);
    curr_pixel = curr_pixel.nextInSegment(start_pixel, end_pixel)) {
    std::cout << "pixel: " << curr_pixel << std::endl;
    if (curr_pixel == end_pixel) break;
  }
 
  return EXIT_SUCCESS;
}

It produces the following output by printing all the pixels belonging to the segment:

pixel: 10, 12
pixel: 11, 12.4
pixel: 12, 12.8
pixel: 13, 13.2
pixel: 14, 13.6
pixel: 15, 14
pixel: 16, 14.4
pixel: 17, 14.8
pixel: 18, 15.2
pixel: 19, 15.6
pixel: 20, 16

See also: inSegment()

Definition at line 220 of file vpImagePoint.h.

References get_i(), and get_j().

Referenced by vpColorDepthConversion::projectColorToDepth().

◆ operator*=()

vpImagePoint& vpImagePoint::operator*= ( double scale )

inline

Operator *=.

Definition at line 282 of file vpImagePoint.h.

◆ operator+=()

vpImagePoint & vpImagePoint::operator+= ( const vpImagePoint & ip )

Operator +=.

This operator can be used to compute the center of gravity of a set of image points.

#include <iostream>
#include <vector>
#include <visp3/core/vpImagePoint.h>
 
#ifdef ENABLE_VISP_NAMESPACE
using namespace VISP_NAMESPACE_NAME;
#endif
 
int main()
{
  std::vector<vpImagePoint> ip(2);
 
  ip[0].set_ij(100, 200);
  ip[1].set_ij(300, 400);
 
  vpImagePoint cog(0,0);
  for(unsigned int i=0; i<ip.size(); ++i)
    cog += ip[i];
  cog /= ip.size();
  std::cout << "cog: " << cog << std::endl;
}

Definition at line 87 of file vpImagePoint.cpp.

◆ operator-=()

vpImagePoint& vpImagePoint::operator-= ( const vpImagePoint & ip )

inline

Operator -=.

Definition at line 270 of file vpImagePoint.h.

◆ operator/=()

vpImagePoint & vpImagePoint::operator/= ( double scale )

Operator /=.

This operator can be used to compute the center of gravity of a set of image points.

#include <iostream>
#include <vector>
#include <visp3/core/vpImagePoint.h>
 
#ifdef ENABLE_VISP_NAMESPACE
using namespace VISP_NAMESPACE_NAME;
#endif
 
int main()
{
  std::vector<vpImagePoint> ip(2);
 
  ip[0].set_ij(100, 200);
  ip[1].set_ij(300, 400);
 
  vpImagePoint cog(0,0);
  for(unsigned int i=0; i<ip.size(); ++i)
    cog += ip[i];
  cog /= ip.size();
  std::cout << "cog: " << cog << std::endl;
}

Definition at line 123 of file vpImagePoint.cpp.

◆ operator=()

vpImagePoint& vpImagePoint::operator= ( const vpImagePoint & ip )

inline

Copy operator.

Definition at line 244 of file vpImagePoint.h.

◆ set_i()

void vpImagePoint::set_i ( double ii )

inline

Sets the point coordinate corresponding to the $ i $ axes in the frame (i,j).

Parameters

ii	: The desired value for the coordinate along the axes.

See also: set_j(), set_u(), set_v()

Examples: AROgre.cpp, AROgreBasic.cpp, SickLDMRS-Process.cpp, catchImagePoint.cpp, displayD3D.cpp, displayGTK.cpp, displayOpenCV.cpp, manDisplay.cpp, servoSimuFourPoints2DPolarCamVelocityDisplay.cpp, testDisplays.cpp, testImageDraw.cpp, testTrackDot.cpp, and trackMeLine.cpp.

Definition at line 298 of file vpImagePoint.h.

Referenced by vpBSpline::computeCurveDers(), vpNurbs::computeCurveDersPoint(), vpBSpline::computeCurvePoint(), vpNurbs::computeCurvePoint(), vpMeLine::computeRhoTheta(), vpDisplayGTK::displayArrow(), vpDisplayGTK::displayCross(), vpMeLine::displayLine(), vpDisplayWin32::displayRectangle(), vpImageDraw::drawArrow(), vpImageDraw::drawCross(), vpMeLine::getExtremities(), vpMeSite::getQueryList(), vpMeLine::intersection(), vpPolygon::isInside(), vpRectOriented::operator=(), vpNurbs::refineKnotVectCurve(), vpNurbs::removeCurveKnot(), vpMeLine::sample(), vpMeLine::seekExtremities(), vpImageSimulator::setCameraPosition(), vpRectOriented::setOrientation(), vpRectOriented::setPoints(), vpRectOriented::setSize(), vpMeSite::track(), vpPolygon::updateCenter(), and vpRectOriented::vpRectOriented().

◆ set_ij()

void vpImagePoint::set_ij	(	double	ii,
		double	jj
	)

inline

Sets the point coordinates in the frame (i,j).

Parameters

ii	: The desired value for the coordinate along the axes.
jj	: The desired value for the coordinate along the axes.

See also: set_i(), set_j(), set_u(), set_v()

Examples: BSpline.cpp, templateTracker.cpp, testNurbs.cpp, and tutorial-matching-keypoint-homography.cpp.

Definition at line 320 of file vpImagePoint.h.

Referenced by vpKeyPoint::compute3DForPointsInPolygons(), vpBSpline::computeCurveDers(), vpNurbs::computeCurveDersPoint(), vpNurbs::curveKnotIns(), vpFeatureDisplay::displayLine(), vpKeyPoint::displayMatching(), vpImageSimulator::getImage(), vpBasicKeyPoint::getMatchedPoints(), vpImage< Type >::getMinMaxLoc(), vpMbtDistanceCylinder::getModelForDisplay(), vpBasicKeyPoint::getReferencePoint(), vpNurbs::globalCurveApprox(), vpNurbs::globalCurveInterp(), vpMbtDistanceCylinder::initMovingEdge(), vpMeEllipse::leastSquareRobust(), vpMeEllipse::plugHoles(), vpMeNurbs::seekExtremities(), vpMbtDistanceCylinder::updateMovingEdge(), vpMeEllipse::updateTheta(), and vpMeEllipse::vpMeEllipse().

◆ set_j()

void vpImagePoint::set_j ( double jj )

inline

Sets the point coordinate corresponding to the $ j $ axes in the frame (i,j).

Parameters

jj	: The desired value for the coordinate along the axes.

See also: set_i(), set_u(), set_v()

Examples: AROgre.cpp, AROgreBasic.cpp, SickLDMRS-Process.cpp, catchImagePoint.cpp, displayD3D.cpp, displayGTK.cpp, displayOpenCV.cpp, manDisplay.cpp, servoSimuFourPoints2DPolarCamVelocityDisplay.cpp, testDisplays.cpp, testImageDraw.cpp, testTrackDot.cpp, and trackMeLine.cpp.

Definition at line 309 of file vpImagePoint.h.

Referenced by vpBSpline::computeCurveDers(), vpNurbs::computeCurveDersPoint(), vpBSpline::computeCurvePoint(), vpNurbs::computeCurvePoint(), vpMeLine::computeRhoTheta(), vpDisplayGTK::displayArrow(), vpDisplayGTK::displayCross(), vpMeLine::displayLine(), vpDisplayWin32::displayRectangle(), vpImageDraw::drawArrow(), vpImageDraw::drawCross(), VISP_NAMESPACE_NAME::findContours(), vpMeLine::getExtremities(), vpMeSite::getQueryList(), vpMeLine::intersection(), vpPolygon::isInside(), vpRectOriented::operator=(), vpNurbs::removeCurveKnot(), vpMeLine::sample(), vpMeLine::seekExtremities(), vpImageSimulator::setCameraPosition(), vpRectOriented::setOrientation(), vpRectOriented::setPoints(), vpRectOriented::setSize(), vpMeSite::track(), vpPolygon::updateCenter(), and vpRectOriented::vpRectOriented().

◆ set_u()

void vpImagePoint::set_u ( double u )

inline

Sets the point coordinate corresponding to the $ u $ axes in the frame (u,v).

Parameters

u	: The desired value for the coordinate along the axes.

See also: set_i(), set_j(), set_v()

Examples: catchImagePoint.cpp, poseVirtualVS.cpp, and trackDot.cpp.

Definition at line 335 of file vpImagePoint.h.

Referenced by vpMeEllipse::computePointOnEllipse(), vpMeterPixelConversion::convertPoint(), vpKltOpencv::display(), vpCalibration::displayData(), vpCalibration::displayGrid(), vpRect::getBottomLeft(), vpRect::getBottomRight(), vpRect::getCenter(), vpDisplayWin32::getClick(), vpDisplayWin32::getClickUp(), vpDisplayWin32::getPointerMotionEvent(), vpDisplayWin32::getPointerPosition(), vpRect::getTopLeft(), vpRect::getTopRight(), vpKeyPoint::matchPointAndDetect(), vpHomography::projection(), vpCalibration::readData(), and vpDot::track().

◆ set_uv()

void vpImagePoint::set_uv	(	double	u,
		double	v
	)

inline

Sets the point coordinates in the frame (u,v).

Parameters

u	: The desired value for the coordinate along the axes.
v	: The desired value for the coordinate along the axes.

See also: set_i(), set_j(), set_u(), set_v()

Examples: testKeyPoint-5.cpp, testKeyPoint-6.cpp, and tutorial-flood-fill.cpp.

Definition at line 357 of file vpImagePoint.h.

Referenced by vpMeEllipse::computePointOnEllipse(), vpDot2::defineDots(), vpImageDraw::drawEllipse(), vpTemplateTrackerZone::getCenter(), vpTemplateTrackerTriangle::getCorners(), vpMeEllipse::getParameters(), vpMeEllipse::initTracking(), vpMeEllipse::leastSquareRobustCircle(), and vpMeEllipse::leastSquareRobustEllipse().

◆ set_v()

void vpImagePoint::set_v ( double v )

inline

Sets the point coordinate corresponding to the $ v $ axes in the frame (u,v).

Parameters

v	: The desired value for the coordinate along the axes.

See also: set_i(), set_j(), set_u()

Examples: catchImagePoint.cpp, poseVirtualVS.cpp, and trackDot.cpp.

Definition at line 346 of file vpImagePoint.h.

Referenced by vpMeEllipse::computePointOnEllipse(), vpMeterPixelConversion::convertPoint(), vpKltOpencv::display(), vpCalibration::displayData(), vpRect::getBottomLeft(), vpRect::getBottomRight(), vpRect::getCenter(), vpDisplayWin32::getClick(), vpDisplayWin32::getClickUp(), vpDisplayWin32::getPointerMotionEvent(), vpDisplayWin32::getPointerPosition(), vpRect::getTopLeft(), vpRect::getTopRight(), vpKeyPoint::matchPointAndDetect(), vpHomography::projection(), vpCalibration::readData(), and vpDot::track().

◆ sqrDistance()

double vpImagePoint::sqrDistance	(	const vpImagePoint &	iP1,
		const vpImagePoint &	iP2
	)

static

Compute the distance

Parameters

iP1	: First point
iP2	: Second point

Returns: the distance between the two points.

Examples: tutorial-pf.cpp.

Definition at line 495 of file vpImagePoint.cpp.

References get_i(), get_j(), and vpMath::sqr().

Referenced by vpMarkersMeasurements::likelihood(), vpMeNurbs::localReSample(), and vpMeNurbs::sample().

Friends And Related Function Documentation

◆ operator!= [1/2]

VISP_EXPORT bool operator!=	(	const vpImagePoint &	ip1,
		const vpImagePoint &	ip2
	)

friend

Returns true if ip1 and ip2 are different; otherwire returns true.

Definition at line 153 of file vpImagePoint.cpp.

◆ operator!=() [2/2]

VISP_EXPORT bool operator!=	(	const vpImagePoint &	ip1,
		const vpImagePoint &	ip2
	)

Definition at line 153 of file vpImagePoint.cpp.

◆ operator* [1/2]

VISP_EXPORT vpImagePoint operator*	(	const vpImagePoint &	ip1,
		double	scale
	)

friend

Returns a vpImagePoint with coordinates multiplied by a scale factor.

#include <iostream>
#include <visp3/core/vpImagePoint.h>
 
#ifdef ENABLE_VISP_NAMESPACE
using namespace VISP_NAMESPACE_NAME;
#endif
 
int main()
{
  vpImagePoint ip(100, 200); // Create an image point with coordinates i=100, j=200
  std::cout << "ip: " << ip << std::endl; // coordinates (100, 200)
  std::cout << "ip*2: " << ip*2 << std::endl; // new coordinates (200, 400)
 
  return 0;
}

Definition at line 387 of file vpImagePoint.cpp.

◆ operator*() [2/2]

VISP_EXPORT vpImagePoint operator*	(	const vpImagePoint &	ip1,
		double	scale
	)

#include <iostream>
#include <visp3/core/vpImagePoint.h>
 
#ifdef ENABLE_VISP_NAMESPACE
using namespace VISP_NAMESPACE_NAME;
#endif
 
int main()
{
  vpImagePoint ip(100, 200); // Create an image point with coordinates i=100, j=200
  std::cout << "ip: " << ip << std::endl; // coordinates (100, 200)
  std::cout << "ip*2: " << ip*2 << std::endl; // new coordinates (200, 400)
 
  return 0;
}

Definition at line 387 of file vpImagePoint.cpp.

◆ operator+ [1/8]

VISP_EXPORT vpImagePoint operator+	(	const vpImagePoint &	ip1,
		const vpImagePoint &	ip2
	)

friend

Returns a vpImagePoint which is the sum of and .

Definition at line 170 of file vpImagePoint.cpp.

◆ operator+() [2/8]

VISP_EXPORT vpImagePoint operator+	(	const vpImagePoint &	ip1,
		const vpImagePoint &	ip2
	)

Definition at line 170 of file vpImagePoint.cpp.

◆ operator+ [3/8]

VISP_EXPORT vpImagePoint operator+	(	const vpImagePoint &	ip1,
		double	offset
	)

friend

Returns a vpImagePoint with an offset added to the two coordinates.

#include <iostream>
#include <visp3/core/vpImagePoint.h>
 
#ifdef ENABLE_VISP_NAMESPACE
using namespace VISP_NAMESPACE_NAME;
#endif
 
int main()
{
  vpImagePoint ip(100, 200); // Create an image point with coordinates i=100, j=200
  std::cout << "ip: " << ip << std::endl; // coordinates (100, 200)
  std::cout << "ip+12.34: " << ip+12.34 << std::endl; // new coordinates (112.34, 212.34)
 
  return 0;
}

Definition at line 264 of file vpImagePoint.cpp.

◆ operator+() [4/8]

VISP_EXPORT vpImagePoint operator+	(	const vpImagePoint &	ip1,
		double	offset
	)

#include <iostream>
#include <visp3/core/vpImagePoint.h>
 
#ifdef ENABLE_VISP_NAMESPACE
using namespace VISP_NAMESPACE_NAME;
#endif
 
int main()
{
  vpImagePoint ip(100, 200); // Create an image point with coordinates i=100, j=200
  std::cout << "ip: " << ip << std::endl; // coordinates (100, 200)
  std::cout << "ip+12.34: " << ip+12.34 << std::endl; // new coordinates (112.34, 212.34)
 
  return 0;
}

Definition at line 264 of file vpImagePoint.cpp.

◆ operator+ [5/8]

VISP_EXPORT vpImagePoint operator+	(	const vpImagePoint &	ip1,
		int	offset
	)

friend

Returns a vpImagePoint with an offset added to the two coordinates.

#include <iostream>
#include <visp3/core/vpImagePoint.h>
 
#ifdef ENABLE_VISP_NAMESPACE
using namespace VISP_NAMESPACE_NAME;
#endif
 
int main()
{
  vpImagePoint ip(100, 200); // Create an image point with coordinates i=100, j=200
  std::cout << "ip: " << ip << std::endl; // coordinates (100, 200)
  std::cout << "ip+10: " << ip+10 << std::endl; // new coordinates (110, 210)
 
  return 0;
}

Definition at line 208 of file vpImagePoint.cpp.

◆ operator+() [6/8]

VISP_EXPORT vpImagePoint operator+	(	const vpImagePoint &	ip1,
		int	offset
	)

#include <iostream>
#include <visp3/core/vpImagePoint.h>
 
#ifdef ENABLE_VISP_NAMESPACE
using namespace VISP_NAMESPACE_NAME;
#endif
 
int main()
{
  vpImagePoint ip(100, 200); // Create an image point with coordinates i=100, j=200
  std::cout << "ip: " << ip << std::endl; // coordinates (100, 200)
  std::cout << "ip+10: " << ip+10 << std::endl; // new coordinates (110, 210)
 
  return 0;
}

Definition at line 208 of file vpImagePoint.cpp.

◆ operator+ [7/8]

VISP_EXPORT vpImagePoint operator+	(	const vpImagePoint &	ip1,
		unsigned int	offset
	)

friend

Returns a vpImagePoint with an offset added to the two coordinates.

#include <iostream>
#include <visp3/core/vpImagePoint.h>
 
#ifdef ENABLE_VISP_NAMESPACE
using namespace VISP_NAMESPACE_NAME;
#endif
 
int main()
{
  vpImagePoint ip(100, 200); // Create an image point with coordinates i=100, j=200
  std::cout << "ip: " << ip << std::endl; // coordinates (100, 200)
  std::cout << "ip+10u: " << ip+10u << std::endl; // new coordinates (110, 210)
 
  return 0;
}

Definition at line 236 of file vpImagePoint.cpp.

◆ operator+() [8/8]

VISP_EXPORT vpImagePoint operator+	(	const vpImagePoint &	ip1,
		unsigned int	offset
	)

#include <iostream>
#include <visp3/core/vpImagePoint.h>
 
#ifdef ENABLE_VISP_NAMESPACE
using namespace VISP_NAMESPACE_NAME;
#endif
 
int main()
{
  vpImagePoint ip(100, 200); // Create an image point with coordinates i=100, j=200
  std::cout << "ip: " << ip << std::endl; // coordinates (100, 200)
  std::cout << "ip+10u: " << ip+10u << std::endl; // new coordinates (110, 210)
 
  return 0;
}

Definition at line 236 of file vpImagePoint.cpp.

◆ operator+= [1/2]

VISP_EXPORT vpImagePoint operator+=	(	const vpImagePoint &	ip1,
		const vpImagePoint &	ip2
	)

friend

Returns a vpImagePoint which is the sum of and .

Definition at line 180 of file vpImagePoint.cpp.

◆ operator+=() [2/2]

VISP_EXPORT vpImagePoint operator+=	(	const vpImagePoint &	ip1,
		const vpImagePoint &	ip2
	)

Definition at line 180 of file vpImagePoint.cpp.

◆ operator- [1/8]

VISP_EXPORT vpImagePoint operator-	(	const vpImagePoint &	ip1,
		const vpImagePoint &	ip2
	)

friend

Returns a vpImagePoint which is the difference between and .

Definition at line 275 of file vpImagePoint.cpp.

◆ operator-() [2/8]

VISP_EXPORT vpImagePoint operator-	(	const vpImagePoint &	ip1,
		const vpImagePoint &	ip2
	)

Definition at line 275 of file vpImagePoint.cpp.

◆ operator- [3/8]

VISP_EXPORT vpImagePoint operator-	(	const vpImagePoint &	ip1,
		double	offset
	)

friend

Returns a vpImagePoint with an offset subtracted to the two coordinates.

#include <iostream>
#include <visp3/core/vpImagePoint.h>
 
#ifdef ENABLE_VISP_NAMESPACE
using namespace VISP_NAMESPACE_NAME;
#endif
 
int main()
{
  vpImagePoint ip(100, 200); // Create an image point with coordinates i=100, j=200
  std::cout << "ip: " << ip << std::endl; // coordinates (100, 200)
  std::cout << "ip-12.34: " << ip-12.34 << std::endl; // new coordinates (87.66, 187.66)
 
  return 0;
}

Definition at line 359 of file vpImagePoint.cpp.

◆ operator-() [4/8]

VISP_EXPORT vpImagePoint operator-	(	const vpImagePoint &	ip1,
		double	offset
	)

#include <iostream>
#include <visp3/core/vpImagePoint.h>
 
#ifdef ENABLE_VISP_NAMESPACE
using namespace VISP_NAMESPACE_NAME;
#endif
 
int main()
{
  vpImagePoint ip(100, 200); // Create an image point with coordinates i=100, j=200
  std::cout << "ip: " << ip << std::endl; // coordinates (100, 200)
  std::cout << "ip-12.34: " << ip-12.34 << std::endl; // new coordinates (87.66, 187.66)
 
  return 0;
}

Definition at line 359 of file vpImagePoint.cpp.

◆ operator- [5/8]

VISP_EXPORT vpImagePoint operator-	(	const vpImagePoint &	ip1,
		int	offset
	)

friend

Returns a vpImagePoint with an offset subtracted to the two coordinates.

#include <iostream>
#include <visp3/core/vpImagePoint.h>
 
#ifdef ENABLE_VISP_NAMESPACE
using namespace VISP_NAMESPACE_NAME;
#endif
 
int main()
{
  vpImagePoint ip(100, 200); // Create an image point with coordinates i=100, j=200
  std::cout << "ip: " << ip << std::endl; // coordinates (100, 200)
  std::cout << "ip-10: " << ip-10 << std::endl; // new coordinates (90, 190)
 
  return 0;
}

Definition at line 303 of file vpImagePoint.cpp.

◆ operator-() [6/8]

VISP_EXPORT vpImagePoint operator-	(	const vpImagePoint &	ip1,
		int	offset
	)

#include <iostream>
#include <visp3/core/vpImagePoint.h>
 
#ifdef ENABLE_VISP_NAMESPACE
using namespace VISP_NAMESPACE_NAME;
#endif
 
int main()
{
  vpImagePoint ip(100, 200); // Create an image point with coordinates i=100, j=200
  std::cout << "ip: " << ip << std::endl; // coordinates (100, 200)
  std::cout << "ip-10: " << ip-10 << std::endl; // new coordinates (90, 190)
 
  return 0;
}

Definition at line 303 of file vpImagePoint.cpp.

◆ operator- [7/8]

VISP_EXPORT vpImagePoint operator-	(	const vpImagePoint &	ip1,
		unsigned int	offset
	)

friend

Returns a vpImagePoint with an offset subtracted to the two coordinates.

#include <iostream>
#include <visp3/core/vpImagePoint.h>
 
#ifdef ENABLE_VISP_NAMESPACE
using namespace VISP_NAMESPACE_NAME;
#endif
 
int main()
{
  vpImagePoint ip(100, 200); // Create an image point with coordinates i=100, j=200
  std::cout << "ip: " << ip << std::endl; // coordinates (100, 200)
  std::cout << "ip-10u: " << ip-10u << std::endl; // new coordinates (90, 190)
 
  return 0;
}

Definition at line 331 of file vpImagePoint.cpp.

◆ operator-() [8/8]

VISP_EXPORT vpImagePoint operator-	(	const vpImagePoint &	ip1,
		unsigned int	offset
	)

#include <iostream>
#include <visp3/core/vpImagePoint.h>
 
#ifdef ENABLE_VISP_NAMESPACE
using namespace VISP_NAMESPACE_NAME;
#endif
 
int main()
{
  vpImagePoint ip(100, 200); // Create an image point with coordinates i=100, j=200
  std::cout << "ip: " << ip << std::endl; // coordinates (100, 200)
  std::cout << "ip-10u: " << ip-10u << std::endl; // new coordinates (90, 190)
 
  return 0;
}

Definition at line 331 of file vpImagePoint.cpp.

◆ operator/ [1/2]

VISP_EXPORT vpImagePoint operator/	(	const vpImagePoint &	ip1,
		double	scale
	)

friend

Returns a vpImagePoint with coordinates divided by a scale factor.

#include <iostream>
#include <visp3/core/vpImagePoint.h>
 
#ifdef ENABLE_VISP_NAMESPACE
using namespace VISP_NAMESPACE_NAME;
#endif
 
int main()
{
  vpImagePoint ip(100, 200); // Create an image point with coordinates i=100, j=200
  std::cout << "ip: " << ip << std::endl; // coordinates (100, 200)
  std::cout << "ip/2: " << ip/2 << std::endl; // new coordinates (50, 100)
 
  return 0;
}

Definition at line 415 of file vpImagePoint.cpp.

◆ operator/() [2/2]

VISP_EXPORT vpImagePoint operator/	(	const vpImagePoint &	ip1,
		double	scale
	)

#include <iostream>
#include <visp3/core/vpImagePoint.h>
 
#ifdef ENABLE_VISP_NAMESPACE
using namespace VISP_NAMESPACE_NAME;
#endif
 
int main()
{
  vpImagePoint ip(100, 200); // Create an image point with coordinates i=100, j=200
  std::cout << "ip: " << ip << std::endl; // coordinates (100, 200)
  std::cout << "ip/2: " << ip/2 << std::endl; // new coordinates (50, 100)
 
  return 0;
}

Definition at line 415 of file vpImagePoint.cpp.

◆ operator<< [1/2]

VISP_EXPORT std::ostream & operator<<	(	std::ostream &	os,
		const vpImagePoint &	ip
	)

friend

Writes the image point coordinates ip to the stream os, and returns a reference to the stream. Writes the first coordinate along the i axis and then the second one along the j axis. The coordinates are separated by a comma.

The following code

#include <iostream>
 
#include <visp3/core/vpImagePoint.h>
 
#ifdef ENABLE_VISP_NAMESPACE
using namespace VISP_NAMESPACE_NAME;
#endif
 
int main()
{
  vpImagePoint ip;
 
  ip.set_i(10);
  ip.set_j(11.1);
 
  std::cout << "Image point with coordinates: " << ip << std::endl;
 
  return 0;
}

produces the output:

Image point with coordinates: 10, 11.1

Definition at line 456 of file vpImagePoint.cpp.

◆ operator<<() [2/2]

VISP_EXPORT std::ostream & operator<<	(	std::ostream &	os,
		const vpImagePoint &	ip
	)

Writes the image point coordinates ip to the stream os, and returns a reference to the stream. Writes the first coordinate along the i axis and then the second one along the j axis. The coordinates are separated by a comma.

The following code

#include <iostream>
 
#include <visp3/core/vpImagePoint.h>
 
#ifdef ENABLE_VISP_NAMESPACE
using namespace VISP_NAMESPACE_NAME;
#endif
 
int main()
{
  vpImagePoint ip;
 
  ip.set_i(10);
  ip.set_j(11.1);
 
  std::cout << "Image point with coordinates: " << ip << std::endl;
 
  return 0;
}

produces the output:

Image point with coordinates: 10, 11.1

Definition at line 456 of file vpImagePoint.cpp.

◆ operator== [1/2]

VISP_EXPORT bool operator==	(	const vpImagePoint &	ip1,
		const vpImagePoint &	ip2
	)

friend

Returns true if ip1 and ip2 are equal; otherwire returns false.

Definition at line 135 of file vpImagePoint.cpp.

◆ operator==() [2/2]

VISP_EXPORT bool operator==	(	const vpImagePoint &	ip1,
		const vpImagePoint &	ip2
	)

Definition at line 135 of file vpImagePoint.cpp.

Public Member Functions

Static Public Member Functions

Friends

Related Functions

Detailed Description

Constructor & Destructor Documentation

◆ vpImagePoint() [1/3]

◆ vpImagePoint() [2/3]

◆ vpImagePoint() [3/3]

◆ ~vpImagePoint()

Member Function Documentation

◆ distance()

◆ get_i()

◆ get_j()

◆ get_u()

◆ get_v()

◆ getBBox()

◆ inRectangle()

◆ inSegment()

◆ nextInSegment()

◆ operator*=()

◆ operator+=()

◆ operator-=()

◆ operator/=()

◆ operator=()

◆ set_i()

◆ set_ij()

◆ set_j()

◆ set_u()

◆ set_uv()

◆ set_v()

◆ sqrDistance()

Friends And Related Function Documentation

◆ operator!= [1/2]

◆ operator!=() [2/2]

◆ operator* [1/2]

◆ operator*() [2/2]

◆ operator+ [1/8]

◆ operator+() [2/8]

◆ operator+ [3/8]

◆ operator+() [4/8]

◆ operator+ [5/8]

◆ operator+() [6/8]

◆ operator+ [7/8]

◆ operator+() [8/8]

◆ operator+= [1/2]

◆ operator+=() [2/2]

◆ operator- [1/8]

◆ operator-() [2/8]

◆ operator- [3/8]

◆ operator-() [4/8]

◆ operator- [5/8]

◆ operator-() [6/8]

◆ operator- [7/8]

◆ operator-() [8/8]

◆ operator/ [1/2]

◆ operator/() [2/2]

◆ operator<< [1/2]

◆ operator<<() [2/2]

◆ operator== [1/2]

◆ operator==() [2/2]