#include <vpHomogeneousMatrix.h>

Inheritance diagram for vpHomogeneousMatrix:

Public Member Functions
	vpHomogeneousMatrix ()

	vpHomogeneousMatrix (const vpHomogeneousMatrix &M)

	vpHomogeneousMatrix (const vpTranslationVector &t, const vpRotationMatrix &R)

	vpHomogeneousMatrix (const vpTranslationVector &t, const vpThetaUVector &tu)

	vpHomogeneousMatrix (const vpTranslationVector &t, const vpQuaternionVector &q)

	vpHomogeneousMatrix (const vpPoseVector &p)

	vpHomogeneousMatrix (const std::vector< float > &v)

	vpHomogeneousMatrix (const std::vector< double > &v)

	vpHomogeneousMatrix (double tx, double ty, double tz, double tux, double tuy, double tuz)

	vpHomogeneousMatrix (const std::initializer_list< double > &list)

virtual	~vpHomogeneousMatrix ()

void	buildFrom (const vpTranslationVector &t, const vpRotationMatrix &R)

void	buildFrom (const vpTranslationVector &t, const vpThetaUVector &tu)

void	buildFrom (const vpTranslationVector &t, const vpQuaternionVector &q)

void	buildFrom (const vpPoseVector &p)

void	buildFrom (const std::vector< float > &v)

void	buildFrom (const std::vector< double > &v)

void	buildFrom (double tx, double ty, double tz, double tux, double tuy, double tuz)

void	convert (std::vector< float > &M)

void	convert (std::vector< double > &M)

void	eye ()

vpColVector	getCol (unsigned int j) const

vpRotationMatrix	getRotationMatrix () const

vpThetaUVector	getThetaUVector () const

vpTranslationVector	getTranslationVector () const

vpHomogeneousMatrix	inverse () const

void	inverse (vpHomogeneousMatrix &Mi) const

bool	isAnHomogeneousMatrix () const

void	insert (const vpRotationMatrix &R)

void	insert (const vpThetaUVector &tu)

void	insert (const vpTranslationVector &t)

void	insert (const vpQuaternionVector &t)

void	extract (vpRotationMatrix &R) const

void	extract (vpThetaUVector &tu) const

void	extract (vpTranslationVector &t) const

void	extract (vpQuaternionVector &q) const

void	load (std::ifstream &f)

void	save (std::ofstream &f) const

vpHomogeneousMatrix &	operator= (const vpHomogeneousMatrix &M)

vpHomogeneousMatrix	operator* (const vpHomogeneousMatrix &M) const

vpHomogeneousMatrix &	operator*= (const vpHomogeneousMatrix &M)

vpColVector	operator* (const vpColVector &v) const

vpTranslationVector	operator* (const vpTranslationVector &t) const

vpPoint	operator* (const vpPoint &bP) const

vpHomogeneousMatrix &	operator<< (double val)

vpHomogeneousMatrix &	operator, (double val)

void	print () const

void	resize (unsigned int nrows, unsigned int ncols, bool flagNullify=true)

Deprecated functions
vp_deprecated void	init ()

vp_deprecated void	setIdentity ()

Inherited functionalities from vpArray2D
unsigned int	getCols () const

double	getMaxValue () const

double	getMinValue () const

unsigned int	getRows () const

unsigned int	size () const

void	resize (unsigned int nrows, unsigned int ncols, bool flagNullify=true, bool recopy_=true)

void	reshape (unsigned int nrows, unsigned int ncols)

bool	operator== (const vpArray2D< double > &A) const

bool	operator!= (const vpArray2D< double > &A) const

double *	operator[] (unsigned int i)

double *	operator[] (unsigned int i) const

vpArray2D< double >	hadamard (const vpArray2D< double > &m) const

Static Public Member Functions
static vpHomogeneousMatrix	mean (const std::vector< vpHomogeneousMatrix > &vec_M)

Inherited I/O from vpArray2D with Static Public Member Functions
static bool	load (const std::string &filename, vpArray2D< double > &A, bool binary=false, char *header=NULL)

static bool	loadYAML (const std::string &filename, vpArray2D< double > &A, char *header=NULL)

static bool	save (const std::string &filename, const vpArray2D< double > &A, bool binary=false, const char *header="")

static bool	saveYAML (const std::string &filename, const vpArray2D< double > &A, const char *header="")

Public Attributes
double *	data

Protected Attributes
unsigned int	m_index

unsigned int	rowNum

unsigned int	colNum

double **	rowPtrs

unsigned int	dsize

Related Functions
(Note that these are not member functions.)
enum	vpGEMMmethod

Detailed Description

Implementation of an homogeneous matrix and operations on such kind of matrices.

The class provides a data structure for the homogeneous matrices as well as a set of operations on these matrices.

The vpHomogeneousMatrix class is derived from vpArray2D<double>.

An homogeneous matrix is 4x4 matrix defines as

$^a{\bf M}_b = \left(\begin{array}{cc} ^a{\bf R}_b & ^a{\bf t}_b \\ {\bf 0}_{1\times 3} & 1 \end{array} \right)$

that defines the position of frame b in frame a

$^a{\bf R}_b$ is a rotation matrix and $^a{\bf t}_b$ is a translation vector.

There are different ways to initialize an homogeneous matrix. You can set each element of the matrix like:

#include <visp3/core/vpHomogeneousMatrix.h>
int main()
{
  vpHomogeneousMatrix M;
  M[0][0] =  0; M[0][1] =  0; M[0][2] = -1; M[0][3] = 0.1;
  M[1][0] =  0; M[1][1] = -1; M[1][2] =  0; M[1][3] = 0.2;
  M[2][0] = -1; M[2][1] =  0; M[2][2] =  0; M[2][3] = 0.3;
  std::cout << "M:" << std::endl;
  for (unsigned int i = 0; i < M.getRows(); i++) {
    for (unsigned int j = 0; j < M.getCols(); j++) {
      std::cout << M[i][j] << " ";
    }
    std::cout << std::endl;
  }
}

It produces the following printings:

You can also use vpRotationMatrix::operator<< and vpTranslationVector::operator<< like:

#include <visp3/core/vpHomogeneousMatrix.h>
int main()
{
  vpTranslationVector t;
  vpRotationMatrix R;
  R << 0, 0, -1,
       0, -1, 0,
       -1, 0, 0;
  t << 0.1, 0.2, 0.3;
  vpHomogeneousMatrix M(t, R);
  std::cout << "M:\n" << M << std::endl;
}

If ViSP is build with c++11 enabled, you can do the same using:

#include <visp3/core/vpHomogeneousMatrix.h>
int main()
{
#if (VISP_CXX_STANDARD >= VISP_CXX_STANDARD_11)
  {
    vpHomogeneousMatrix M( vpTranslationVector(0.1, 0.2, 0.3), vpRotationMatrix( {0, 0, -1, 0, -1, 0, -1, 0, 0} ) );
    std::cout << "M:\n" << M << std::endl;
  }
  {
    vpHomogeneousMatrix M { 0,  0, -1, 0.1,
                            0, -1,  0, 0.2,
                           -1,  0,  0, 0.3 };
    std::cout << "M:\n" << M << std::endl;
  }
#endif
}

Examples:: AROgre.cpp, AROgreBasic.cpp, calibrate-hand-eye.cpp, exponentialMap.cpp, grabRealSense2_T265.cpp, HelloWorldOgre.cpp, HelloWorldOgreAdvanced.cpp, homographyHartleyDLT2DObject.cpp, homographyHLM2DObject.cpp, homographyHLM3DObject.cpp, homographyRansac2DObject.cpp, manGeometricFeatures.cpp, manServo4PointsDisplay.cpp, manServoMomentsSimple.cpp, manSimu4Dots.cpp, manSimu4Points.cpp, mbot-apriltag-2D-half-vs.cpp, mbot-apriltag-ibvs.cpp, mbot-apriltag-pbvs.cpp, mbtEdgeKltTracking.cpp, mbtEdgeTracking.cpp, mbtGenericTracking.cpp, mbtGenericTracking2.cpp, mbtGenericTrackingDepth.cpp, mbtGenericTrackingDepthOnly.cpp, mbtKltTracking.cpp, photometricVisualServoing.cpp, photometricVisualServoingWithoutVpServo.cpp, poseVirtualVS.cpp, servoAfma4Point2DArtVelocity.cpp, servoAfma62DhalfCamVelocity.cpp, servoAfma6Cylinder2DCamVelocity.cpp, servoAfma6Cylinder2DCamVelocitySecondaryTask.cpp, servoAfma6FourPoints2DCamVelocityLs_cur.cpp, servoAfma6FourPoints2DCamVelocityLs_des.cpp, servoAfma6Line2DCamVelocity.cpp, servoAfma6Point2DArtVelocity.cpp, servoAfma6Points2DCamVelocityEyeToHand.cpp, servoAfma6SquareLines2DCamVelocity.cpp, servoAfma6TwoLines2DCamVelocity.cpp, servoBebop2.cpp, servoBiclopsPoint2DArtVelocity.cpp, servoFlirPtuIBVS.cpp, servoFrankaIBVS.cpp, servoFrankaPBVS.cpp, servoMomentImage.cpp, servoMomentPoints.cpp, servoMomentPolygon.cpp, servoPioneerPanSegment3D.cpp, servoPtu46Point2DArtVelocity.cpp, servoSimu3D_cdMc_CamVelocity.cpp, servoSimu3D_cdMc_CamVelocityWithoutVpServo.cpp, servoSimu3D_cMcd_CamVelocity.cpp, servoSimu3D_cMcd_CamVelocityWithoutVpServo.cpp, servoSimu4Points.cpp, servoSimuAfma6FourPoints2DCamVelocity.cpp, servoSimuCircle2DCamVelocity.cpp, servoSimuCircle2DCamVelocityDisplay.cpp, servoSimuCylinder.cpp, servoSimuCylinder2DCamVelocityDisplay.cpp, servoSimuCylinder2DCamVelocityDisplaySecondaryTask.cpp, servoSimuFourPoints2DCamVelocity.cpp, servoSimuFourPoints2DCamVelocityDisplay.cpp, servoSimuFourPoints2DPolarCamVelocityDisplay.cpp, servoSimuLine2DCamVelocityDisplay.cpp, servoSimuPoint2DCamVelocity1.cpp, servoSimuPoint2DCamVelocity2.cpp, servoSimuPoint2DCamVelocity3.cpp, servoSimuPoint2DhalfCamVelocity1.cpp, servoSimuPoint2DhalfCamVelocity2.cpp, servoSimuPoint2DhalfCamVelocity3.cpp, servoSimuPoint3DCamVelocity.cpp, servoSimuSphere.cpp, servoSimuSphere2DCamVelocity.cpp, servoSimuSphere2DCamVelocityDisplay.cpp, servoSimuSphere2DCamVelocityDisplaySecondaryTask.cpp, servoSimuSquareLine2DCamVelocityDisplay.cpp, servoSimuThetaUCamVelocity.cpp, servoSimuViper850FourPoints2DCamVelocity.cpp, servoViper650FourPoints2DArtVelocityLs_cur.cpp, servoViper650FourPoints2DCamVelocityLs_cur-SR300.cpp, servoViper650FourPoints2DCamVelocityLs_cur.cpp, servoViper850FourPoints2DArtVelocityLs_cur.cpp, servoViper850FourPoints2DCamVelocityLs_cur.cpp, servoViper850FourPointsKinect.cpp, servoViper850Point2DArtVelocity.cpp, simulateCircle2DCamVelocity.cpp, simulateFourPoints2DCartesianCamVelocity.cpp, simulateFourPoints2DPolarCamVelocity.cpp, testAprilTag.cpp, testDisplacement.cpp, testDisplays.cpp, testEigenConversion.cpp, testFeatureSegment.cpp, testFindMatch.cpp, testFrankaCartVelocity-3.cpp, testFrankaGetPose.cpp, testGenericTracker.cpp, testGenericTrackerDepth.cpp, testImageDraw.cpp, testKeyPoint-2.cpp, testKeyPoint-4.cpp, testPose.cpp, testPoseFeatures.cpp, testPoseRansac.cpp, testPoseVector.cpp, testRealSense2_T265_images_odometry.cpp, testRealSense2_T265_images_odometry_async.cpp, testRealSense2_T265_odometry.cpp, testRobotAfma6Pose.cpp, testRobotViper650-frames.cpp, testRobotViper850-frames.cpp, testRobotViper850.cpp, testRobotViper850Pose.cpp, testViper650.cpp, testViper850.cpp, testVirtuoseAfma6.cpp, testVirtuoseHapticBox.cpp, testVirtuoseWithGlove.cpp, tutorial-apriltag-detector-live-rgbd-realsense.cpp, tutorial-chessboard-pose.cpp, tutorial-detection-object-mbt-deprecated.cpp, tutorial-detection-object-mbt.cpp, tutorial-detection-object-mbt2-deprecated.cpp, tutorial-detection-object-mbt2.cpp, tutorial-flir-ptu-ibvs.cpp, tutorial-hand-eye-calibration.cpp, tutorial-homography-from-points.cpp, tutorial-ibvs-4pts-display.cpp, tutorial-ibvs-4pts-image-tracking.cpp, tutorial-ibvs-4pts-ogre-tracking.cpp, tutorial-ibvs-4pts-ogre.cpp, tutorial-ibvs-4pts-plotter-continuous-gain-adaptive.cpp, tutorial-ibvs-4pts-plotter-gain-adaptive.cpp, tutorial-ibvs-4pts-plotter.cpp, tutorial-ibvs-4pts-wireframe-camera.cpp, tutorial-ibvs-4pts-wireframe-robot-afma6.cpp, tutorial-ibvs-4pts-wireframe-robot-viper.cpp, tutorial-ibvs-4pts.cpp, tutorial-image-simulator.cpp, tutorial-mb-edge-tracker.cpp, tutorial-mb-generic-tracker-apriltag-rs2.cpp, tutorial-mb-generic-tracker-apriltag-webcam.cpp, tutorial-mb-generic-tracker-full.cpp, tutorial-mb-generic-tracker-live.cpp, tutorial-mb-generic-tracker-rgbd-blender.cpp, tutorial-mb-generic-tracker-rgbd-realsense.cpp, tutorial-mb-generic-tracker-rgbd.cpp, tutorial-mb-generic-tracker-stereo-mono.cpp, tutorial-mb-generic-tracker-stereo.cpp, tutorial-mb-generic-tracker.cpp, tutorial-mb-hybrid-tracker.cpp, tutorial-mb-klt-tracker.cpp, tutorial-mb-tracker-full.cpp, tutorial-mb-tracker.cpp, tutorial-pose-from-points-image.cpp, tutorial-pose-from-points-live.cpp, tutorial-pose-from-points-realsense-T265.cpp, tutorial-pose-from-qrcode-image.cpp, tutorial-simu-pioneer-continuous-gain-adaptive.cpp, tutorial-simu-pioneer-continuous-gain-constant.cpp, tutorial-simu-pioneer-pan.cpp, tutorial-simu-pioneer.cpp, and wireframeSimulator.cpp.

Definition at line 157 of file vpHomogeneousMatrix.h.

Constructor & Destructor Documentation

vpHomogeneousMatrix::vpHomogeneousMatrix ( )

Default constructor that initialize an homogeneous matrix as identity.

Definition at line 66 of file vpHomogeneousMatrix.cpp.

References eye().

vpHomogeneousMatrix::vpHomogeneousMatrix ( const vpHomogeneousMatrix & M )

Copy constructor that initialize an homogeneous matrix from another homogeneous matrix.

Definition at line 72 of file vpHomogeneousMatrix.cpp.

vpHomogeneousMatrix::vpHomogeneousMatrix	(	const vpTranslationVector &	t,
		const vpRotationMatrix &	R
	)

Construct an homogeneous matrix from a translation vector and a rotation matrix.

Definition at line 89 of file vpHomogeneousMatrix.cpp.

References insert().

vpHomogeneousMatrix::vpHomogeneousMatrix	(	const vpTranslationVector &	t,
		const vpThetaUVector &	tu
	)

Construct an homogeneous matrix from a translation vector and $\theta {\bf u}$ rotation vector.

Definition at line 78 of file vpHomogeneousMatrix.cpp.

References buildFrom().

vpHomogeneousMatrix::vpHomogeneousMatrix	(	const vpTranslationVector &	t,
		const vpQuaternionVector &	q
	)

Construct an homogeneous matrix from a translation vector and quaternion rotation vector.

Definition at line 56 of file vpHomogeneousMatrix.cpp.

References buildFrom().

vpHomogeneousMatrix::vpHomogeneousMatrix ( const vpPoseVector & p )

explicit

Construct an homogeneous matrix from a pose vector.

Definition at line 100 of file vpHomogeneousMatrix.cpp.

References buildFrom().

vpHomogeneousMatrix::vpHomogeneousMatrix ( const std::vector< float > & v )

explicit

Construct an homogeneous matrix from a vector of float.

Parameters

v	: Vector of 12 or 16 values corresponding to the values of the homogeneous matrix.

The following example shows how to use this function:

#include <visp3/core/vpHomogeneousMatrix.h>
int main()
{
  std::vector<float> v(12, 0);
  v[1]  = -1.; // ry=-90
  v[4]  =  1.; // rx=90
  v[10] = -1.; // rz=-90
  v[3]  = 0.3; // tx
  v[7]  = 0.4; // ty
  v[11] = 0.5; // tz
  std::cout << "v: ";
  for(unsigned int i=0; i<v.size(); i++)
    std::cout << v[i] << " ";
  std::cout << std::endl;
  vpHomogeneousMatrix M(v);
  std::cout << "M:\n" << M << std::endl;
}

It produces the following printings:

v: 0 -1 0 0.3 1 0 0 0.4 0 0 -1 0.5
M:
0  -1  0  0.3000000119
1  0  0  0.400000006
0  0  -1  0.5
0  0  0  1

Definition at line 145 of file vpHomogeneousMatrix.cpp.

References buildFrom().

vpHomogeneousMatrix::vpHomogeneousMatrix ( const std::vector< double > & v )

explicit

Construct an homogeneous matrix from a vector of double.

Parameters

v	: Vector of 12 or 16 values corresponding to the values of the homogeneous matrix.

The following example shows how to use this function:

#include <visp3/core/vpHomogeneousMatrix.h>
int main()
{
  std::vector<double> v(12, 0);
  v[1]  = -1.; // ry=-90
  v[4]  =  1.; // rx=90
  v[10] = -1.; // rz=-90
  v[3]  = 0.3; // tx
  v[7]  = 0.4; // ty
  v[11] = 0.5; // tz
  std::cout << "v: ";
  for(unsigned int i=0; i<v.size(); i++)
    std::cout << v[i] << " ";
  std::cout << std::endl;
  vpHomogeneousMatrix M(v);
  std::cout << "M:\n" << M << std::endl;
}

It produces the following printings:

v: 0 -1 0 0.3 1 0 0 0.4 0 0 -1 0.5
M:
0  -1  0  0.3
1  0  0  0.4
0  0  -1  0.5
0  0  0  1

Definition at line 261 of file vpHomogeneousMatrix.cpp.

References buildFrom().

vpHomogeneousMatrix::vpHomogeneousMatrix	(	double	tx,
		double	ty,
		double	tz,
		double	tux,
		double	tuy,
		double	tuz
	)

Construct an homogeneous matrix from a translation vector ${\bf t}=(t_x, t_y, t_z)^T$ and a $\theta {\bf u}=(\theta u_x, \theta u_y, \theta u_z)^T$ rotation vector.

Definition at line 272 of file vpHomogeneousMatrix.cpp.

References buildFrom().

vpHomogeneousMatrix::vpHomogeneousMatrix ( const std::initializer_list< double > & list )

Construct an homogeneous matrix from a list of 12 or 16 double values.

Parameters

list

: List of double. The following code shows how to use this constructor to initialize an homogeneous matrix:

#include <visp3/core/vpHomogeneousMatrix.h>
int main()
{
#if (VISP_CXX_STANDARD >= VISP_CXX_STANDARD_11)
  vpHomogeneousMatrix M {
    0, 0, 1, 0.1,
    0, 1, 0, 0.2,
    1, 0, 0, 0.3 };
  std::cout << "M:\n" << M << std::endl;
  vpHomogeneousMatrix N {
    0, 0, 1, 0.1,
    0, 1, 0, 0.2,
    1, 0, 0, 0.3,
    0, 0, 0, 1 };
  std::cout << "N:\n" << N << std::endl;
#endif
}

It produces the following output:

Definition at line 190 of file vpHomogeneousMatrix.cpp.

References vpArray2D< double >::data, vpException::fatalError, and isAnHomogeneousMatrix().

virtual vpHomogeneousMatrix::~vpHomogeneousMatrix ( )

inlinevirtual

Destructor.

Definition at line 175 of file vpHomogeneousMatrix.h.

References vpArray2D< Type >::load(), operator*(), vpArray2D< Type >::operator<<, vpArray2D< Type >::operator=(), and vpArray2D< Type >::save().

Member Function Documentation

void vpHomogeneousMatrix::buildFrom	(	const vpTranslationVector &	t,
		const vpRotationMatrix &	R
	)

Build an homogeneous matrix from a translation vector and a rotation matrix.

Examples:: calibrate-hand-eye.cpp, mbtEdgeKltTracking.cpp, mbtEdgeTracking.cpp, mbtGenericTracking.cpp, mbtGenericTracking2.cpp, mbtGenericTrackingDepth.cpp, mbtGenericTrackingDepthOnly.cpp, mbtKltTracking.cpp, photometricVisualServoing.cpp, photometricVisualServoingWithoutVpServo.cpp, servoAfma6FourPoints2DCamVelocityLs_cur.cpp, servoAfma6FourPoints2DCamVelocityLs_des.cpp, servoFlirPtuIBVS.cpp, servoSimu3D_cdMc_CamVelocity.cpp, servoSimu3D_cMcd_CamVelocity.cpp, servoSimu4Points.cpp, servoSimuPoint2DhalfCamVelocity1.cpp, servoSimuPoint2DhalfCamVelocity2.cpp, servoSimuPoint2DhalfCamVelocity3.cpp, servoSimuSphere.cpp, servoSimuThetaUCamVelocity.cpp, servoViper850FourPoints2DArtVelocityLs_cur.cpp, servoViper850FourPoints2DCamVelocityLs_cur.cpp, servoViper850FourPointsKinect.cpp, testKeyPoint-2.cpp, testRealSense2_T265_images_odometry_async.cpp, testRobotAfma6Pose.cpp, testRobotViper650-frames.cpp, testRobotViper850-frames.cpp, testRobotViper850Pose.cpp, and tutorial-flir-ptu-ibvs.cpp.

Definition at line 293 of file vpHomogeneousMatrix.cpp.

References insert().

Referenced by vpHomography::buildFrom(), vpViper650::init(), vpViper850::init(), vpAfma6::init(), vpSimulatorAfma6::init(), vpSimulatorViper850::init(), vpMbTracker::initClick(), vpMbTracker::initFromPose(), vpMbTracker::loadCAOModel(), vpWireFrameSimulator::navigation(), vpAfma6::parseConfigFile(), vpPioneerPan::set_cMe(), vpViper::set_eMc(), vpWireFrameSimulator::setExternalCameraPosition(), vpSimulatorPioneer::setVelocity(), vpSimulatorPioneerPan::setVelocity(), vpAfma4::vpAfma4(), vpHomogeneousMatrix(), vpKinect::vpKinect(), and vpWireFrameSimulator::vpWireFrameSimulator().

void vpHomogeneousMatrix::buildFrom	(	const vpTranslationVector &	t,
		const vpThetaUVector &	tu
	)

Build an homogeneous matrix from a translation vector and a $\theta {\bf u}$ rotation vector.

Definition at line 283 of file vpHomogeneousMatrix.cpp.

References insert().

void vpHomogeneousMatrix::buildFrom	(	const vpTranslationVector &	t,
		const vpQuaternionVector &	q
	)

Build an homogeneous matrix from a translation vector and a quaternion rotation vector.

Definition at line 315 of file vpHomogeneousMatrix.cpp.

References insert().

void vpHomogeneousMatrix::buildFrom ( const vpPoseVector & p )

Build an homogeneous matrix from a pose vector.

Definition at line 302 of file vpHomogeneousMatrix.cpp.

References insert().

void vpHomogeneousMatrix::buildFrom ( const std::vector< float > & v )

Build an homogeneous matrix from a vector of float.

Parameters

v	: Vector of 12 or 16 values corresponding to the values of the homogeneous matrix.

The following example shows how to use this function:

#include <visp3/core/vpHomogeneousMatrix.h>
int main()
{
  std::vector<float> v(12, 0);
  v[1]  = -1.; // ry=-90
  v[4]  =  1.; // rx=90
  v[10] = -1.; // rz=-90
  v[3]  = 0.3; // tx
  v[7]  = 0.4; // ty
  v[11] = 0.5; // tz
  std::cout << "v: ";
  for(unsigned int i=0; i<v.size(); i++)
    std::cout << v[i] << " ";
  std::cout << std::endl;
  vpHomogeneousMatrix M;
  M.buildFrom(v);
  std::cout << "M:\n" << M << std::endl;
}

It produces the following printings:

v: 0 -1 0 0.3 1 0 0 0.4 0 0 -1 0.5
M:
0  -1  0  0.3000000119
1  0  0  0.400000006
0  0  -1  0.5
0  0  0  1

Definition at line 375 of file vpHomogeneousMatrix.cpp.

References vpArray2D< double >::data, and vpException::dimensionError.

void vpHomogeneousMatrix::buildFrom ( const std::vector< double > & v )

Build an homogeneous matrix from a vector of double.

Parameters

v	: Vector of 12 or 16 values corresponding to the values of the homogeneous matrix.

The following example shows how to use this function:

#include <visp3/core/vpHomogeneousMatrix.h>
int main()
{
  std::vector<double> v(12, 0);
  v[1]  = -1.; // ry=-90
  v[4]  =  1.; // rx=90
  v[10] = -1.; // rz=-90
  v[3]  = 0.3; // tx
  v[7]  = 0.4; // ty
  v[11] = 0.5; // tz
  std::cout << "v: ";
  for(unsigned int i=0; i<v.size(); i++)
    std::cout << v[i] << " ";
  std::cout << std::endl;
  vpHomogeneousMatrix M;
  M.buildFrom(v);
  std::cout << "M:\n" << M << std::endl;
}

It produces the following printings:

v: 0 -1 0 0.3 1 0 0 0.4 0 0 -1 0.5
M:
0  -1  0  0.3
1  0  0  0.4
0  0  -1  0.5
0  0  0  1

Definition at line 425 of file vpHomogeneousMatrix.cpp.

References vpArray2D< double >::data, and vpException::dimensionError.

void vpHomogeneousMatrix::buildFrom	(	double	tx,
		double	ty,
		double	tz,
		double	tux,
		double	tuy,
		double	tuz
	)

Build an homogeneous matrix from a translation vector ${\bf t}=(t_x, t_y, t_z)^T$ and a $\theta {\bf u}=(\theta u_x, \theta u_y, \theta u_z)^T$ rotation vector.

Definition at line 326 of file vpHomogeneousMatrix.cpp.

References insert().

void vpHomogeneousMatrix::convert ( std::vector< float > & M )

Converts an homogeneous matrix to a vector of 12 floats.

Parameters

M	: Converted matrix.

Definition at line 936 of file vpHomogeneousMatrix.cpp.

References vpArray2D< double >::data.

Referenced by vpHomography::inverse().

void vpHomogeneousMatrix::convert ( std::vector< double > & M )

Converts an homogeneous matrix to a vector of 12 doubles.

Parameters

M	: Converted matrix.

Definition at line 947 of file vpHomogeneousMatrix.cpp.

References vpArray2D< double >::data.

void vpHomogeneousMatrix::extract ( vpRotationMatrix & R ) const

Extract the rotational matrix from the homogeneous matrix.

Parameters

R	: rotational component as a rotation matrix.

Examples:: calibrate-hand-eye.cpp, exponentialMap.cpp, servoAfma6FourPoints2DCamVelocityLs_cur.cpp, servoSimu3D_cdMc_CamVelocityWithoutVpServo.cpp, servoSimu3D_cMcd_CamVelocityWithoutVpServo.cpp, servoViper850FourPoints2DArtVelocityLs_cur.cpp, servoViper850FourPoints2DCamVelocityLs_cur.cpp, servoViper850FourPointsKinect.cpp, testRobotAfma6Pose.cpp, testRobotViper650-frames.cpp, testRobotViper850-frames.cpp, testRobotViper850.cpp, testRobotViper850Pose.cpp, testViper650.cpp, and testViper850.cpp.

Definition at line 723 of file vpHomogeneousMatrix.cpp.

Referenced by vpTranslationVector::buildFrom(), vpPoseVector::buildFrom(), vpThetaUVector::buildFrom(), vpFeatureThetaU::buildFrom(), vpPose::calculArbreDementhon(), vpMatrix::computeCovarianceMatrixVVS(), vpMbtDistanceKltPoints::computeHomography(), vpMbHiddenFaces< PolygonType >::computeScanLineQuery(), vpViper::get_eJe(), vpViper::get_fJe(), vpRobotAfma6::getDisplacement(), vpSimulatorCamera::getPosition(), vpRobotCamera::getPosition(), vpSimulatorPioneer::getPosition(), vpSimulatorPioneerPan::getPosition(), vpSimulatorAfma6::getPosition(), vpRobotAfma4::getPosition(), vpSimulatorViper850::getPosition(), vpRobotAfma6::getPosition(), vpRobotViper650::getPosition(), vpRobotViper850::getPosition(), getRotationMatrix(), getThetaUVector(), getTranslationVector(), vpRobotAfma6::getVelocity(), vpRobotViper650::getVelocity(), vpRobotViper850::getVelocity(), vpExponentialMap::inverse(), inverse(), isAnHomogeneousMatrix(), operator*(), vpPose::poseDementhonNonPlan(), vpPose::poseDementhonPlan(), vpPose::poseLowe(), vpViper::set_eMc(), vpImageSimulator::setCameraPosition(), vpWireFrameSimulator::setExternalCameraPosition(), vpMbKltTracker::setPose(), vpAROgre::setPosition(), vpSimulatorAfma6::setPosition(), vpRobotAfma4::setVelocity(), vpFeatureThetaU::vpFeatureThetaU(), and vpTranslationVector::vpTranslationVector().

void vpHomogeneousMatrix::extract ( vpThetaUVector & tu ) const

Extract the rotation as a $\theta \bf u$ vector.

Definition at line 742 of file vpHomogeneousMatrix.cpp.

References vpThetaUVector::buildFrom().

void vpHomogeneousMatrix::extract ( vpTranslationVector & t ) const

Extract the translation vector from the homogeneous matrix.

Definition at line 733 of file vpHomogeneousMatrix.cpp.

void vpHomogeneousMatrix::extract ( vpQuaternionVector & q ) const

Extract the rotation as a quaternion.

Definition at line 752 of file vpHomogeneousMatrix.cpp.

References vpQuaternionVector::buildFrom().

void vpHomogeneousMatrix::eye ( )

vpColVector vpHomogeneousMatrix::getCol ( unsigned int j ) const

Extract a column vector from an homogeneous matrix.

Warning: All the indexes start from 0 in this function.

Parameters

j	: Index of the column to extract. If j=0, the first column is extracted.

Returns: The extracted column vector.

The following example shows how to use this function:

#include <visp3/core/vpColVector.h>
#include <visp3/core/vpHomogeneousMatrix.h>
int main()
{
  vpHomogeneousMatrix M;
  vpColVector t = M.getCol(3);
  std::cout << "Last column: \n" << t << std::endl;
}

It produces the following output:

Last column:
0
0
1
0

Definition at line 1013 of file vpHomogeneousMatrix.cpp.

References vpException::dimensionError, vpArray2D< double >::getCols(), and vpArray2D< double >::getRows().

unsigned int vpArray2D< double >::getCols ( ) const

inlineinherited

Return the number of columns of the 2D array.

See also: getRows(), size()

Examples:: servoViper850Point2DArtVelocity-jointAvoidance-basic.cpp, testAprilTag.cpp, testColVector.cpp, testDisplacement.cpp, testImageFilter.cpp, testMatrix.cpp, testMatrixConditionNumber.cpp, testMatrixConvolution.cpp, testMatrixDeterminant.cpp, testMatrixInitialization.cpp, testMatrixInverse.cpp, testMatrixPseudoInverse.cpp, testPoseVector.cpp, testRowVector.cpp, testSvd.cpp, testTranslationVector.cpp, and tutorial-matlab.cpp.

Definition at line 279 of file vpArray2D.h.

References vpArray2D< Type >::colNum, vpArray2D< Type >::getMaxValue(), and vpArray2D< Type >::getMinValue().

Referenced by vpMatrix::cond(), vpRowVector::cppPrint(), vpMatrix::cppPrint(), vpRowVector::csvPrint(), vpMatrix::csvPrint(), vpMatrix::detByLUEigen3(), vpMatrix::extract(), vpRotationMatrix::getCol(), getCol(), vpMatrix::getCol(), vpMatrix::inducedL2Norm(), vpMatrix::inverseByLUEigen3(), vpMatrix::inverseByQRLapack(), vpRotationMatrix::isARotationMatrix(), vpMatrix::kernel(), vpRowVector::maplePrint(), vpMatrix::maplePrint(), vpRowVector::matlabPrint(), vpMatrix::matlabPrint(), vpMatrix::nullSpace(), vpRowVector::operator*(), vpRowVector::operator+(), vpRowVector::operator+=(), vpRowVector::operator-(), vpRowVector::operator-=(), vpForceTwistMatrix::print(), vpVelocityTwistMatrix::print(), vpRowVector::print(), vpMatrix::print(), vpMatrix::pseudoInverse(), vpMatrix::row(), vpMatrix::svdEigen3(), vpMatrix::svdLapack(), and vpMatrix::svdOpenCV().

double vpArray2D< double >::getMaxValue ( ) const

inherited

Return the array max value.

Examples:: servoMomentImage.cpp, and testArray2D.cpp.

double vpArray2D< double >::getMinValue ( ) const

inherited

Return the array min value.

Examples:: servoMomentImage.cpp, and testArray2D.cpp.

vpRotationMatrix vpHomogeneousMatrix::getRotationMatrix ( ) const

Return the rotation matrix from the homogeneous transformation matrix.

Examples:: calibrate-hand-eye.cpp, testRobotViper650-frames.cpp, testRobotViper850-frames.cpp, testVirtuoseAfma6.cpp, tutorial-hand-eye-calibration.cpp, and tutorial-pose-from-qrcode-image.cpp.

Definition at line 967 of file vpHomogeneousMatrix.cpp.

References extract().

Referenced by vpForceTwistMatrix::buildFrom(), vpVelocityTwistMatrix::buildFrom(), vpRobotBebop2::setPosition(), vpForceTwistMatrix::vpForceTwistMatrix(), and vpVelocityTwistMatrix::vpVelocityTwistMatrix().

unsigned int vpArray2D< double >::getRows ( ) const

inlineinherited

Return the number of rows of the 2D array.

See also: getCols(), size()

Examples:: mbtGenericTrackingDepth.cpp, mbtGenericTrackingDepthOnly.cpp, testAprilTag.cpp, testColVector.cpp, testDisplacement.cpp, testGenericTracker.cpp, testGenericTrackerDepth.cpp, testImageFilter.cpp, testMatrix.cpp, testMatrixConditionNumber.cpp, testMatrixConvolution.cpp, testMatrixDeterminant.cpp, testMatrixInitialization.cpp, testMatrixInverse.cpp, testMatrixPseudoInverse.cpp, testPoseVector.cpp, testRowVector.cpp, testSvd.cpp, testTranslationVector.cpp, and tutorial-matlab.cpp.

Definition at line 289 of file vpArray2D.h.

References vpArray2D< Type >::rowNum.

Referenced by vpMatrix::column(), vpMatrix::cond(), vpColVector::cppPrint(), vpMatrix::cppPrint(), vpColVector::csvPrint(), vpMatrix::csvPrint(), vpMatrix::detByLUEigen3(), vpMatrix::extract(), vpRotationMatrix::getCol(), getCol(), vpMatrix::getCol(), vpMatrix::inducedL2Norm(), vpMatrix::inverseByCholeskyLapack(), vpMatrix::inverseByLUEigen3(), vpMatrix::inverseByQRLapack(), vpRotationMatrix::isARotationMatrix(), vpMatrix::kernel(), vpColVector::maplePrint(), vpMatrix::maplePrint(), vpColVector::matlabPrint(), vpMatrix::matlabPrint(), vpMatrix::nullSpace(), vpColVector::operator+(), vpColVector::operator+=(), vpColVector::operator-(), vpColVector::operator-=(), vpForceTwistMatrix::print(), vpVelocityTwistMatrix::print(), vpPoseVector::print(), vpColVector::print(), vpMatrix::print(), vpMatrix::pseudoInverse(), vpMatrix::svdEigen3(), vpMatrix::svdLapack(), and vpMatrix::svdOpenCV().

vpThetaUVector vpHomogeneousMatrix::getThetaUVector ( ) const

Return the $\theta {\bf u}$ vector that corresponds to the rotation part of the homogeneous transformation.

Examples:: servoFrankaPBVS.cpp.

Definition at line 978 of file vpHomogeneousMatrix.cpp.

References extract().

vpTranslationVector vpHomogeneousMatrix::getTranslationVector ( ) const

Return the translation vector from the homogeneous transformation matrix.

Examples:: servoFrankaPBVS.cpp, testRobotViper650-frames.cpp, testRobotViper850-frames.cpp, and tutorial-pose-from-qrcode-image.cpp.

Definition at line 957 of file vpHomogeneousMatrix.cpp.

References extract().

Referenced by vpForceTwistMatrix::buildFrom(), vpVelocityTwistMatrix::buildFrom(), mean(), vpAfma6::set_eMc(), and vpRobotBebop2::setPosition().

vpArray2D<double > vpArray2D< double >::hadamard ( const vpArray2D< double > & m ) const

inherited

Compute the Hadamard product (element wise matrix multiplication).

Parameters

m	: Second matrix;

Returns: m1.hadamard(m2) The Hadamard product : $m1 \circ m2 = (m1 \circ m2)_{i,j} = (m1)_{i,j} (m2)_{i,j}$

Examples:: testArray2D.cpp.

vp_deprecated void vpHomogeneousMatrix::init ( )

inline

Deprecated:: Provided only for compat with previous releases. This function does nothing.

Examples:: HelloWorldOgreAdvanced.cpp.

Definition at line 258 of file vpHomogeneousMatrix.h.

Referenced by vpMbGenericTracker::init().

void vpHomogeneousMatrix::insert ( const vpRotationMatrix & R )

Insert the rotational component of the homogeneous matrix.

Examples:: testDisplacement.cpp, tutorial-simu-pioneer-continuous-gain-adaptive.cpp, tutorial-simu-pioneer-continuous-gain-constant.cpp, tutorial-simu-pioneer-pan.cpp, and tutorial-simu-pioneer.cpp.

Definition at line 762 of file vpHomogeneousMatrix.cpp.

Referenced by buildFrom(), vpHomography::buildFrom(), vpHandEyeCalibration::calibrate(), vpExponentialMap::direct(), insert(), inverse(), operator*(), vpPose::poseLowe(), and vpHomogeneousMatrix().

void vpHomogeneousMatrix::insert ( const vpThetaUVector & tu )

Insert the rotational component of the homogeneous matrix from a $theta {\bf u}$ rotation vector.

Definition at line 775 of file vpHomogeneousMatrix.cpp.

References insert().

void vpHomogeneousMatrix::insert ( const vpTranslationVector & t )

Insert the translational component in a homogeneous matrix.

Definition at line 784 of file vpHomogeneousMatrix.cpp.

void vpHomogeneousMatrix::insert ( const vpQuaternionVector & q )

Insert the rotational component of the homogeneous matrix from a quaternion rotation vector.

Definition at line 797 of file vpHomogeneousMatrix.cpp.

References insert().

vpHomogeneousMatrix vpHomogeneousMatrix::inverse ( ) const

Invert the homogeneous matrix

Returns: $\left[\begin{array}{cc} {\bf R} & {\bf t} \\ {\bf 0}_{1\times 3} & 1 \end{array} \right]^{-1} = \left[\begin{array}{cc} {\bf R}^T & -{\bf R}^T {\bf t} \\ {\bf 0}_{1\times 3} & 1 \end{array} \right]$

Examples:: calibrate-hand-eye.cpp, grabRealSense2_T265.cpp, manServo4PointsDisplay.cpp, manServoMomentsSimple.cpp, manSimu4Dots.cpp, manSimu4Points.cpp, mbtGenericTrackingDepthOnly.cpp, photometricVisualServoing.cpp, photometricVisualServoingWithoutVpServo.cpp, servoAfma62DhalfCamVelocity.cpp, servoBebop2.cpp, servoFrankaIBVS.cpp, servoFrankaPBVS.cpp, servoMomentImage.cpp, servoSimu3D_cdMc_CamVelocity.cpp, servoSimu3D_cdMc_CamVelocityWithoutVpServo.cpp, servoSimu3D_cMcd_CamVelocity.cpp, servoSimu3D_cMcd_CamVelocityWithoutVpServo.cpp, servoSimu4Points.cpp, servoSimuCircle2DCamVelocity.cpp, servoSimuCircle2DCamVelocityDisplay.cpp, servoSimuCylinder.cpp, servoSimuCylinder2DCamVelocityDisplay.cpp, servoSimuCylinder2DCamVelocityDisplaySecondaryTask.cpp, servoSimuFourPoints2DCamVelocity.cpp, servoSimuFourPoints2DCamVelocityDisplay.cpp, servoSimuFourPoints2DPolarCamVelocityDisplay.cpp, servoSimuLine2DCamVelocityDisplay.cpp, servoSimuPoint2DCamVelocity1.cpp, servoSimuPoint2DCamVelocity2.cpp, servoSimuPoint2DCamVelocity3.cpp, servoSimuPoint2DhalfCamVelocity1.cpp, servoSimuPoint2DhalfCamVelocity2.cpp, servoSimuPoint2DhalfCamVelocity3.cpp, servoSimuPoint3DCamVelocity.cpp, servoSimuSphere.cpp, servoSimuSphere2DCamVelocity.cpp, servoSimuSphere2DCamVelocityDisplay.cpp, servoSimuSphere2DCamVelocityDisplaySecondaryTask.cpp, servoSimuSquareLine2DCamVelocityDisplay.cpp, servoSimuThetaUCamVelocity.cpp, simulateCircle2DCamVelocity.cpp, simulateFourPoints2DCartesianCamVelocity.cpp, simulateFourPoints2DPolarCamVelocity.cpp, testFeatureSegment.cpp, testRealSense2_T265_images_odometry.cpp, testRealSense2_T265_images_odometry_async.cpp, testRealSense2_T265_odometry.cpp, testRobotViper650-frames.cpp, testRobotViper850-frames.cpp, testVirtuoseHapticBox.cpp, testVirtuoseWithGlove.cpp, tutorial-ibvs-4pts-display.cpp, tutorial-ibvs-4pts-image-tracking.cpp, tutorial-ibvs-4pts-ogre-tracking.cpp, tutorial-ibvs-4pts-ogre.cpp, tutorial-ibvs-4pts-plotter-continuous-gain-adaptive.cpp, tutorial-ibvs-4pts-plotter-gain-adaptive.cpp, tutorial-ibvs-4pts-plotter.cpp, tutorial-ibvs-4pts-wireframe-camera.cpp, tutorial-ibvs-4pts.cpp, tutorial-simu-pioneer-continuous-gain-adaptive.cpp, tutorial-simu-pioneer-continuous-gain-constant.cpp, tutorial-simu-pioneer-pan.cpp, and tutorial-simu-pioneer.cpp.

Definition at line 813 of file vpHomogeneousMatrix.cpp.

References extract(), insert(), and vpRotationMatrix::t().

Referenced by vpVirtualGrabber::acquire(), vpKeyPoint::compute3D(), vpKeyPoint::compute3DForPointsOnCylinders(), vpSimulatorViper850::compute_fMi(), vpMbtFaceDepthNormal::computeDesiredNormalAndCentroid(), vpPtu46::computeMGD(), vpBiclops::computeMGD(), vpPoseFeatures::computePose(), vpMbHiddenFaces< PolygonType >::computeScanLineQuery(), vpMbDepthDenseTracker::computeVVS(), vpMbDepthNormalTracker::computeVVS(), vpMbEdgeKltTracker::computeVVS(), vpMbKltTracker::computeVVS(), vpMbGenericTracker::computeVVS(), vpMbEdgeTracker::computeVVS(), vpMbEdgeTracker::computeVVSFirstPhasePoseEstimation(), vpProjectionDisplay::displayCamera(), vpPtu46::get_cMe(), vpAfma4::get_cMe(), vpViper::get_cMe(), vpAfma6::get_cMe(), vpRobotWireFrameSimulator::get_cMo(), vpRobotFlirPtu::get_cVe(), vpAfma4::get_cVf(), vpViper::get_eJe(), vpViper::get_fJe(), vpBiclops::get_fMc(), vpRobotBiclops::getDisplacement(), vpRobotAfma6::getDisplacement(), vpSimulator::getExternalCameraPosition(), vpSimulatorAfma6::getExternalImage(), vpSimulatorViper850::getExternalImage(), vpWireFrameSimulator::getExternalImage(), vpRobotFranka::getForceTorque(), vpWireFrameSimulator::getInternalImage(), vpRobotWireFrameSimulator::getInternalView(), vpViper::getInverseKinematics(), vpAfma6::getInverseKinematics(), vpRobotAfma4::getVelocity(), vpRobotAfma6::getVelocity(), vpRobotViper650::getVelocity(), vpRobotViper850::getVelocity(), vpSimulatorAfma6::initialiseCameraRelativeToObject(), vpSimulatorViper850::initialiseCameraRelativeToObject(), inverse(), vpSimulator::moveInternalCamera(), vpPose::poseVirtualVS(), vpPose::poseVirtualVSrobust(), vpWireFrameSimulator::projectCameraTrajectory(), vpBiclops::set_cMe(), vpPioneerPan::set_cMe(), vpWireFrameSimulator::setCameraPositionRelObj(), vpWireFrameSimulator::setCameraPositionRelWorld(), vpWireFrameSimulator::setExternalCameraPosition(), vpMbKltTracker::setPose(), vpSimulatorAfma6::setPosition(), vpRobotCamera::setVelocity(), vpSimulatorPioneer::setVelocity(), vpSimulatorPioneerPan::setVelocity(), vpMbGenericTracker::track(), vpKinect::vpKinect(), vpSimulatorPioneer::vpSimulatorPioneer(), and vpSimulatorPioneerPan::vpSimulatorPioneerPan().

void vpHomogeneousMatrix::inverse ( vpHomogeneousMatrix & M ) const

Invert the homogeneous matrix.

Parameters

M	: The inverted homogeneous matrix: $\left[\begin{array}{cc} {\bf R} & {\bf t} \\ {\bf 0}_{1\times 3} & 1 \end{array} \right]^{-1} = \left[\begin{array}{cc} {\bf R}^T & -{\bf R}^T {\bf t} \\ {\bf 0}_{1\times 3} & 1 \end{array} \right]$

Definition at line 861 of file vpHomogeneousMatrix.cpp.

References inverse().

bool vpHomogeneousMatrix::isAnHomogeneousMatrix ( ) const

Test if the 3x3 rotational part of the homogeneous matrix is really a rotation matrix.

Definition at line 711 of file vpHomogeneousMatrix.cpp.

References extract(), and vpRotationMatrix::isARotationMatrix().

Referenced by vpHomogeneousMatrix().

void vpHomogeneousMatrix::load ( std::ifstream & f )

Read an homogeneous matrix from an input file stream. The homogeneous matrix is considered as a 4 by 4 matrix.

Parameters

f	: Input file stream.

The code below shows how to get an homogeneous matrix from a file.

vpHomogeneousMatrix M;
std::ifstream f("homogeneous.dat");
M.load(f);

See also: save()

Examples:: mbtGenericTrackingDepth.cpp, mbtGenericTrackingDepthOnly.cpp, servoAfma6Points2DCamVelocityEyeToHand.cpp, tutorial-mb-generic-tracker-rgbd-blender.cpp, tutorial-mb-generic-tracker-rgbd.cpp, and tutorial-mb-generic-tracker-stereo.cpp.

Definition at line 912 of file vpHomogeneousMatrix.cpp.

References vpException::ioError.

static bool vpArray2D< double >::load	(	const std::string &	filename,
		vpArray2D< double > &	A,
		bool	binary = `false`,
		char *	header = `NULL`
	)

inlinestaticinherited

Load a matrix from a file.

Parameters

filename	: Absolute file name.
A	: Array to be loaded
binary	: If true the matrix is loaded from a binary file, else from a text file.
header	: Header of the file is loaded in this parameter.

Returns: Returns true if success.

See also: save()

Definition at line 540 of file vpArray2D.h.

References vpException::badValue, and vpArray2D< Type >::resize().

static bool vpArray2D< double >::loadYAML	(	const std::string &	filename,
		vpArray2D< double > &	A,
		char *	header = `NULL`
	)

inlinestaticinherited

Load an array from a YAML-formatted file.

Parameters

filename	: absolute file name.
A	: array to be loaded from the file.
header	: header of the file is loaded in this parameter.

Returns: Returns true on success.

See also: saveYAML()

Examples:: servoFlirPtuIBVS.cpp, servoFrankaIBVS.cpp, servoFrankaPBVS.cpp, tutorial-flir-ptu-ibvs.cpp, and tutorial-hand-eye-calibration.cpp.

Definition at line 652 of file vpArray2D.h.

References vpArray2D< Type >::resize().

vpHomogeneousMatrix vpHomogeneousMatrix::mean ( const std::vector< vpHomogeneousMatrix > & vec_M )

static

Compute the Euclidean mean of the homogeneous matrices. The Euclidean mean of the rotation matrices is computed following Moakher's method (SIAM 2002).

Parameters

[in] vec_M : Set of homogeneous matrices.

Returns: The Euclidian mean of the homogeneous matrices.

See also: vpTranslationVector::mean(), vpRotationMatrix::mean()

Definition at line 1033 of file vpHomogeneousMatrix.cpp.

References getTranslationVector(), vpMatrix::pseudoInverse(), and vpMatrix::t().

bool vpArray2D< double >::operator!= ( const vpArray2D< double > & A ) const

inherited

Not equal to comparison operator of a 2D array.

vpHomogeneousMatrix vpHomogeneousMatrix::operator* ( const vpHomogeneousMatrix & M ) const

Operator that allow to multiply an homogeneous matrix by an other one.

#include <visp3/core/vpHomogeneousMatrix.h>
int main()
{
  vpHomogeneousMatrix aMb, bMc;
  // Initialize aMb and bMc...
  // Compute aMc * bMc
  vpHomogeneousMatrix aMc = aMb * bMc;
}

Definition at line 467 of file vpHomogeneousMatrix.cpp.

References extract(), and insert().

vpColVector vpHomogeneousMatrix::operator* ( const vpColVector & v ) const

Operator that allow to multiply an homogeneous matrix by a 4-dimension column vector.

Exceptions

vpException::dimensionError : If the vector v is not a 4-dimension vector.

Definition at line 520 of file vpHomogeneousMatrix.cpp.

References vpException::dimensionError, vpArray2D< Type >::getRows(), vpArray2D< double >::rowNum, and vpArray2D< double >::rowPtrs.

vpTranslationVector vpHomogeneousMatrix::operator* ( const vpTranslationVector & t ) const

Since a translation vector could be seen as the origin point of a frame, this function computes the new coordinates of a translation vector after applying an homogeneous transformation.

Parameters

t	: Translation vector seen as the 3D coordinates of a point.

Returns: A translation vector that contains the new 3D coordinates after applying the homogeneous transformation.

Definition at line 594 of file vpHomogeneousMatrix.cpp.

vpPoint vpHomogeneousMatrix::operator* ( const vpPoint & bP ) const

From the coordinates of the point in camera frame b and the transformation between camera frame a and camera frame b computes the coordinates of the point in camera frame a.

Parameters

bP	: 3D coordinates of the point in camera frame bP.

Returns: A point with 3D coordinates in the camera frame a. The coordinates in the world or object frame are set to the same coordinates than the one in the camera frame.

Definition at line 552 of file vpHomogeneousMatrix.cpp.

References vpPoint::get_W(), vpPoint::get_X(), vpPoint::get_Y(), vpPoint::get_Z(), vpPoint::set_oW(), vpPoint::set_oX(), vpPoint::set_oY(), vpPoint::set_oZ(), vpPoint::set_W(), vpPoint::set_X(), vpPoint::set_Y(), and vpPoint::set_Z().

vpHomogeneousMatrix & vpHomogeneousMatrix::operator*= ( const vpHomogeneousMatrix & M )

Operator that allow to multiply an homogeneous matrix by an other one.

#include <visp3/core/vpHomogeneousMatrix.h>
int main()
{
  vpHomogeneousMatrix M1, M2;
  // Initialize M1 and M2...
  // Compute M1 = M1 * M2
  M1 *= M2;
}

Definition at line 507 of file vpHomogeneousMatrix.cpp.

vpHomogeneousMatrix & vpHomogeneousMatrix::operator, ( double val )

Set the second and next element of the homogenous matrix.

Parameters

val	: Value of the matrix second or next element.

Returns: An updated matrix.

The following example shows how to initialize an homogeneous matrix using this operator.

#include <visp3/core/vpHomogeneousMatrix.h>
int main()
{
  vpHomogeneousMatrix M;
  M << 0, 0, 1, 0.1,
       0, 1, 0, 0.2,
       1, 0, 0, 0.3;
  std::cout << "M:\n" << M << std::endl;
  vpHomogeneousMatrix N;
  N << 0, 0, 1, 0.1,
       0, 1, 0, 0.2,
       1, 0, 0, 0.3,
       0, 0, 0, 1;
  std::cout << "N:\n" << N << std::endl;
}

It produces the following printings:

See also: operator<<()

Definition at line 695 of file vpHomogeneousMatrix.cpp.

References vpArray2D< double >::data, vpException::dimensionError, m_index, and vpArray2D< double >::size().

vpHomogeneousMatrix & vpHomogeneousMatrix::operator<< ( double val )

Set homogeneous matrix first element.

Parameters

val	: Value of the matrix first element.

Returns: An updated matrix.

The following example shows how to initialize a rotation matrix using this operator.

#include <visp3/core/vpHomogeneousMatrix.h>
int main()
{
  vpHomogeneousMatrix M;
  M << 0, 0, 1, 0.1,
       0, 1, 0, 0.2,
       1, 0, 0, 0.3;
  std::cout << "M:\n" << M << std::endl;
  vpHomogeneousMatrix N;
  N << 0, 0, 1, 0.1,
       0, 1, 0, 0.2,
       1, 0, 0, 0.3,
       0, 0, 0, 1;
  std::cout << "N:\n" << N << std::endl;
}

It produces the following printings:

See also: operator,()

Definition at line 646 of file vpHomogeneousMatrix.cpp.

References vpArray2D< double >::data, and m_index.

vpHomogeneousMatrix & vpHomogeneousMatrix::operator= ( const vpHomogeneousMatrix & M )

Copy operator that allows to set an homogeneous matrix from an other one.

Parameters

M	: Matrix to copy.

Definition at line 440 of file vpHomogeneousMatrix.cpp.

References vpArray2D< double >::rowPtrs, and vpArray2D< Type >::rowPtrs.

bool vpArray2D< double >::operator== ( const vpArray2D< double > & A ) const

inherited

Equal to comparison operator of a 2D array.

double * vpArray2D< double >::operator[] ( unsigned int i )

inlineinherited

Set element $A_{ij} = x$ using A[i][j] = x.

Definition at line 484 of file vpArray2D.h.

double * vpArray2D< double >::operator[] ( unsigned int i ) const

inlineinherited

Get element $x = A_{ij}$ using x = A[i][j].

Definition at line 486 of file vpArray2D.h.

void vpHomogeneousMatrix::print ( ) const

Print the matrix as a pose vector $({\bf t}^T \theta {\bf u}^T)$ .

Examples:: servoAfma6Points2DCamVelocityEyeToHand.cpp.

Definition at line 926 of file vpHomogeneousMatrix.cpp.

References vpPoseVector::t().

void vpArray2D< double >::reshape	(	unsigned int	nrows,
		unsigned int	ncols
	)

inlineinherited

Examples:: testMatrixInitialization.cpp.

Definition at line 379 of file vpArray2D.h.

References vpException::dimensionError, vpArray2D< Type >::dsize, vpArray2D< Type >::operator!=(), vpArray2D< Type >::operator==(), vpArray2D< Type >::resize(), and vpArray2D< Type >::rowPtrs.

void vpHomogeneousMatrix::resize	(	unsigned int	nrows,
		unsigned int	ncols,
		bool	flagNullify = `true`
	)

inline

This function is not applicable to an homogeneous matrix that is always a 4-by-4 matrix.

Exceptions

vpException::fatalError When this function is called.

Definition at line 239 of file vpHomogeneousMatrix.h.

References vpException::fatalError.

void vpArray2D< double >::resize	(	unsigned int	nrows,
		unsigned int	ncols,
		bool	flagNullify = `true`,
		bool	recopy_ = `true`
	)

inlineinherited

Set the size of the array and initialize all the values to zero.

Parameters

nrows	: number of rows.
ncols	: number of column.
flagNullify	: if true, then the array is re-initialized to 0 after resize. If false, the initial values from the common part of the array (common part between old and new version of the array) are kept. Default value is true.
recopy_	: if true, will perform an explicit recopy of the old data.

Examples:: testArray2D.cpp, testMatrix.cpp, testMatrixConditionNumber.cpp, testMatrixDeterminant.cpp, testMatrixInitialization.cpp, testMatrixInverse.cpp, testMatrixPseudoInverse.cpp, and testSvd.cpp.

Definition at line 304 of file vpArray2D.h.

References vpArray2D< Type >::colNum, vpArray2D< Type >::dsize, vpException::memoryAllocationError, vpArray2D< Type >::rowNum, and vpArray2D< Type >::rowPtrs.

Referenced by vpMatrix::diag(), vpMatrix::eye(), vpMatrix::init(), vpMatrix::operator,(), vpMatrix::operator<<(), vpMatrix::operator=(), vpMatrix::stack(), and vpMatrix::svdOpenCV().

void vpHomogeneousMatrix::save ( std::ofstream & f ) const

Write an homogeneous matrix in an output file stream.

Parameters

f	: Output file stream. The homogeneous matrix is saved as a 4 by 4 matrix.

The code below shows how to save an homogeneous matrix in a file.

// Contruct an homogeneous matrix
vpTranslationVector t(1,2,3);
vpRxyzVector r(M_PI, 0, -M_PI/4.);
vpRotationMatrix R(r);
vpHomogeneousMatrix M(t, R);
// Save the content of the matrix in "homogeneous.dat"
std::ofstream f("homogeneous.dat");
M.save(f);

See also: load()

Examples:: servoAfma6Points2DCamVelocityEyeToHand.cpp, and tutorial-hand-eye-calibration.cpp.

Definition at line 885 of file vpHomogeneousMatrix.cpp.

References vpException::ioError.

Referenced by vpViewer::resize().

static bool vpArray2D< double >::save	(	const std::string &	filename,
		const vpArray2D< double > &	A,
		bool	binary = `false`,
		const char *	header = `""`
	)

inlinestaticinherited

Save a matrix to a file.

Parameters

filename	: Absolute file name.
A	: Array to be saved.
binary	: If true the matrix is saved in a binary file, else a text file.
header	: Optional line that will be saved at the beginning of the file.

Returns: Returns true if success.

Warning : If you save the matrix as in a text file the precision is less than if you save it in a binary file.

See also: load()

Definition at line 737 of file vpArray2D.h.

References vpArray2D< Type >::getCols(), and vpArray2D< Type >::getRows().

static bool vpArray2D< double >::saveYAML	(	const std::string &	filename,
		const vpArray2D< double > &	A,
		const char *	header = `""`
	)

inlinestaticinherited

Save an array in a YAML-formatted file.

Parameters

filename	: absolute file name.
A	: array to be saved in the file.
header	: optional lines that will be saved at the beginning of the file. Should be YAML-formatted and will adapt to the indentation if any.

Returns: Returns true if success.

Here is an example of outputs.

vpArray2D<double> M(3,4);
vpArray2D::saveYAML("matrix.yml", M, "example: a YAML-formatted header");
vpArray2D::saveYAML("matrixIndent.yml", M, "example:\n    - a YAML-formatted
header\n    - with inner indentation"); 

Content of matrix.yml:

example: a YAML-formatted header
rows: 3
cols: 4
data:
  - [0, 0, 0, 0]
  - [0, 0, 0, 0]
  - [0, 0, 0, 0]

Content of matrixIndent.yml:

example:
    - a YAML-formatted header
    - with inner indentation
rows: 3
cols: 4
data:
    - [0, 0, 0, 0]
    - [0, 0, 0, 0]
    - [0, 0, 0, 0]

See also: loadYAML()

Examples:: tutorial-chessboard-pose.cpp, tutorial-franka-acquire-calib-data.cpp, and tutorial-hand-eye-calibration.cpp.

Definition at line 830 of file vpArray2D.h.

References vpArray2D< Type >::getCols(), and vpArray2D< Type >::getRows().

void vpHomogeneousMatrix::setIdentity ( )

Deprecated:: You should rather use eye().

Deprecated:: You should rather use eye().

Set homogeneous matrix to identity.

See also: eye()

Definition at line 1076 of file vpHomogeneousMatrix.cpp.

References eye().

unsigned int vpArray2D< double >::size ( ) const

inlineinherited

Return the number of elements of the 2D array.

Examples:: testColVector.cpp, testDisplacement.cpp, testEigenConversion.cpp, testMatrix.cpp, testMatrixInitialization.cpp, testPoseVector.cpp, testRobotViper650-frames.cpp, testRobotViper850-frames.cpp, testRowVector.cpp, testThread2.cpp, testTranslationVector.cpp, testTukeyEstimator.cpp, tutorial-ibvs-4pts-wireframe-robot-afma6.cpp, tutorial-ibvs-4pts-wireframe-robot-viper.cpp, tutorial-mb-generic-tracker-rgbd-blender.cpp, tutorial-mb-generic-tracker-rgbd-realsense.cpp, and tutorial-mb-generic-tracker-rgbd.cpp.

Definition at line 291 of file vpArray2D.h.

References vpArray2D< Type >::rowNum.

Referenced by vpRowVector::insert(), vpColVector::insert(), vpColVector::operator*(), vpRotationVector::operator,(), vpTranslationVector::operator,(), vpRotationMatrix::operator,(), operator,(), vpQuaternionVector::operator=(), vpTranslationVector::operator=(), vpRxyzVector::operator=(), vpRzyzVector::operator=(), vpRzyxVector::operator=(), vpThetaUVector::operator=(), vpMatrix::stack(), vpRotationVector::toStdVector(), vpRowVector::toStdVector(), and vpColVector::toStdVector().

Friends And Related Function Documentation

enum vpGEMMmethod

Operations are :

VP_GEMM_A_T to use the transpose matrix of A instead of the matrix A
VP_GEMM_B_T to use the transpose matrix of B instead of the matrix B
VP_GEMM_C_T to use the transpose matrix of C instead of the matrix C

Definition at line 57 of file vpGEMM.h.

Member Data Documentation

unsigned int vpArray2D< double >::colNum

protectedinherited

Number of columns in the array.

Definition at line 137 of file vpArray2D.h.

double * vpArray2D< double >::data

inherited

Address of the first element of the data array.

Examples:: testArray2D.cpp, testDisplacement.cpp, testEigenConversion.cpp, testImageFilter.cpp, testMatrix.cpp, testTranslationVector.cpp, and tutorial-matlab.cpp.

Definition at line 145 of file vpArray2D.h.

Referenced by vpMatrix::AAt(), vpMatrix::AtA(), vpQuaternionVector::buildFrom(), buildFrom(), vpThetaUVector::buildFrom(), vpRzyzVector::buildFrom(), vpRxyzVector::buildFrom(), vpRzyxVector::buildFrom(), vpSubColVector::checkParentStatus(), vpSubRowVector::checkParentStatus(), vpSubMatrix::checkParentStatus(), vpColVector::clear(), convert(), vpMatrix::detByLUEigen3(), vpMatrix::detByLUOpenCV(), vpMatrix::expm(), vpThetaUVector::extract(), vpMatrix::frobeniusNorm(), vpMatrix::getRow(), vpThetaUVector::getTheta(), vpThetaUVector::getU(), vpColVector::hadamard(), vpMatrix::hadamard(), vpSubColVector::init(), vpSubRowVector::init(), vpSubMatrix::init(), vpColVector::insert(), vpMatrix::insert(), vpMatrix::inverseByCholeskyOpenCV(), vpMatrix::inverseByLUEigen3(), vpMatrix::inverseByLUOpenCV(), vpTranslationVector::operator*(), vpRowVector::operator*(), vpHomography::operator*(), vpColVector::operator*(), vpMatrix::operator*(), vpRotationVector::operator,(), vpTranslationVector::operator,(), vpRotationMatrix::operator,(), operator,(), vpRowVector::operator,(), vpColVector::operator,(), vpTranslationVector::operator-(), vpRowVector::operator-(), vpColVector::operator-(), vpTranslationVector::operator/(), vpRowVector::operator/(), vpHomography::operator/(), vpColVector::operator/(), vpHomography::operator/=(), vpRotationVector::operator<<(), vpTranslationVector::operator<<(), vpRotationMatrix::operator<<(), operator<<(), vpRowVector::operator<<(), vpColVector::operator<<(), vpSubColVector::operator=(), vpSubRowVector::operator=(), vpQuaternionVector::operator=(), vpTranslationVector::operator=(), vpRotationMatrix::operator=(), vpRxyzVector::operator=(), vpRzyzVector::operator=(), vpRzyxVector::operator=(), vpRowVector::operator=(), vpThetaUVector::operator=(), vpColVector::operator=(), vpMatrix::operator=(), vpRowVector::operator==(), vpColVector::operator==(), vpColVector::operator[](), vpMatrix::qr(), vpMatrix::qrPivot(), vpRowVector::reshape(), vpColVector::reshape(), vpQuaternionVector::set(), vpMatrix::stack(), vpMatrix::stackRows(), vpColVector::sum(), vpColVector::sumSquare(), vpMatrix::svdEigen3(), vpMatrix::svdLapack(), vpMatrix::svdOpenCV(), vpRotationVector::t(), vpTranslationVector::t(), vpPoseVector::t(), vpRowVector::t(), vpColVector::t(), vpRotationVector::toStdVector(), vpRowVector::toStdVector(), vpColVector::toStdVector(), vpMatrix::transpose(), vpColVector::vpColVector(), vpHomogeneousMatrix(), vpMatrix::vpMatrix(), vpRowVector::vpRowVector(), vpQuaternionVector::w(), vpQuaternionVector::x(), vpQuaternionVector::y(), vpQuaternionVector::z(), vpSubColVector::~vpSubColVector(), vpSubMatrix::~vpSubMatrix(), and vpSubRowVector::~vpSubRowVector().

unsigned int vpArray2D< double >::dsize

protectedinherited

unsigned int vpHomogeneousMatrix::m_index

protected

Definition at line 267 of file vpHomogeneousMatrix.h.

Referenced by operator,(), and operator<<().

unsigned int vpArray2D< double >::rowNum

protectedinherited

Number of rows in the array.

Definition at line 135 of file vpArray2D.h.

double ** vpArray2D< double >::rowPtrs

protectedinherited

Address of the first element of each rows.

Definition at line 139 of file vpArray2D.h.

Referenced by vpMatrix::AAt(), vpColVector::clear(), vpMatrix::infinityNorm(), vpSubColVector::init(), vpSubRowVector::init(), vpSubMatrix::init(), vpRowVector::init(), vpColVector::init(), vpMatrix::init(), vpRotationMatrix::operator*(), vpForceTwistMatrix::operator*(), vpVelocityTwistMatrix::operator*(), operator*(), vpMatrix::operator*(), vpRotationMatrix::operator*=(), vpMatrix::operator*=(), vpMatrix::operator+=(), vpMatrix::operator,(), vpMatrix::operator-=(), vpMatrix::operator/(), vpMatrix::operator/=(), vpColVector::operator<<(), vpMatrix::operator<<(), vpSubMatrix::operator=(), vpRotationMatrix::operator=(), vpForceTwistMatrix::operator=(), vpVelocityTwistMatrix::operator=(), operator=(), vpRowVector::operator=(), vpColVector::operator=(), vpMatrix::operator=(), vpMatrix::stack(), vpMatrix::stackColumns(), vpRowVector::sum(), vpMatrix::sum(), vpRotationVector::sumSquare(), vpTranslationVector::sumSquare(), vpRowVector::sumSquare(), vpMatrix::sumSquare(), vpColVector::vpColVector(), vpMatrix::vpMatrix(), and vpRowVector::vpRowVector().

Public Member Functions

Static Public Member Functions

Public Attributes

Protected Attributes

Related Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation

Member Data Documentation