#include <visp3/robot/vpViper.h>

Inheritance diagram for vpViper:

Public Member Functions
	vpViper ()

virtual	~vpViper ()

Inherited functionalities from vpViper
vpHomogeneousMatrix	getForwardKinematics (const vpColVector &q) const

unsigned int	getInverseKinematicsWrist (const vpHomogeneousMatrix &fMw, vpColVector &q, const bool &verbose=false) const

unsigned int	getInverseKinematics (const vpHomogeneousMatrix &fMc, vpColVector &q, const bool &verbose=false) const

vpHomogeneousMatrix	get_fMc (const vpColVector &q) const

void	get_fMw (const vpColVector &q, vpHomogeneousMatrix &fMw) const

void	get_wMe (vpHomogeneousMatrix &wMe) const

void	get_eMc (vpHomogeneousMatrix &eMc) const

void	get_eMs (vpHomogeneousMatrix &eMs) const

void	get_fMe (const vpColVector &q, vpHomogeneousMatrix &fMe) const

void	get_fMc (const vpColVector &q, vpHomogeneousMatrix &fMc) const

void	get_cMe (vpHomogeneousMatrix &cMe) const

void	get_cVe (vpVelocityTwistMatrix &cVe) const

void	get_fJw (const vpColVector &q, vpMatrix &fJw) const

void	get_fJe (const vpColVector &q, vpMatrix &fJe) const

void	get_eJe (const vpColVector &q, vpMatrix &eJe) const

virtual void	set_eMc (const vpHomogeneousMatrix &eMc_)

virtual void	set_eMc (const vpTranslationVector &etc_, const vpRxyzVector &erc_)

vpColVector	getJointMin () const

vpColVector	getJointMax () const

double	getCoupl56 () const

Static Public Attributes
static const unsigned int	njoint = 6

Protected Attributes
vpHomogeneousMatrix	eMc

vpTranslationVector	etc

vpRxyzVector	erc

double	a1

double	d1

double	a2

double	a3

double	d4

double	d6

double	d7

double	c56

vpColVector	joint_max

vpColVector	joint_min

Friends
VISP_EXPORT std::ostream &	operator<< (std::ostream &os, const vpViper &viper)

Detailed Description

Modelisation of the ADEPT Viper robot.

This robot has six degrees of freedom. The model of the robot is the following:

Model of the Viper 850 robot.

The non modified Denavit-Hartenberg representation of the robot is given in the table below, where $q_1^*, \ldots, q_6^*$ are the variable joint positions.

$\begin{tabular}{|c|c|c|c|c|} \hline Joint & $a_i$ & $d_i$ & $\alpha_i$ & $\theta_i$ \\ \hline 1 & $a_1$ & $d_1$ & $-\pi/2$ & $q_1^*$ \\ 2 & $a_2$ & 0 & 0 & $q_2^*$ \\ 3 & $a_3$ & 0 & $-\pi/2$ & $q_3^* - \pi$ \\ 4 & 0 & $d_4$ & $\pi/2$ & $q_4^*$ \\ 5 & 0 & 0 & $-\pi/2$ & $q_5^*$ \\ 6 & 0 & 0 & 0 & $q_6^*-\pi$ \\ 7 & 0 & $d_6$ & 0 & 0 \\ \hline \end{tabular}$

In this modelisation, different frames have to be considered.

${\cal F}_f$ : the reference frame, also called world frame
${\cal F}_w$ : the wrist frame located at the intersection of the last three rotations, with $^f{\bf M}_w = ^0{\bf M}_6$
${\cal F}_e$ : the end-effector frame located at the interface of the two tool changers, with $^f{\bf M}_e = 0{\bf M}_7$
${\cal F}_c$ : the camera or tool frame, with $^f{\bf M}_c = ^f{\bf M}_e \; ^e{\bf M}_c$ where $^e{\bf M}_c$ is the result of a calibration stage. We can also consider a custom tool TOOL_CUSTOM and set this during robot initialisation or using set_eMc().
${\cal F}_s$ : the force/torque sensor frame, with .

The forward kinematics of the robot is implemented in get_fMw(), get_fMe() and get_fMc().

The robot forward jacobian used to compute the cartesian velocities from joint ones is given and implemented in get_fJw(), get_fJe() and get_eJe().

Definition at line 113 of file vpViper.h.

Constructor & Destructor Documentation

◆ vpViper()

vpViper::vpViper ( )

Default constructor.

Definition at line 65 of file vpViper.cpp.

References a1, a2, a3, c56, d1, d4, d6, d7, eMc, vpHomogeneousMatrix::eye(), joint_max, joint_min, njoint, vpMath::rad(), and vpColVector::resize().

◆ ~vpViper()

virtual vpViper::~vpViper ( )

inlinevirtual

Definition at line 117 of file vpViper.h.

Member Function Documentation

◆ get_cMe()

void vpViper::get_cMe ( vpHomogeneousMatrix & cMe ) const

Get the geometric transformation between the camera frame and the end-effector frame. This transformation is constant and correspond to the extrinsic camera parameters estimated by calibration.

Parameters

cMe	: Transformation between the camera frame and the end-effector frame.

See also: get_eMc()

Definition at line 922 of file vpViper.cpp.

References eMc, and vpHomogeneousMatrix::inverse().

Referenced by vpSimulatorViper850::get_cMe(), vpRobotViper650::get_cMe(), vpRobotViper850::get_cMe(), get_cVe(), vpSimulatorViper850::get_cVe(), vpRobotViper650::get_cVe(), vpRobotViper850::get_cVe(), vpRobotViper650::getControlMode(), vpRobotViper850::getControlMode(), and vpSimulatorViper850::getPositioningVelocity().

◆ get_cVe()

void vpViper::get_cVe ( vpVelocityTwistMatrix & cVe ) const

Get the twist transformation $^c{\bf V}_e$ from camera frame to end-effector frame. This transformation allows to compute a velocity expressed in the end-effector frame into the camera frame.

$^c{\bf V}_e = \left(\begin{array}{cc} ^c{\bf R}_e & [^c{\bf t}_e]_\times ^c{\bf R}_e\\ {\bf 0}_{3\times 3} & ^c{\bf R}_e \end{array} \right)$

Parameters

cVe	: Twist transformation $^c{\bf V}_e$ .

Definition at line 938 of file vpViper.cpp.

References vpVelocityTwistMatrix::buildFrom(), and get_cMe().

Referenced by vpRobotViper650::getControlMode(), vpRobotViper850::getControlMode(), and vpSimulatorViper850::getPositioningVelocity().

◆ get_eJe()

void vpViper::get_eJe	(	const vpColVector &	q,
		vpMatrix &	eJe
	)		const

Get the robot jacobian ${^e}{\bf J}_e$ which gives the velocity of the origin of the end-effector frame expressed in end-effector frame.

${^e}{\bf J}_e = \left[\begin{array}{cc} {^w}{\bf R}_f & {[{^e}{\bf t}_w}]_\times \; {^w}{\bf R}_f \\ 0_{3\times3} & {^w}{\bf R}_f \end{array} \right] \; {^f}{\bf J}_w$

Parameters

q	: A six-dimension vector that contains the joint positions of the robot expressed in radians.
eJe	: Robot jacobian ${^e}{\bf J}_e$ that express the velocity of the end-effector in the robot end-effector frame.

See also: get_fJw()

Definition at line 970 of file vpViper.cpp.

References vpHomogeneousMatrix::extract(), get_fJw(), get_fMw(), get_wMe(), vpRotationMatrix::inverse(), vpHomogeneousMatrix::inverse(), and vpTranslationVector::skew().

Referenced by vpSimulatorViper850::computeArticularVelocity(), vpSimulatorViper850::get_eJe(), vpRobotViper650::get_eJe(), vpRobotViper850::get_eJe(), and vpSimulatorViper850::getVelocity().

◆ get_eMc()

void vpViper::get_eMc ( vpHomogeneousMatrix & eMc_ ) const

Get the geometric transformation between the end-effector frame and the camera frame. This transformation is constant and correspond to the extrinsic camera parameters estimated by calibration.

Parameters

eMc_	: Transformation between the the end-effector frame and the camera frame.

See also: get_cMe()

Examples:: servoViper650FourPoints2DArtVelocityLs_cur.cpp, servoViper650FourPoints2DCamVelocityLs_cur-SR300.cpp, and servoViper650FourPoints2DCamVelocityLs_cur.cpp.

Definition at line 894 of file vpViper.cpp.

References eMc.

Referenced by getInverseKinematics().

◆ get_eMs()

void vpViper::get_eMs ( vpHomogeneousMatrix & eMs ) const

Get the geometric transformation between the end-effector frame and the force/torque sensor frame. This transformation is constant.

Parameters

eMs	: Transformation between the the end-effector frame and the force/torque sensor frame.

Definition at line 905 of file vpViper.cpp.

References d7, and vpHomogeneousMatrix::eye().

◆ get_fJe()

void vpViper::get_fJe	(	const vpColVector &	q,
		vpMatrix &	fJe
	)		const

Get the robot jacobian ${^f}{\bf J}_e$ which gives the velocity of the origin of the end-effector frame expressed in the robot reference frame also called fix frame.

${^f}{\bf J}_e = \left[\begin{array}{cc} I_{3\times3} & [{^f}{\bf R}_w \; {^e}{\bf t}_w]_\times \\ 0_{3\times3} & I_{3\times3} \end{array} \right] {^f}{\bf J}_w$

Parameters

q	: A six-dimension vector that contains the joint positions of the robot expressed in radians.
fJe	: Robot jacobian ${^f}{\bf J}_e$ that express the velocity of the end-effector in the robot reference frame.

See also: get_fJw

Definition at line 1159 of file vpViper.cpp.

References vpHomogeneousMatrix::extract(), get_fJw(), get_fMw(), get_wMe(), and vpHomogeneousMatrix::inverse().

Referenced by vpSimulatorViper850::computeArticularVelocity(), vpSimulatorViper850::get_fJe(), vpRobotViper650::get_fJe(), vpRobotViper850::get_fJe(), and vpSimulatorViper850::getVelocity().

◆ get_fJw()

void vpViper::get_fJw	(	const vpColVector &	q,
		vpMatrix &	fJw
	)		const

Get the robot jacobian ${^f}{\bf J}_w$ which express the velocity of the origin of the wrist frame in the robot reference frame also called fix frame.

${^f}J_w = \left(\begin{array}{cccccc} J_{11} & J_{12} & J_{13} & 0 & 0 & 0 \\ J_{21} & J_{22} & J_{23} & 0 & 0 & 0 \\ 0 & J_{32} & J_{33} & 0 & 0 & 0 \\ 0 & -s1 & -s1 & c1s23 & J_{45} & J_{46} \\ 0 & c1 & c1 & s1s23 & J_{55} & J_{56} \\ 1 & 0 & 0 & c23 & s23s4 & J_{56} \\ \end{array} \right)$

with

$\begin{array}{l} J_{11} = -s1(-c23a3+s23d4+a1+a2c2) \\ J_{21} = c1(-c23a3+s23d4+a1+a2c2) \\ J_{12} = c1(s23a3+c23d4-a2s2) \\ J_{22} = s1(s23a3+c23d4-a2s2) \\ J_{32} = c23a3-s23d4-a2c2 \\ J_{13} = c1(a3(s2c3+c2s3)+(-s2s3+c2c3)d4)\\ J_{23} = s1(a3(s2c3+c2s3)+(-s2s3+c2c3)d4)\\ J_{33} = -a3(s2s3-c2c3)-d4(s2c3+c2s3)\\ J_{45} = -c23c1s4-s1c4\\ J_{55} = c1c4-c23s1s4\\ J_{46} = (c1c23c4-s1s4)s5+c1s23c5\\ J_{56} = (s1c23c4+c1s4)s5+s1s23c5\\ J_{66} = -s23c4s5+c23c5\\ \end{array}$

Parameters

q	: A six-dimension vector that contains the joint positions of the robot expressed in radians.
fJw	: Robot jacobian ${^f}{\bf J}_w$ that express the velocity of the point w (origin of the wrist frame) in the robot reference frame.

See also: get_fJe(), get_eJe()

Definition at line 1054 of file vpViper.cpp.

References a1, a2, a3, d4, and vpArray2D< Type >::resize().

Referenced by get_eJe(), and get_fJe().

◆ get_fMc() [1/2]

vpHomogeneousMatrix vpViper::get_fMc ( const vpColVector & q ) const

Compute the forward kinematics (direct geometric model) as an homogeneous matrix.

By forward kinematics we mean here the position and the orientation of the camera relative to the base frame given the joint positions of all the six joints.

$^f{\bf M}_c = ^f{\bf M}_e \; ^e{\bf M}_c$

This method is the same than getForwardKinematics(const vpColVector & q).

Parameters

q	: Vector of six joint positions expressed in radians.

Returns: The homogeneous matrix corresponding to the direct geometric model which expresses the transformation between the base frame and the camera frame (fMc).

See also: getForwardKinematics(const vpColVector & q), get_fMe(), get_eMc()

Examples:: testRobotViper650-frames.cpp, testRobotViper850-frames.cpp, and testRobotViper850Pose.cpp.

Definition at line 600 of file vpViper.cpp.

Referenced by vpSimulatorViper850::compute_fMi(), getForwardKinematics(), vpSimulatorViper850::getPosition(), vpRobotViper650::getPosition(), vpRobotViper850::getPosition(), vpRobotViper650::getVelocity(), vpRobotViper850::getVelocity(), vpSimulatorViper850::setPosition(), vpRobotViper650::setPosition(), and vpRobotViper850::setPosition().

◆ get_fMc() [2/2]

void vpViper::get_fMc	(	const vpColVector &	q,
		vpHomogeneousMatrix &	fMc
	)		const

Compute the forward kinematics (direct geometric model) as an homogeneous matrix.

By forward kinematics we mean here the position and the orientation of the camera relative to the base frame given the six joint positions.

$^f{\bf M}_c = ^f{\bf M}_e \; {^e}{\bf M}_c$

Parameters

q	: Vector of six joint positions expressed in radians.
fMc	The homogeneous matrix $^f{\bf M}_c$ corresponding to the direct geometric model which expresses the transformation between the fix frame and the camera frame.

See also: get_fMe(), get_eMc()

Definition at line 629 of file vpViper.cpp.

References eMc, and get_fMe().

◆ get_fMe()

void vpViper::get_fMe	(	const vpColVector &	q,
		vpHomogeneousMatrix &	fMe
	)		const

Compute the forward kinematics (direct geometric model) as an homogeneous matrix ${^f}{\bf M}_e$ .

By forward kinematics we mean here the position and the orientation of the end effector with respect to the base frame given the motor positions of all the six joints.

${^f}M_e = \left(\begin{array}{cccc} r_{11} & r_{12} & r_{13} & t_x \\ r_{21} & r_{22} & r_{23} & t_y \\ r_{31} & r_{32} & r_{33} & t_z \\ \end{array} \right)$

with

$\begin{array}{l} r_{11} = c1(c23(c4c5c6-s4s6)-s23s5c6)-s1(s4c5c6+c4s6) \\ r_{21} = -s1(c23(-c4c5c6+s4s6)+s23s5c6)+c1(s4c5c6+c4s6) \\ r_{31} = s23(s4s6-c4c5c6)-c23s5c6 \\ \\ r_{12} = -c1(c23(c4c5s6+s4c6)-s23s5s6)+s1(s4c5s6-c4c6)\\ r_{22} = -s1(c23(c4c5s6+s4c6)-s23s5s6)-c1(s4c5s6-c4c6)\\ r_{32} = s23(c4c5s6+s4c6)+c23s5s6\\ \\ r_{13} = c1(c23c4s5+s23c5)-s1s4s5\\ r_{23} = s1(c23c4s5+s23c5)+c1s4s5\\ r_{33} = -s23c4s5+c23c5\\ \\ t_x = c1(c23(c4s5d6-a3)+s23(c5d6+d4)+a1+a2c2)-s1s4s5d6\\ t_y = s1(c23(c4s5d6-a3)+s23(c5d6+d4)+a1+a2c2)+c1s4s5d6\\ t_z = s23(a3-c4s5d6)+c23(c5d6+d4)-a2s2+d1\\ \end{array}$

Parameters

q	: A 6-dimension vector that contains the 6 joint positions expressed in radians.
fMe	The homogeneous matrix ${^f}{\bf M}_e$ corresponding to the direct geometric model which expresses the transformation between the fix frame and the end effector frame.

Note that this transformation can also be computed by considering the wrist frame ${^f}{\bf M}_e = {^f}{\bf M}_w *{^w}{\bf M}_e$ .

#include <visp3/robot/vpViper.h>
int main()
{
  vpViper robot;
  vpColVector q(6); // The measured six joint positions
  vpHomogeneousMatrix fMe; // Transformation from fix frame to end-effector
  robot.get_fMe(q, fMe); // Get the forward kinematics
  // The forward kinematics can also be computed by considering the wrist frame
  vpHomogeneousMatrix fMw; // Transformation from fix frame to wrist frame
  robot.get_fMw(q, fMw);
  vpHomogeneousMatrix wMe; // Transformation from wrist frame to end-effector
  robot.get_wMe(wMe); // Constant transformation
  // Compute the forward kinematics
  fMe = fMw * wMe;
}

Examples:: testRobotViper650-frames.cpp, testRobotViper850-frames.cpp, testRobotViper850.cpp, testViper650.cpp, and testViper850.cpp.

Definition at line 715 of file vpViper.cpp.

References a1, a2, a3, d1, d4, and d6.

Referenced by get_fMc(), vpRobotViper650::getVelocity(), and vpRobotViper850::getVelocity().

◆ get_fMw()

void vpViper::get_fMw	(	const vpColVector &	q,
		vpHomogeneousMatrix &	fMw
	)		const

Compute the transformation between the fix frame and the wrist frame. The wrist frame is located on the intersection of the 3 last rotations.

Parameters

q	: A 6-dimension vector that contains the 6 joint positions expressed in radians.
fMw	The homogeneous matrix corresponding to the transformation between the fix frame and the wrist frame (fMw).

${^f}M_w = \left(\begin{array}{cccc} r_{11} & r_{12} & r_{13} & t_x \\ r_{21} & r_{22} & r_{23} & t_y \\ r_{31} & r_{32} & r_{33} & t_z \\ \end{array} \right)$

with

$\begin{array}{l} r_{11} = c1(c23(c4c5c6-s4s6)-s23s5c6)-s1(s4c5c6+c4s6) \\ r_{21} = -s1(c23(-c4c5c6+s4s6)+s23s5c6)+c1(s4c5c6+c4s6) \\ r_{31} = s23(s4s6-c4c5c6)-c23s5c6 \\ \\ r_{12} = -c1(c23(c4c5s6+s4c6)-s23s5s6)+s1(s4c5s6-c4c6)\\ r_{22} = -s1(c23(c4c5s6+s4c6)-s23s5s6)-c1(s4c5s6-c4c6)\\ r_{32} = s23(c4c5s6+s4c6)+c23s5s6\\ \\ r_{13} = c1(c23c4s5+s23c5)-s1s4s5\\ r_{23} = s1(c23c4s5+s23c5)+c1s4s5\\ r_{33} = -s23c4s5+c23c5\\ \\ t_x = c1(-c23a3+s23d4+a1+a2c2)\\ t_y = s1(-c23a3+s23d4+a1+a2c2)\\ t_z = s23a3+c23d4-a2s2+d1\\ \end{array}$

Examples:: testRobotViper650-frames.cpp, and testRobotViper850-frames.cpp.

Definition at line 810 of file vpViper.cpp.

References a1, a2, a3, d1, and d4.

Referenced by get_eJe(), and get_fJe().

◆ get_wMe()

void vpViper::get_wMe ( vpHomogeneousMatrix & wMe ) const

Return the transformation between the wrist frame and the end-effector. The wrist frame is located on the intersection of the 3 last rotations.

Parameters

wMe	The homogeneous matrix corresponding to the transformation between the wrist frame and the end-effector frame (wMe).

Definition at line 874 of file vpViper.cpp.

References d6, and vpHomogeneousMatrix::eye().

Referenced by get_eJe(), get_fJe(), and getInverseKinematics().

◆ getCoupl56()

double vpViper::getCoupl56 ( ) const

Return the coupling factor between join 5 and joint 6.

This factor should be only useful when motor positions are considered. Since the positions returned by the robot are joint positions which takes into account the coupling factor, it has not to be considered in the modelization of the robot.

Definition at line 1220 of file vpViper.cpp.

References c56.

◆ getForwardKinematics()

vpHomogeneousMatrix vpViper::getForwardKinematics ( const vpColVector & q ) const

Compute the forward kinematics (direct geometric model) as an homogeneous matrix.

By forward kinematics we mean here the position and the orientation of the camera relative to the base frame given the six joint positions.

This method is the same than get_fMc(const vpColVector & q).

Parameters

q	: A six dimension vector corresponding to the robot joint positions expressed in radians.

Returns: The homogeneous matrix $^f{\bf M}_c$ corresponding to the direct geometric model which expresses the transformation between the base frame and the camera frame.

See also: get_fMc(const vpColVector & q); getInverseKinematics()

Definition at line 121 of file vpViper.cpp.

References get_fMc(), joint_max, and joint_min.

◆ getInverseKinematics()

unsigned int vpViper::getInverseKinematics	(	const vpHomogeneousMatrix &	fMc,
		vpColVector &	q,
		const bool &	verbose = `false`
	)		const

Compute the inverse kinematics (inverse geometric model).

By inverse kinematics we mean here the six joint values given the position and the orientation of the camera frame relative to the base frame.

Parameters

fMc	: Homogeneous matrix $^f{\bf M}_c$ describing the transformation from base frame to the camera frame.
q	: In input, a six dimension vector corresponding to the current joint positions expressed in radians. In output, the solution of the inverse kinematics, ie. the joint positions corresponding to $^f{\bf M}_c$ .
verbose	: Add extra printings.

Returns: Add printings if no solution was found.; The number of solutions (1 to 8) of the inverse geometric model. O, if no solution can be found.

The code below shows how to compute the inverse geometric model:

vpColVector q1(6), q2(6);
vpHomogeneousMatrix fMc;
vpViper robot;
// Get the current joint position of the robot
robot.getPosition(vpRobot::ARTICULAR_FRAME, q1);
// Compute the pose of the camera in the reference frame using the
// direct geometric model
fMc = robot.getForwardKinematics(q1);
// this is similar to  fMc = robot.get_fMc(q1);
// or robot.get_fMc(q1, fMc);
// Compute the inverse geometric model
int nbsol; // number of solutions (0, 1 to 8) of the inverse geometric model
// get the nearest solution to the current joint position
nbsol = robot.getInverseKinematics(fMc, q1);
if (nbsol == 0)
  std::cout << "No solution of the inverse geometric model " << std::endl;
else if (nbsol >= 1)
  std::cout << "Nearest solution: " << q1 << std::endl;

See also: getForwardKinematics(), getInverseKinematicsWrist

Examples:: testRobotViper650-frames.cpp, and testRobotViper850-frames.cpp.

Definition at line 563 of file vpViper.cpp.

References get_eMc(), get_wMe(), getInverseKinematicsWrist(), and vpHomogeneousMatrix::inverse().

Referenced by vpSimulatorViper850::initialiseCameraRelativeToObject(), vpSimulatorViper850::setPosition(), vpRobotViper650::setPosition(), and vpRobotViper850::setPosition().

◆ getInverseKinematicsWrist()

unsigned int vpViper::getInverseKinematicsWrist	(	const vpHomogeneousMatrix &	fMw,
		vpColVector &	q,
		const bool &	verbose = `false`
	)		const

Compute the inverse kinematics (inverse geometric model).

By inverse kinematics we mean here the six joint values given the position and the orientation of the camera frame relative to the base frame.

Parameters

fMw	: Homogeneous matrix $^f{\bf M}_w$ describing the transformation from base frame to the wrist frame.
q	: In input, a six dimension vector corresponding to the current joint positions expressed in radians. In output, the solution of the inverse kinematics, ie. the joint positions corresponding to $^f{\bf M}_w$ .
verbose	: Add extra printings.

Returns: Add printings if no solution was found.; The number of solutions (1 to 8) of the inverse geometric model. O, if no solution can be found.

The code below shows how to compute the inverse geometric model:

vpColVector q1(6), q2(6);
vpHomogeneousMatrix fMw;
vpViper robot;
// Get the current joint position of the robot
robot.getPosition(vpRobot::ARTICULAR_FRAME, q1);
// Compute the pose of the wrist in the reference frame using the
// direct geometric model
robot.get_fMw(q1, fMw);
// Compute the inverse geometric model
int nbsol; // number of solutions (0, 1 to 8) of the inverse geometric model
// get the nearest solution to the current joint position
nbsol = robot.getInverseKinematicsWrist(fMw, q1);
if (nbsol == 0)
  std::cout << "No solution of the inverse geometric model " << std::endl;
else if (nbsol >= 1)
  std::cout << "Nearest solution: " << q1 << std::endl;

See also: getForwardKinematics(), getInverseKinematics()

Definition at line 222 of file vpViper.cpp.

References a1, a2, a3, d1, d4, vpArray2D< Type >::getRows(), njoint, vpMath::rad(), vpColVector::resize(), and vpMath::sqr().

Referenced by getInverseKinematics().

◆ getJointMax()

vpColVector vpViper::getJointMax ( ) const

Get maximal joint values.

Returns: A 6-dimension vector that contains the maximal joint values for the 6 dof. All the values are expressed in radians.

Examples:: servoViper850Point2DArtVelocity-jointAvoidance-basic.cpp, servoViper850Point2DArtVelocity-jointAvoidance-gpa.cpp, and servoViper850Point2DArtVelocity-jointAvoidance-large.cpp.

Definition at line 1208 of file vpViper.cpp.

References joint_max.

◆ getJointMin()

vpColVector vpViper::getJointMin ( ) const

Get minimal joint values.

Returns: A 6-dimension vector that contains the minimal joint values for the 6 dof. All the values are expressed in radians.

Examples:: servoViper850Point2DArtVelocity-jointAvoidance-basic.cpp, servoViper850Point2DArtVelocity-jointAvoidance-gpa.cpp, and servoViper850Point2DArtVelocity-jointAvoidance-large.cpp.

Definition at line 1199 of file vpViper.cpp.

References joint_min.

◆ set_eMc() [1/2]

void vpViper::set_eMc ( const vpHomogeneousMatrix & eMc_ )

virtual

Set the geometric transformation between the end-effector frame and the tool frame (commonly a camera).

Parameters

eMc_	: Transformation between the end-effector frame and the tool frame.

Reimplemented in vpRobotViper850, and vpRobotViper650.

Definition at line 1230 of file vpViper.cpp.

References vpRxyzVector::buildFrom(), eMc, erc, etc, and vpHomogeneousMatrix::extract().

Referenced by vpRobotViper650::getControlMode(), vpRobotViper850::getControlMode(), vpViper650::init(), vpViper850::init(), vpViper650::parseConfigFile(), vpViper850::parseConfigFile(), vpRobotViper650::set_eMc(), and vpRobotViper850::set_eMc().

◆ set_eMc() [2/2]

void vpViper::set_eMc	(	const vpTranslationVector &	etc_,
		const vpRxyzVector &	erc_
	)

virtual

Set the geometric transformation between the end-effector frame and the tool frame (commonly a camera frame).

Parameters

etc_	: Translation between the end-effector frame and the tool frame.
erc_	: Rotation between the end-effector frame and the tool frame using the Euler angles in radians with the XYZ convention.

Reimplemented in vpRobotViper850, and vpRobotViper650.

Definition at line 1248 of file vpViper.cpp.

References vpHomogeneousMatrix::buildFrom(), eMc, erc, and etc.

Friends And Related Function Documentation

◆ operator<<

VISP_EXPORT std::ostream& operator<<	(	std::ostream &	os,
		const vpViper &	viper
	)

friend

Print on the output stream os the robot parameters (joint min/max, coupling factor between axis 5 and 6, hand-to-eye constant homogeneous matrix $^e{\bf M}_c$ .