ViSP  2.8.0

#include <vpViper850.h>

+ Inheritance diagram for vpViper850:

Public Types

enum  vpToolType { TOOL_MARLIN_F033C_CAMERA, TOOL_PTGREY_FLEA2_CAMERA, TOOL_SCHUNK_GRIPPER_CAMERA, TOOL_GENERIC_CAMERA }
 

Public Member Functions

 vpViper850 ()
 
virtual ~vpViper850 ()
 
void init (void)
 
void init (const char *camera_extrinsic_parameters)
 
void init (vpViper850::vpToolType tool, vpCameraParameters::vpCameraParametersProjType projModel=vpCameraParameters::perspectiveProjWithoutDistortion)
 
vpCameraParameters::vpCameraParametersProjType getCameraParametersProjType ()
 
void getCameraParameters (vpCameraParameters &cam, const unsigned int &image_width, const unsigned int &image_height)
 
void getCameraParameters (vpCameraParameters &cam, const vpImage< unsigned char > &I)
 
void getCameraParameters (vpCameraParameters &cam, const vpImage< vpRGBa > &I)
 
vpToolType getToolType ()
 
void parseConfigFile (const char *filename)
 
vpHomogeneousMatrix getForwardKinematics (const vpColVector &q)
 
unsigned int getInverseKinematicsWrist (const vpHomogeneousMatrix &fMw, vpColVector &q, const bool &verbose=false)
 
unsigned int getInverseKinematics (const vpHomogeneousMatrix &fMc, vpColVector &q, const bool &verbose=false)
 
vpHomogeneousMatrix get_fMc (const vpColVector &q)
 
void get_fMc (const vpColVector &q, vpHomogeneousMatrix &fMc)
 
void get_fMw (const vpColVector &q, vpHomogeneousMatrix &fMw)
 
void get_wMe (vpHomogeneousMatrix &wMe)
 
void get_eMc (vpHomogeneousMatrix &eMc)
 
void get_fMe (const vpColVector &q, vpHomogeneousMatrix &fMe)
 
void get_cMe (vpHomogeneousMatrix &cMe)
 
void get_cVe (vpVelocityTwistMatrix &cVe)
 
void get_fJw (const vpColVector &q, vpMatrix &fJw)
 
void get_fJe (const vpColVector &q, vpMatrix &fJe)
 
void get_eJe (const vpColVector &q, vpMatrix &eJe)
 
vpColVector getJointMin ()
 
vpColVector getJointMax ()
 
double getCoupl56 ()
 

Static Public Attributes

static const char *const CONST_EMC_MARLIN_F033C_WITHOUT_DISTORTION_FILENAME = "Z:/robot/Viper850/current/include/const_eMc_MarlinF033C_without_distortion_Viper850.cnf"
 
static const char *const CONST_EMC_MARLIN_F033C_WITH_DISTORTION_FILENAME = "Z:/robot/Viper850/current/include/const_eMc_MarlinF033C_with_distortion_Viper850.cnf"
 
static const char *const CONST_EMC_PTGREY_FLEA2_WITHOUT_DISTORTION_FILENAME = "Z:/robot/Viper850/current/include/const_eMc_PTGreyFlea2_without_distortion_Viper850.cnf"
 
static const char *const CONST_EMC_PTGREY_FLEA2_WITH_DISTORTION_FILENAME = "Z:/robot/Viper850/current/include/const_eMc_PTGreyFlea2_with_distortion_Viper850.cnf"
 
static const char *const CONST_EMC_SCHUNK_GRIPPER_WITHOUT_DISTORTION_FILENAME = "Z:/robot/Viper850/current/include/const_eMc_schunk_gripper_without_distortion_Viper850.cnf"
 
static const char *const CONST_EMC_SCHUNK_GRIPPER_WITH_DISTORTION_FILENAME = "Z:/robot/Viper850/current/include/const_eMc_schunk_gripper_with_distortion_Viper850.cnf"
 
static const char *const CONST_EMC_GENERIC_WITHOUT_DISTORTION_FILENAME = "Z:/robot/Viper850/current/include/const_eMc_generic_without_distortion_Viper850.cnf"
 
static const char *const CONST_EMC_GENERIC_WITH_DISTORTION_FILENAME = "Z:/robot/Viper850/current/include/const_eMc_generic_with_distortion_Viper850.cnf"
 
static const char *const CONST_CAMERA_FILENAME = "Z:/robot/Viper850/current/include/const_camera_Viper850.xml"
 
static const char *const CONST_MARLIN_F033C_CAMERA_NAME = "Marlin-F033C-12mm"
 
static const char *const CONST_PTGREY_FLEA2_CAMERA_NAME = "PTGrey-Flea2-6mm"
 
static const char *const CONST_SCHUNK_GRIPPER_CAMERA_NAME = "Schunk-Gripper-PTGrey-Flea2-6mm"
 
static const char *const CONST_GENERIC_CAMERA_NAME = "Generic-camera"
 
static const vpToolType defaultTool = vpViper850::TOOL_PTGREY_FLEA2_CAMERA
 
static const unsigned int njoint = 6
 

Protected Member Functions

void setToolType (vpViper850::vpToolType tool)
 

Protected Attributes

vpToolType tool_current
 
vpCameraParameters::vpCameraParametersProjType projModel
 
vpHomogeneousMatrix eMc
 
vpTranslationVector etc
 
vpRxyzVector erc
 
double a1
 
double d1
 
double a2
 
double a3
 
double d4
 
double d6
 
double c56
 
vpColVector joint_max
 
vpColVector joint_min
 

Detailed Description

Modelisation of the ADEPT Viper 850 robot.

Examples:
testViper850.cpp.

Definition at line 66 of file vpViper850.h.

Member Enumeration Documentation

List of possible tools that can be attached to the robot end-effector.

Enumerator
TOOL_MARLIN_F033C_CAMERA 

Marlin F033C camera.

TOOL_PTGREY_FLEA2_CAMERA 

Point Grey Flea 2 camera.

TOOL_SCHUNK_GRIPPER_CAMERA 

Camera attached to the Schunk gripper.

TOOL_GENERIC_CAMERA 

A generic camera.

Definition at line 91 of file vpViper850.h.

Constructor & Destructor Documentation

vpViper850::vpViper850 ( )

Default constructor. Sets the specific parameters like the Denavit Hartenberg parameters.

Definition at line 141 of file vpViper850.cpp.

References vpViper::a1, vpViper::a2, vpViper::a3, vpViper::c56, vpViper::d1, vpViper::d4, vpViper::d6, init(), vpViper::joint_max, vpViper::joint_min, and vpMath::rad().

virtual vpViper850::~vpViper850 ( )
inlinevirtual

Definition at line 102 of file vpViper850.h.

Member Function Documentation

void vpViper::get_cMe ( vpHomogeneousMatrix cMe)
inherited

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 931 of file vpViper.cpp.

References vpViper::eMc, and vpHomogeneousMatrix::inverse().

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

void vpViper::get_cVe ( vpVelocityTwistMatrix cVe)
inherited

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 952 of file vpViper.cpp.

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

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

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 985 of file vpViper.cpp.

References vpHomogeneousMatrix::extract(), vpViper::get_fJw(), vpViper::get_fMw(), vpViper::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().

void vpViper::get_eMc ( vpHomogeneousMatrix eMc)
inherited

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()

Definition at line 914 of file vpViper.cpp.

References vpViper::eMc.

Referenced by vpViper::getInverseKinematics().

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

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 1177 of file vpViper.cpp.

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

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

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

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 1071 of file vpViper.cpp.

References vpViper::a1, vpViper::a2, vpViper::a3, vpViper::d4, and vpMatrix::resize().

Referenced by vpViper::get_eJe(), and vpViper::get_fJe().

vpHomogeneousMatrix vpViper::get_fMc ( const vpColVector q)
inherited

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:
testRobotViper850Pose.cpp.

Definition at line 614 of file vpViper.cpp.

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

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

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.
fMcThe 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 644 of file vpViper.cpp.

References vpViper::eMc, and vpViper::get_fMe().

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

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.
fMeThe 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 <visp/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:
testRobotViper850.cpp, and testViper850.cpp.

Definition at line 731 of file vpViper.cpp.

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

Referenced by vpViper::get_fMc().

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

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.
fMwThe 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

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

Definition at line 827 of file vpViper.cpp.

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

Referenced by vpViper::get_eJe(), and vpViper::get_fJe().

void vpViper::get_wMe ( vpHomogeneousMatrix wMe)
inherited

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

Definition at line 893 of file vpViper.cpp.

References vpViper::d6, and vpHomogeneousMatrix::setIdentity().

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

void vpViper850::getCameraParameters ( vpCameraParameters cam,
const unsigned int &  image_width,
const unsigned int &  image_height 
)

Get the current intrinsic camera parameters obtained by calibration.

Warning
This method needs XML library to parse the file defined in vpViper850::CONST_CAMERA_FILENAME and containing the camera parameters. If XML is detected by ViSP, VISP_HAVE_XML2 macro is defined in include/visp/vpConfig.h file.
Thid method needs also an access to the file located on Inria's NAS server and containing the camera parameters in XML format. This access is available if VISP_HAVE_ACCESS_TO_NAS macro is defined in include/visp/vpConfig.h file.
  • If VISP_HAVE_ACCESS_TO_NAS and VISP_HAVE_XML2 macros are defined, this method gets the camera parameters from /udd/fspindle/robot/Viper850/current/include/const_camera_Viper850.xml config file.
  • If these two macros are not defined, this method set the camera parameters to default one.
Parameters
cam: In output, camera parameters to fill.
image_width: Image width used to compute camera calibration.
image_height: Image height used to compute camera calibration.

The code below shows how to get the camera parameters of the camera attached to the robot.

#include <visp/vpConfig.h>
#include <visp/vpImage.h>
#include <visp/vp1394TwoGrabber.h>
#include <visp/vpViper850.h>
#include <visp/vpRobotViper850.h>
int main()
{
#ifdef VISP_HAVE_DC1394_2
// Acquire an image to update image structure
g.acquire(I) ;
#endif
#ifdef VISP_HAVE_VIPER850
#else
vpViper850 robot;
#endif
// Get the intrinsic camera parameters depending on the image size
// Camera parameters are read from
// /udd/fspindle/robot/Viper850/current/include/const_camera_Viper850.xml
// if VISP_HAVE_ACCESS_TO_NAS and VISP_HAVE_XML2 macros are defined
// in vpConfig.h file
try {
robot.getCameraParameters (cam, I.getWidth(), I.getHeight());
}
catch(...) {
std::cout << "Cannot get camera parameters for image: " << I.getWidth() << " x " << I.getHeight() << std::endl;
}
std::cout << "Camera parameters: " << cam << std::endl;
}
Exceptions
vpRobotException::readingParametersError: If the camera parameters are not found.
Examples:
servoViper850FourPoints2DArtVelocityInteractionCurrent.cpp, servoViper850FourPoints2DArtVelocityInteractionDesired.cpp, servoViper850FourPoints2DCamVelocityInteractionCurrent.cpp, servoViper850FourPointsKinect.cpp, servoViper850Point2DArtVelocity-jointAvoidance-basic.cpp, servoViper850Point2DArtVelocity-jointAvoidance-gpa.cpp, servoViper850Point2DArtVelocity.cpp, servoViper850Point2DCamVelocity.cpp, servoViper850Point2DCamVelocityKalman.cpp, testRobotViper850.cpp, testRobotViper850Pose.cpp, and testViper850.cpp.

Definition at line 575 of file vpViper850.cpp.

References CONST_CAMERA_FILENAME, CONST_GENERIC_CAMERA_NAME, CONST_MARLIN_F033C_CAMERA_NAME, CONST_PTGREY_FLEA2_CAMERA_NAME, CONST_SCHUNK_GRIPPER_CAMERA_NAME, getToolType(), vpCameraParameters::initPersProjWithDistortion(), vpCameraParameters::initPersProjWithoutDistortion(), vpXmlParserCamera::parse(), vpCameraParameters::perspectiveProjWithDistortion, vpCameraParameters::perspectiveProjWithoutDistortion, projModel, vpRobotException::readingParametersError, vpXmlParserCamera::SEQUENCE_OK, TOOL_GENERIC_CAMERA, TOOL_MARLIN_F033C_CAMERA, TOOL_PTGREY_FLEA2_CAMERA, TOOL_SCHUNK_GRIPPER_CAMERA, vpERROR_TRACE, and vpTRACE.

Referenced by getCameraParameters().

void vpViper850::getCameraParameters ( vpCameraParameters cam,
const vpImage< unsigned char > &  I 
)

Get the current intrinsic camera parameters obtained by calibration.

Warning
This method needs XML library to parse the file defined in vpViper850::CONST_CAMERA_FILENAME and containing the camera parameters. If XML is detected by ViSP, VISP_HAVE_XML2 macro is defined in include/visp/vpConfig.h file.
Thid method needs also an access to the file located on Inria's NAS server and containing the camera parameters in XML format. This access is available if VISP_HAVE_ACCESS_TO_NAS macro is defined in include/visp/vpConfig.h file.
  • If VISP_HAVE_ACCESS_TO_NAS and VISP_HAVE_XML2 macros are defined, this method gets the camera parameters from /udd/fspindle/robot/Viper850/current/include/const_camera_Viper850.xml config file.
  • If these two macros are not defined, this method set the camera parameters to default one.
Parameters
cam: In output, camera parameters to fill.
I: A B&W image send by the current camera in use.
#include <visp/vpConfig.h>
#include <visp/vpImage.h>
#include <visp/vp1394TwoGrabber.h>
#include <visp/vpViper850.h>
#include <visp/vpRobotViper850.h>
int main()
{
#ifdef VISP_HAVE_DC1394_2
// Acquire an image to update image structure
g.acquire(I) ;
#endif
#ifdef VISP_HAVE_VIPER850
#else
vpViper850 robot;
#endif
// Get the intrinsic camera parameters depending on the image size
try {
robot.getCameraParameters (cam, I);
}
catch(...) {
std::cout << "Cannot get camera parameters for image: " << I.getWidth() << " x " << I.getHeight() << std::endl;
}
std::cout << "Camera parameters: " << cam << std::endl;
}
Exceptions
vpRobotException::readingParametersError: If the camera parameters are not found.

Definition at line 798 of file vpViper850.cpp.

References getCameraParameters(), vpImage< Type >::getHeight(), and vpImage< Type >::getWidth().

void vpViper850::getCameraParameters ( vpCameraParameters cam,
const vpImage< vpRGBa > &  I 
)

Get the current intrinsic camera parameters obtained by calibration.

Warning
This method needs XML library to parse the file defined in vpViper850::CONST_CAMERA_FILENAME and containing the camera parameters. If XML is detected by ViSP, VISP_HAVE_XML2 macro is defined in include/visp/vpConfig.h file.
Thid method needs also an access to the file located on Inria's NAS server and containing the camera parameters in XML format. This access is available if VISP_HAVE_ACCESS_TO_NAS macro is defined in include/visp/vpConfig.h file.
  • If VISP_HAVE_ACCESS_TO_NAS and VISP_HAVE_XML2 macros are defined, this method gets the camera parameters from /udd/fspindle/robot/Viper850/current/include/const_camera_Viper850.xml config file.
  • If these two macros are not defined, this method set the camera parameters to default one.
Parameters
cam: In output, camera parameters to fill.
I: A color image send by the current camera in use.
#include <visp/vpConfig.h>
#include <visp/vpImage.h>
#include <visp/vp1394TwoGrabber.h>
#include <visp/vpViper850.h>
#include <visp/vpRobotViper850.h>
int main()
{
vpImage<vpRGBa> I(480, 640);
#ifdef VISP_HAVE_DC1394_2
// Acquire an image to update image structure
g.acquire(I) ;
#endif
#ifdef VISP_HAVE_VIPER850
#else
vpViper850 robot;
#endif
// Get the intrinsic camera parameters depending on the image size
try {
robot.getCameraParameters (cam, I);
}
catch(...) {
std::cout << "Cannot get camera parameters for image: " << I.getWidth() << " x " << I.getHeight() << std::endl;
}
std::cout << "Camera parameters: " << cam << std::endl;
}
Exceptions
vpRobotException::readingParametersError: If the camera parameters are not found.

Definition at line 868 of file vpViper850.cpp.

References getCameraParameters(), vpImage< Type >::getHeight(), and vpImage< Type >::getWidth().

vpCameraParameters::vpCameraParametersProjType vpViper850::getCameraParametersProjType ( )
inline

Get the current camera model projection type.

Definition at line 114 of file vpViper850.h.

double vpViper::getCoupl56 ( )
inherited

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 1248 of file vpViper.cpp.

References vpViper::c56.

vpHomogeneousMatrix vpViper::getForwardKinematics ( const vpColVector q)
inherited

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 128 of file vpViper.cpp.

References vpViper::get_fMc().

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

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);
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

Definition at line 576 of file vpViper.cpp.

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

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

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

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);
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 231 of file vpViper.cpp.

References vpViper::a1, vpViper::a2, vpViper::a3, vpViper::d1, vpViper::d4, vpMatrix::getRows(), vpViper::njoint, vpMath::rad(), vpColVector::resize(), and vpMath::sqr().

Referenced by vpViper::getInverseKinematics().

vpColVector vpViper::getJointMax ( )
inherited

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, and servoViper850Point2DArtVelocity-jointAvoidance-gpa.cpp.

Definition at line 1232 of file vpViper.cpp.

References vpViper::joint_max.

vpColVector vpViper::getJointMin ( )
inherited

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, and servoViper850Point2DArtVelocity-jointAvoidance-gpa.cpp.

Definition at line 1219 of file vpViper.cpp.

References vpViper::joint_min.

vpToolType vpViper850::getToolType ( )
inline

Get the current tool type.

Definition at line 126 of file vpViper850.h.

Referenced by getCameraParameters(), and vpSimulatorViper850::getCameraParameters().

void vpViper850::init ( void  )

Initialize the robot with the default tool vpViper850::defaultTool.

Examples:
testViper850.cpp.

Definition at line 174 of file vpViper850.cpp.

References defaultTool.

Referenced by init(), vpRobotViper850::init(), and vpViper850().

void vpViper850::init ( const char *  camera_extrinsic_parameters)

Read files containing the constant parameters related to the robot tools in order to set the end-effector to camera transformation.

Warning
This function is only available if the macro VISP_HAVE_ACCESS_TO_NAS is defined in vpConfig.h.
Parameters
camera_extrinsic_parameters: Filename containing the camera extrinsic parameters.

Definition at line 194 of file vpViper850.cpp.

References parseConfigFile().

void vpViper850::parseConfigFile ( const char *  filename)

This function gets the robot constant parameters from a file.

Warning
This function is only available if the macro VISP_HAVE_ACCESS_TO_NAS is defined in vpConfig.h.
Parameters
filename: File name containing the robot constant parameters, like the hand-to-eye transformation.

Definition at line 415 of file vpViper850.cpp.

References vpHomogeneousMatrix::buildFrom(), vpViper::eMc, vpViper::erc, vpViper::etc, vpRobotException::readingParametersError, and vpERROR_TRACE.

Referenced by init().

void vpViper850::setToolType ( vpViper850::vpToolType  tool)
inlineprotected

Set the current tool type.

Definition at line 136 of file vpViper850.h.

Referenced by init(), vpSimulatorViper850::init(), and vpRobotViper850::init().

Member Data Documentation

double vpViper::c56
protectedinherited

Mechanical coupling between joint 5 and joint 6.

Definition at line 158 of file vpViper.h.

Referenced by vpViper::getCoupl56(), vpViper::vpViper(), vpViper650::vpViper650(), and vpViper850().

const char *const vpViper850::CONST_CAMERA_FILENAME = "Z:/robot/Viper850/current/include/const_camera_Viper850.xml"
static

Definition at line 80 of file vpViper850.h.

Referenced by getCameraParameters().

const char *const vpViper850::CONST_EMC_GENERIC_WITH_DISTORTION_FILENAME = "Z:/robot/Viper850/current/include/const_eMc_generic_with_distortion_Viper850.cnf"
static

Definition at line 79 of file vpViper850.h.

Referenced by init().

const char *const vpViper850::CONST_EMC_GENERIC_WITHOUT_DISTORTION_FILENAME = "Z:/robot/Viper850/current/include/const_eMc_generic_without_distortion_Viper850.cnf"
static

Definition at line 78 of file vpViper850.h.

Referenced by init().

const char *const vpViper850::CONST_EMC_MARLIN_F033C_WITH_DISTORTION_FILENAME = "Z:/robot/Viper850/current/include/const_eMc_MarlinF033C_with_distortion_Viper850.cnf"
static

Definition at line 73 of file vpViper850.h.

Referenced by init().

const char *const vpViper850::CONST_EMC_MARLIN_F033C_WITHOUT_DISTORTION_FILENAME = "Z:/robot/Viper850/current/include/const_eMc_MarlinF033C_without_distortion_Viper850.cnf"
static

Files where constant tranformation between end-effector and camera frame are stored.

Definition at line 72 of file vpViper850.h.

Referenced by init().

const char *const vpViper850::CONST_EMC_PTGREY_FLEA2_WITH_DISTORTION_FILENAME = "Z:/robot/Viper850/current/include/const_eMc_PTGreyFlea2_with_distortion_Viper850.cnf"
static

Definition at line 75 of file vpViper850.h.

Referenced by init().

const char *const vpViper850::CONST_EMC_PTGREY_FLEA2_WITHOUT_DISTORTION_FILENAME = "Z:/robot/Viper850/current/include/const_eMc_PTGreyFlea2_without_distortion_Viper850.cnf"
static

Definition at line 74 of file vpViper850.h.

Referenced by init().

const char *const vpViper850::CONST_EMC_SCHUNK_GRIPPER_WITH_DISTORTION_FILENAME = "Z:/robot/Viper850/current/include/const_eMc_schunk_gripper_with_distortion_Viper850.cnf"
static

Definition at line 77 of file vpViper850.h.

Referenced by init().

const char *const vpViper850::CONST_EMC_SCHUNK_GRIPPER_WITHOUT_DISTORTION_FILENAME = "Z:/robot/Viper850/current/include/const_eMc_schunk_gripper_without_distortion_Viper850.cnf"
static

Definition at line 76 of file vpViper850.h.

Referenced by init().

const char *const vpViper850::CONST_GENERIC_CAMERA_NAME = "Generic-camera"
static

Definition at line 88 of file vpViper850.h.

Referenced by getCameraParameters().

const char *const vpViper850::CONST_MARLIN_F033C_CAMERA_NAME = "Marlin-F033C-12mm"
static

Name of the camera attached to the end-effector.

Definition at line 85 of file vpViper850.h.

Referenced by getCameraParameters(), and vpSimulatorViper850::getCameraParameters().

const char *const vpViper850::CONST_PTGREY_FLEA2_CAMERA_NAME = "PTGrey-Flea2-6mm"
static

Definition at line 86 of file vpViper850.h.

Referenced by getCameraParameters(), and vpSimulatorViper850::getCameraParameters().

const char *const vpViper850::CONST_SCHUNK_GRIPPER_CAMERA_NAME = "Schunk-Gripper-PTGrey-Flea2-6mm"
static

Definition at line 87 of file vpViper850.h.

Referenced by getCameraParameters().

double vpViper::d6
protectedinherited
const vpViper850::vpToolType vpViper850::defaultTool = vpViper850::TOOL_PTGREY_FLEA2_CAMERA
static

Default tool attached to the robot end effector.

Examples:
testRobotViper850Pose.cpp.

Definition at line 99 of file vpViper850.h.

Referenced by init(), vpSimulatorViper850::init(), and vpRobotViper850::init().

vpCameraParameters::vpCameraParametersProjType vpViper850::projModel
protected

Definition at line 144 of file vpViper850.h.

Referenced by getCameraParameters(), init(), and vpSimulatorViper850::init().

vpToolType vpViper850::tool_current
protected

Current tool in use.

Definition at line 138 of file vpViper850.h.