int main()
{
try {
vpHomogeneousMatrix cdMo(0, 0, 0.75, 0, 0, 0);
vpHomogeneousMatrix cMo(0.15, -0.1, 1., vpMath::rad(10), vpMath::rad(-10), vpMath::rad(50));
std::vector<vpPoint> point(4) ;
point[0].setWorldCoordinates(-0.1,-0.1, 0);
point[1].setWorldCoordinates( 0.1,-0.1, 0);
point[2].setWorldCoordinates( 0.1, 0.1, 0);
point[3].setWorldCoordinates(-0.1, 0.1, 0);
vpServo task ;
task.setServo(vpServo::EYEINHAND_CAMERA);
task.setInteractionMatrixType(vpServo::CURRENT);
task.setLambda(0.5);
vpFeaturePoint p[4], pd[4] ;
for (unsigned int i = 0 ; i < 4 ; i++) {
point[i].track(cdMo);
vpFeatureBuilder::create(pd[i], point[i]);
point[i].track(cMo);
vpFeatureBuilder::create(p[i], point[i]);
task.addFeature(p[i], pd[i]);
}
vpHomogeneousMatrix wMc, wMo;
vpSimulatorCamera robot;
robot.setSamplingTime(0.040);
robot.getPosition(wMc);
wMo = wMc * cMo;
vpImage<unsigned char> Iint(480, 640, 0) ;
vpImage<unsigned char> Iext(480, 640, 0) ;
#if defined VISP_HAVE_X11
vpDisplayX displayInt(Iint, 0, 0, "Internal view");
vpDisplayX displayExt(Iext, 670, 0, "External view");
#elif defined VISP_HAVE_GDI
vpDisplayGDI displayInt(Iint, 0, 0, "Internal view");
vpDisplayGDI displayExt(Iext, 670, 0, "External view");
#elif defined VISP_HAVE_OPENCV
vpDisplayOpenCV displayInt(Iint, 0, 0, "Internal view");
vpDisplayOpenCV displayExt(Iext, 670, 0, "External view");
#else
std::cout << "No image viewer is available..." << std::endl;
#endif
vpCameraParameters cam(840, 840, Iint.getWidth()/2, Iint.getHeight()/2);
vpHomogeneousMatrix cextMo(0,0,3, 0,0,0);
vpWireFrameSimulator sim;
sim.initScene(vpWireFrameSimulator::PLATE, vpWireFrameSimulator::D_STANDARD);
sim.setCameraPositionRelObj(cMo);
sim.setDesiredCameraPosition(cdMo);
sim.setExternalCameraPosition(cextMo);
sim.setInternalCameraParameters(cam);
sim.setExternalCameraParameters(cam);
while(1) {
robot.getPosition(wMc);
cMo = wMc.inverse() * wMo;
for (unsigned int i = 0 ; i < 4 ; i++) {
point[i].track(cMo);
vpFeatureBuilder::create(p[i], point[i]);
}
vpColVector v = task.computeControlLaw();
robot.setVelocity(vpRobot::CAMERA_FRAME, v);
sim.setCameraPositionRelObj(cMo);
vpDisplay::display(Iint) ;
vpDisplay::display(Iext) ;
sim.getInternalImage(Iint);
sim.getExternalImage(Iext);
display_trajectory(Iint, point, cMo, cam);
vpDisplay::flush(Iint);
vpDisplay::flush(Iext);
// A click in the internal view to exit
if (vpDisplay::getClick(Iint, false))
break;
vpTime::wait(1000*robot.getSamplingTime());
}
task.kill();
}
catch(vpException &e) {
std::cout << "Catch an exception: " << e << std::endl;
}
}
int
main(int argc, const char ** argv)
{
try {
bool opt_click_allowed = true;
bool opt_display = true;
// Read the command line options
if (getOptions(argc, argv, opt_click_allowed, opt_display) == false) {
exit (-1);
}
// We open two displays, one for the internal camera view, the other one for
// the external view, using either X11, GTK or GDI.
#if defined VISP_HAVE_X11
vpDisplayX displayInt;
vpDisplayX displayExt;
#elif defined VISP_HAVE_GTK
vpDisplayGTK displayInt;
vpDisplayGTK displayExt;
#elif defined VISP_HAVE_GDI
vpDisplayGDI displayInt;
vpDisplayGDI displayExt;
#elif defined VISP_HAVE_OPENCV
vpDisplayOpenCV displayInt;
vpDisplayOpenCV displayExt;
#endif
// open a display for the visualization
vpImage<unsigned char> Iint(300, 300, 0) ;
vpImage<unsigned char> Iext(300, 300, 0) ;
if (opt_display) {
displayInt.init(Iint,0,0, "Internal view") ;
displayExt.init(Iext,330,000, "External view") ;
}
vpProjectionDisplay externalview ;
double px, py ; px = py = 500 ;
double u0, v0 ; u0 = 150, v0 = 160 ;
vpCameraParameters cam(px,py,u0,v0);
int i ;
vpServo task ;
vpSimulatorCamera robot ;
std::cout << std::endl ;
std::cout << "----------------------------------------------" << std::endl ;
std::cout << " Test program for vpServo " <<std::endl ;
std::cout << " Eye-in-hand task control, articular velocity are computed"
<< std::endl ;
std::cout << " Simulation " << std::endl ;
std::cout << " task : servo 4 points " << std::endl ;
std::cout << "----------------------------------------------" << std::endl ;
std::cout << std::endl ;
// sets the initial camera location
vpHomogeneousMatrix cMo(-0.1,-0.1,1,
vpMath::rad(40), vpMath::rad(10), vpMath::rad(60)) ;
// Compute the position of the object in the world frame
vpHomogeneousMatrix wMc, wMo;
robot.getPosition(wMc) ;
wMo = wMc * cMo;
vpHomogeneousMatrix cextMo(0,0,2,
0,0,0) ;//vpMath::rad(40), vpMath::rad(10), vpMath::rad(60)) ;
// sets the point coordinates in the object frame
vpPoint point[4] ;
point[0].setWorldCoordinates(-0.1,-0.1,0) ;
point[1].setWorldCoordinates(0.1,-0.1,0) ;
point[2].setWorldCoordinates(0.1,0.1,0) ;
point[3].setWorldCoordinates(-0.1,0.1,0) ;
for (i = 0 ; i < 4 ; i++)
externalview.insert(point[i]) ;
// computes the point coordinates in the camera frame and its 2D coordinates
for (i = 0 ; i < 4 ; i++)
point[i].track(cMo) ;
// sets the desired position of the point
vpFeaturePoint p[4] ;
for (i = 0 ; i < 4 ; i++)
vpFeatureBuilder::create(p[i],point[i]) ; //retrieve x,y and Z of the vpPoint structure
// sets the desired position of the feature point s*
vpFeaturePoint pd[4] ;
pd[0].buildFrom(-0.1,-0.1, 1) ;
pd[1].buildFrom( 0.1,-0.1, 1) ;
pd[2].buildFrom( 0.1, 0.1, 1) ;
pd[3].buildFrom(-0.1, 0.1, 1) ;
// define the task
// - we want an eye-in-hand control law
// - articular velocity are computed
task.setServo(vpServo::EYEINHAND_L_cVe_eJe) ;
task.setInteractionMatrixType(vpServo::MEAN) ;
// Set the position of the camera in the end-effector frame ") ;
vpHomogeneousMatrix cMe ;
vpVelocityTwistMatrix cVe(cMe) ;
task.set_cVe(cVe) ;
// Set the Jacobian (expressed in the end-effector frame)
vpMatrix eJe ;
robot.get_eJe(eJe) ;
task.set_eJe(eJe) ;
// we want to see a point on a point
for (i = 0 ; i < 4 ; i++)
task.addFeature(p[i],pd[i]) ;
// set the gain
task.setLambda(1) ;
// Display task information " ) ;
task.print() ;
unsigned int iter=0 ;
// loop
while(iter++<200)
{
std::cout << "---------------------------------------------" << iter <<std::endl ;
vpColVector v ;
// Set the Jacobian (expressed in the end-effector frame)
// since q is modified eJe is modified
robot.get_eJe(eJe) ;
task.set_eJe(eJe) ;
// get the robot position
robot.getPosition(wMc) ;
// Compute the position of the camera wrt the object frame
cMo = wMc.inverse() * wMo;
// update new point position and corresponding features
for (i = 0 ; i < 4 ; i++)
{
point[i].track(cMo) ;
//retrieve x,y and Z of the vpPoint structure
vpFeatureBuilder::create(p[i],point[i]) ;
}
// since vpServo::MEAN interaction matrix is used, we need also to update the desired features at each iteration
pd[0].buildFrom(-0.1,-0.1, 1) ;
pd[1].buildFrom( 0.1,-0.1, 1) ;
pd[2].buildFrom( 0.1, 0.1, 1) ;
pd[3].buildFrom(-0.1, 0.1, 1) ;
if (opt_display) {
vpDisplay::display(Iint) ;
vpDisplay::display(Iext) ;
vpServoDisplay::display(task,cam,Iint) ;
externalview.display(Iext,cextMo, cMo, cam, vpColor::green) ;
vpDisplay::flush(Iint);
vpDisplay::flush(Iext);
}
// compute the control law
v = task.computeControlLaw() ;
// send the camera velocity to the controller
robot.setVelocity(vpRobot::CAMERA_FRAME, v) ;
std::cout << "|| s - s* || = " << ( task.getError() ).sumSquare() <<std::endl ;
}
// Display task information
task.print() ;
task.kill();
std::cout <<"Final robot position with respect to the object frame:\n";
cMo.print();
if (opt_display && opt_click_allowed) {
// suppressed for automate test
std::cout << "\n\nClick in the internal view window to end..." << std::endl;
vpDisplay::getClick(Iint) ;
}
return 0;
}
catch(vpException e) {
std::cout << "Catch a ViSP exception: " << e << std::endl;
return 1;
}
}
int
main(int argc, const char ** argv)
{
bool opt_display = true;
bool opt_click_allowed = true;
// Read the command line options
if (getOptions(argc, argv, opt_click_allowed, opt_display) == false) {
exit (-1);
}
vpImage<unsigned char> Iint(512,512,0) ;
vpImage<unsigned char> Iext(512,512,0) ;
// We open a window using either X11, GTK or GDI.
#if defined VISP_HAVE_X11
vpDisplayX displayInt;
vpDisplayX displayExt;
#elif defined VISP_HAVE_GTK
vpDisplayGTK displayInt;
vpDisplayGTK displayExt;
#elif defined VISP_HAVE_GDI
vpDisplayGDI displayInt;
vpDisplayGDI displayExt;
#endif
if (opt_display) {
try{
// Display size is automatically defined by the image (Iint) and (Iext) size
displayInt.init(Iint, 100, 100,"Internal view") ;
displayExt.init(Iext, (int)(130+Iint.getWidth()), 100, "External view") ;
// Display the image
// The image class has a member that specify a pointer toward
// the display that has been initialized in the display declaration
// therefore is is no longuer necessary to make a reference to the
// display variable.
vpDisplay::display(Iint) ;
vpDisplay::display(Iext) ;
vpDisplay::flush(Iint) ;
vpDisplay::flush(Iext) ;
}
catch(...)
{
vpERROR_TRACE("Error while displaying the image") ;
exit(-1);
}
}
vpProjectionDisplay externalview ;
//Set the camera parameters
double px, py ; px = py = 600 ;
double u0, v0 ; u0 = v0 = 256 ;
vpCameraParameters cam(px,py,u0,v0);
vpServo task ;
vpSimulatorCamera robot ;
// sets the initial camera location
vpHomogeneousMatrix cMo(-0.2,0.1,2,
vpMath::rad(5), vpMath::rad(5), vpMath::rad(20));
vpHomogeneousMatrix wMc, wMo;
robot.getPosition(wMc) ;
wMo = wMc * cMo; // Compute the position of the object in the world frame
// sets the final camera location (for simulation purpose)
vpHomogeneousMatrix cMod(0,0,1,
vpMath::rad(0), vpMath::rad(0), vpMath::rad(0));
// sets the cylinder coordinates in the world frame
vpCylinder cylinder(0,1,0, // direction
0,0,0, // point of the axis
0.1) ; // radius
externalview.insert(cylinder) ;
// sets the desired position of the visual feature
cylinder.track(cMod) ;
cylinder.print() ;
//Build the desired line features thanks to the cylinder and especially its paramaters in the image frame
vpFeatureLine ld[2] ;
int i ;
for(i=0 ; i < 2 ; i++)
vpFeatureBuilder::create(ld[i],cylinder,i) ;
// computes the cylinder coordinates in the camera frame and its 2D coordinates
// sets the current position of the visual feature
cylinder.track(cMo) ;
cylinder.print() ;
//Build the current line features thanks to the cylinder and especially its paramaters in the image frame
vpFeatureLine l[2] ;
for(i=0 ; i < 2 ; i++)
{
vpFeatureBuilder::create(l[i],cylinder,i) ;
l[i].print() ;
}
// define the task
// - we want an eye-in-hand control law
// - robot is controlled in the camera frame
task.setServo(vpServo::EYEINHAND_CAMERA) ;
task.setInteractionMatrixType(vpServo::DESIRED,vpServo::PSEUDO_INVERSE) ;
// it can also be interesting to test these possibilities
// task.setInteractionMatrixType(vpServo::CURRENT,vpServo::PSEUDO_INVERSE) ;
// task.setInteractionMatrixType(vpServo::MEAN, vpServo::PSEUDO_INVERSE) ;
// task.setInteractionMatrixType(vpServo::CURRENT, vpServo::PSEUDO_INVERSE) ;
// task.setInteractionMatrixType(vpServo::DESIRED, vpServo::TRANSPOSE) ;
// task.setInteractionMatrixType(vpServo::CURRENT, vpServo::TRANSPOSE) ;
// we want to see 2 lines on 2 lines
task.addFeature(l[0],ld[0]) ;
task.addFeature(l[1],ld[1]) ;
// Set the point of view of the external view
vpHomogeneousMatrix cextMo(0,0,6,
vpMath::rad(40), vpMath::rad(10), vpMath::rad(60)) ;
// Display the initial scene
vpServoDisplay::display(task,cam,Iint) ;
externalview.display(Iext,cextMo, cMo, cam, vpColor::red);
vpDisplay::flush(Iint) ;
vpDisplay::flush(Iext) ;
// Display task information
task.print() ;
if (opt_display && opt_click_allowed) {
std::cout << "\n\nClick in the internal camera view window to start..." << std::endl;
vpDisplay::getClick(Iint) ;
}
// set the gain
task.setLambda(1) ;
// Display task information
task.print() ;
unsigned int iter=0 ;
// The first loop is needed to reach the desired position
do
{
std::cout << "---------------------------------------------" << iter++ <<std::endl ;
vpColVector v ;
// get the robot position
robot.getPosition(wMc) ;
// Compute the position of the camera wrt the object frame
cMo = wMc.inverse() * wMo;
// new line position
// retrieve x,y and Z of the vpLine structure
// Compute the parameters of the cylinder in the camera frame and in the image frame
cylinder.track(cMo) ;
//Build the current line features thanks to the cylinder and especially its paramaters in the image frame
for(i=0 ; i < 2 ; i++)
{
vpFeatureBuilder::create(l[i],cylinder,i) ;
}
// Display the current scene
if (opt_display) {
vpDisplay::display(Iint) ;
vpDisplay::display(Iext) ;
vpServoDisplay::display(task,cam,Iint) ;
externalview.display(Iext,cextMo, cMo, cam, vpColor::red);
vpDisplay::flush(Iint);
vpDisplay::flush(Iext);
}
// compute the control law
v = task.computeControlLaw() ;
// send the camera velocity to the controller
robot.setVelocity(vpRobot::CAMERA_FRAME, v) ;
std::cout << "|| s - s* || = " << ( task.getError() ).sumSquare() <<std::endl ;
}
while(( task.getError() ).sumSquare() > 1e-9) ;
// Second loop is to compute the control law while taking into account the secondary task.
// In this example the secondary task is cut in four steps.
// The first one consists in impose a movement of the robot along the x axis of the object frame with a velocity of 0.5.
// The second one consists in impose a movement of the robot along the y axis of the object frame with a velocity of 0.5.
// The third one consists in impose a movement of the robot along the x axis of the object frame with a velocity of -0.5.
// The last one consists in impose a movement of the robot along the y axis of the object frame with a velocity of -0.5.
// Each steps is made during 200 iterations.
vpColVector e1(6) ; e1 = 0 ;
vpColVector e2(6) ; e2 = 0 ;
vpColVector proj_e1 ;
vpColVector proj_e2 ;
iter = 0;
double rapport = 0;
double vitesse = 0.5;
unsigned int tempo = 800;
while(iter < tempo)
{
vpColVector v ;
robot.getPosition(wMc) ;
// Compute the position of the camera wrt the object frame
cMo = wMc.inverse() * wMo;
cylinder.track(cMo) ;
for(i=0 ; i < 2 ; i++)
{
vpFeatureBuilder::create(l[i],cylinder,i) ;
}
if (opt_display)
{
vpDisplay::display(Iint) ;
vpDisplay::display(Iext) ;
vpServoDisplay::display(task,cam,Iint) ;
externalview.display(Iext,cextMo, cMo, cam, vpColor::red);
vpDisplay::flush(Iint);
vpDisplay::flush(Iext);
}
v = task.computeControlLaw() ;
if ( iter%tempo < 200 /*&& iter%tempo >= 0*/)
{
e2 = 0;
e1[0] = fabs(vitesse) ;
proj_e1 = task.secondaryTask(e1);
rapport = vitesse/proj_e1[0];
proj_e1 *= rapport ;
v += proj_e1 ;
}
if ( iter%tempo < 400 && iter%tempo >= 200)
{
e1 = 0;
e2[1] = fabs(vitesse) ;
proj_e2 = task.secondaryTask(e2);
rapport = vitesse/proj_e2[1];
proj_e2 *= rapport ;
v += proj_e2 ;
}
if ( iter%tempo < 600 && iter%tempo >= 400)
{
e2 = 0;
e1[0] = -fabs(vitesse) ;
proj_e1 = task.secondaryTask(e1);
rapport = -vitesse/proj_e1[0];
proj_e1 *= rapport ;
v += proj_e1 ;
}
if ( iter%tempo < 800 && iter%tempo >= 600)
{
e1 = 0;
e2[1] = -fabs(vitesse) ;
proj_e2 = task.secondaryTask(e2);
rapport = -vitesse/proj_e2[1];
proj_e2 *= rapport ;
v += proj_e2 ;
}
robot.setVelocity(vpRobot::CAMERA_FRAME, v);
std::cout << "|| s - s* || = " << ( task.getError() ).sumSquare() <<std::endl ;
iter++;
}
if (opt_display && opt_click_allowed) {
std::cout << "\nClick in the internal camera view window to end..." << std::endl;
vpDisplay::getClick(Iint) ;
}
// Display task information
task.print() ;
task.kill();
}
int main()
{
try {
vpHomogeneousMatrix cdMo(0, 0, 0.75, 0, 0, 0);
vpHomogeneousMatrix cMo(0.15, -0.1, 1.,
vpMath::rad(10), vpMath::rad(-10), vpMath::rad(50));
std::vector<vpPoint> point;
point.push_back( vpPoint(-0.1,-0.1, 0) );
point.push_back( vpPoint( 0.1,-0.1, 0) );
point.push_back( vpPoint( 0.1, 0.1, 0) );
point.push_back( vpPoint(-0.1, 0.1, 0) );
vpServo task ;
task.setServo(vpServo::EYEINHAND_CAMERA);
task.setInteractionMatrixType(vpServo::CURRENT);
task.setLambda(0.5);
vpFeaturePoint p[4], pd[4] ;
for (unsigned int i = 0 ; i < 4 ; i++) {
point[i].track(cdMo);
vpFeatureBuilder::create(pd[i], point[i]);
point[i].track(cMo);
vpFeatureBuilder::create(p[i], point[i]);
task.addFeature(p[i], pd[i]);
}
vpHomogeneousMatrix wMc, wMo;
vpSimulatorCamera robot;
robot.setSamplingTime(0.040);
robot.getPosition(wMc);
wMo = wMc * cMo;
vpImage<unsigned char> Iint(480, 640, 255) ;
vpImage<unsigned char> Iext(480, 640, 255) ;
#if defined(VISP_HAVE_X11)
vpDisplayX displayInt(Iint, 0, 0, "Internal view");
vpDisplayX displayExt(Iext, 670, 0, "External view");
#elif defined(VISP_HAVE_GDI)
vpDisplayGDI displayInt(Iint, 0, 0, "Internal view");
vpDisplayGDI displayExt(Iext, 670, 0, "External view");
#elif defined(VISP_HAVE_OPENCV)
vpDisplayOpenCV displayInt(Iint, 0, 0, "Internal view");
vpDisplayOpenCV displayExt(Iext, 670, 0, "External view");
#else
std::cout << "No image viewer is available..." << std::endl;
#endif
#if defined(VISP_HAVE_DISPLAY)
vpProjectionDisplay externalview;
for (unsigned int i = 0 ; i < 4 ; i++)
externalview.insert(point[i]) ;
#endif
vpCameraParameters cam(840, 840, Iint.getWidth()/2, Iint.getHeight()/2);
vpHomogeneousMatrix cextMo(0,0,3, 0,0,0);
while(1) {
robot.getPosition(wMc);
cMo = wMc.inverse() * wMo;
for (unsigned int i = 0 ; i < 4 ; i++) {
point[i].track(cMo);
vpFeatureBuilder::create(p[i], point[i]);
}
vpColVector v = task.computeControlLaw();
robot.setVelocity(vpRobot::CAMERA_FRAME, v);
vpDisplay::display(Iint) ;
vpDisplay::display(Iext) ;
display_trajectory(Iint, point, cMo, cam);
vpServoDisplay::display(task, cam, Iint, vpColor::green, vpColor::red);
#if defined(VISP_HAVE_DISPLAY)
externalview.display(Iext, cextMo, cMo, cam, vpColor::red, true);
#endif
vpDisplay::flush(Iint);
vpDisplay::flush(Iext);
// A click to exit
if (vpDisplay::getClick(Iint, false) || vpDisplay::getClick(Iext, false))
break;
vpTime::wait( robot.getSamplingTime() * 1000);
}
task.kill();
}
catch(vpException e) {
std::cout << "Catch an exception: " << e << std::endl;
}
}
