Visual Servoing Platform  version 3.6.1 under development (2024-05-28)
#include <visp3/gui/vpPlot.h>
#include <visp3/robot/vpSimulatorCamera.h>
#include <visp3/visual_features/vpFeatureBuilder.h>
#include <visp3/vs/vpServo.h>
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));
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;
vpAdaptiveGain lambda(4, 0.4, 30);
vpFeaturePoint p[4], pd[4];
for (unsigned int i = 0; i < 4; i++) {
vpFeatureBuilder::create(pd[i], point[i]);
vpFeatureBuilder::create(p[i], point[i]);
task.addFeature(p[i], pd[i]);
wMo = wMc * cMo;
vpPlot plotter(2, 250 * 2, 500, 100, 200, "Real time curves plotter");
plotter.setTitle(0, "Visual features error");
plotter.setTitle(1, "Camera velocities");
plotter.initGraph(0, 8);
plotter.initGraph(1, 6);
plotter.setLegend(0, 0, "x1");
plotter.setLegend(0, 1, "y1");
plotter.setLegend(0, 2, "x2");
plotter.setLegend(0, 3, "y2");
plotter.setLegend(0, 4, "x3");
plotter.setLegend(0, 5, "y3");
plotter.setLegend(0, 6, "x4");
plotter.setLegend(0, 7, "y4");
plotter.setLegend(1, 0, "v_x");
plotter.setLegend(1, 1, "v_y");
plotter.setLegend(1, 2, "v_z");
plotter.setLegend(1, 3, "w_x");
plotter.setLegend(1, 4, "w_y");
plotter.setLegend(1, 5, "w_z");
unsigned int iter = 0;
while (1) {
cMo = wMc.inverse() * wMo;
for (unsigned int i = 0; i < 4; i++) {
vpFeatureBuilder::create(p[i], point[i]);
plotter.plot(0, iter, task.getError());
plotter.plot(1, iter, v);
if ((task.getError()).sumSquare() < 0.0001)
std::cout << "Convergence in " << iter << " iterations" << std::endl;
plotter.saveData(0, "error.dat");
plotter.saveData(1, "vc.dat");
} catch (const vpException &e) {
std::cout << "Catch an exception: " << e << std::endl;
Adaptive gain computation.
Implementation of column vector and the associated operations.
Definition: vpColVector.h:163
static bool getClick(const vpImage< unsigned char > &I, bool blocking=true)
error that can be emitted by ViSP classes.
Definition: vpException.h:59
static void create(vpFeaturePoint &s, const vpCameraParameters &cam, const vpDot &d)
Class that defines a 2D point visual feature which is composed by two parameters that are the cartes...
void track(const vpHomogeneousMatrix &cMo)
Implementation of an homogeneous matrix and operations on such kind of matrices.
vpHomogeneousMatrix inverse() const
static double rad(double deg)
Definition: vpMath.h:127
This class enables real time drawing of 2D or 3D graphics. An instance of the class open a window whi...
Definition: vpPlot.h:109
void initGraph(unsigned int graphNum, unsigned int curveNbr)
Definition: vpPlot.cpp:202
vpImage< unsigned char > I
Definition: vpPlot.h:111
void setLegend(unsigned int graphNum, unsigned int curveNum, const std::string &legend)
Definition: vpPlot.cpp:545
void plot(unsigned int graphNum, unsigned int curveNum, double x, double y)
Definition: vpPlot.cpp:269
void setTitle(unsigned int graphNum, const std::string &title)
Definition: vpPlot.cpp:503
void saveData(unsigned int graphNum, const std::string &dataFile, const std::string &title_prefix="")
Definition: vpPlot.cpp:648
Class that defines a 3D point in the object frame and allows forward projection of a 3D point in the ...
Definition: vpPoint.h:77
void setWorldCoordinates(double oX, double oY, double oZ)
Definition: vpPoint.cpp:110
void setVelocity(const vpRobot::vpControlFrameType frame, const vpColVector &vel) vp_override
Definition: vpRobot.h:82
void setInteractionMatrixType(const vpServoIteractionMatrixType &interactionMatrixType, const vpServoInversionType &interactionMatrixInversion=PSEUDO_INVERSE)
Definition: vpServo.cpp:378
Definition: vpServo.h:155
void addFeature(vpBasicFeature &s_cur, vpBasicFeature &s_star, unsigned int select=vpBasicFeature::FEATURE_ALL)
Definition: vpServo.cpp:329
void setLambda(double c)
Definition: vpServo.h:976
void setServo(const vpServoType &servo_type)
Definition: vpServo.cpp:132
vpColVector getError() const
Definition: vpServo.h:504
vpColVector computeControlLaw()
Definition: vpServo.cpp:703
Definition: vpServo.h:196
Class that defines the simplest robot: a free flying camera.
VISP_EXPORT int wait(double t0, double t)