Visual Servoing Platform  version 3.5.1 under development (2022-12-04)
vpTime Namespace Reference

Functions

VISP_EXPORT std::string getDateTime (const std::string &format="%Y/%m/%d %H:%M:%S")
 
VISP_EXPORT double getMinTimeForUsleepCall ()
 
VISP_EXPORT double measureTimeSecond ()
 
VISP_EXPORT double measureTimeMs ()
 
VISP_EXPORT double measureTimeMicros ()
 
VISP_EXPORT void sleepMs (double t)
 
VISP_EXPORT int wait (double t0, double t)
 
VISP_EXPORT void wait (double t)
 

Detailed Description

Time management and measurement.

The example below shows how to synchronize a loop to a given framerate.

#include <visp3/core/vpTime.h>
int main()
{
double t;
for ( ; ; ) {
...
vpTime::wait(t, 40); // Loop time is set to 40 ms, ie 25 Hz
}
}
VISP_EXPORT int wait(double t0, double t)
VISP_EXPORT double measureTimeMs()

Function Documentation

◆ getDateTime()

VISP_EXPORT std::string vpTime::getDateTime ( const std::string &  format = "%Y/%m/%d %H:%M:%S")

◆ getMinTimeForUsleepCall()

◆ measureTimeMicros()

VISP_EXPORT double vpTime::measureTimeMicros ( )

◆ measureTimeMs()

vpTime::measureTimeMs ( )

Return the time in milliseconds since January 1st 1970.

See also
measureTimeMicros(), measureTimeSecond()
Examples
AROgre.cpp, SickLDMRS-Acq.cpp, SickLDMRS-Process.cpp, displaySequence.cpp, fernClassifier.cpp, grab1394CMU.cpp, grab1394Two.cpp, grabDirectShow.cpp, grabDirectShowMulti.cpp, grabDisk.cpp, grabRealSense.cpp, grabRealSense2.cpp, grabRealSense2_T265.cpp, grabV4l2.cpp, grabV4l2MultiCpp11Thread.cpp, manServo4PointsDisplay.cpp, manServoMomentsSimple.cpp, manSimu4Dots.cpp, manSimu4Points.cpp, mbot-apriltag-2D-half-vs.cpp, mbot-apriltag-ibvs.cpp, mbot-apriltag-pbvs.cpp, mbtGenericTrackingDepth.cpp, mbtGenericTrackingDepthOnly.cpp, movePioneer.cpp, planarObjectDetector.cpp, quadprog.cpp, quadprog_eq.cpp, servoAfma4Point2DCamVelocityKalman.cpp, servoAfma6AprilTagIBVS.cpp, servoAfma6AprilTagPBVS.cpp, servoBebop2.cpp, servoFlirPtuIBVS.cpp, servoFrankaIBVS.cpp, servoFrankaPBVS.cpp, servoMomentImage.cpp, servoMomentPolygon.cpp, servoPixhawkDroneIBVS.cpp, servoSimu4Points.cpp, servoSimuAfma6FourPoints2DCamVelocity.cpp, servoSimuCylinder.cpp, servoSimuSphere.cpp, servoSimuViper850FourPoints2DCamVelocity.cpp, servoUniversalRobotsIBVS.cpp, servoUniversalRobotsPBVS.cpp, servoViper850Point2DArtVelocity-jointAvoidance-basic.cpp, servoViper850Point2DCamVelocityKalman.cpp, simulateCircle2DCamVelocity.cpp, simulateFourPoints2DCartesianCamVelocity.cpp, simulateFourPoints2DPolarCamVelocity.cpp, sonarPioneerReader.cpp, templateTracker.cpp, testAutoThreshold.cpp, testColVector.cpp, testComedi.cpp, testConnectedComponents.cpp, testContours.cpp, testConversion.cpp, testFeatureSegment.cpp, testFloodFill.cpp, testForceTorqueAti.cpp, testForceTorqueAtiNetFTSensor.cpp, testForceTorqueIitSensor.cpp, testGenericTracker.cpp, testGenericTrackerDepth.cpp, testHistogram.cpp, testImageDifference.cpp, testImageFilter.cpp, testImageGetValue.cpp, testImageNormalizedCorrelation.cpp, testImageTemplateMatching.cpp, testImgproc.cpp, testKeyPoint-6.cpp, testMatrix.cpp, testMatrixDeterminant.cpp, testMatrixInverse.cpp, testMatrixPseudoInverse.cpp, testMouseEvent.cpp, testOccipitalStructure_Core_images.cpp, testOccipitalStructure_Core_pcl.cpp, testPerformanceLUT.cpp, testPixhawkDroneKeyboard.cpp, testRealSense2_D435.cpp, testRealSense2_SR300.cpp, testRealSense2_T265_images.cpp, testRealSense2_T265_images_odometry.cpp, testRealSense2_T265_odometry.cpp, testRealSense2_T265_undistort.cpp, testRealSense_R200.cpp, testRealSense_SR300.cpp, testRobotBebop2.cpp, testRobotFlirPtu.cpp, testRobotViper650-frames.cpp, testRobotViper850-frames.cpp, testSvd.cpp, testTime.cpp, testTukeyEstimator.cpp, testUndistortImage.cpp, trackDot.cpp, trackDot2.cpp, trackKltOpencv.cpp, tutorial-apriltag-detector-live-T265-realsense.cpp, tutorial-apriltag-detector-live-rgbd-realsense.cpp, tutorial-apriltag-detector-live-rgbd-structure-core.cpp, tutorial-apriltag-detector-live.cpp, tutorial-apriltag-detector.cpp, tutorial-dnn-object-detection-live.cpp, tutorial-face-detector-live.cpp, tutorial-grabber-1394.cpp, tutorial-grabber-basler-pylon.cpp, tutorial-grabber-bebop2.cpp, tutorial-grabber-flycapture.cpp, tutorial-grabber-opencv.cpp, tutorial-grabber-realsense-T265.cpp, tutorial-grabber-realsense.cpp, tutorial-grabber-structure-core.cpp, tutorial-grabber-v4l2.cpp, tutorial-klt-tracker.cpp, tutorial-mb-generic-tracker-live.cpp, tutorial-mb-generic-tracker-rgbd-realsense.cpp, tutorial-mb-generic-tracker-rgbd-structure-core.cpp, tutorial-mb-generic-tracker-rgbd.cpp, tutorial-pose-from-points-live.cpp, tutorial-pose-from-points-realsense-T265.cpp, tutorial-template-tracker.cpp, tutorial-video-manipulation.cpp, and tutorial-video-reader.cpp.

Referenced by vpKeyPoint::computePose(), vpKeyPoint::detect(), vpKeyPoint::extract(), vpKeyPoint::match(), vpQbSoftHand::setPosition(), vpSimulatorAfma6::setPosition(), vpChrono::start(), vpChrono::stop(), vpSimulatorAfma6::updateArticularPosition(), vpSimulatorViper850::updateArticularPosition(), vpSimulatorAfma6::vpSimulatorAfma6(), vpSimulatorViper850::vpSimulatorViper850(), and vpForceTorqueAtiNetFTSensor::waitForNewData().

◆ measureTimeSecond()

◆ sleepMs()

◆ wait() [1/2]

VISP_EXPORT void vpTime::wait ( double  t)

◆ wait() [2/2]

VISP_EXPORT int vpTime::wait ( double  t0,
double  t 
)
Examples
AROgre.cpp, AROgreBasic.cpp, displaySequence.cpp, grab1394Two.cpp, grabDisk.cpp, keyboardControlBebop2.cpp, manServo4PointsDisplay.cpp, manServoMomentsSimple.cpp, manSimu4Dots.cpp, manSimu4Points.cpp, mbtEdgeKltTracking.cpp, moveBiclops.cpp, movePioneer.cpp, ringLight.cpp, servoBebop2.cpp, servoBiclopsPoint2DArtVelocity.cpp, servoKinovaJacoCart.cpp, servoKinovaJacoJoint.cpp, servoMomentImage.cpp, servoMomentPolygon.cpp, servoPixhawkDroneIBVS.cpp, servoSimu4Points.cpp, servoSimuAfma6FourPoints2DCamVelocity.cpp, servoSimuCylinder.cpp, servoSimuSphere.cpp, servoSimuViper850FourPoints2DCamVelocity.cpp, servoViper850Point2DArtVelocity-jointAvoidance-basic.cpp, servoViper850Point2DCamVelocityKalman.cpp, simulateCircle2DCamVelocity.cpp, simulateFourPoints2DCartesianCamVelocity.cpp, simulateFourPoints2DPolarCamVelocity.cpp, sonarPioneerReader.cpp, testComedi.cpp, testFeatureSegment.cpp, testForceTorqueAti.cpp, testForceTorqueAtiNetFTSensor.cpp, testForceTorqueIitSensor.cpp, testFrankaCartForceTorque-2.cpp, testFrankaCartForceTorque.cpp, testFrankaCartVelocity-2.cpp, testFrankaCartVelocity-3.cpp, testFrankaCartVelocity.cpp, testFrankaGetPose.cpp, testFrankaJointTorque.cpp, testFrankaJointVelocity-2.cpp, testFrankaJointVelocity-3.cpp, testFrankaJointVelocity.cpp, testFrankaJointVelocityLimits.cpp, testMouseEvent.cpp, testPixhawkDroneKeyboard.cpp, testRealSense2_SR300.cpp, testRobotBebop2.cpp, testSerialRead.cpp, testThread.cpp, testTime.cpp, testUniversalRobotsCartVelocity.cpp, testUniversalRobotsGetData.cpp, testUniversalRobotsJointVelocity.cpp, testVirtuoseAfma6.cpp, trackMeNurbs.cpp, tutorial-blob-auto-tracker.cpp, tutorial-event-keyboard.cpp, tutorial-face-detector-live-threaded.cpp, tutorial-grabber-opencv-threaded.cpp, tutorial-grabber-structure-core.cpp, tutorial-grabber-v4l2-threaded.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-klt-tracker-live-v4l2.cpp, tutorial-klt-tracker.cpp, tutorial-pioneer-robot.cpp, tutorial-pose-from-points-image.cpp, tutorial-pose-from-qrcode-image.cpp, tutorial-template-tracker.cpp, tutorial-video-manipulation.cpp, and tutorial-video-reader.cpp.

Referenced by vpRobotViper850::biasForceTorqueSensor(), vpRobotViper650::biasForceTorqueSensor(), vpRobotWireFrameSimulator::getInternalView(), vpSimulatorAfma6::init(), vpTemplateTrackerZone::initClick(), vpSimulator::initMainApplication(), vpPylonGrabberGigE::loadUserSet(), vpPylonGrabberUsb::loadUserSet(), vpSimulator::mainLoop(), vpServolens::reset(), vp1394TwoGrabber::resetBus(), vpPylonGrabberGigE::saveUserSet(), vpPylonGrabberUsb::saveUserSet(), vpFlyCaptureGrabber::setCameraPower(), vpQbSoftHand::setPosition(), vpSimulatorAfma6::setPosition(), vpForceTorqueIitSensor::startStreaming(), vpSimulatorAfma6::updateArticularPosition(), vpSimulatorViper850::updateArticularPosition(), and vpRobotBiclops::vpRobotBiclopsSpeedControlLoop().