class mrpt::nav::CRobot2NavInterfaceForSimulator_DiffDriven¶

CRobot2NavInterface implemented for a simulator object based on mrpt::kinematics::CVehicleSimul_DiffDriven Only senseObstacles() remains virtual for the user to implement it.

#include <mrpt/nav/reactive/CRobot2NavInterfaceForSimulator.h>

class CRobot2NavInterfaceForSimulator_DiffDriven: public mrpt::nav::CRobot2NavInterface
{
public:
    // construction

    CRobot2NavInterfaceForSimulator_DiffDriven(mrpt::kinematics::CVehicleSimul_DiffDriven& simul);

    //
methods

    virtual bool getCurrentPoseAndSpeeds(
        mrpt::math::TPose2D& curPose,
        mrpt::math::TTwist2D& curVelGlobal,
        mrpt::system::TTimeStamp& timestamp,
        mrpt::math::TPose2D& curOdometry,
        std::string& frame_id
        );

    virtual bool changeSpeeds(const mrpt::kinematics::CVehicleVelCmd& vel_cmd);
    virtual bool stop(bool isEmergencyStop);
    virtual mrpt::kinematics::CVehicleVelCmd::Ptr getStopCmd();
    virtual mrpt::kinematics::CVehicleVelCmd::Ptr getEmergencyStopCmd();
    virtual double getNavigationTime();
    virtual void resetNavigationTimer();
};

Inherited Members¶

public:
    // structs

    struct TMsg;

    //
methods

    virtual void sendNavigationStartEvent();
    virtual void sendNavigationEndEvent();
    virtual void sendWaypointReachedEvent(int waypoint_index, bool reached_nSkipped);
    virtual void sendNewWaypointTargetEvent(int waypoint_index);
    virtual void sendNavigationEndDueToErrorEvent();
    virtual void sendWaySeemsBlockedEvent();
    virtual void sendApparentCollisionEvent();
    virtual void sendCannotGetCloserToBlockedTargetEvent();

    virtual bool getCurrentPoseAndSpeeds(
        mrpt::math::TPose2D& curPose,
        mrpt::math::TTwist2D& curVelGlobal,
        mrpt::system::TTimeStamp& timestamp,
        mrpt::math::TPose2D& curOdometry,
        std::string& frame_id
        ) = 0;

    virtual bool changeSpeeds(const mrpt::kinematics::CVehicleVelCmd& vel_cmd) = 0;
    virtual bool changeSpeedsNOP();
    virtual bool stop(bool isEmergencyStop = true) = 0;
    virtual mrpt::kinematics::CVehicleVelCmd::Ptr getEmergencyStopCmd() = 0;
    virtual mrpt::kinematics::CVehicleVelCmd::Ptr getStopCmd() = 0;
    virtual mrpt::kinematics::CVehicleVelCmd::Ptr getAlignCmd(const double relative_heading_radians);
    virtual bool startWatchdog(float T_ms);
    virtual bool stopWatchdog();
    virtual bool senseObstacles(mrpt::maps::CSimplePointsMap& obstacles, mrpt::system::TTimeStamp& timestamp) = 0;
    virtual double getNavigationTime();
    virtual void resetNavigationTimer();

Methods¶

virtual bool getCurrentPoseAndSpeeds(
    mrpt::math::TPose2D& curPose,
    mrpt::math::TTwist2D& curVelGlobal,
    mrpt::system::TTimeStamp& timestamp,
    mrpt::math::TPose2D& curOdometry,
    std::string& frame_id
    )

Get the current pose and velocity of the robot.

The implementation should not take too much time to return, so if it might take more than ~10ms to ask the robot for the instantaneous data, it may be good enough to return the latest values from a cache which is updated in a parallel thread.

Returns:

false on any error retrieving these values from the robot.

virtual bool changeSpeeds(const mrpt::kinematics::CVehicleVelCmd& vel_cmd)

Sends a velocity command to the robot.

The number components in each command depends on children classes of mrpt::kinematics::CVehicleVelCmd. One robot may accept one or more different CVehicleVelCmd classes. This method resets the watchdog timer (that may be or may be not implemented in a particular robotic platform) started with startWatchdog()

Returns:

false on any error.