CPtuBase.h

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/* +------------------------------------------------------------------------+
   |                     Mobile Robot Programming Toolkit (MRPT)            |
   |                          http://www.mrpt.org/                          |
   |                                                                        |
   | Copyright (c) 2005-2018, Individual contributors, see AUTHORS file     |
   | See: http://www.mrpt.org/Authors - All rights reserved.                |
   | Released under BSD License. See details in http://www.mrpt.org/License |
   +------------------------------------------------------------------------+ */

#ifndef CPtuBase_H
#define CPtuBase_H

#include <mrpt/comms/CSerialPort.h>

namespace mrpt::hwdrivers
{
/** This class implements initialization and comunication methods to
  * control a generic Pan and Tilt Unit, working in radians.
  * \ingroup mrpt_hwdrivers_grp
  */
class CPtuBase
{
    /*************************** Atributes **********************/

   public:
    double tiltResolution, panResolution;

   protected:
    mrpt::comms::CSerialPort serPort;

    /**************************** Methods ***********************/

   public:
    /** Destructor */

    virtual ~CPtuBase(){};

    /** Search limit forward */

    virtual bool rangeMeasure() = 0;

    /** Specification of positions in absolute terms */

    virtual bool moveToAbsPos(char axis, double nRad) = 0;

    /** Query position in absolute terms */

    virtual bool absPosQ(char axis, double& nRad) = 0;

    /** Specify desired axis position as an offset from the current position. \n
    *   This method recives the number of radians to move.
    *   \code
    *   Example of use:
    *       TT-500 *
    *       A *
    *       TO * Current Tilt position is -500
    *       TO500 *
    *       A *
    *       TT * Current Pan position is 1000
    *   \endcode
    */

    virtual bool moveToOffPos(char axis, double nRad) = 0;

    /** Query position in relative terms */

    virtual bool offPosQ(char axis, double& nRad) = 0;

    /** Query max movement limit of a axis in absolute terms */

    virtual bool maxPosQ(char axis, double& nRad) = 0;

    /** Query min movement limit of a axis in absolute terms */

    virtual bool minPosQ(char axis, double& nRad) = 0;

    /** Query if exist movement limits */

    virtual bool enableLimitsQ(bool& enable) = 0;  // Query if exist some limit

    /** Enable/Disable movement limits */

    virtual bool enableLimits(bool set) = 0;

    /** With I mode (default) instructs pan-tilt unit to immediately
    *   execute positional commands. \n
    *   In S mode instructs pan-tilt unit to execute positional commands
    *   only when an Await Position Command Completion command is executed
    *   or when put into Immediate Execution Mode. \n
    *   \code
    *   Example of use of S mode:
    *       DR *
    *       S *
    *       PP1500 *
    *       TP-900 *
    *       PP * Current Pan position is 0
    *       TP * Current Tilt position is 0
    *       A *
    *       PP * Current Pan position is 1500
    *       TP * Current Tilt position is -900
    *   \endcode
    */

    virtual bool inmediateExecution(bool set) = 0;

    /** Wait the finish of the last position command to
    *   continue accept commands
    */

    virtual bool aWait(void) = 0;

    /** Inmediately stop all */

    virtual bool haltAll() = 0;

    /** Inmediately stop */

    virtual bool halt(char axis) = 0;

    /** Specification of turn speed */

    virtual bool speed(char axis, double RadSec) = 0;

    /** Query turn speed */

    virtual bool speedQ(char axis, double& RadSec) = 0;

    /** Specification (de/a)celeration in turn */

    virtual bool aceleration(char axis, double RadSec2) = 0;

    /** Query (de/a)celeration in turn */

    virtual bool acelerationQ(char axis, double& RadSec2) = 0;

    /** Specification of velocity to which start and finish
    *   the (de/a)celeration
    */

    virtual bool baseSpeed(char axis, double RadSec) = 0;

    /** Query velocity to which start and finish
    *   the (de/a)celeration
    */

    virtual bool baseSpeedQ(char axis, double& RadSec) = 0;

    /** Specification of velocity upper limit */

    virtual bool upperSpeed(char axis, double RadSec) = 0;

    /** Query velocity upper limit */

    virtual bool upperSpeedQ(char axis, double& RadSec) = 0;

    /** Specification of velocity lower limit */

    virtual bool lowerSpeed(char axis, double RadSec) = 0;

    /** Query velocity lower limit */

    virtual bool lowerSpeedQ(char axis, double& RadSec) = 0;

    /** Reset PTU to initial state */

    virtual bool reset(void) = 0;

    /** Save or restart default values */

    virtual bool save(void) = 0;

    /** Restore default values */

    virtual bool restoreDefaults(void) = 0;

    /** Restore factory default values */

    virtual bool restoreFactoryDefaults(void) = 0;

    /** Version and CopyRights */

    virtual bool version(char* nVersion) = 0;

    /** Number of version */

    virtual void nversion(double& nVersion) = 0;

    /** Query power mode */

    virtual bool powerModeQ(bool transit, char& mode) = 0;

    /** Specification of power mode */

    virtual bool powerMode(bool transit, char mode) = 0;

    /** Check if ptu is moving */

    virtual double status(double& rad) = 0;

    /** Set limits of movement */

    virtual bool setLimits(char axis, double& l, double& u) = 0;

    /* Change motion direction */

    virtual bool changeMotionDir() = 0;

    /**************************** State Queries ********************/

    /** Check errors, returns 0 if there are not errors or error code otherwise
     * **/

    virtual int checkErrors() = 0;

    /** Clear errors **/

    virtual void clearErrors() = 0;

    /*************************** Other member methods *****************/

    /** PTU and serial port initialization */

    virtual bool init(const std::string& port) = 0;

    /** Close Connection with serial port */

    virtual void close() = 0;

    /** To obtains the mistake for use discrete values when the movement
    *   is expressed in radians. Parameters are the absolute position in
    *   radians and the axis desired
    */

    virtual double radError(char axis, double nRadMoved) = 0;

    /**  To obtain the discrete value for a number of radians */

    virtual long radToPos(char axis, double nRad) = 0;

    /** To obtain the number of radians for a discrete value */

    virtual double posToRad(char axis, long nPos) = 0;

    /** Performs a scan in the axis indicated and whit the precision desired.
    *       \param <axis> {Pan or Till}
    *       \param <tWait> {Wait time betwen commands}
    *       \param <initial> {initial position}
    *       \param <final> {final position}
    *       \param <RadPre> {radians precision for the scan}
    */

    virtual bool scan(
        char axis, int wait, float initial, float final, double RadPre) = 0;

    /** Query verbose mode */

    virtual bool verboseQ(bool& modo) = 0;

    /** Set verbose. \n
    *   \conde
    *   Example of response with FV (verbose) active:
    *       FV *
    *       PP * Current pan position is 0
    *       Example of response with FT (terse) active:
    *       FT *
    *       PP * 0
    *   \endcode
    */

    virtual bool verbose(bool set) = 0;

    /** Query echo mode */

    virtual bool echoModeQ(bool& mode) = 0;

    /** Enable/Disable echo response with command. \n
    *   \code
    *   Example of use (EE supposed):
    *       PP * 22
    *       ED *
    *       <pp entered again, but not echoed>* 22
    *   \endcode
    */

    virtual bool echoMode(bool mode) = 0;

    /** Query the pan and tilt resolution per position moved
    *   and initialize local atributes
    */

    virtual bool resolution(void) = 0;

    /*************************** Methods for internal use ****************/

   private:
    /** To transmition commands to the PTU */

    virtual bool transmit(const char* command) = 0;

    /** To receive the responseof the PTU */

    virtual bool receive(const char* command, char* response) = 0;

    /** Used to obtains a number of radians */

    virtual bool radQuerry(char axis, char command, double& nRad) = 0;

    /** Method used for asign a number of radians with a command */

    virtual bool radAsign(char axis, char command, double nRad) = 0;

};  // End of class

}
#endif