triangleDriveToActionExample.cpp

Example/demonstration of ArActionTriangleDriveTo, which drives the robot towards a specially shaped triangular target

Press g or G to use ArActionTriangleDriveTo to detect and drive towards a triangular target shape. Press s or S to stop. See ArActionTriangleDriveTo for more information about the triangular target and what the action does and its parameters.

#include "Aria.h"


int main(int argc, char **argv)
{
  Aria::init();

  // parse our args and make sure they were all accounted for
  ArSimpleConnector connector(&argc, argv);

  ArRobot robot;

  // the laser. ArActionTriangleDriveTo will use this laser object since it is
  // named "laser" when added to the ArRobot.
  ArSick sick;

  if (!connector.parseArgs() || argc > 1)
  {
    connector.logOptions();
    exit(1);
  }
  
  // a key handler so we can do our key handling
  ArKeyHandler keyHandler;
  // let the global aria stuff know about it
  Aria::setKeyHandler(&keyHandler);
  // toss it on the robot
  robot.attachKeyHandler(&keyHandler);

  // add the laser to the robot
  robot.addRangeDevice(&sick);

  ArSonarDevice sonar;
  robot.addRangeDevice(&sonar);
  
  ArActionTriangleDriveTo triangleDriveTo;
  ArFunctorC<ArActionTriangleDriveTo> lineGoCB(&triangleDriveTo, 
                      &ArActionTriangleDriveTo::activate);
  keyHandler.addKeyHandler('g', &lineGoCB);
  keyHandler.addKeyHandler('G', &lineGoCB);
  ArFunctorC<ArActionTriangleDriveTo> lineStopCB(&triangleDriveTo, 
                    &ArActionTriangleDriveTo::deactivate);
  keyHandler.addKeyHandler('s', &lineStopCB);
  keyHandler.addKeyHandler('S', &lineStopCB);

  ArActionLimiterForwards limiter("limiter", 150, 0, 0, 1.3);
  robot.addAction(&limiter, 70);
  ArActionLimiterBackwards limiterBackwards;
  robot.addAction(&limiterBackwards, 69);

  robot.addAction(&triangleDriveTo, 60);

  ArActionKeydrive keydrive;
  robot.addAction(&keydrive, 55);


  ArActionStop stopAction;
  robot.addAction(&stopAction, 50);
  
  // try to connect, if we fail exit
  if (!connector.connectRobot(&robot))
  {
    printf("Could not connect to robot... exiting\n");
    Aria::shutdown();
    return 1;
  }

  robot.comInt(ArCommands::SONAR, 1);
  robot.comInt(ArCommands::ENABLE, 1);
  
  // start the robot running, true so that if we lose connection the run stops
  robot.runAsync(true);

  // now set up the laser
  connector.setupLaser(&sick);

  sick.runAsync();

  if (!sick.blockingConnect())
  {
    printf("Could not connect to SICK laser... exiting\n");
    Aria::shutdown();
    return 1;
  }

  printf("If you press the 'g' key it'll go find a triangle, if you press 's' it'll stop.\n");

  robot.waitForRunExit();
  return 0;
}

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