Exemplo n.º 1
0
    def _exec_traj(self):

        t = self.robot_parent.gettime()
        trajectory = self._active_trajectory

        try:
            if time_isafter(trajectory["starttime"], t):
                return

            if time_isafter(
                    t, trajectory["starttime"] +
                    trajectory["points"][-1]["time_from_start"]):
                #trajectory execution is over!
                self._active_trajectory = None
                # TODO: check here the final pose match the last point pose
                self.completed(status.SUCCESS, None)

            for p in trajectory["points"]:
                end = trajectory["starttime"] + p["time_from_start"]
                if "started" in p and time_isafter(end, t):
                    # currently going to this waypoint: fine!
                    break

                elif "started" not in p and time_isafter(end, t):
                    # start the new waypoint
                    allocated_time = end - t
                    assert (allocated_time > 0)

                    target = OrderedDict(
                        zip(self.local_data.keys(), p["positions"]))

                    for joint in target.keys():
                        # compute the distance based on actual current joint pose
                        dist = target[joint] - self._get_joint_value(joint)
                        self.joint_speed[joint] = dist / allocated_time

                    self.local_data = target

                    p["started"] = True
                    break

                elif "started" not in p and time_isafter(t, end):
                    logger.warning(
                        "Skipped a waypoint on armature <%s>. Wrong 'time_from_start'?"
                        % self.name())

                # case: "started" and t > end: do nothing, go to next point
        except KeyError as ke:
            self._active_trajectory = None
            self.completed(
                status.FAILED,
                "Error: invalid trajectory: key %s was expected." % ke)
Exemplo n.º 2
0
    def periodic_call(self):
        """
        Return true if the component must be called on this loop call, False otherwise
        """
        # must be called on each loop occurence
        if not hasattr(self, '_component_period'):
            return True

        # First call
        if  not self._last_call:
            self._last_call = self.__time.time
            self._nb_call = 1
            return True
        else:
            """
            We deal with a complete simulated second to deal with
            frequencies that are not a fraction of the main simulator frequency.
            For that purpose, we integrate until self._nb_call ==
            self._frequency, i.e.  self._nb_call * self._component_period == 1.0
            """
            must_call = time_isafter(self.__time.time, self._last_call + self._nb_call * self._component_period)
            if must_call:
                if (self._nb_call == self._frequency):
                    self._nb_call = 1
                    self._last_call = copy(self.__time.time)
                else:
                    self._nb_call += 1
            return must_call
Exemplo n.º 3
0
    def _exec_traj(self):

        t = self.robot_parent.gettime() / 1000.0
        trajectory = self._active_trajectory

        try:
            if time_isafter(trajectory["starttime"], t):
                return
            
            if time_isafter(t, trajectory["starttime"] + trajectory["points"][-1]["time_from_start"]):
                #trajectory execution is over!
                self._active_trajectory = None
                # TODO: check here the final pose match the last point pose
                self.completed(status.SUCCESS, None)

            for p in trajectory["points"]:
                end = trajectory["starttime"] + p["time_from_start"]
                if "started" in p and time_isafter(end, t):
                    # currently going to this waypoint: fine!
                    break

                elif "started" not in p and time_isafter(end, t):
                    # start the new waypoint
                    allocated_time = end - t
                    assert(allocated_time > 0)

                    target = OrderedDict(zip(self.local_data.keys(),
                                    p["positions"]))

                    for joint in target.keys():
                        # compute the distance based on actual current joint pose
                        dist = target[joint] - self._get_joint_value(joint)
                        self.joint_speed[joint] = dist/allocated_time

                    self.local_data = target

                    p["started"] = True
                    break

                elif "started" not in p and time_isafter(t, end):
                    logger.warning("Skipped a waypoint on armature <%s>. Wrong 'time_from_start'?" % self.name())

                # case: "started" and t > end: do nothing, go to next point
        except KeyError as ke:
            self._active_trajectory = None
            self.completed(status.FAILED, "Error: invalid trajectory: key %s was expected." % ke)
Exemplo n.º 4
0
 def action(self):
     if self._alarm_time and time_isafter(self.time.time, self._alarm_time):
         logger.debug('alarm fired at %f difference %f' % (self.time.time, self._alarm_time - self.time.time))
         self._alarm_time = None
         self.completed(status.SUCCESS)
Exemplo n.º 5
0
 def action(self):
     if self._alarm_time and time_isafter(self.time.time, self._alarm_time):
         logger.debug('alarm fired at %f difference %f' %
                      (self.time.time, self._alarm_time - self.time.time))
         self._alarm_time = None
         self.completed(status.SUCCESS)