Example #1
0
    def __init__(self,
                 dmps,
                 bfs,
                 used=None,
                 default=None,
                 type='discrete',
                 run_time=2.,
                 timesteps=100):
        self.used = ones(dmps *
                         (bfs + 2), dtype=bool) if used is None else array(
                             used, dtype=bool)
        self.default = zeros(dmps *
                             (bfs + 2)) if default is None else array(default)
        self.motor = copy(self.default)
        self.n_dmps = dmps
        self.n_bfs = bfs
        self.timesteps = timesteps

        if type == 'discrete':
            self.dmp = DMPs_discrete(dmps=dmps,
                                     bfs=bfs,
                                     dt=run_time / timesteps,
                                     run_time=run_time)
        elif type == 'rythmic':
            self.dmp = DMPs_rhythmic(dmps=dmps, bfs=bfs)
        else:
            raise ValueError('Invalid type specified. Valid choices \
                                 are discrete or rhythmic.')
Example #2
0
 def __init__(self, dmps, bfs, used=None, default=None, type='discrete', run_time=2., timesteps=100):
     self.used = ones(dmps * (bfs + 2), dtype=bool) if used is None else array(used, dtype=bool)
     self.default = zeros(dmps*(bfs + 2)) if default is None else array(default)
     self.motor = copy(self.default)
     self.n_dmps = dmps
     self.n_bfs = bfs
     self.timesteps = timesteps
     
     if type == 'discrete':
         self.dmp = DMPs_discrete(dmps=dmps, bfs=bfs, dt=run_time/timesteps, run_time=run_time)
     elif type =='rythmic':
         self.dmp = DMPs_rhythmic(dmps=dmps, bfs=bfs)
     else:
         raise ValueError('Invalid type specified. Valid choices \
                              are discrete or rhythmic.')
Example #3
0
class DmpPrimitive(object):
    def __init__(self, dmps, bfs, used=None, default=None, type='discrete', run_time=2., timesteps=100):
        self.used = ones(dmps * (bfs + 2), dtype=bool) if used is None else array(used, dtype=bool)
        self.default = zeros(dmps*(bfs + 2)) if default is None else array(default)
        self.motor = copy(self.default)
        self.n_dmps = dmps
        self.n_bfs = bfs
        self.timesteps = timesteps
        
        if type == 'discrete':
            self.dmp = DMPs_discrete(dmps=dmps, bfs=bfs, dt=run_time/timesteps, run_time=run_time)
        elif type =='rythmic':
            self.dmp = DMPs_rhythmic(dmps=dmps, bfs=bfs)
        else:
            raise ValueError('Invalid type specified. Valid choices \
                                 are discrete or rhythmic.')

    def trajectory(self, m, n_times=1):
        self.dmp.cs.run_time *= n_times
        self.dmp.timesteps *= n_times
        self.motor[self.used] = m
        self.dmp.y0 = self.motor[:self.dmp.dmps]
        self.dmp.goal = self.motor[-self.dmp.dmps:]
        self.dmp.w = self.motor[self.dmp.dmps:-self.dmp.dmps].reshape(self.dmp.dmps, self.dmp.bfs)
        y, dy, ddy = self.dmp.rollout(timesteps=self.timesteps, tau=1.)
        self.dmp.cs.run_time /= n_times
        self.dmp.timesteps /= n_times
        return y
Example #4
0
class DmpPrimitive(object):
    def __init__(self,
                 dmps,
                 bfs,
                 used=None,
                 default=None,
                 type='discrete',
                 run_time=2.,
                 timesteps=100):
        self.used = ones(dmps *
                         (bfs + 2), dtype=bool) if used is None else array(
                             used, dtype=bool)
        self.default = zeros(dmps *
                             (bfs + 2)) if default is None else array(default)
        self.motor = copy(self.default)
        self.n_dmps = dmps
        self.n_bfs = bfs
        self.timesteps = timesteps

        if type == 'discrete':
            self.dmp = DMPs_discrete(dmps=dmps,
                                     bfs=bfs,
                                     dt=run_time / timesteps,
                                     run_time=run_time)
        elif type == 'rythmic':
            self.dmp = DMPs_rhythmic(dmps=dmps, bfs=bfs)
        else:
            raise ValueError('Invalid type specified. Valid choices \
                                 are discrete or rhythmic.')

    def trajectory(self, m, n_times=1):
        self.dmp.cs.run_time *= n_times
        self.dmp.timesteps *= n_times
        self.motor[self.used] = m
        self.dmp.y0 = self.motor[:self.dmp.dmps]
        self.dmp.goal = self.motor[-self.dmp.dmps:]
        self.dmp.w = self.motor[self.dmp.dmps:-self.dmp.dmps].reshape(
            self.dmp.dmps, self.dmp.bfs)
        y, dy, ddy = self.dmp.rollout(timesteps=self.timesteps, tau=1.)
        self.dmp.cs.run_time /= n_times
        self.dmp.timesteps /= n_times
        return y