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naive implementation of Until

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This commit is contained in:
Marcell Vazquez-Chanlatte 2017-04-20 22:11:54 -07:00
parent 5eb3674d95
commit ba46bfbd05
3 changed files with 19 additions and 15 deletions
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22
stl/boolean_eval.py
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@ -26,28 +26,34 @@ def _(stl):
return lambda x, t: all(f(x, t) for f in fs)
def get_times(x, tau, lo=None, hi=None):
indices = x.index if lo is None or hi is None else x[lo:hi].index
return [min(tau + t2, x.index[-1]) for t2 in indices]
@pointwise_sat.register(stl.Until)
def _(stl):
def _until(x, t):
phi = (pointwise_sat(phi)(x, t) for t in x.index)
return lambda x, t: any((pointwise_sat(stl.arg)(x, min(t + t2, x.index[-1]))
for t2 in x[lo:hi].index))
f1, f2 = pointwise_sat(stl.arg1), pointwise_sat(stl.arg2)
for tau in get_times(x, t):
if not f1(x, tau):
return f2(x, tau)
return False
return _until
@pointwise_sat.register(stl.F)
def _(stl):
lo, hi = stl.interval
f = pointwise_sat(stl.arg)
return lambda x, t: any((f(x, min(t + t2, x.index[-1]))
for t2 in x[lo:hi].index))
return lambda x, t: any(f(x, tau) for tau in get_times(x, t, lo, hi))
@pointwise_sat.register(stl.G)
def _(stl):
lo, hi = stl.interval
f = pointwise_sat(stl.arg)
return lambda x, t: all((pointwise_sat(stl.arg)(x, min(t + t2, x.index[-1]))
for t2 in x[lo:hi].index))
f = pointwise_sat(stl.arg)
return lambda x, t: all(f(x, tau) for tau in get_times(x, t, lo, hi))
@pointwise_sat.register(stl.Neg)