def __init__(self, src_func, start_time=-1.0e20, end_time=1.0e20):
super(CustomSource, self).__init__()
self.src_func = src_func
self.start_time = start_time
self.end_time = end_time
self.swigobj = mp.custom_src_time(src_func, start_time, end_time)
self.swigobj.is_integrated = self.is_integrated
def __init__(self, src_func, start_time=-1.0e20, end_time=1.0e20, center_frequency=0, **kwargs):
"""
Construct a `CustomSource`.
+ **`src_func` [`function`]** — The function $f(t)$ specifying the time-dependence
of the source. It should take one argument (the time in Meep units) and return a
complex number.
+ **`start_time` [`number`]** — The starting time for the source. Default is
-10<sup>20</sup>: turn on at $t=-\\infty$. Note, however, that the simulation
normally starts at $t=0$ with zero fields as the initial condition, so there is
implicitly a sharp turn-on at $t=0$ whether you specify it or not.
+ **`end_time` [`number`]** — The end time for the source. Default is
10<sup>20</sup> (never turn off).
+ **`is_integrated` [`boolean`]** — If `True`, the source is the integral of the
current (the [dipole
moment](https://en.wikipedia.org/wiki/Electric_dipole_moment)) which is
guaranteed to be zero after the current turns off. In practice, there is little
difference between integrated and non-integrated sources *except* for
[planewaves extending into
PML](Perfectly_Matched_Layer.md#planewave-sources-extending-into-pml). Default
is `False`.
+ **`center_frequency` [`number`]** — Optional center frequency so that the
`CustomSource` can be used within an `EigenModeSource`. Defaults to 0.
"""
super(CustomSource, self).__init__(**kwargs)
self.src_func = src_func
self.start_time = start_time
self.end_time = end_time
self.center_frequency = center_frequency
self.swigobj = mp.custom_src_time(src_func, start_time, end_time, center_frequency)
self.swigobj.is_integrated = self.is_integrated
def __init__(self, src_func, start_time=-1.0e20, end_time=1.0e20, **kwargs):
super(CustomSource, self).__init__(**kwargs)
self.src_func = src_func
self.start_time = start_time
self.end_time = end_time
self.swigobj = mp.custom_src_time(src_func, start_time, end_time)
self.swigobj.is_integrated = self.is_integrated
def __init__(self, src_func, start_time=-1.0e20, end_time=1.0e20, center_frequency=0, **kwargs):
super(CustomSource, self).__init__(**kwargs)
self.src_func = src_func
self.start_time = start_time
self.end_time = end_time
self.center_frequency = center_frequency
self.swigobj = mp.custom_src_time(src_func, start_time, end_time, center_frequency)
self.swigobj.is_integrated = self.is_integrated
def __init__(self,
src_func,
start_time=float('-inf'),
end_time=float('inf')):
super(CustomSource, self).__init__()
self.src_func = src_func
self.start_time = start_time
self.end_time = end_time
self.swigobj = mp.custom_src_time(src_func, start_time, end_time)
self.swigobj.is_integrated = self.is_integrated
