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initialization from x,y,z arrays

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Michael Krayer 2021-08-19 17:26:38 +02:00
parent 3d6ecf2bda
commit 420d4a2e9f
1 changed files with 9 additions and 0 deletions
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9
particle.py
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@ -49,6 +49,15 @@ class Particles:
attr[key] = pp[col[key],:,0].squeeze() attr[key] = pp[col[key],:,0].squeeze()
return cls(num,time,attr,period) return cls(num,time,attr,period)
@classmethod
def from_position(cls,x,y,z,time,period):
assert x.ndim==1 and y.ndim==1 and z.ndim==1,\
"'x','y','z' must be one dimensional arrays of length Np."
assert len(x)==len(y) and len(y)==len(z)
num = len(x)
attr = {'id': np.arange(1,num+1),'x': np.asarray(x),'y': np.asarray(y),'z': np.asarray(z)}
return cls(num,time,attr,period)
def __getitem__(self,val): def __getitem__(self,val):
if isinstance(val,int): if isinstance(val,int):
lo,hi = val,val+1 lo,hi = val,val+1