Partio NumPy demo

getArray.py

import partio
import numpy as np
p = partio.create()
size = 3
posattr = p.addAttribute("pos",partio.FLOAT,size)
for i in range(8):
	p.addParticle()
	
	data = tuple(i+j*100 for j in range(size))
	p.set(posattr, i, data)
 
print( [p.get(posattr, i) for i in range(p.numParticles())] )
 
print( p.getArray(posattr) )

setArray.py

import partio
import numpy as np

ar = np.arange(24)[::-1]
print(ar)

p = partio.create()
posattr = p.addAttribute("pos",partio.VECTOR,3)
it = p.addParticles(8)

print( [p.get(posattr, i) for i in range(p.numParticles())] )

p.setArray(posattr, ar)

print( [p.get(posattr, i) for i in range(p.numParticles())] )