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import torch
import numpy as np
from .. import TrussSolvers
def Truss10D(individuals):
assert torch.is_tensor(individuals) and individuals.size(1) == 10, "Input must be an n-by-10 PyTorch tensor."
n = individuals.size(0)
fx = torch.zeros(n,1)
# 10 bar stress constraints, 4 displacement constraints
gx = torch.zeros(n,14)
for ii in range(n):
displace, stress, _, _, weights = Truss10bar(A)
fx[ii,0] = weights
for ss in range(10):
gx[ii,ss] = abs(stress[ss])
gx[ii,10] = displace[1][1]
gx[ii,11] = displace[2][1]
gx[ii,12] = displace[4][1]
gx[ii,13] = displace[5][1]
return gx, fx
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