Files
PINA/pina/data/data_dataset.py
2025-03-19 17:46:33 +01:00

41 lines
1.4 KiB
Python

from torch.utils.data import Dataset
import torch
from ..label_tensor import LabelTensor
class DataPointDataset(Dataset):
def __init__(self, problem, device) -> None:
super().__init__()
input_list = []
output_list = []
self.condition_names = []
for name, condition in problem.conditions.items():
if hasattr(condition, "output_points"):
input_list.append(problem.conditions[name].input_points)
output_list.append(problem.conditions[name].output_points)
self.condition_names.append(name)
self.input_pts = LabelTensor.stack(input_list)
self.output_pts = LabelTensor.stack(output_list)
if self.input_pts != []:
self.condition_indeces = torch.cat(
[
torch.tensor([i] * len(input_list[i]))
for i in range(len(self.condition_names))
],
dim=0,
)
else: # if there are no data points
self.condition_indeces = torch.tensor([])
self.input_pts = torch.tensor([])
self.output_pts = torch.tensor([])
self.input_pts = self.input_pts.to(device)
self.output_pts = self.output_pts.to(device)
self.condition_indeces = self.condition_indeces.to(device)
def __len__(self):
return self.input_pts.shape[0]