File size: 1,092 Bytes
5db43ff |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 |
import os
import numpy as np
from scipy.spatial.transform import Rotation as R
def load_obj(filename):
vertices = []
faces = []
with open(filename, 'r') as fp:
for line in fp:
line_split = line.split()
if not line_split:
continue
elif line_split[0] == 'v':
vertices.append([line_split[1], line_split[2], line_split[3]])
elif line_split[0] == 'f':
vertex_indices = [s.split("/")[0] for s in line_split[1:]]
faces.append(vertex_indices)
vertices = np.array(vertices, dtype=np.float32)
faces = np.array(faces, dtype=np.int32) - 1
return vertices, faces
def save_obj(filename, vertices, faces):
os.makedirs(os.path.dirname(filename), exist_ok=True)
with open(filename, 'w') as fp:
for v in vertices:
fp.write('v %f %f %f\n' % (v[0], v[1], v[2]))
for f in (faces + 1): # Faces are 1-based, not 0-based in obj files
fp.write('f %d %d %d\n' % (f[0], f[1], f[2]))
print("Saved:", filename)
|