def parse_obj_file(filename):
vertices = []
faces = []
try:
with open(filename, 'r') as file:
for line in file:
if line.startswith('v '):
# Line contains vertex data
parts = line.strip().split()
x = float(parts[1])
y = float(parts[2])
z = float(parts[3])
# Swap Z and Y
vertices.append((x, z, y))
elif line.startswith('f '):
# Line contains face data
parts = line.strip().split()
face = [int(p.split('/')[0]) - 1 for p in parts[1:]]
faces.append(face)
except FileNotFoundError:
print(f"Error: File '{filename}' not found.")
return None, None
except Exception as e:
print(f"Error: {e}")
return None, None
return vertices, faces
def format_faces(vertices, faces):
output = []
for face in faces:
formatted_vertices = ', '.join(
f"P({vertices[i][0]},{vertices[i][1]},{vertices[i][2]})"
for i in face
)
formatted_face = f"\\operatorname{{polygon}}\\left({formatted_vertices}\\right)"
output.append(formatted_face)
return "\n".join(output) # Join all faces with newline characters
def main():
input_filename = r"C:\Users\Marv\Desktop\hause.obj" # Use raw string literal to handle backslashes
vertices, faces = parse_obj_file(input_filename)
if vertices is None or faces is None:
return
formatted_faces = format_faces(vertices, faces)
print(formatted_faces) # Print all formatted faces at once, each on a new line
if __name__ == "__main__":
main()
