def parseFile(self):
vertices = []
normals = []
if 'v' in self.sorted_Objectlines:
vertices = [
list(map(float, vertex_line_split))
for vertex_line_split in self.sorted_Objectlines['v']
]
if 'vn' in self.sorted_Objectlines:
normals = [
list(map(float, vertex_normal_line_split))
for vertex_normal_line_split in self.sorted_Objectlines['vn']
]
bounding_box = BoundingBox(vertices)
bounding_box.moveToCenter()
bounding_box.scaleToBoundingBox()
bounding_box.move_up()
vertices = bounding_box.points
if 'f' in self.sorted_Objectlines:
for face_line_split in self.sorted_Objectlines['f']:
points_indices = []
normals_indices = []
for value in face_line_split:
# case v//vn
if "//" in value:
data = value.split('//')
if len(data) > 0 and len(data[0]) > 0:
points_indices.append(int(data[0]) -
1) # corrected vertex index
if len(data) > 1 and len(data[1]) > 0:
normals_indices.append(int(data[1]) -
1) # corrected normal index
# case v/vt/vn undefined (we don't need textures yet)
# elif '/' in value:
# print("case v/vt/vn")
# case v
elif len(value) > 0:
points_indices.append(int(value) -
1) # corrected vertex index
face = []
points = []
norms = []
points.append(vertices[points_indices[0]])
points.append(vertices[points_indices[1]])
points.append(vertices[points_indices[2]])
if len(normals_indices) == 0:
vector1 = np.array(points[2]) - np.array(points[0])
vector2 = np.array(points[2]) - np.array(points[1])
norm = np.cross(vector1, vector2)
norms.append(norm)
norms.append(norm)
norms.append(norm)
else:
norms.append(normals[normals_indices[0]])
norms.append(normals[normals_indices[1]])
norms.append(normals[normals_indices[2]])
#face = edge of a Triangle
face.append(points)
face.append(norms)
#faces and normals = Triangle
self._faces_and_normals.append(face)
