import numpy as np
__all__ = ["points_normals_from" ,"ply_from_array"]
def points_normals_from(filename):
array = np.genfromtxt(filename)
return array[:,0:3], array[:,3:6]
def ply_from_array(points, faces, output_file):
num_points = len(points)
num_triangles = len(faces)
header = '''ply
format ascii 1.0
element vertex {0}
property float x
property float y
property float z
element face {1}
property list uchar int vertex_indices
end_header\n'''.format(num_points, num_triangles)
with open(output_file,'wb') as f:
f.writelines(header)
for item in points:
f.write("{0:0.6f} {1:0.6f} {2:0.6f}\n".format(item[0],item[1], item[2]))
for item in faces:
number = len(item)
row = "{0}".format(number)
for elem in item:
row += " {0} ".format(elem)
row += "\n"
f.write(row)
