add document\ation to stl.py.

1 files changed, 3 insertions, 0 deletions

diff --git a/stl.py b/stl.py
index 9a63306..9bc14de 100644
--- a/stl.py
+++ b/stl.py
@@ -5,6 +5,7 @@ from geometry import Mesh
 import bz2
 
 def mesh_from_stl(filename):
+    "Return a mesh from an stl file."
     if filename.endswith('.bz2'):
         f = bz2.BZ2File(filename)
     else:
@@ -19,6 +20,7 @@ def mesh_from_stl(filename):
     return mesh_from_ascii_stl(filename)
 
 def mesh_from_ascii_stl(filename):
+    "Return a mesh from an ascii stl file."
     if filename.endswith('.bz2'):
         f = bz2.BZ2File(filename)
     else:
@@ -57,6 +59,7 @@ def mesh_from_ascii_stl(filename):
     return Mesh(np.array(vertices), np.array(triangles, dtype=np.uint32))
 
 def mesh_from_binary_stl(filename):
+    "Return a mesh from a binary stl file."
     f = open(filename)
 
     vertices = []