[docs] added docstrings to exports

1 files changed, 12 insertions, 6 deletions

diff --git a/src/protocol.lisp b/src/protocol.lisp
index df3c170..002aad6 100644
--- a/src/protocol.lisp
+++ b/src/protocol.lisp
@@ -46,17 +46,23 @@
 (defgeneric (setf height) (new-height thing)
   (:documentation "sets the effective height of thing to new-height"))
 
-(defgeneric rotation (thing))
+(defgeneric rotation (thing)
+  (:documentation "Rotational angle of thing in radians about its center."))
 (defgeneric (setf rotation) (newval thing))
-(defgeneric x (thing))
+(defgeneric x (thing)
+  (:documentation "X position of the bottom left corner in scaled coordinates"))
 (defgeneric (setf x) (newval thing))
-(defgeneric y (thing))
+(defgeneric y (thing)
+  (:documentation "Y position of bottom left corner in scaled coordinates"))
 (defgeneric (setf y) (newval thing))
-(defgeneric scale-x (thing))
+(defgeneric scale-x (thing)
+  (:documentation "Horizontal scale factor"))
 (defgeneric (setf scale-x) (newvval thing))
-(defgeneric scale-y (thing))
+(defgeneric scale-y (thing)
+  (:documentation "Vertical Scale Vactor"))
 (defgeneric (setf scale-y) (newval thing))
+
 (defgeneric get-rect (affine)
   (:documentation "Returns a list of vectors representing the path of
    the smallest rectangle that encloses the affine-unit. The rectangle
-   is scaled and rotated."))
+   is scaled and rotated.  These vectors have been made using 3D-VECTORS:VEC"))