Index: /trunk/psModules/src/pslib/psEllipse.h
===================================================================
--- /trunk/psModules/src/pslib/psEllipse.h	(revision 7002)
+++ /trunk/psModules/src/pslib/psEllipse.h	(revision 7003)
@@ -1,2 +1,12 @@
+
+/** @file  psEllipse.h
+ *
+ * functions to manipulate sparse matrices equations
+ *  
+ */
+
+# ifndef PS_ELLIPSE_H
+# define PS_ELLIPSE_H
+
 // strucures to define elliptical shape parameters
 typedef struct
@@ -29,2 +39,3 @@
 psEllipseAxes psEllipseShapeToAxes (psEllipseShape shape);
 
+# endif