Index: trunk/archive/pslib/include/psPhotom.h
===================================================================
--- trunk/archive/pslib/include/psPhotom.h	(revision 274)
+++ trunk/archive/pslib/include/psPhotom.h	(revision 283)
@@ -15,19 +15,19 @@
 /** photometry system definition */
 typedef struct {
-    int ID;
-    char *name;
-    char *camera;
-    char *filter;
-    char *detector;
+    int ID;				//!< ID number for this photometric system
+    char *name;				//!< Name of photometric system
+    char *camera;			//!< Camera for photometric system
+    char *filter;			//!< Filter used for photometric system
+    char *detector;			//!< Detector used for photometric system
 } psPhotSystem;
 
 /** photometry transformations */
 typedef struct {
-    psPhotSystem src;
-    psPhotSystem dst;
-    psPhotSystem pP, pM;	///< Colour reference
-    psPhotSystem sP, sM;	///< Colour reference
-    float pA, sA;		///< 
-    psPolynomial3D transform;
+    psPhotSystem src;			//!< Source photometric system
+    psPhotSystem dst;			//!< Destination photometric system
+    psPhotSystem pP, pM;		///< Primary colour reference
+    psPhotSystem sP, sM;		///< Secondary colour reference
+    float pA, sA;			///< Colour offset for primary and secondary references
+    psPolynomial3D transform;		//!< Transformation from source to destination
 } psPhotTransform;