Index: trunk/psModules/src/objects/pmResiduals.h
===================================================================
--- trunk/psModules/src/objects/pmResiduals.h	(revision 15562)
+++ trunk/psModules/src/objects/pmResiduals.h	(revision 21183)
@@ -4,6 +4,6 @@
  *
  * @author EAM, IfA
- * @version $Revision: 1.3 $ $Name: not supported by cvs2svn $
- * @date $Date: 2007-11-10 01:09:20 $
+ * @version $Revision: 1.4 $ $Name: not supported by cvs2svn $
+ * @date $Date: 2009-01-27 06:39:38 $
  * Copyright 2004 IfA, University of Hawaii
  */
@@ -31,4 +31,11 @@
 bool psMemCheckResiduals(psPtr ptr);
 
+// macros to abstract the resid mask type : these values must be consistent 
+#define PM_TYPE_RESID_MASK PS_TYPE_U8        /**< the psElemType to use for mask image */
+#define PM_TYPE_RESID_MASK_DATA U8           /**< the data member to use for mask image */
+#define PM_TYPE_RESID_MASK_NAME "psU8"       /**< the data type for mask as a string */
+typedef psU8 pmResidMaskType;               ///< the C datatype for a mask image
+#define PM_NOT_RESID_MASK(A)(UINT8_MAX-(A))
+
 /// @}
 # endif