Index: trunk/psModules/src/objects/pmPSFtry.c
===================================================================
--- trunk/psModules/src/objects/pmPSFtry.c	(revision 12949)
+++ trunk/psModules/src/objects/pmPSFtry.c	(revision 13034)
@@ -5,6 +5,6 @@
  *  @author EAM, IfA
  *
- *  @version $Revision: 1.35 $ $Name: not supported by cvs2svn $
- *  @date $Date: 2007-04-21 19:47:14 $
+ *  @version $Revision: 1.36 $ $Name: not supported by cvs2svn $
+ *  @date $Date: 2007-04-26 01:20:29 $
  *
  *  Copyright 2004 Maui High Performance Computing Center, University of Hawaii
@@ -99,6 +99,4 @@
 {
     bool status;
-    float x;
-    float y;
     int Next = 0;
     int Npsf = 0;
@@ -120,13 +118,10 @@
             return NULL;
         }
-        x = source->peak->x;
-        y = source->peak->y;
-
-        // set temporary object mask and fit object
+
+        // set object mask to define valid pixels
+        psImageKeepCircle (source->maskObj, source->peak->x, source->peak->y, RADIUS, "OR", PM_MASK_MARK);
+
         // fit model as EXT, not PSF
-
-        psImageKeepCircle (source->mask, x, y, RADIUS, "OR", PM_MASK_MARK);
         status = pmSourceFitModel (source, source->modelEXT, PM_SOURCE_FIT_EXT);
-        psImageKeepCircle (source->mask, x, y, RADIUS, "AND", PS_NOT_U8(PM_MASK_MARK));
 
         // exclude the poor fits
@@ -158,11 +153,10 @@
         source->modelPSF = pmModelFromPSF (source->modelEXT, psfTry->psf);
         source->modelPSF->radiusFit = RADIUS;
-        x = source->peak->x;
-        y = source->peak->y;
-
-        // set the mask and fit the PSF model
-        psImageKeepCircle (source->mask, x, y, RADIUS, "OR", PM_MASK_MARK);
+
+        // set object mask to define valid pixels
+        psImageKeepCircle (source->maskObj, source->peak->x, source->peak->y, RADIUS, "OR", PM_MASK_MARK);
+
+        // fit the PSF model to the source
         status = pmSourceFitModel (source, source->modelPSF, PM_SOURCE_FIT_PSF);
-        psImageKeepCircle (source->mask, x, y, RADIUS, "AND", PS_NOT_U8(PM_MASK_MARK));
 
         // skip poor fits