Index: /trunk/Mars/mgeom/MGeomCamFACT.cc
===================================================================
--- /trunk/Mars/mgeom/MGeomCamFACT.cc	(revision 12623)
+++ /trunk/Mars/mgeom/MGeomCamFACT.cc	(revision 12624)
@@ -97,8 +97,8 @@
     const Double_t diameter = 9.5;
 
+    //
     //  add the first pixel to the list
     //
-    MGeomPix pix0(0, -0.5*diameter, diameter);
-    pix0.SetPhi(TMath::Pi()/2);
+    const MGeomPix pix0(-0.5*diameter, 0, diameter);
     SetAt(0, pix0);
 
@@ -115,6 +115,5 @@
                     continue;
 
-                MGeomPix pix(y*diameter, (x-0.5)*diameter, diameter);
-                pix.SetPhi(TMath::Pi()/2);
+                const MGeomPix pix((x-0.5)*diameter, -y*diameter, diameter);
                 SetAt(cnt++, pix);
 
@@ -122,8 +121,6 @@
                     continue;
 
-                MGeomPix pix1( y*diameter, -6.5*diameter, diameter);
-                MGeomPix pix2(-y*diameter, -6.5*diameter, diameter);
-                pix1.SetPhi(TMath::Pi()/2);
-                pix2.SetPhi(TMath::Pi()/2);
+                const MGeomPix pix1(-6.5*diameter, -y*diameter, diameter);
+                const MGeomPix pix2(-6.5*diameter,  y*diameter, diameter);
                 SetAt(1438, pix1);
                 SetAt(1439, pix2);