2 files changed, 13 insertions, 12 deletions
diff --git a/Wrappers/Python/ccpi/astra/operators/AstraProjector3DSimple.py b/Wrappers/Python/ccpi/astra/operators/AstraProjector3DSimple.py
index 606bce6..8058cdc 100644
--- a/Wrappers/Python/ccpi/astra/operators/AstraProjector3DSimple.py
+++ b/Wrappers/Python/ccpi/astra/operators/AstraProjector3DSimple.py
@@ -41,19 +41,21 @@ class AstraProjector3DSimple(LinearOperator):
         # Initialise empty for singular value.
         self.s1 = None
     
-    def direct(self, IM):
+    def direct(self, IM, out=None):
         self.fp.set_input(IM)
-        out = self.fp.get_output()
-        return out
+        
+        if out is None:
+            return self.fp.get_output()
+        else:
+            out.fill(self.fp.get_output())
     
-    def adjoint(self, DATA):
+    def adjoint(self, DATA, out=None):
         self.bp.set_input(DATA)
-        out = self.bp.get_output()
-        return out
-    
-    def get_max_sing_val(self):
-        self.s1, sall, svec = PowerMethodNonsquare(self,10)
-        return self.s1
+        
+        if out is None:
+            return self.bp.get_output()
+        else:
+            out.fill(self.bp.get_output())    
     
     def domain_geometry(self):
         return self.volume_geometry
diff --git a/Wrappers/Python/ccpi/astra/operators/AstraProjectorMC.py b/Wrappers/Python/ccpi/astra/operators/AstraProjectorMC.py
index a6993ba..f796a63 100644
--- a/Wrappers/Python/ccpi/astra/operators/AstraProjectorMC.py
+++ b/Wrappers/Python/ccpi/astra/operators/AstraProjectorMC.py
@@ -69,5 +69,4 @@ class AstraProjectorMC(LinearOperator):
     def norm(self):
         x0 = self.volume_geometry.allocate('random')
         self.s1, sall, svec = PowerMethodNonsquare(self, 50, x0)
-        return self.s1
-    
-\ No newline at end of file
+        return self.s1
+\ No newline at end of file