Correct logic for 180-degree projection handling in _post_filter method

Author: ashmeigh

docs/release_notes/next/fix-2222-Monitor-normalisation-RuntimeError-No-logfile-stack

@@ -0,0 +1 @@
+2222: Monitor normalisation: RuntimeError: No logfile available for this stack.

mantidimaging/core/operations/base_filter.py

@@ -28,6 +28,7 @@ class BaseFilter:
     link_histograms = False
     show_negative_overlay = True
     operate_on_sinograms = False
+    allow_for_180_projection = True
 
     SINOGRAM_FILTER_INFO = "This filter will work on a\nsinogram view of the data."
 

mantidimaging/core/operations/monitor_normalisation/monitor_normalisation.py

@@ -31,6 +31,7 @@ class MonitorNormalisation(BaseFilter):
     """
     filter_name = "Monitor Normalisation"
     link_histograms = True
+    allow_for_180_projection = False
 
     @staticmethod
     def filter_func(images: ImageStack, progress=None) -> ImageStack:

mantidimaging/gui/windows/operations/presenter.py

@@ -275,12 +275,15 @@ def _post_filter(self, updated_stacks: list[ImageStack], task):
                     # otherwise check with user which one to keep
                     if self.view.safeApply.isChecked():
                         use_new_data = self._wait_for_stack_choice(stack, stack.id)
-                    # if the stack that was kept happened to have a proj180 stack - then apply the filter to that too
-                    if stack.has_proj180deg() and use_new_data and not self.applying_to_all:
-                        # Apply to proj180 synchronously - this function is already running async
-                        # and running another async instance causes a race condition in the parallel module
-                        # where the shared data can be removed in the middle of the operation of another operation
-                        self._do_apply_filter_sync([stack.proj180deg])
+                        # if the stack that was kept happened to have a proj180 stack - apply the filter to that too
+                        if self.model.selected_filter.allow_for_180_projection:
+                            # Apply to proj180 synchronously if necessary
+                            if use_new_data and not self.applying_to_all and stack.has_proj180deg():
+                                # Apply to proj180 synchronously - this function is already running async
+                                # and running another async instance causes a race condition in the parallel module
+                                # where the shared data can be removed in middle of the operation of another operation
+                                self._do_apply_filter_sync([stack.proj180deg])
+
                 if np.any(stack.data < 0):
                     negative_stacks.append(stack)