More efficient logic

stages/splitmerge.py

@@ -26,20 +26,24 @@ class ODMSplitStage(types.ODM_Stage):
         tree = outputs['tree']
         reconstruction = outputs['reconstruction']
         photos = reconstruction.photos
-
+        outputs['large'] = False
-        gps_info_available = False
-        # check for availability of either image_groups.txt (split-merge) or geotagged photos
-        image_groups_file = os.path.join(args.project_path, "image_groups.txt")
-        if 'split_image_groups_is_set' in args:
-            image_groups_file = os.path.abspath(args.split_image_groups)
-        if io.file_exists(image_groups_file) or reconstruction.has_geotagged_photos():
-            gps_info_available = True
 
         should_split = len(photos) > args.split
-        if should_split and not gps_info_available:
-            log.ODM_WARNING('Could not perform split-merge as GPS information in photos or image_groups.txt is missing.')
 
-        outputs['large'] = should_split and gps_info_available
+        if should_split:
+            gps_info_available = False
+            
+            # check for availability of either image_groups.txt (split-merge) or geotagged photos
+            image_groups_file = os.path.join(args.project_path, "image_groups.txt")
+            if 'split_image_groups_is_set' in args:
+                image_groups_file = os.path.abspath(args.split_image_groups)
+            if io.file_exists(image_groups_file) or reconstruction.has_geotagged_photos():
+                gps_info_available = True
+
+            if gps_info_available:
+                outputs['large'] = True
+            else:
+                log.ODM_WARNING('Could not perform split-merge as GPS information in photos or image_groups.txt is missing.')
 
         if outputs['large']:
             # If we have a cluster address, we'll use a distributed workflow