Added a warning before split-merge to ensure GPS/GCP info is present.

opendm/types.py

@@ -93,6 +93,13 @@ class ODM_Reconstruction(object):
 
     def has_gcp(self):
         return self.is_georeferenced() and self.gcp is not None and self.gcp.exists()
+    
+    def has_geotagged_photos(self):
+        for photo in self.photos:
+            if photo.latitude is None and photo.longitude is None:
+                return False
+
+        return True 
 
     def georeference_with_gcp(self, gcp_file, output_coords_file, output_gcp_file, output_model_txt_geo, rerun=False):
         if not io.file_exists(output_coords_file) or not io.file_exists(output_gcp_file) or rerun:

stages/splitmerge.py

@@ -27,9 +27,17 @@ class ODMSplitStage(types.ODM_Stage):
         reconstruction = outputs['reconstruction']
         photos = reconstruction.photos
 
+        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
+
         outputs['large'] = len(photos) > args.split
 
-        if outputs['large']:
+        if outputs['large'] and gps_info_available:
             # If we have a cluster address, we'll use a distributed workflow
             local_workflow = not bool(args.sm_cluster)
 
@@ -172,6 +180,9 @@ class ODMSplitStage(types.ODM_Stage):
             else:
                 log.ODM_WARNING('Found a split done file in: %s' % split_done_file)
         else:
+            if not gps_info_available:
+                log.ODM_WARNING('Could not perform split-merge as GPS information in photos or image_groups.txt is missing.')
+
             log.ODM_INFO("Normal dataset, will process all at once.")
             self.progress = 0.0