RotationIndexer: Remove SetLattice() - not sure why it was necessary in the first place

image_analysis/RotationIndexer.cpp

@@ -35,11 +35,6 @@ RotationIndexer::RotationIndexer(const DiffractionExperiment &x, IndexerThreadPo
     }
 }
 
-void RotationIndexer::SetLattice(const CrystalLattice &lattice) {
-    std::unique_lock ul(m);
-    indexed_lattice = lattice;
-}
-
 void RotationIndexer::TryIndex() {
     indexing_tried = true;
 
@@ -130,7 +125,13 @@ std::optional<RotationIndexerResult> RotationIndexer::ProcessImage(int64_t image
         if (accumulated_images >= min_images_for_indexing && image >= first_image_to_try_indexing)
             TryIndex();
     }
-
+    if (!indexed_lattice)
+        return {};
+    return RotationIndexerResult{
+        .lattice = indexed_lattice.value(),
+        .search_result = search_result_,
+        .geom = updated_geom_
+    };
     return GetLattice();
 }