Fix tolerance because particles are still lost

diff --git a/source/particles/particle_handler.cc b/source/particles/particle_handler.cc
index 1d7a9b703d77c79b1ae6873f517a9b9e534baa68..d6120e06260853679145a9f0e2b1dee37097cf6d 100644 (file)
--- a/source/particles/particle_handler.cc
+++ b/source/particles/particle_handler.cc
@@ -1376,7 +1376,7 @@ namespace Particles
                                                           reference_locations);
 
               if (GeometryInfo<dim>::is_inside_unit_cell(
-                    reference_locations[0]))
+                    reference_locations[0]),1e-12)
                 {
                   current_cell = *cell;
                   found_cell   = true;