Merge branch 'SecondHandsDemo2020' of gitlab.com:ArmarX/RobotAPI into SecondHandsDemo2020

source/RobotAPI/components/ArViz/Client/Layer.h

@@ -31,6 +31,15 @@ namespace armarx::viz
             data_.elements.push_back(element.data_);
         }
 
+        template <typename ElementT>
+        void add(std::vector<ElementT> const& elements)
+        {
+            for (const auto& e : elements)
+            {
+                add(e);
+            }
+        }
+
         template<class...Ts>
         std::enable_if_t < sizeof...(Ts) != 1 > add(Ts&& ...elems)
         {