Api extra (#166)

Changes to be able to run the example notebooks: 

- Invert gain map on setting (multiplication is faster but user supplies
ADU/energy)
- Cast after applying gain map not to loose precision (Important for
int32 clusters)
- "factor" for ClusterFileSink 
- Cluster size available to be able to create the right file sink

python/src/bind_ClusterVector.hpp

@@ -44,11 +44,10 @@ void define_ClusterVector(py::module &m, const std::string &typestr) {
                  auto *vec = new std::vector<Type>(self.sum());
                  return return_vector(vec);
              })
-        .def("sum_2x2",
-             [](ClusterVector<ClusterType> &self) {
-                 auto *vec = new std::vector<Type>(self.sum_2x2());
-                 return return_vector(vec);
-             })
+        .def("sum_2x2", [](ClusterVector<ClusterType> &self){
+            auto *vec = new std::vector<Type>(self.sum_2x2());
+            return return_vector(vec);
+        })
         .def_property_readonly("size", &ClusterVector<ClusterType>::size)
         .def("item_size", &ClusterVector<ClusterType>::item_size)
         .def_property_readonly("fmt",

python/src/cluster.hpp

@@ -93,6 +93,9 @@ void define_cluster_finder_mt_bindings(py::module &m,
                 return;
             },
             py::arg(), py::arg("frame_number") = 0)
+        .def_property_readonly("cluster_size", [](ClusterFinderMT<ClusterType, uint16_t, pd_type> &self){
+            return py::make_tuple(ClusterSizeX, ClusterSizeY);
+        })
         .def("clear_pedestal",
              &ClusterFinderMT<ClusterType, uint16_t, pd_type>::clear_pedestal)
         .def("sync", &ClusterFinderMT<ClusterType, uint16_t, pd_type>::sync)

python/src/module.cpp

@@ -10,13 +10,12 @@
 #include "file.hpp"
 #include "fit.hpp"
 #include "interpolation.hpp"
-#include "pedestal.hpp"
-#include "pixel_map.hpp"
-#include "raw_file.hpp"
-#include "raw_master_file.hpp"
-#include "var_cluster.hpp"
 #include "raw_sub_file.hpp"
-
+#include "raw_master_file.hpp"
+#include "raw_file.hpp"
+#include "pixel_map.hpp"
+#include "var_cluster.hpp"
+#include "pedestal.hpp"
 #include "jungfrau_data_file.hpp"
 
 // Pybind stuff