main now turns content of realtime window analysis into nx dataset

the data is not parsed or analysed, it's written as text (well, tsv
technically) - this is only for testing and first attempts

src/main.py

@@ -1,4 +1,5 @@
 import os, json, requests, h5py
+import numpy as np
 from getpass import getpass
 from APIHandler import APIHandler
 from classes import *
@@ -301,7 +302,7 @@ def make_nexus_schema_dictionary(substrate_object, layers):
         }
     return pld_fabrication
 
-def build_nexus_file(pld_fabrication, output_path):
+def build_nexus_file(pld_fabrication, output_path, rheed_osc=None):
     # NOTE: look at the mail attachment from Emiliano...
     with h5py.File(output_path, "w") as f:
         nx_pld_entry = f.create_group("pld_fabrication")
@@ -439,6 +440,9 @@ def build_nexus_file(pld_fabrication, output_path):
             nx_instruments.create_dataset("rheed_system", data = instruments_dict["rheed_system"])
         except TypeError as te:
             raise TypeError(te)
+        nx_rheed = nx_pld_entry.create_group("rheed_data")
+        nx_rheed.attrs["NX_class"] = "NXdata"
+        nx_rheed.create_dataset("intensity", data=rheed_osc)
     return
 
 if __name__=="__main__":
@@ -455,4 +459,6 @@ if __name__=="__main__":
     # print(make_nexus_schema_dictionary(substrate_object, layers)) # debug
     with open (f"output/sample-{sample_name}.json", "w") as f:
         json.dump(result, f, indent=3)
-    build_nexus_file(result, output_path=f"output/sample-{sample_name}-nexus.h5")
+    with open(f"tests/Realtime_Window_Analysis.txt", "r") as o:
+        osc = np.loadtxt(o)
+    build_nexus_file(result, output_path=f"output/sample-{sample_name}-nexus.h5", rheed_osc=osc)