LinacAccNode will have XML Data Adaptor and a reference to the parent sequence

py/orbit/py_linac/lattice/LinacAccNodes.py

@@ -41,9 +41,25 @@ def __init__(self, name="none"):
         self.setType("baseLinacNode")
         self.setParam("pos", 0.0)
         self.__linacSeqence = None
+        #-------------------------------------------------
+        # XML data adaptor of this node. 
+        #-------------------------------------------------
+        self.data_adaptor = None
         # by default we use the TEAPOT tracker module
         self.tracking_module = TPB
-
+
+    def setDataAdaptor(self,data_adaptor):
+        """
+        Sets the XML data adaptor of this node.
+        """
+        self.data_adaptor = data_adaptor
+
+    def getDataAdaptor(self):
+        """
+        Returns the XML data adaptor of this node.
+        """
+        return self.data_adaptor
+
     def setLinacTracker(self, switch=True):
         """
         This method will switch tracker module to the linac specific traker by default
@@ -64,6 +80,9 @@ def setSequence(self, seq):
         Sets the seqence.
         """
         self.__linacSeqence = seq
+        #---- set up Sequence for all children
+        for child_node in self.getAllChildren():
+            child_node.setSequence(seq)
 
     def setPosition(self, pos):
         """

py/orbit/py_linac/linac_parsers/sns_linac_lattice_factory.py

@@ -301,6 +301,9 @@ def positionComp(node_da):
                         accNode = MarkerLinacNode(node_da.stringValue("name"))
                     accNode.setParam("pos", node_pos)
                     thinNodes.append(accNode)
+                #--------------------------------------
+                #---- sets up copy of XML data adaptor of this node
+                accNode.setDataAdaptor(node_da.getDeepCopy())
             # ----- assign the thin nodes that are inside the thick nodes
             unusedThinNodes = []
             for thinNode in thinNodes: