use groupItem for tracked object

ModuleFixTarget.py

@@ -289,7 +289,7 @@ class WndFixTarget(QWidget):
     #  with open(filename, 'rb') as f:
     #    data=pickle.load(f)
 
-    self._data=data
+    #self._data=data
     self._tree.setData(data)
     try:
       wnd=app._mainWnd
@@ -297,9 +297,12 @@ class WndFixTarget(QWidget):
       _log.info('_mainWnd not handeled')
       pass
     else:
+      grp=wnd._goTracked
       for go in data:
-        wnd.vb.addItem(go)
-      wnd._goTracked['objLst']=self._data
+        grp.addItem(go)
+      data=grp.childItems()
+      self._tree.setData(data)
+      #wnd._goTracked['objLst']=self._data
     return
 
 
@@ -356,6 +359,7 @@ class WndFixTarget(QWidget):
       self.dataFileLoaded.emit(filename)
 
   def save_file(self, filename=None):
+    app = QApplication.instance()
     # filename = folders.get_file("prelocated-save.dat")
     #data_folder = settings.value("folders/last_prelocation_folder")
     data_folder=''
@@ -373,9 +377,18 @@ class WndFixTarget(QWidget):
     #df.to_csv(filename, float_format="%.6f")
     #import numpy as np
     ext=filename.rsplit('.',1)[1].lower()
+    try:
+      wnd=app._mainWnd
+    except AttributeError:
+      _log.info('_mainWnd not handeled')
+      data=self._data
+    else:
+      grp=wnd._goTracked
+      data=grp.childItems()
+
     if ext=='json':
       with open(filename, 'w') as f:
-        json.dump(self._data, f,cls=MyJsonEncoder, indent=2)#separators=(',', ':')
+        json.dump(data, f,cls=MyJsonEncoder, indent=2)#separators=(',', ':')
     else:
       raise(IOError('unsupported file type'))
     #elif  ext=='yaml':