From 3a5f4f4d517e854fb9b4e0f723c9f6de91f812b5 Mon Sep 17 00:00:00 2001
From: "Eugeniy E. Mikhailov" <evgmik@gmail.com>
Date: Sat, 18 Dec 2021 22:15:38 -0500
Subject: united trace initialization

---
 qolab/data/trace.py | 25 +++++++++++++------------
 1 file changed, 13 insertions(+), 12 deletions(-)

diff --git a/qolab/data/trace.py b/qolab/data/trace.py
index 4c42cd0..d187575 100644
--- a/qolab/data/trace.py
+++ b/qolab/data/trace.py
@@ -14,12 +14,17 @@ class Trace:
     def __init__(self, label):
         self.config = {}
         self.config['label'] = label
-        self.config['unit'] = None
         self.config['tags'] = {}
         self.item_format='.15e'
-        self.values = np.empty(0)
+        self.last_saved_pos = 0
+        self._trace_specific_init()
         self.clear_data()
 
+    def _trace_specific_init(self):
+        self.config['unit'] = None
+        self.values = np.empty(0)
+        self.last_saved_pos = 0
+
     def clear_last_saved_pos(self):
         self.last_saved_pos = 0
 
@@ -61,13 +66,11 @@ class Trace:
 
 class TraceXY(Trace):
     def __init__(self, label):
-        self.config = {}
-        self.config['label'] = label
-        self.item_format='.15e'
-        self.config['tags'] = {}
+        super().__init__(label)
+
+    def _trace_specific_init(self):
         self.x = None
         self.y = None
-        self.clear_data()
 
     def clear_data(self):
         self.clear_last_saved_pos()
@@ -109,13 +112,11 @@ class TraceXY(Trace):
         
 class TraceSetSameX(Trace):
     def __init__(self, label):
-        self.config = {}
-        self.config['label'] = label
-        self.item_format='.15e'
-        self.config['tags'] = {}
+        super().__init__(label)
+
+    def _trace_specific_init(self):
         self.x = None
         self.traces={}
-        self.clear_data()
 
     def clear_data(self):
         self.clear_last_saved_pos()
-- 
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