I don't get paint a path msg [closed]

edit

I attemp paint a path msg in rviz, i have a odometry msg and I created a node to transform this in path msg, the msg that i get is the next:

---
header: 
  seq: 5
  stamp: 
    secs: 1431593506
    nsecs: 572904821
  frame_id: odom
poses: 
  - 
    header: 
      seq: 4
      stamp: 
        secs: 1431593506
        nsecs: 534717082
      frame_id: odom
    pose: 
      position: 
        x: 0.369169249199
        y: 0.27659386606
        z: 0.0
      orientation: 
        x: 0.0
        y: 0.0
        z: 0.0
        w: 1.0
  - 
    header: 
      seq: 4
      stamp: 
        secs: 1431593506
        nsecs: 534717082
      frame_id: odom
    pose: 
      position: 
        x: 0.369169249199
        y: 0.27659386606
        z: 0.0
      orientation: 
        x: 0.0
        y: 0.0
        z: 0.0
        w: 1.0
  - 
    header: 
      seq: 4
      stamp: 
        secs: 1431593506
        nsecs: 534717082
      frame_id: odom
    pose: 
      position: 
        x: 0.369169249199
        y: 0.27659386606
        z: 0.0
      orientation: 
        x: 0.0
        y: 0.0
        z: 0.0
        w: 1.0
  - 
    header: 
      seq: 4
      stamp: 
        secs: 1431593506
        nsecs: 534717082
      frame_id: odom
    pose: 
      position: 
        x: 0.369169249199
        y: 0.27659386606
        z: 0.0
      orientation: 
        x: 0.0
        y: 0.0
        z: 0.0
        w: 1.0
  - 
    header: 
      seq: 4
      stamp: 
        secs: 1431593506
        nsecs: 534717082
      frame_id: odom
    pose: 
      position: 
        x: 0.369169249199
        y: 0.27659386606
        z: 0.0
      orientation: 
        x: 0.0
        y: 0.0
        z: 0.0
        w: 1.0
---


 ![#!/usr/bin/env python
from __future__ import print_function
import rospy
from tf.transformations import quaternion_from_euler
from std_msgs.msg import String
from nav_msgs.msg import Odometry, Path
from geometry_msgs.msg import PoseWithCovarianceStamped, PoseStamped
from sensor_msgs.msg import Joy

import json
from math import sqrt
from collections import deque


def callback(data):
    global xAnt
    global yAnt

    #Is created the pose msg, its necessary do it each time because Python manages objects by reference, 
    #and does not make deep copies unless explicitly asked to do so.
    pose = PoseStamped()    

    #Set a atributes of the msg
    pose.header.frame_id = "odom"
    pose.pose.position.x = float(data.pose.pose.position.x)
    pose.pose.position.y = float(data.pose.pose.position.y)
    pose.pose.orientation.x = float(data.pose.pose.orientation.x)
    pose.pose.orientation.y = float(data.pose.pose.orientation.y)
    pose.pose.orientation.z = float(data.pose.pose.orientation.z)
    pose.pose.orientation.w = float(data.pose.pose.orientation.w)

    #To avoid repeating the values, it is found that the received values are differents
    if (xAnt != pose.pose.position.x and yAnt != pose.pose.position.y):
        #Set a atributes of the msg
        pose.header.seq = path.header.seq + 1
        path.header.frame_id="odom"
        path.header.stamp=rospy.Time.now()
        pose.header.stamp = path.header.stamp
        path.poses.append(pose)
        #Published the msg
        pub.publish(path)

    #Save the last position
    xAnt=pose.pose.orientation.x
    yAnt=pose.pose.position.y
    return path




if __name__ == '__main__':
    #Variable initialization
    global xAnt
    global yAnt
    xAnt=0.0
    yAnt=0.0

    #Node and msg initialization
    rospy.init_node('path_plotter', anonymous=True)
    pub = rospy.Publisher('/path/odometry', Path, queue_size=1)
    path = Path() #creamos el mensaje path de tipo path 
    msg = Odometry()

    #Subscription to the topic
    msg = rospy.Subscriber('/odometry ...