Azeem's profile - activity

i want to use the variable value from subscriber callback function on other function.

 #! /usr/bin/env python3
import rospy
from sensor_msgs.msg import LaserScan


class path_planning:
    def __init__(self): 
        print("initalizing publisher and subscriber")
        rospy.init_node("path_plan", anonymous=True)
        self.sub = rospy.Subscriber(
            "/ebot/laser/scan", LaserScan, self.callback)
        rospy.spin()
        rospy.sleep(10)

def use(self):
    self.gg = 2
    return self.gg

def callback(self,msg):
    print("getting into callback")
    self.part_1 = msg.ranges[:145]
    self.part_2 = msg.ranges[145:289]
    self.part_3 = msg.ranges[289:433]
    self.part_4 = msg.ranges[433:577]
        self.part_5 = msg.ranges[577:]
        # print(self.part_1)

        # print(self.part_1)
        # values = splitter(self.part_1)



if __name__ =="__main__":
    path = path_planning()
    print(path.use())

i tried various ways still couldn't find one that works for me and also saw similar question on various forum. i dont know what am i doing wrong. can someone help me with that.

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