example_ir_arm_distance.py

"""
Description: Simple example of how to get the IR distance from the robotic arm of baxter
Author: Igor Lirussi (https://igor-lirussi.github.io)
"""
#!/usr/bin/env python3
import time
import rospy
import cv2
import numpy as np
import baxter #here we are importing the baxter.py interface. (cause it's in this same folder, but in your project please clone the repo as submodule and import the interface as described in the readme)

# prints distance of infrared sensor in hand
rospy.init_node("testing")
rospy.sleep(2.0)
robot = baxter.BaxterRobot(rate=100, arm="left")
rospy.sleep(2.0)
robot.set_robot_state(True)


#get position of hand
p = robot._endpoint_state.pose.position
q = robot._endpoint_state.pose.orientation
#instead of the blocking
#from baxter_core_msgs.msg import EndpointState
#msg = rospy.wait_for_message("/robot/limb/left/endpoint_state", EndpointState)
#p = msg.pose.position
#q = msg.pose.orientation
print("Position:")
print(p)
print("Orientation:")
print(q.z)

while not rospy.is_shutdown():
	#from sensor_msgs.msg import Range
	#msg = rospy.wait_for_message("/robot/range/left_hand_range/state", Range)
	#string = "Dist: {:0.2f}".format(msg.range)
	string = "Dist: {}".format(robot._ir_range.range)
	print(string)
	img = np.full((600,1024,3), 39, np.uint8)
	cv2.putText(img, string, (512,300), cv2.FONT_HERSHEY_SIMPLEX, 0.7, (0,0,255), 3) 
	robot._set_display_data(cv2.resize(img, (1024,600)))


# while not rospy.is_shutdown():
#     robot.rate.sleep()

# print(robot.move_to_neutral())
# robot.set_robot_state(False)