Source code for base.ptu_testing

#! /usr/bin/env python
"""
This script tests the 'data stream' oriented feature of the socket interface.
"""

from morse.testing.testing import MorseTestCase

try:
    # Include this import to be able to use your test file as a regular 
    # builder script, ie, usable with: 'morse [run|exec] <your test>.py
    from morse.builder import *
except ImportError:
    pass

import sys
import math
from pymorse import Morse

[docs]def send_angles(s, pan, tilt): s.publish({'pan' : pan, 'tilt' : tilt})
[docs]class PTUTest(MorseTestCase):
[docs] def setUpEnv(self): ptu_x = 0.2020 ptu_z = 1.4400 robot = ATRV() ptu = PTU() ptu.add_stream('socket') ptu.translate(x=ptu_x, z=ptu_z) ptu.add_service('socket') ptu.properties(Speed = 0.5) robot.append(ptu) posture = PTUPosture() posture.add_stream('socket') ptu.append(posture) gyro = Gyroscope() gyro.add_stream('socket') ptu.append(gyro) chair = PassiveObject(prefix='RollingChair') chair.translate(x=ptu_x, y=3, z=0.01) env = Environment('empty', fastmode = True) env.add_service('socket')
[docs] def test_datastream(self): """ Test if we can connect to the pose data stream, and read from it. """ with Morse() as morse: gyro_stream = morse.robot.ptu.gyro posture_stream = morse.robot.ptu.posture ptu_stream = morse.robot.ptu angles = gyro_stream.get() posture = posture_stream.get() precision = 0.02 moving_precision = 0.1 self.assertAlmostEqual(posture['pan'], 0.0, delta=precision) self.assertAlmostEqual(posture['tilt'], 0.0, delta=precision) self.assertAlmostEqual(angles['yaw'], 0.0, delta=precision) self.assertAlmostEqual(angles['pitch'], 0.0, delta=precision) send_angles(ptu_stream, 1.0, 0.0) morse.sleep(1.0) # here at speed of 0.5 rad / sec, we must be at the middle # of the trip, check it :) angles = gyro_stream.get() posture = posture_stream.get() self.assertAlmostEqual(posture['pan'], 0.5, delta=moving_precision) self.assertAlmostEqual(posture['tilt'], 0.0, delta=moving_precision) self.assertAlmostEqual(angles['yaw'], 0.5, delta=moving_precision) self.assertAlmostEqual(angles['pitch'], 0.0, delta=moving_precision) morse.sleep(1.0) # now we must have achieve ptu rotation angles = gyro_stream.get() posture = posture_stream.get() self.assertAlmostEqual(posture['pan'], 1.0, delta=precision) self.assertAlmostEqual(posture['tilt'], 0.0, delta=precision) self.assertAlmostEqual(angles['yaw'], 1.0, delta=precision) self.assertAlmostEqual(angles['pitch'], 0.0, delta=precision) send_angles(ptu_stream, 1.0, -1.0) morse.sleep(2.0) angles = gyro_stream.get() posture = posture_stream.get() self.assertAlmostEqual(posture['pan'], 1.0, delta=precision) self.assertAlmostEqual(posture['tilt'], -1.0, delta=precision) self.assertAlmostEqual(angles['yaw'], 1.0, delta=precision) self.assertAlmostEqual(angles['pitch'], -1.0, delta=precision) send_angles(ptu_stream, 0.0, 0.0) morse.sleep(2.0) angles = gyro_stream.get() posture = posture_stream.get() self.assertAlmostEqual(posture['pan'], 0.0, delta=precision) self.assertAlmostEqual(posture['tilt'], 0.0, delta=precision) self.assertAlmostEqual(angles['yaw'], 0.0, delta=precision) self.assertAlmostEqual(angles['pitch'], 0.0, delta=precision)
[docs] def test_set_service(self): """ Test if we can connect to the pose data stream, and read from it. """ with Morse() as morse: gyro_stream = morse.robot.ptu.gyro posture_stream = morse.robot.ptu.posture ptu_stream = morse.robot.ptu angles = gyro_stream.get() posture = posture_stream.get() precision = 0.02 moving_precision = 0.1 self.assertAlmostEqual(posture['pan'], 0.0, delta=precision) self.assertAlmostEqual(posture['tilt'], 0.0, delta=precision) self.assertAlmostEqual(angles['yaw'], 0.0, delta=precision) self.assertAlmostEqual(angles['pitch'], 0.0, delta=precision) res = morse.rpc('robot.ptu', 'get_pan_tilt') self.assertAlmostEqual(res[0], 0.0, delta=precision) self.assertAlmostEqual(res[1], 0.0, delta=precision) morse.rpc('robot.ptu', 'set_pan_tilt', 1.0, 0.0) angles = gyro_stream.get() posture = posture_stream.get() self.assertAlmostEqual(posture['pan'], 1.0, delta=moving_precision) self.assertAlmostEqual(posture['tilt'], 0.0, delta=moving_precision) self.assertAlmostEqual(angles['yaw'], 1.0, delta=moving_precision) self.assertAlmostEqual(angles['pitch'], 0.0, delta=moving_precision) res = morse.rpc('robot.ptu', 'get_pan_tilt') self.assertAlmostEqual(res[0], 1.0, delta=precision) self.assertAlmostEqual(res[1], 0.0, delta=precision)
[docs] def test_lookat(self): """ Test if the PTU can successfully orient itself towards an absolute x,y,z position and towards a given object. """ with Morse() as morse: #TODO: Stupid duplication of SetUpEnv values. Could not find a way #to share the value. Class variables does not seem to work here. ptu_x = 0.2020 ptu_z = 1.4400 + .1 # 0.1 -> height of ATRV center precision = 0.02 res = morse.rpc('robot.ptu', 'look_at_point', 1 ,0 ,ptu_z) res = morse.rpc('robot.ptu', 'get_pan_tilt') self.assertAlmostEqual(res[0], 0.0, delta=precision) self.assertAlmostEqual(res[1], 0.0, delta=precision) res = morse.rpc('robot.ptu', 'look_at_point', -1 ,0 ,ptu_z) res = morse.rpc('robot.ptu', 'get_pan_tilt') # self.assertAlmostEqual(res[0], math.radians(180.0), delta=precision) self.assertAlmostEqual(res[1], 0.0, delta=precision) res = morse.rpc('robot.ptu', 'look_at_point', ptu_x,1,ptu_z) res = morse.rpc('robot.ptu', 'get_pan_tilt') self.assertAlmostEqual(res[0], math.radians(90), delta=precision) self.assertAlmostEqual(res[1], 0.0, delta=precision) res = morse.rpc('robot.ptu', 'look_at_point', ptu_x, -1, ptu_z) res = morse.rpc('robot.ptu', 'get_pan_tilt') self.assertAlmostEqual(res[0], math.radians(-90), delta=precision) self.assertAlmostEqual(res[1], 0.0, delta=precision) res = morse.rpc('robot.ptu', 'look_at_point', ptu_x,0,10) res = morse.rpc('robot.ptu', 'get_pan_tilt') self.assertAlmostEqual(res[1], math.radians(-90), delta=precision) # Reset position morse.rpc('robot.ptu', 'set_pan_tilt', 0.0, 0.0) res = morse.rpc('robot.ptu', 'look_at_object', 'chair') res = morse.rpc('robot.ptu', 'get_pan_tilt') self.assertAlmostEqual(res[0], math.radians(90), delta=precision) self.assertAlmostEqual(res[1], 0.466, delta=precision) ########################## Run these tests ##########################
if __name__ == "__main__": from morse.testing.testing import main main(PTUTest)