mirror of
https://github.com/introlab/rtabmap_ros.git
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72 lines
2.5 KiB
Python
72 lines
2.5 KiB
Python
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#!/usr/bin/env python
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import roslib
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import rospy
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import os
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import tf
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import numpy
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import evaluate_ate
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from nav_msgs.msg import Odometry
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from geometry_msgs.msg import Point
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def callback(data):
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global slamPoses
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global gtPoses
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global stamps
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global listener
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global rmse
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global lastTime
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if rospy.get_time() - lastTime < 1:
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return
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lastTime = rospy.get_time()
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t = rospy.Time(data.header.stamp.secs, data.header.stamp.nsecs)
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try:
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listener.waitForTransform(fixedFrame, baseFrame, t, rospy.Duration(0.2))
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(trans,rot) = listener.lookupTransform(fixedFrame, baseFrame, t)
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gtPoses.append(Point(trans[0], trans[1], 0))
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stamps.append(t.to_sec())
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slamPoses.append(data.pose.pose.position)
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first_xyz = numpy.empty([0,3])
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second_xyz = numpy.empty([0,3])
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for g in gtPoses:
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newrow = [g.x,g.y,g.z]
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first_xyz = numpy.vstack([first_xyz, newrow])
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for p in slamPoses:
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newrow = [p.x,p.y,p.z]
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second_xyz = numpy.vstack([second_xyz, newrow])
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first_xyz = numpy.matrix(first_xyz).transpose()
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second_xyz = numpy.matrix(second_xyz).transpose()
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rot,trans,trans_error = evaluate_ate.align(second_xyz, first_xyz)
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rmse_v = numpy.sqrt(numpy.dot(trans_error,trans_error) / len(trans_error))
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rmse.append(rmse_v)
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print " added=" + str(len(slamPoses)) + " rmse=" + str(rmse_v)
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except (tf.LookupException, tf.ConnectivityException, tf.ExtrapolationException), e:
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print str(e)
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if __name__ == '__main__':
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rospy.init_node('sync_odom_gt', anonymous=True)
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listener = tf.TransformListener()
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fixedFrame = rospy.get_param('~fixed_frame_id', 'world')
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baseFrame = rospy.get_param('~frame_id', 'base_link_gt')
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rospy.Subscriber("icp_odom", Odometry, callback, queue_size=1)
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slamPoses = []
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gtPoses = []
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stamps = []
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rmse = []
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lastTime = rospy.get_time()
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rospy.spin()
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fileSlam = open('slam_poses.txt','w')
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fileGt = open('gt_poses.txt','w')
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fileRMSE = open('rmse.txt','w')
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print "slam= " + str(len(slamPoses))
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print "gt= " + str(len(gtPoses))
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print "stamps= " + str(len(stamps))
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for c, g, t, r in zip(slamPoses, gtPoses, stamps, rmse):
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fileSlam.write('%f %f %f 0 0 0 0 1\n' % (t, c.x, c.y))
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fileGt.write('%f %f %f 0 0 0 0 1\n' % (t, g.x, g.y))
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fileRMSE.write('%f %f\n' % (t, r))
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fileSlam.close()
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fileGt.close()
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fileRMSE.close()
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