$search
00001 /********************************************************************* 00002 * Software License Agreement (BSD License) 00003 * 00004 * Copyright (c) 2008, Willow Garage, Inc. 00005 * All rights reserved. 00006 * 00007 * Redistribution and use in source and binary forms, with or without 00008 * modification, are permitted provided that the following conditions 00009 * are met: 00010 * 00011 * * Redistributions of source code must retain the above copyright 00012 * notice, this list of conditions and the following disclaimer. 00013 * * Redistributions in binary form must reproduce the above 00014 * copyright notice, this list of conditions and the following 00015 * disclaimer in the documentation and/or other materials provided 00016 * with the distribution. 00017 * * Neither the name of the Willow Garage nor the names of its 00018 * contributors may be used to endorse or promote products derived 00019 * from this software without specific prior written permission. 00020 * 00021 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 00022 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 00023 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 00024 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 00025 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 00026 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 00027 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 00028 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 00029 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 00030 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 00031 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 00032 * POSSIBILITY OF SUCH DAMAGE. 00033 *********************************************************************/ 00034 00035 #include <ros/ros.h> 00036 #include <calibration_msgs/IntervalStamped.h> 00037 #include <laser_cb_detector/laser_interval_calc.h> 00038 #include <message_filters/subscriber.h> 00039 #include <message_filters/time_synchronizer.h> 00040 00041 using namespace laser_cb_detector; 00042 00043 void syncCallback(ros::Publisher* pub, 00044 const calibration_msgs::DenseLaserSnapshotConstPtr& snapshot, 00045 const calibration_msgs::CalibrationPatternConstPtr& features) 00046 { 00047 calibration_msgs::IntervalStamped out; 00048 00049 bool success; 00050 00051 success = LaserIntervalCalc::computeInterval(*snapshot, *features, out.interval); 00052 00053 if (!success) 00054 { 00055 ROS_WARN("Failed trying to compute interval. Not going to publish"); 00056 return; 00057 } 00058 00059 out.header.stamp = snapshot->header.stamp; 00060 pub->publish(out); 00061 } 00062 00063 int main(int argc, char** argv) 00064 { 00065 ros::init(argc, argv, "laser_interval_calc"); 00066 00067 ros::NodeHandle nh; 00068 00069 ros::Publisher pub = nh.advertise<calibration_msgs::IntervalStamped>("laser_interval", 1); 00070 00071 message_filters::Subscriber<calibration_msgs::DenseLaserSnapshot> snapshot_sub(nh, "snapshot", 1); 00072 message_filters::Subscriber<calibration_msgs::CalibrationPattern> features_sub(nh, "features", 1); 00073 message_filters::TimeSynchronizer<calibration_msgs::DenseLaserSnapshot, 00074 calibration_msgs::CalibrationPattern> sync(snapshot_sub, features_sub, 2); 00075 sync.registerCallback(boost::bind(&syncCallback, &pub, _1, _2)); 00076 00077 ros::spin(); 00078 00079 return 0; 00080 }