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00001 /********************************************************************* 00002 * 00003 * Software License Agreement (BSD License) 00004 * 00005 * Copyright (c) 2009, Willow Garage, Inc. 00006 * All rights reserved. 00007 * 00008 * Redistribution and use in source and binary forms, with or without 00009 * modification, are permitted provided that the following conditions 00010 * are met: 00011 * 00012 * * Redistributions of source code must retain the above copyright 00013 * notice, this list of conditions and the following disclaimer. 00014 * * Redistributions in binary form must reproduce the above 00015 * copyright notice, this list of conditions and the following 00016 * disclaimer in the documentation and/or other materials provided 00017 * with the distribution. 00018 * * Neither the name of Willow Garage, Inc. nor the names of its 00019 * contributors may be used to endorse or promote products derived 00020 * from this software without specific prior written permission. 00021 * 00022 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 00023 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 00024 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 00025 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 00026 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 00027 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 00028 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 00029 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 00030 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 00031 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 00032 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 00033 * POSSIBILITY OF SUCH DAMAGE. 00034 * 00035 * Author: Eitan Marder-Eppstein 00036 *********************************************************************/ 00037 #ifndef TF2_ROS_BUFFER_CLIENT_H_ 00038 #define TF2_ROS_BUFFER_CLIENT_H_ 00039 00040 #include <tf2_ros/buffer_interface.h> 00041 #include <actionlib/client/simple_action_client.h> 00042 #include <tf2_msgs/LookupTransformAction.h> 00043 00044 namespace tf2 00045 { 00046 class BufferClient : public BufferInterface 00047 { 00048 public: 00049 typedef actionlib::SimpleActionClient<tf2_msgs::LookupTransformAction> LookupActionClient; 00050 00056 BufferClient(std::string ns, double check_frequency = 10.0, ros::Duration timeout_padding_ = ros::Duration(2.0)); 00057 00068 virtual geometry_msgs::TransformStamped 00069 lookupTransform(const std::string& target_frame, const std::string& source_frame, 00070 const ros::Time& time, const ros::Duration timeout = ros::Duration(0.0)) const; 00071 00084 virtual geometry_msgs::TransformStamped 00085 lookupTransform(const std::string& target_frame, const ros::Time& target_time, 00086 const std::string& source_frame, const ros::Time& source_time, 00087 const std::string& fixed_frame, const ros::Duration timeout = ros::Duration(0.0)) const; 00088 00097 virtual bool 00098 canTransform(const std::string& target_frame, const std::string& source_frame, 00099 const ros::Time& time, const ros::Duration timeout = ros::Duration(0.0), std::string* errstr = NULL) const; 00100 00111 virtual bool 00112 canTransform(const std::string& target_frame, const ros::Time& target_time, 00113 const std::string& source_frame, const ros::Time& source_time, 00114 const std::string& fixed_frame, const ros::Duration timeout = ros::Duration(0.0), std::string* errstr = NULL) const; 00115 00116 bool waitForServer(const ros::Duration& timeout = ros::Duration(0)) 00117 { 00118 return client_.waitForServer(timeout); 00119 } 00120 00121 private: 00122 geometry_msgs::TransformStamped processGoal(const tf2_msgs::LookupTransformGoal& goal) const; 00123 geometry_msgs::TransformStamped processResult(const tf2_msgs::LookupTransformResult& result) const; 00124 mutable LookupActionClient client_; 00125 double check_frequency_; 00126 ros::Duration timeout_padding_; 00127 }; 00128 }; 00129 #endif