Go to the documentation of this file.00001 #include <ros/ros.h>
00002 #include <kinematics_msgs/GetKinematicSolverInfo.h>
00003 #include <kinematics_msgs/GetPositionIK.h>
00004
00005 int main(int argc, char **argv){
00006 ros::init (argc, argv, "get_ik");
00007 ros::NodeHandle rh;
00008
00009 ros::service::waitForService("pr2_right_arm_kinematics/get_ik_solver_info");
00010 ros::service::waitForService("pr2_right_arm_kinematics/get_ik");
00011
00012 ros::ServiceClient query_client = rh.serviceClient<kinematics_msgs::GetKinematicSolverInfo>("pr2_right_arm_kinematics/get_ik_solver_info");
00013 ros::ServiceClient ik_client = rh.serviceClient<kinematics_msgs::GetPositionIK>("pr2_right_arm_kinematics/get_ik");
00014
00015
00016 kinematics_msgs::GetKinematicSolverInfo::Request request;
00017 kinematics_msgs::GetKinematicSolverInfo::Response response;
00018
00019 if(query_client.call(request,response))
00020 {
00021 for(unsigned int i=0; i< response.kinematic_solver_info.joint_names.size(); i++)
00022 {
00023 ROS_DEBUG("Joint: %d %s",i,response.kinematic_solver_info.joint_names[i].c_str());
00024 }
00025 }
00026 else
00027 {
00028 ROS_ERROR("Could not call query service");
00029 ros::shutdown();
00030 exit(1);
00031 }
00032
00033 kinematics_msgs::GetPositionIK::Request gpik_req;
00034 kinematics_msgs::GetPositionIK::Response gpik_res;
00035 gpik_req.timeout = ros::Duration(5.0);
00036 gpik_req.ik_request.ik_link_name = "r_wrist_roll_link";
00037
00038 gpik_req.ik_request.pose_stamped.header.frame_id = "torso_lift_link";
00039 gpik_req.ik_request.pose_stamped.pose.position.x = 0.75;
00040 gpik_req.ik_request.pose_stamped.pose.position.y = -0.188;
00041 gpik_req.ik_request.pose_stamped.pose.position.z = 0.0;
00042
00043 gpik_req.ik_request.pose_stamped.pose.orientation.x = 0.0;
00044 gpik_req.ik_request.pose_stamped.pose.orientation.y = 0.0;
00045 gpik_req.ik_request.pose_stamped.pose.orientation.z = 0.0;
00046 gpik_req.ik_request.pose_stamped.pose.orientation.w = 1.0;
00047 gpik_req.ik_request.ik_seed_state.joint_state.position.resize(response.kinematic_solver_info.joint_names.size());
00048 gpik_req.ik_request.ik_seed_state.joint_state.name = response.kinematic_solver_info.joint_names;
00049 for(unsigned int i=0; i< response.kinematic_solver_info.joint_names.size(); i++)
00050 {
00051 gpik_req.ik_request.ik_seed_state.joint_state.position[i] = (response.kinematic_solver_info.limits[i].min_position + response.kinematic_solver_info.limits[i].max_position)/2.0;
00052 }
00053 if(ik_client.call(gpik_req, gpik_res))
00054 {
00055 if(gpik_res.error_code.val == gpik_res.error_code.SUCCESS)
00056 for(unsigned int i=0; i < gpik_res.solution.joint_state.name.size(); i ++)
00057 ROS_INFO("Joint: %s %f",gpik_res.solution.joint_state.name[i].c_str(),gpik_res.solution.joint_state.position[i]);
00058 else
00059 ROS_ERROR("Inverse kinematics failed");
00060 }
00061 else
00062 ROS_ERROR("Inverse kinematics service call failed");
00063 ros::shutdown();
00064 }