diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..b05db73 --- /dev/null +++ b/.gitignore @@ -0,0 +1,3 @@ +CMakeLists.txt +!software_training_assignment/CMakeLists.txt +/ros_notes diff --git a/software_training_assignment/CMakeLists.txt b/software_training_assignment/CMakeLists.txt new file mode 100644 index 0000000..1f7cbd2 --- /dev/null +++ b/software_training_assignment/CMakeLists.txt @@ -0,0 +1,209 @@ +cmake_minimum_required(VERSION 3.0.2) +project(software_training_assignment) + +## Compile as C++11, supported in ROS Kinetic and newer +# add_compile_options(-std=c++11) + +## Find catkin macros and libraries +## if COMPONENTS list like find_package(catkin REQUIRED COMPONENTS xyz) +## is used, also find other catkin packages +find_package(catkin REQUIRED COMPONENTS + roscpp + rospy + std_msgs + turtlesim + message_generation +) + +## System dependencies are found with CMake's conventions +# find_package(Boost REQUIRED COMPONENTS system) + + +## Uncomment this if the package has a setup.py. This macro ensures +## modules and global scripts declared therein get installed +## See http://ros.org/doc/api/catkin/html/user_guide/setup_dot_py.html +# catkin_python_setup() + +################################################ +## Declare ROS messages, services and actions ## +################################################ + +## To declare and build messages, services or actions from within this +## package, follow these steps: +## * Let MSG_DEP_SET be the set of packages whose message types you use in +## your messages/services/actions (e.g. std_msgs, actionlib_msgs, ...). +## * In the file package.xml: +## * add a build_depend tag for "message_generation" +## * add a build_depend and a exec_depend tag for each package in MSG_DEP_SET +## * If MSG_DEP_SET isn't empty the following dependency has been pulled in +## but can be declared for certainty nonetheless: +## * add a exec_depend tag for "message_runtime" +## * In this file (CMakeLists.txt): +## * add "message_generation" and every package in MSG_DEP_SET to +## find_package(catkin REQUIRED COMPONENTS ...) +## * add "message_runtime" and every package in MSG_DEP_SET to +## catkin_package(CATKIN_DEPENDS ...) +## * uncomment the add_*_files sections below as needed +## and list every .msg/.srv/.action file to be processed +## * uncomment the generate_messages entry below +## * add every package in MSG_DEP_SET to generate_messages(DEPENDENCIES ...) + +## Generate messages in the 'msg' folder + add_message_files( + FILES + turtleDistances.msg + ) + +## Generate services in the 'srv' folder + add_service_files( + FILES + resetTurtle.srv +) + +## Generate actions in the 'action' folder + add_action_files( + FILES + moveTurtle.action + ) + +## Generate added messages and services with any dependencies listed here +generate_messages( + DEPENDENCIES + std_msgs +) + +################################################ +## Declare ROS dynamic reconfigure parameters ## +################################################ + +## To declare and build dynamic reconfigure parameters within this +## package, follow these steps: +## * In the file package.xml: +## * add a build_depend and a exec_depend tag for "dynamic_reconfigure" +## * In this file (CMakeLists.txt): +## * add "dynamic_reconfigure" to +## find_package(catkin REQUIRED COMPONENTS ...) +## * uncomment the "generate_dynamic_reconfigure_options" section below +## and list every .cfg file to be processed + +## Generate dynamic reconfigure parameters in the 'cfg' folder +# generate_dynamic_reconfigure_options( +# cfg/DynReconf1.cfg +# cfg/DynReconf2.cfg +# ) + +################################### +## catkin specific configuration ## +################################### +## The catkin_package macro generates cmake config files for your package +## Declare things to be passed to dependent projects +## INCLUDE_DIRS: uncomment this if your package contains header files +## LIBRARIES: libraries you create in this project that dependent projects also need +## CATKIN_DEPENDS: catkin_packages dependent projects also need +## DEPENDS: system dependencies of this project that dependent projects also need +catkin_package( +# INCLUDE_DIRS include +# LIBRARIES software_training_assignment + CATKIN_DEPENDS + roscpp + rospy + std_msgs + message_runtime +# DEPENDS system_lib +) + +########### +## Build ## +########### + +## Specify additional locations of header files +## Your package locations should be listed before other locations +include_directories( +# include + ${catkin_INCLUDE_DIRS} +) + +## Declare a C++ library +# add_library(${PROJECT_NAME} +# src/${PROJECT_NAME}/software_training_assignment.cpp +# ) + +## Add cmake target dependencies of the library +## as an example, code may need to be generated before libraries +## either from message generation or dynamic reconfigure +# add_dependencies(${PROJECT_NAME} ${${PROJECT_NAME}_EXPORTED_TARGETS} ${catkin_EXPORTED_TARGETS}) + +## Declare a C++ executable +## With catkin_make all packages are built within a single CMake context +## The recommended prefix ensures that target names across packages don't collide + add_executable(${PROJECT_NAME}_node src/main.cpp) + +## Rename C++ executable without prefix +## The above recommended prefix causes long target names, the following renames the +## target back to the shorter version for ease of user use +## e.g. "rosrun someones_pkg node" instead of "rosrun someones_pkg someones_pkg_node" +# set_target_properties(${PROJECT_NAME}_node PROPERTIES OUTPUT_NAME node PREFIX "") + +## Add cmake target dependencies of the executable +## same as for the library above + add_dependencies(${PROJECT_NAME}_node ${${PROJECT_NAME}_EXPORTED_TARGETS} ${catkin_EXPORTED_TARGETS}) + +## Specify libraries to link a library or executable target against + target_link_libraries(${PROJECT_NAME}_node + ${catkin_LIBRARIES} + ) + +############# +## Install ## +############# + +# all install targets should use catkin DESTINATION variables +# See http://ros.org/doc/api/catkin/html/adv_user_guide/variables.html + +## Mark executable scripts (Python etc.) for installation +## in contrast to setup.py, you can choose the destination +# catkin_install_python(PROGRAMS +# scripts/my_python_script +# DESTINATION ${CATKIN_PACKAGE_BIN_DESTINATION} +# ) + +## Mark executables for installation +## See http://docs.ros.org/melodic/api/catkin/html/howto/format1/building_executables.html +# install(TARGETS ${PROJECT_NAME}_node +# RUNTIME DESTINATION ${CATKIN_PACKAGE_BIN_DESTINATION} +# ) + +## Mark libraries for installation +## See http://docs.ros.org/melodic/api/catkin/html/howto/format1/building_libraries.html +# install(TARGETS ${PROJECT_NAME} +# ARCHIVE DESTINATION ${CATKIN_PACKAGE_LIB_DESTINATION} +# LIBRARY DESTINATION ${CATKIN_PACKAGE_LIB_DESTINATION} +# RUNTIME DESTINATION ${CATKIN_GLOBAL_BIN_DESTINATION} +# ) + +## Mark cpp header files for installation +# install(DIRECTORY include/${PROJECT_NAME}/ +# DESTINATION ${CATKIN_PACKAGE_INCLUDE_DESTINATION} +# FILES_MATCHING PATTERN "*.h" +# PATTERN ".svn" EXCLUDE +# ) + +## Mark other files for installation (e.g. launch and bag files, etc.) +# install(FILES +# # myfile1 +# # myfile2 +# DESTINATION ${CATKIN_PACKAGE_SHARE_DESTINATION} +# ) + +############# +## Testing ## +############# + +## Add gtest based cpp test target and link libraries +# catkin_add_gtest(${PROJECT_NAME}-test test/test_software_training_assignment.cpp) +# if(TARGET ${PROJECT_NAME}-test) +# target_link_libraries(${PROJECT_NAME}-test ${PROJECT_NAME}) +# endif() + +## Add folders to be run by python nosetests +# catkin_add_nosetests(test) diff --git a/software_training_assignment/action/moveTurtle.action b/software_training_assignment/action/moveTurtle.action new file mode 100644 index 0000000..326ac3f --- /dev/null +++ b/software_training_assignment/action/moveTurtle.action @@ -0,0 +1,9 @@ +# Action goal +int64 abs_x +int64 abs_y +--- +# Action Feedback +int64 abs_distance +--- +# Action result (time in sec) +int64 time \ No newline at end of file diff --git a/software_training_assignment/launch/turtlesim.launch b/software_training_assignment/launch/turtlesim.launch new file mode 100755 index 0000000..6c6292a --- /dev/null +++ b/software_training_assignment/launch/turtlesim.launch @@ -0,0 +1,13 @@ + + + + + + + + + + + + + \ No newline at end of file diff --git a/software_training_assignment/msg/turtleDistances.msg b/software_training_assignment/msg/turtleDistances.msg new file mode 100644 index 0000000..68d3290 --- /dev/null +++ b/software_training_assignment/msg/turtleDistances.msg @@ -0,0 +1,3 @@ +int64 xDistance # distance between x coordinates of the stationary and moving turtles +int64 yDistance # distance between y coordinates of the stationary and moving turtles +int64 distance # distance betweent the two turtles diff --git a/software_training_assignment/package.xml b/software_training_assignment/package.xml new file mode 100644 index 0000000..b792526 --- /dev/null +++ b/software_training_assignment/package.xml @@ -0,0 +1,72 @@ + + + software_training_assignment + 0.0.0 + The software_training_assignment package + + + + + urbanpistek + + + + + + TODO + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + catkin + roscpp + rospy + std_msgs + turtlesim + message_generation + roscpp + rospy + std_msgs + roscpp + rospy + std_msgs + turtlesim + message_runtime + + + + + + + + diff --git a/software_training_assignment/src/main.cpp b/software_training_assignment/src/main.cpp new file mode 100644 index 0000000..cdf8f3f --- /dev/null +++ b/software_training_assignment/src/main.cpp @@ -0,0 +1,111 @@ +/* +The main client for the node +*/ + +#include +#include +#include + +//Service for turtlesim spawn +#include + +//Service to clear the turtles +//(I am guessing it clears the turtles) +//Based on the wording of the documentation +#include + +//Including our custom message +#include + +//Include Action Library +#include + +//Class for determining the distances between the turtles +class turtleDistance{ + public: + int xd; + int yd; + int distance; + turtleDistance(int t1_x, int t1_y, int t2_x, int t2_y){ + xd = t1_x - t2_x; + yd = t1_y - t2_y; + distance = sqrt(xd*xd + yd*yd); + } +} + +int main(int argc, char **argv) { + ros::init(argc, argv, "main"); + ros::NodeHandle nh; + + // Clear Turtles \\ + + //Create Client object for the Clear service + ros::ServiceClient clearClient = nh.ServiceClient ("clear"); + //Calls the service, waits for the return + bool clearSuccess = clearClient.call(); + //Checks if the service call was successful + if(clearSuccess) { + ROS_INFO_STREAM("Turtles Cleared"); + } else { + ROS_ERROR_STREAM("Failed to clear turtles"); + } + + // Spawn Turtles \\ + + //Create Client object for the spawn service + ros::ServiceClient spawnClient = nh.ServiceClient ("spawn"); + + //Create the spawn request response objects + turtlesim::Spawn::Request spawn_req; + turtlesim::Spawn::Response spawn_resp; + + //All values to be passed into the service + int x_coords[2] = {5, 25}; + int y_coords[2] = {5, 10}; + string turtlenames[2] = {"stationary_turtle", "moving_turtle"}; + + //Spawns all turtles + for(int idx = 0; 0 < 2; idx++){ + //Fill the request data members + spawn_req.x = x_coords[idx]; + spawn_req.y = y_coords[idx]; + spawn_req.theta = M_PI/2; + spawn_req.name = turtlenames[idx]; + + //Calls the service, waits for the return + bool spawnSuccess = spawnClient.call(spawn_req, spawn_resp); + + //Checks if the service call was successful + if(spawnSuccess) { + ROS_INFO_STREAM("Spawned turtle: " << spawn_resp.name); + } else { + ROS_ERROR_STREAM("Failed to spawn"); + } + } + + //Infinite loop to run + while(true){ + turtleDistance turtleDist(x_coords[0], y_coords[0], x_coords[1], y_coords[1]); + //Publisher for turtle distances + ros::Publisher turtleDist_pub = nh.advertise("turtle_distnaces", 10); + turtleDist_pub.publish(turtleDist); + + //Creating a Action Client + actionlib::SimpleActionClient ac("moveTurtle", true); + ROS_INFO("Waiting for Action Server to start"); + ac.waitForServer(); + //Define the waypoint for which the turtle should move to + int x = 0; + int y = 0; + int goal[2] = {x, y}; + ac.sendGoal(goal); + + bool waitForAction = ac.waitForResult(ros::Duration(30.0)); + if(waitForAction){ + ROS_INFO("Action Finished"); + } else { + ROS_INFO("Action Failed"); + } + } + +} \ No newline at end of file diff --git a/software_training_assignment/src/moveTurtle.cpp b/software_training_assignment/src/moveTurtle.cpp new file mode 100644 index 0000000..090f002 --- /dev/null +++ b/software_training_assignment/src/moveTurtle.cpp @@ -0,0 +1,83 @@ +/* +Action server for moving the turtle +*/ + +#include +#include +#include +//Subscribe to the geometry_msgs/Twist topic +#include +#include + +//Class to define the action server +class MoveTurtleAction { + protected: + ros::NodeHandle nh; + actionlib::SimpleActionServer as; + std::string action_name; + software_training_assignment::moveTurtleFeedback feedback; + software_training_assignment::moveTurtleResult result; + + public: + + MoveTurtleAction(std::string name) : + as(nh, name, boost::bind(&MoveTurtleAction::executeCB, this, _1), false, action_name(name)) { + as.start(); + } + + ~MoveTurtleAction(void){} + + void executeCB(const software_training_assignment::moveTurtleGoalConstPtr &goal){ + + bool success = false; + geometry_msgs::Twist vel_msg; + ros::Publisher pub = nh.advertise("/turtle1/cmd_vel", 10); + int end_pos_x = goal->abs_x; + int end_pos_y = goal->abs_y; + double distance = sqrt(end_pos_x*end_pos_x + end_pos_y*end_pos_y); + double elapsed_dist = 0; + + //start time + double t0 = ros::Time::now().toSec(); + //move turtle to the end position using the unit vector for the velocity + vel_msg.linear.x = (end_pos_x/distance); + vel_msg.linear.y = (end_pos_y/distance); + vel_msg.linear.z = 0; + vel_msg.angular.x = 0; + vel_msg.angular.y = 0; + vel_msg.angular.z = 0; + + //publisher message + pub.publish(vel_msg); + + while(elapsed_dist < distance){ + double t1 = ros::Time::now().toSec(); + double t_diff = t1 - t0; + + elapsed_dist = sqrt(vel_msg.linear.x*vel_msg.linear.x + vel_msg.linear.y*vel_msg.linear.y)*t_diff; + feedback.abs_distance = elapsed_dist; + } + + //stop the turtle from moving + vel_msg.linear.x = 0; + vel_msg.linear.y = 0; + pub.publish(vel_msg); + + //Get the stop time + double t_end = ros::Time::now().toSec(); + + //set the result + result.time = (int) (t_end - t0); + + } +}; + +int main(int argc, char **argv) { + + ros::init(argc, argv, "moveTurtle"); + MoveTurtleAction moveTurtle("moveTurtle"); + ros::spin(); + + return 0; + +} \ No newline at end of file diff --git a/software_training_assignment/src/resetTurtle.cpp b/software_training_assignment/src/resetTurtle.cpp new file mode 100644 index 0000000..be1840b --- /dev/null +++ b/software_training_assignment/src/resetTurtle.cpp @@ -0,0 +1,44 @@ +/* +Server for the Reset Turtle Service +*/ + +#include +#include +//Including the service files for resetTurtle service +#include + +//Defining the service class +class TurtleReset { +public: + int start_x = 25; //Starting x pos for moving turtle + int start_y = 10; //Starting y pos for moving turtle + std::string turtle_name = "moving_turtle"; + TurtleReset() {} + + bool resetTurtlePosition(software_training_assignment::resetTurtleRequest &request, + software_training_assignment::resetTurtleResponse &response){ + ROS_INFO("Turtle Position Reset"); + + request.x = start_x; + request.y = start_y; + request.name = turtle_name; + response.success = true; + + return true; + }; +} + +int main(int argc, char **argv) { + ros::init(argc, argv, "resetTurtle"); + ros::NodeHandle nh; + + //Create an instance of the class + TurtleReset turtle; + + //Link up the service + ros::ServiceServer resetTurtle = nh.advertiseService( + "resetTurtle", &TurtleReset::resetTurtlePosition, &turtle); + + ros::spin(); //Creates a infinite loop to process callbacks + return 0; +} \ No newline at end of file diff --git a/software_training_assignment/srv/resetTurtle.srv b/software_training_assignment/srv/resetTurtle.srv new file mode 100644 index 0000000..2979f61 --- /dev/null +++ b/software_training_assignment/srv/resetTurtle.srv @@ -0,0 +1,5 @@ +int64 x # X Coordinate to reset to +int64 y # Y Coordinate to reset to +string name # Name of turtle to be reset +--- +bool success # Response indicating if it was successful \ No newline at end of file