done assignment_1 by dyutimoy

assignment_1/dyutimoy_print_squares/CMakeLists.txt

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+cmake_minimum_required(VERSION 2.4.6)
+include($ENV{ROS_ROOT}/core/rosbuild/rosbuild.cmake)
+
+# Set the build type.  Options are:
+#  Coverage       : w/ debug symbols, w/o optimization, w/ code-coverage
+#  Debug          : w/ debug symbols, w/o optimization
+#  Release        : w/o debug symbols, w/ optimization
+#  RelWithDebInfo : w/ debug symbols, w/ optimization
+#  MinSizeRel     : w/o debug symbols, w/ optimization, stripped binaries
+#set(ROS_BUILD_TYPE RelWithDebInfo)
+
+rosbuild_init()
+
+#set the default path for built executables to the "bin" directory
+set(EXECUTABLE_OUTPUT_PATH ${PROJECT_SOURCE_DIR}/bin)
+#set the default path for built libraries to the "lib" directory
+set(LIBRARY_OUTPUT_PATH ${PROJECT_SOURCE_DIR}/lib)
+
+#uncomment if you have defined messages
+rosbuild_genmsg()
+#uncomment if you have defined services
+rosbuild_gensrv()
+
+#common commands for building c++ executables and libraries
+#rosbuild_add_library(${PROJECT_NAME} src/example.cpp)
+#target_link_libraries(${PROJECT_NAME} another_library)
+#rosbuild_add_boost_directories()
+#rosbuild_link_boost(${PROJECT_NAME} thread)
+#rosbuild_add_executable(example examples/example.cpp)
+#target_link_libraries(example ${PROJECT_NAME})
+#rosbuild_add_executable(talker src/talker.cpp)
+#rosbuild_add_executable(listener src/listener.cpp)
+#rosbuild_add_executable(add_two_ints_server src/add_two_ints_server.cpp)
+#rosbuild_add_executable(add_two_ints_client src/add_two_ints_client.cpp)
+rosbuild_add_executable(dyutimoy_numbers src/dyutimoy_numbers.cpp)
+rosbuild_add_executable(dyutimoy_squares src/dyutimoy_squares.cpp)
+rosbuild_add_executable(dyutimoy_print src/dyutimoy_print.cpp)

assignment_1/dyutimoy_print_squares/Makefile

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+include $(shell rospack find mk)/cmake.mk

assignment_1/dyutimoy_print_squares/mainpage.dox

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+/**
+\mainpage
+\htmlinclude manifest.html
+
+\b beginner_tutorials 
+
+<!-- 
+Provide an overview of your package.
+-->
+
+-->
+
+
+*/

assignment_1/dyutimoy_print_squares/manifest.xml

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+<package>
+  <description brief="beginner_tutorials">
+
+     beginner_tutorials
+
+  </description>
+  <author>Dyutimoy</author>
+  <license>BSD</license>
+  <review status="unreviewed" notes=""/>
+  <url>http://ros.org/wiki/beginner_tutorials</url>
+  <depend package="std_msgs"/>
+  <depend package="rospy"/>
+  <depend package="roscpp"/>
+
+</package>
+
+

assignment_1/dyutimoy_print_squares/src/dyutimoy_numbers

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+#include "ros/ros.h"
+#include "std_msgs/Int64.h"
+#include <stdio.h>
+
+#include <sstream>
+
+
+int main(int argc,char ** argv)
+{
+  ros::init(argc,argv,"dyutimoy_numbers");
+
+  ros::NodeHandle n;
+
+  ros::Publisher number_pub= n.advertise<std_msgs::Int64>("topic_number",1000);
+  //defining number_pub to  publish the numbers
+  ros::Rate loop_rate(1.0);
+  //specifying the rate
+  int count = 0;
+
+  while (ros::ok())
+    {
+      std_msgs::Int64 num;
+
+      num.data=count++;
+
+      ROS_INFO("number_publish:[%ld]",num.data);
+      //printing the content to be published
+      number_pub.publish(num);
+      //publishing the number
+      ros::spinOnce();
+
+      loop_rate.sleep();
+
+    }
+
+  return 0;
+
+
+}

assignment_1/dyutimoy_print_squares/src/dyutimoy_print

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+#include "ros/ros.h"
+#include "std_msgs/Int64.h"
+
+void numCallback(const std_msgs::Int64::ConstPtr& num)
+{
+  ROS_INFO("number[%ld]",num->data);
+  //printing the subscribered topic_numbers 
+}
+void squaresCallback(const std_msgs::Int64::ConstPtr& squares)
+{
+  ROS_INFO("squares[%ld]",squares->data);
+  //printing the subscribed topic_squares
+}
+
+int main(int argc,char **argv)
+{
+  ros::init(argc,argv,"dyutimoy_print");
+
+  ros::NodeHandle n;
+
+  ros::Subscriber print_num_sub =n.subscribe("topic_number", 1000,numCallback);
+  //subscribing to topic_number
+  ros::Subscriber print_squares_sub =n.subscribe("topic_squares", 1000,squaresCallback);
+  //subscribing to topic_squares
+  ros::spin();
+
+  return 0;
+}

assignment_1/dyutimoy_print_squares/src/dyutimoy_squares

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+#include "ros/ros.h"
+#include "std_msgs/Int64.h"
+
+#include <stdio.h> 
+#include<math.h>
+
+#include <sstream>
+
+void numCallback(const std_msgs::Int64::ConstPtr& num)
+{
+  std_msgs::Int64 squares;
+
+  squares.data=num->data*num->data;
+  //finding squares
+
+  ros::NodeHandle n1;
+
+  ros::Publisher squares_pub= n1.advertise<std_msgs::Int64>("topic_squares",1000);
+  // defining the publisher and the rate 
+  ros::Rate loop_rate(1.0);
+  while(ros::ok())
+    {
+
+      ROS_INFO ("squares_publish:[%ld]",squares.data);
+      //printing the output to be published
+      squares_pub.publish(squares);
+      //publishing
+      ros::spin();
+      loop_rate.sleep();
+    }
+}
+
+int main(int argc,char **argv)
+{
+  ros::init(argc,argv,"dyutimoy_squares");
+
+  ros::NodeHandle n;
+
+  ros::Subscriber squares_sub= n.subscribe("topic_number", 1000, numCallback);
+  //susbscribing to topic_number
+
+
+  ros::spin();
+  return 0; 
+
+
+}