Hridaynath's profile - activity

the unpack function parameter the below function is defined in here void unpack(const velodyne_msgs::VelodynePacket &am

Will some one please explain me this syntax of defining the class in bag.h

The reason why I have asked this question is - I am facing problem to create a variable/instance/reference to this class.

I don't have much exposure to c++.

Any help would be appreciated.

How to call "velodyne_rawdata::RawData::unpack()" method Hi, I am currently iterating over velodyne bag and can get Velo

@gvdhoorn Thank you very much :) The issue is solved and I could go ahead now. (I learned something today.) Use

@gvdhoorn Thank you very much :) The issue is solved and I could go ahead now. Use the edit button/link to upd

@gvdhoorn Thank you very much :) The issue is solved and I could go ahead now. Use the edit button/link to upd

@gvdhoorn Thank you very much :) The issue is solved and I could go ahead now. Use the edit button/link to upda

@gvdhoorn Thank you very much :) The issue is solved and I could go ahead now. Use the edit button/link to upda

@gvdhoorn Thank you very much :) The issue is solved and I could go ahead now. Use the edit button/link to upda

I am using this tutorial. I just want to read the Bag file, but there is linker error: undefined reference to `rosbag::Bag::Bag()'

as per tutorial I added all header files (and those all are present in the place where they are supposed to.) The header files are included successfully. I checked it by :

cout<< rosbag::rosmode::Read<< endl;

which produce the output :

2

Now if I add the following line to source code

rosbag::Bag bag;

it raising an error:

undefined reference to `rosbag::Bag::Bag()'

I have one doubt: Is rosbag/bag.h is responsible to create reference of rosbag::Bag ??

Further I have seen ros.cpp here But this bag.cpp is not there in my system. (I tried to find it with command - locate bag.cpp)

Also I don't want to use any node, launch, workspace or package of ros to do so, As I want to run this in isolation. (I am not a very good c++ programmer, forgive me if I am doing any silly mistake. :) )

Any help would be appreciated. Thank you.

@gvdhoorn I made CMakeLists.txt as you suggested: like below: cmake_minimum_required (VERSION 2.6) project (tutorial) f

what I am missing.. I have almost trying for two days now. please help..

what I am missing..

what I might missing..

both source code and CMakelists.txt is in a directory named "cmake_example". Now I ran cmake . make which does not p

I have following code in my "sampleOne.cpp" source file. rosbag::Bag bag; cout<<rosbag::bagmode::Read<

I have following code in my "sampleOne.cpp" source file. rosbag::Bag bag; cout<<rosbag::bagmode::Read<<

@gvdhoorn I made CMakeLists.txt as you suggeste: like below: cmake_minimum_required (VERSION 2.6) project (tutorial) fi

I have read some of website but I am clueless.

similarly for some task since there is no python library exist, I have to work in cpp. So my next question is it imposs

@gvdhoorn Thank you very much for your reply. But I am trying to work with ROS Bag file in Isolation (that is no workspa

can anybody help me out with my basic questions. I am new to ROS I have very basic questions, I am stuck. May be I am do