On Mon, Nov 11, 2013 at 1:12 PM, Sietse Achterop <s [dot] achterop [..] ...> wrote:
> Dear list,
>
> I am trying to get the HelloRobot example from
> http://wiki.ros.org/rtt_ros_integration_example
> to work.

As you can see from this page the example or at least the page is
highly outdated as it still refers to Electric, which is marked as EOL
.

> It builds, but I can't get it to work. The complexity of orocos/ros/c++ still confuses me:(
> Hopefully someone can give me some pointers so I can get a working example.
> Here the details.
>
> Context:
> ros-hydro
> - installed via ubuntu (12.04, 64 bit) packages.
> orocos toolchain-2.7 using catkin
> - via git clone --recursive http://git.gitorious.org/orocos-toolchain/orocos_toolchain.git -b toolchain-2.7
> rtt_ros_integration using catkin
> - via git clone https://github.com/jhu-lcsr-forks/rtt_ros_integration.git
> (removed directory tests/rtt_roscomm_tests because of errors in building)
> This all seems to build install properly. I can use ros-examples, and orocos-examples separately.
>
> Now the example.
> I only use the rtt_ros_integration_example (directory) from
> http://wiki.ros.org/rtt_ros_integration_example
> this because the rtt_actionlib_examples gives errors.
> Again using catkin, it build-installs ok
>
> I try to start it with
> rosrun ocl deployer-gnulinux -s example.ops
> (there is no deploy.ops file as mentioned on the web page)
> this gives:
> [rosrun] Couldn't find executable named deployer-gnulinux below /home/p100213/ROSWS/install_isolated/share/ocl
>
> (Why does is look for the deployer there?)

Did you source your install or devel space of the orocos_toolchain?

can you try to execute the following after sourcing the install-space
of the orocos_toolchain:

which deployer

Also the new rtt_ros_integration that you are using is still under
development. I do not know what it's stability status is.

> If I try
> roslaunch rtt_ros_integration_example example.launch
> we get:
>
> ... logging to /home/p100213/.ros/log/3b86eede-4ab4-11e3-b4d8-002481150e15/roslaunch-fwn-nb4-16-202-15815.log
> Checking log directory for disk usage. This may take awhile.
> Press Ctrl-C to interrupt
> Done checking log file disk usage. Usage is <1GB.
>
> while processing /home/p100213/ROSWS/install_isolated/share/rtt_ros/launch/deployer.launch:
> Invalid roslaunch XML syntax: [Errno 2] No such file or directory: u'/home/p100213/ROSWS/install_isolated/share/rtt_ros/launch/deployer.launch'
>
> (There is no such file there indeed.)
>
> What am I doing wrong?

Again: did your source all relevant install spaces?

> Next to that I cannot find where the rtt_ros integration code is really used in the code.
> Looking in src/HelloRobot.cpp, I don't see this.
> I see the include, and I see the dependency mentioned in package.xml, but no real use of the code.
> So how is the connection really made to ros.
> Is that done via "rosrun ocl ...."?
> But how contretely?
>

It uses ROS messages as data-structs on its ports, allowing it to
easily create data streams from the ports to ROS topics. The stream
creation is done in the example.ops file.

Ruben.

> Thanks in advance.
> Sietse
>
> --
> Orocos-Users mailing list
> Orocos-Users [..] ...
> http://lists.mech.kuleuven.be/mailman/listinfo/orocos-users

On 11-11-13 18:24, Willy Lambert wrote:

> Are you sure thatOrocos toolchain 2.7 is released ? I've seen a branch in git but not offical communication on this.

I first tried using the current stable 2.6 version, but got into trouble, see my earlier messages starting from Oct. 23.
Ruben more or less suggested to try this. And it looked promising at first.
But you're right, it is a bit ambitious;)

I now know a little bit more about Orocos, so I will try again with the stable versions.
On the website I only see a solution using the combination ros-groovy with orocos toolchain-2.6.
Are that the versions I should use, or is it possible/better to use ros-hydro with orocos toolchain-2.6?

Thanks in advance,
Sietse

As the deployer program is not found you should check that orocos has been
compiled and if yes if it is on the ros searching path. I'm away from my
computer so I can't help more, but nothing will work until this is not
corrected.
Le 11 nov. 2013 13:13, "Sietse Achterop" <s [dot] achterop [..] ...> a écrit :

> Dear list,
>
> I am trying to get the HelloRobot example from
> http://wiki.ros.org/rtt_ros_integration_example
> to work.
> It builds, but I can't get it to work. The complexity of orocos/ros/c++
> still confuses me:(
> Hopefully someone can give me some pointers so I can get a working example.
> Here the details.
>
> Context:
> ros-hydro
> - installed via ubuntu (12.04, 64 bit) packages.
> orocos toolchain-2.7 using catkin
> - via git clone --recursive
> http://git.gitorious.org/orocos-toolchain/orocos_toolchain.git -b
> toolchain-2.7
> rtt_ros_integration using catkin
> - via git clone
> https://github.com/jhu-lcsr-forks/rtt_ros_integration.git
> (removed directory tests/rtt_roscomm_tests because of errors in
> building)
> This all seems to build install properly. I can use ros-examples, and
> orocos-examples separately.
>
> Now the example.
> I only use the rtt_ros_integration_example (directory) from
> http://wiki.ros.org/rtt_ros_integration_example
> this because the rtt_actionlib_examples gives errors.
> Again using catkin, it build-installs ok
>
> I try to start it with
> rosrun ocl deployer-gnulinux -s example.ops
> (there is no deploy.ops file as mentioned on the web page)
> this gives:
> [rosrun] Couldn't find executable named deployer-gnulinux below
> /home/p100213/ROSWS/install_isolated/share/ocl
>
> (Why does is look for the deployer there?)
>
> If I try
> roslaunch rtt_ros_integration_example example.launch
> we get:
>
> ... logging to
> /home/p100213/.ros/log/3b86eede-4ab4-11e3-b4d8-002481150e15/roslaunch-fwn-nb4-16-202-15815.log
> Checking log directory for disk usage. This may take awhile.
> Press Ctrl-C to interrupt
> Done checking log file disk usage. Usage is <1GB.
>
> while processing
> /home/p100213/ROSWS/install_isolated/share/rtt_ros/launch/deployer.launch:
> Invalid roslaunch XML syntax: [Errno 2] No such file or directory:
> u'/home/p100213/ROSWS/install_isolated/share/rtt_ros/launch/deployer.launch'
>
> (There is no such file there indeed.)
>
> What am I doing wrong?
>
> Next to that I cannot find where the rtt_ros integration code is really
> used in the code.
> Looking in src/HelloRobot.cpp, I don't see this.
> I see the include, and I see the dependency mentioned in package.xml, but
> no real use of the code.
> So how is the connection really made to ros.
> Is that done via "rosrun ocl ...."?
> But how contretely?
>
> Thanks in advance.
> Sietse
>
> --
> Orocos-Users mailing list
> Orocos-Users [..] ...
> http://lists.mech.kuleuven.be/mailman/listinfo/orocos-users
>