How to add a new app to PR2 web interface

[lizhi...@tum.de]

Dear all,
      I am working on high-level navigation task design recently. I need design a user interface that can open in web browser on remote computer. Maybe adding a new app to the PR2 web interface is a nice way. Does anyone know how to add a new app to the pr2 web interface ? And any link to the example?

Best wishes,
Lizhi

[Devon Ash]

Hi Lizhi,

the basics to make a new web app can be found under the webui package tutorials here http://wiki.ros.org/webui/Tutorials/Web%20Apps

Dash

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[lizhi...@tum.de]

Hi Dash,
     I have read this webui tutorial, but I can't grab the svn copy of the app sample_application with command: svn co `roslocate svn sample_application` . So I still don't know how to do it.
     Thank you anyway!
Lizhi

[Devon Ash]

Lizhi,

the sample_application can be any ROS package. You can create a catkin_package yourself using "catkin_create_pkg". The launch file parameter will direct the webui program to run a launch file inside that package.

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[lizhi...@tum.de]

Hi Dash,
    I successfully added new apps to the web_interface, but I couldn't start the app. An error occurred:  There was problem starting this app: Exception while trying to launch the rospy_tutorials/listener app: "global name 'os' is not defined"


Best regard,
Lizhi


在 2014年11月20日星期四UTC+1下午7时06分08秒，Devon Ash写道：

[Devon Ash]

Is python installed on your system? try sudo apt-get install python. If that doesn't work, I'd open the listener.py file and add the line "import os" where the other imports are.

On Monday, November 24, 2014 6:25:03 AM UTC-5, lizhi...@tum.de wrote:

Hi Dash,

    I successfully added new apps to the web_interface, but I couldn't start the app. An error occurred:  There was problem starting this app: Exception while trying to launch the rospy_tutorials/listener app: "global name 'os' is not defined"

...

[lizhi...@tum.de]

Hi Devon,
I tried, but It didn't work, the same error message as before. I tested on PR2, running Ubuntu 12.04 and ROS Fuerte. Other functions in the web user interface work well, also it shows the apps in the app panel, but cannot starts the application.

在 2014年11月24日星期一UTC+1下午10时03分18秒，Devon Ash写道：

[lizhi...@tum.de]

Hi Devon,
    The problem is fixed. I add "import os"  into the file src/launchman.py in 'launchman' package. Now I can run the TalkerListenerApp.

name: TalkerListenerApp
package: rospy_tutorials
launch_file: rospy_tutorials/001_talker_listener/talker_listener.launch
description: talker listener demo
icon:
provides: talkerlistener
depends:

Cheers,
Lizhi

在 2014年11月24日星期一UTC+1下午10时03分18秒，Devon Ash写道：