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2013-05-15 12:32:19 -0500 commented question pointcloud to laserscan, not from kinect

Not actually, but luckily one of my colleagues encountered the same problem and wrote such a node.

2013-05-15 12:29:47 -0500 received badge  Popular Question (source)
2013-05-06 16:03:25 -0500 asked a question pointcloud to laserscan, not from kinect

Hello,

On V-Rep simulator, laser range finder (Hokuyo) passes the data in sensor_msgs/PointCloud2 format. I want to convert this data to sensor_msgs/LaserScan.

I could only find Openni-based "pointcloud_to_laserscan". Is there an easy way to transform generic pointcloud2 to laserscan?

Thank you!

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2013-02-17 01:11:50 -0500 commented question V-Rep with Groovy

I couldn't diagnose the bug, so I had to downgrade to precise & fuerte, since I have work to do on the simulator.

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2013-02-14 14:24:36 -0500 asked a question V-Rep with Groovy

Hello,

I've been having difficulty in using V-Rep with ROS Groovy properly. While the publishers and subscribers work generally with no problems, image related publishers cause the V-Rep simulator crash, e.g. when the scene "rosTopicPublisherAndSubscriber" is run.

I tried to rebuild the ros plugin (libv_repExtRos.so) in the stack that comes with the simulator. What may be the cause?

The log is as follows:

$ ./vrep.sh 
Add-on script 'vrepAddOnScript-addOnScriptDemo.lua' was loaded.
Simulator launched.
Plugin 'BubbleRob': loading...
Plugin 'BubbleRob': load succeeded.
Plugin 'Collada': loading...
Plugin 'Collada': load succeeded.
Plugin 'K3': loading...
Plugin 'K3': load succeeded.
Plugin 'Mtb': loading...
Plugin 'Mtb': load succeeded.
Plugin 'ReflexxesTypeIV': loading...
Plugin 'ReflexxesTypeIV': load succeeded.
Plugin 'RemoteApi': loading...
Plugin 'RemoteApi': load succeeded.
Plugin 'Ros': loading...
Plugin 'Ros': load succeeded.
Plugin 'SimpleFilter': loading...
Plugin 'SimpleFilter': load succeeded.
Plugin 'Urdf': loading...
Plugin 'Urdf': load succeeded.
failed to load symbols, rosdep will not function properly
Cannot import rospkg, rosdep will not function properly
ERROR:root:code for hash md5 was not found.
Traceback (most recent call last):
  File "/usr/lib/python2.7/hashlib.py", line 139, in <module>
    globals()[__func_name] = __get_hash(__func_name)
  File "/usr/lib/python2.7/hashlib.py", line 91, in __get_builtin_constructor
    raise ValueError('unsupported hash type ' + name)
ValueError: unsupported hash type md5
ERROR:root:code for hash sha1 was not found.
Traceback (most recent call last):
  File "/usr/lib/python2.7/hashlib.py", line 139, in <module>
    globals()[__func_name] = __get_hash(__func_name)
  File "/usr/lib/python2.7/hashlib.py", line 91, in __get_builtin_constructor
    raise ValueError('unsupported hash type ' + name)
ValueError: unsupported hash type sha1
ERROR:root:code for hash sha224 was not found.
Traceback (most recent call last):
  File "/usr/lib/python2.7/hashlib.py", line 139, in <module>
    globals()[__func_name] = __get_hash(__func_name)
  File "/usr/lib/python2.7/hashlib.py", line 91, in __get_builtin_constructor
    raise ValueError('unsupported hash type ' + name)
ValueError: unsupported hash type sha224
ERROR:root:code for hash sha256 was not found.
Traceback (most recent call last):
  File "/usr/lib/python2.7/hashlib.py", line 139, in <module>
    globals()[__func_name] = __get_hash(__func_name)
  File "/usr/lib/python2.7/hashlib.py", line 91, in __get_builtin_constructor
    raise ValueError('unsupported hash type ' + name)
ValueError: unsupported hash type sha256
ERROR:root:code for hash sha384 was not found.
Traceback (most recent call last):
  File "/usr/lib/python2.7/hashlib.py", line 139, in <module>
    globals()[__func_name] = __get_hash(__func_name)
  File "/usr/lib/python2.7/hashlib.py", line 91, in __get_builtin_constructor
    raise ValueError('unsupported hash type ' + name)
ValueError: unsupported hash type sha384
ERROR:root:code for hash sha512 was not found.
Traceback (most recent call last):
  File "/usr/lib/python2.7/hashlib.py", line 139, in <module>
    globals()[__func_name] = __get_hash(__func_name)
  File "/usr/lib/python2.7/hashlib.py", line 91, in __get_builtin_constructor
    raise ValueError('unsupported hash type ' + name)
ValueError: unsupported hash type sha512
Traceback (most recent call last):
  File "/usr/lib/pymodules/python2.7/rosdep2/rospack.py", line 39, in <module>
    from .main import _get_default_RosdepLookup
  File "/usr/lib/pymodules/python2.7/rosdep2/main.py", line 50, in <module>
    from .lookup import ...
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2013-02-14 14:01:27 -0500 commented answer no such option: --rosdep-install

There's a camera_umd stack that includes the new uvc_camera package.

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2013-02-10 05:55:48 -0500 answered a question Install of Groovy on Ubuntu 12.10 Problem

I had the same conflict. The conflict was actually between yaml-cpp and libyaml-cpp-dev.


sudo apt-get remove ^ros*
sudo apt-get remove --purge yaml-cpp
sudo apt-get install ros-groovy-desktop-full

resolved my issue.