Andrew Chambers's profile - activity

You can convert the bag file to a ".bagy" file (YAML format)

$ rostopic echo chatter > chatter.bagy

and read the YAML file in Matlab using a YAML reader. I've found this to be slow for large bag files but works for variable length messages such as LaserScans.

I receive the same error message with Electric under Oneiric if I do not have a FindEigen.cmake file. See the instructions here:

http://www.ros.org/wiki/eigen

However, I notice that recently there has been an odd edit to the wiki page that doesn't make sense. Here is a link to a good version in the history:

http://www.ros.org/wiki/eigen?action=recall&rev=59

I want to use an unscented kalman filter (UKF) in ROS to do state estimation. I can't find any ROS packages that implement an UKF so I've been looking around at filtering libraries for C++ that I could use within ROS. Does anyone have any recommendations? I've found the following libraries but many are poorly documented or inactive. Any suggestions?

UKF support:

Bayes++

bfilt

No UKF support:

Mobile Robot Programming Toolkit (The main page lists UKFs but the code doesn't appear to implement them)

Orocos Bayesian Filtering Library

KFilter

Ogre has a script to import ogre meshes into blender. Blender can then export collada.

http://www.ogre3d.org/tikiwiki/Tools%3A+Blender#Ogre_Blender_Import_Script

I'd like to display an OGRE mesh with a material in RVIZ but I'm having some difficulty. I can display the mesh by itself (without a material) by using the mesh_resource marker message. However, I can't figure out a way to get the material to display as well.

The mesh_resource marker message supports "embedded" materials which I have gotten to work with COLLADA files. Does anyone have suggestions for either converting the ogre mesh/material to a COLLADA .dae file or for getting the ogre mesh/material to work directly?

Thanks!