Hi Raphael!

On 01/12/2011 03:23 PM, Raphael Favier wrote:
> I am currently working with octomap and I am running in a few errors I
> wonder if I am the only one to have:
>
> A)  I have a checksum error for the marker array messages when I want to
> visualise the cells of octomap_server in rviz.
That's a confusing message from RViz as far as I can tell, please see
http://ros-users.122217.n3.nabble.com/rviz-with-MarkerArray-td2216853.html#a2230304

Are you displaying the topic "occupied_cells_vis" as mentioned in the 
instructions at octomap.sf.net?


> B) Trying to create and object ScanNode using a pointcloud, always results
> in a seg fault at runtime:
[...]
>
>
>
> My exploration led me to understand that something must be going wrong with
> the ScanNode object and in particular its scan field, but this is as far as
> I am now.
> Does anyone has the same problem or is it just me? :)
What exactly are you trying to do with a ScanNode? From what I can tell, 
read_pointcloud.cpp is deprecated and you should use "log2graph" instead 
which does the same thing if you want to import plain text data. It 
definitely works, and read_pointcloud will be deleted in the future. 
Nevertheless, I can reproduce the problem and will have a look at it.

I don't have an idea about your other question regarding 
collision_octomap with octomap2, but maybe Kai knows about the current 
status. The wiki page definitely says that it's unreleased and for 
internal use only...

Best regards,
Armin

-- 
Armin Hornung
Humanoid Robots Lab, Albert-Ludwigs-Universität Freiburg
Contact: http://www.informatik.uni-freiburg.de/~hornunga