[ros-users] rviz OccupancyGrid message display

[Josh Faust]

Please file a ticket with the patch.

On Mon, Nov 22, 2010 at 9:54 AM, Daniel Maier <
maierd at informatik.uni-freiburg.de> wrote:

> Hi!
>
> I wonder whether it would be possible to have rviz display the occupancy
> values
> of the nav_msgs/OccupancyGrid message as probabilities instead of the
> current
> ternary representation as occupied/free/unknown.
> I think this decision is due to the fact that the costmap_2d package uses
> the same
> ternary representation. However, according to the message definition, the
> data
> field is supposed to store probabilities in the range of [0,100]. Hence, I
> think it would
> be more consistent and less confusing to have rviz indicate those
> probabilities in some way.
> I included a small patch which does what I think rviz should do.
>
> Dan
>
> On 12/25/2009 05:08 PM, Clemens Eppner wrote:
>
>> hello,
>>
>> i am trying to visualize a likelihood field in rviz. but when i use
>> nav_msgs/OccupancyGrid rviz only distinguishes between
>> occupied/unoccupied/unknown and ignores all other grey values. How can I
>> workaround this? Sending a different colored Marker/Cube message for
>> every grid map cell would certainly do the trick but may be not very
>> efficient.
>> What would you recommend?
>>
>>
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