Skip to main content

Questions tagged [voxel-grid]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
0 votes
1 answer
7 views

How .launch file uses "onInit" and "subscribe" of class(nodelet) in pcl_ros

Hi, I have gone through the pcl_ros source code and understand all things how it is using PCL. I have cleared understanding regarding the pcl_ros - PCL but not understand how .launch file using its &...
user avatar
0 votes
1 answer
52 views

Slow build time

I am experiencing very slow builds (and I have been for a while) using catkin_make building the ROS navigation stack. I have tried -DCMAKE_BUILD_TYPE=Release, ...
user avatar
0 votes
1 answer
1 view

Redusing resolution from a cad model

Is there a ros package to reduce the resolution of any cad model (.stl/.dae/.obj)? I am looking for something like this, where any cad model can be converted into a lower resolution voxel grid I need ...
user avatar
0 votes
1 answer
31 views

How to create/display a static voxel_grid map?

I've searched quite a bit, and to no avail, for a modern, minimal example of creating a static voxel map and displaying that map in rviz. Most tutorials have incomplete steps, or aim at map creation ...
user avatar
0 votes
1 answer
19 views

3D costmap as obstacle for MoveIt!

Dear Ros Users, I am using MoveIt for controlling a robotic arm Is there a way to use a 3D grid as costmap as obstacle for MoveIT planner? Thanks! Originally posted by Rahndall on ROS Answers with ...
user avatar
0 votes
1 answer
24 views

How does Voxel grid works?

How does voxel grid implementation works? I need more details, cant seems to visualize it. Is there any other object avoidance method for mobile based? Thanks in advance :D Originally posted by ...
user avatar
0 votes
1 answer
10 views

Filtering pointcloud with voxel grid giving different number of data points

Hi, I try using the voxel grid filter on a pointcloud generated by the Ensenso camera. While the camera is held stationary, it gives a constant number of data points, however with a voxel grid filter ...
user avatar
0 votes
1 answer
8 views

How to prevent costmap to clear obstacles that are too close for the kinect to detect?

Hi! I am using the ROS Navigation stack to navigate through known space. The robot is equipped with a 2D Laserscanner and a Kinect. I want to use the kinect for obstacles that are too low or too high ...
user avatar
0 votes
1 answer
10 views

VoxelGridPlugin clearing voxels

I'm trying to use an RGBD camera (I'm using gazebo_plugins gazebo_ros_openni_kinect plugin in simulation with gazebo 1.9.1) with the VoxelLayer. The problem I'm facing is basically that the voxel_grid ...
user avatar
0 votes
1 answer
3 views

Error in dependencies voxel_grid

When I make rosdep check costmap_2d i get this error : ...
user avatar
0 votes
1 answer
37 views

difference between octomap and voxel grid?

hello everyone, I am new in ROS, and I would like to know the defference betwen octomap and voxel_grid ? I have looking for information on internet but I have find the same information for both of ...
GuillaumeB's user avatar
0 votes
1 answer
22 views

Can I visualize a voxel_grid on RViz?

Costmap_2D publishes voxel_grid (type costmap_2d/VoxelGrid) when publish_voxel_map parameter is set to true, but I cannot find the proper display on RViz. I suppose I need to install the appropriate ...
user avatar
0 votes
1 answer
1 view

PCL Tutorial voxel_grid Permission Denied

Hello, I am new to ROS, Ubuntu, and PCL. I have Ubuntu 11.10. I am attempting to complete the ROS PCL Tutorials at http://www.ros.org/wiki/pcl/Tutorials. I got stuck at step 4.1. I was unable to ...
user avatar
0 votes
2 answers
44 views

voxel_grid visualization in rviz

Hi all! I'm working with the navigation stacks, I made a costmap_2d/VoxelGrid with all my sensor data in it and I use this to navigate through the environment. I can see the laser and all my sensor in ...
user avatar
0 votes
1 answer
4 views

Voxelgrid where the true position of each voxel is returned

In the voxelgrid tutorial, it is stated that: ...in each voxel (i.e., 3D box), all the points present will be approximated (i.e., downsampled) with their centroid. This approach is a bit slower ...
user avatar