Why is Gazebo not loading a model?

asked 2017-04-24 21:38:12 -0600

matrhint
52 ●3 ●5 ●9

I am trying to work with Gazebo using xacro files. It seems that it works with Rviz, but there is no model in Gazebo. Please take a look at the files here: https://github.com/matrhint/model-pro... I am running Kinetic. I am using roslaunch lawnmow_description lawnmow_rviz.launch and roslaunch lawnmow_gazebo lawnmow_world.launch to test it out.

Thank you for any assistance.

Comments

In your URDF and xacro files, you shouldn't have absolute paths to resources like meshes. Use the package:// syntax instead.

Geoff ( 2017-04-25 02:55:44 -0600 )edit

add a comment

answered 2017-04-25 03:00:47 -0600

Geoff

4203 ●18 ●103 ●63

updated 2017-04-26 20:45:35 -0600

When I changed all the mesh paths in lawnmow.xacro to use the package:// syntax, Gazebo displayed the model when I launched lawnmow_world.launch. image description

For example, the first one I changed to:

package://lawnmow_description/meshes/frame.stl

I also had to add <intertial> tags to the lfcaster and rfcaster links, because Gazebo will not simulate links that do not have inertia information.

edit flag offensive delete link

Comments

Thank you for your fast response! That is exactly what I want. I tried: <mesh scale="0.01 0.01 0.01" filename="package://lawnmow_description/meshes/frame.stl"/> and it didn't work for me. I then changed it to <mesh filename="package://lawnmow_description/meshes/frame.stl"/> another no-go.

matrhint ( 2017-04-25 19:01:59 -0600 )edit

Edit: I was changing the wrong file. Your suggestion was correct. Thank you for your fast response and clear answer!

matrhint ( 2017-04-25 19:29:39 -0600 )edit

Any ideas why the front casters aren't showing up in gazebo?

matrhint ( 2017-04-25 21:20:25 -0600 )edit

You don't have <intertial> tags in the two caster links. Gazebo will only use links that have intertia information.

Geoff ( 2017-04-26 02:38:23 -0600 )edit

You are my hero, but it didn't work. I copied the <inertial> information from the left_wheel and placed it after the </visual> tab, but still no casters.

matrhint ( 2017-04-26 04:51:10 -0600 )edit

Can you put a copy of your lawnmow.xacro somewhere so I can see? I did exactly that and I get casters.

Geoff ( 2017-04-26 18:39:22 -0600 )edit

I updated it on the github. Thanks again.

matrhint ( 2017-04-26 18:55:21 -0600 )edit

Using your exact source in Kinetic, and running roslaunch lawnmow_gazebo lawnmow_world.launch, I get casters. Does Gazebo print any errors at all? Have you tried cleaning your workspace?

Geoff ( 2017-04-26 19:31:41 -0600 )edit

see more comments

Why is Gazebo not loading a model?

Comments

1 Answer

Comments

Question Tools

Stats

Related questions

Why is Gazebo not loading a model? edit

Comments

1 Answer

Comments

Question Tools

Stats

Related questions

Why is Gazebo not loading a model?