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Mesh not loading (STL)

I am trying to make a robot definition with stl mesh files. When I tried to load a STL file as mesh IN Rviz the terminal showed the following error :

 [ERROR] [1521562296.640053756]: Error retrieving file [file:///home/xavier/catkin_ws/src/urdf_pkg/meshes/base-1.STL]: Couldn't open file /home/xavier/catkin_ws/src/urdf_pkg/meshes/base-1.STL
[ERROR] [1521562296.642119566]: Could not load model 'package://urdf_pkg/meshes/base-1.STL' for link 'base_link': OGRE EXCEPTION(6:FileNotFoundException): Cannot locate resource package://urdf_pkg/meshes/base-1.STL in resource group Autodetect or any other group. in ResourceGroupManager::openResource at /build/ogre-1.9-mqY1wq/ogre-1.9-1.9.0+dfsg1/OgreMain/src/OgreResourceGroupManager.cpp (line 756)
[ERROR] [1521562296.643222961]: Could not load model 'package://urdf_pkg/meshes/base-1.STL' for link 'base_link': OGRE EXCEPTION(6:FileNotFoundException): Cannot locate resource package://urdf_pkg/meshes/base-1.STL in resource group Autodetect or any other group. in ResourceGroupManager::openResource at /build/ogre-1.9-mqY1wq/ogre-1.9-1.9.0+dfsg1/OgreMain/src/OgreResourceGroupManager.cpp (line 756)

I coppied it as it is, I am also adding the launch codes and urdf codes

URDF : 

<?xml version="1.0"?>
 <robot name="base">


  <link name="base_link">
    <visual>
      <geometry>
       <mesh filename="package://urdf_pkg/meshes/base-1.STL"/>
      </geometry>
      <origin rpy="0 0 0" xyz="0 0 0"/>      
    </visual>
  </link>

</robot>

LAUNCH CODE : 

<launch>
  <arg name="model" />

   <param name="robot_description" textfile="$(find urdf_pkg)/urdf/base.urdf" />
  <param name="use_gui" value="true"/>

   <node name="joint_state_publisher" pkg="joint_state_publisher" type="joint_state_publisher" />

   <node name="robot_state_publisher" pkg="robot_state_publisher" type="state_publisher" />

   <node name="rviz" pkg="rviz" type="rviz" args="-d $(find urdf_pkg)/urdf.rviz" required="true" />
</launch>

please help me solve the issue, thanks.

Asked by Prof. xavier on 2018-03-20 11:10:07 UTC

Comments

always use the Preformatted Code button (the one with 101010 on it) when copy-pasting errors. Otherwise they get filtered out of the text and won't show up.

Asked by gvdhoorn on 2018-03-20 11:11:59 UTC

Where is base-1.STL on your machine?

Asked by David Lu on 2018-03-20 11:14:02 UTC

gvdhoorn I did not understand what you explained, my bad, please try to explain it some other way.

Asked by Prof. xavier on 2018-03-20 11:21:54 UTC

David lu base-1.stl is in urdf_pkg/meshes

Asked by Prof. xavier on 2018-03-20 11:22:39 UTC

base-1.stl

Linux is case-sensitive. If you change the extension in your urdf to .stl (instead of .STL), do the errors go away?

Asked by gvdhoorn on 2018-03-20 14:02:42 UTC

Did you resolve this issue @Prof. xavier?

Asked by gvdhoorn on 2018-03-24 05:23:15 UTC

@gvdhoorn it takes only .STL extension i use that so many times in my urdf files

Asked by lagankapoor on 2018-04-16 03:10:04 UTC

I'm not entirely sure I understand what you're trying to say.

Asked by gvdhoorn on 2018-04-16 04:03:33 UTC

@gvdhoorn Sir i am saying because i have done that Work last month

Asked by lagankapoor on 2018-04-16 04:38:48 UTC

The issue @Prof. xavier was heaving could be caused by the fact that Linux uses case-sensitive file systems. On those systems, 'STL' != 'stl'. .stl works fine in URDFs, as long as the filename of your mesh actually has a lowercase extension.

Asked by gvdhoorn on 2018-04-16 09:19:36 UTC

Have you solve this problem? Are there some conditions for the STL file?

Asked by Hedy on 2018-12-26 03:41:49 UTC

Answers