[ros-users] Gazebo - spawn_model

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-->%0A>%20%0A>%20</launch>%0A>%20%0A>%20Where%20the%20file%20walls.model%20is%20%0A>%20%0A>%20<?xml%20version=%221.0%22%20?>%0A>%20<model:physical%20name=%22walls_model%22%0A>%20%20%20xmlns:model=%22http://playerstage.sourceforge.net/gazebo/xmlschema/#model%22%20%0A>%20%20%20xmlns:body=%22http://playerstage.sourceforge.net/gazebo/xmlschema/#body%22%20%0A>%20%20%20xmlns:geom=%22http://playerstage.sourceforge.net/gazebo/xmlschema/#geom%22%20>%0A>%20%0A>%20%0A>%20The%20thing%20is%20that%20nothing%20happens%20in%20gazebo.%20%0A>%20Any%20clue??%20Does%20exist%20any%20documentation%20about%20how%20to%20spawn%20walls%20of%20a%20map??%0A>%20%0A>%20Many%20thanks%0A>%20%0A>%20Nicolas%0A>%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20">Reply to this message
Author: User discussions
Date:  
To: ros-users
Subject: [ros-users] Gazebo - spawn_model

Hi Everybody!!!

I have made a map with gmapping, it is a file 'map.pgm'. Now I want to spawn its walls, for that I am using this launch file:

<launch>

<arg name="scenario"/>
<arg name="no_window"/>
<!-- start gazebo with an empty plane -->
<param name="/use_sim_time" value="true" />

<!-- if no window is set then start with -r (no window displayed) -->
<node name="gazebo" pkg="gazebo" type="gazebo" args="-r $(find han_Scene)/worlds/empty.world" respawn="false" output="screen" if="$(arg no_window)"/>

<!-- Otherwise start normally -->
<node name="gazebo" pkg="gazebo" type="gazebo" args="$(find han_Scene)/worlds/empty.world" respawn="false" output="screen" unless="$(arg no_window)"/>

<!-- walls-->
<param name="walls" textfile="$(find han_Scene)/scenarios/$(arg scenario)/walls.model" />

<node name="xml2factor_walls" pkg="gazebo" type="spawn_model" args="-gazebo -param walls -model walls" respawn="false" output="screen" />

<!-- <node name="xml2factor_walls" pkg="gazebo" type="spawn_model" args="-gazebo -param walls -x -16 -y -16 -model walls" respawn="false" output="screen" /> -->

</launch>

Where the file walls.model is

<?xml version="1.0" ?>
<model:physical name="walls_model"
xmlns:model="http://playerstage.sourceforge.net/gazebo/xmlschema/#model"
xmlns:body="http://playerstage.sourceforge.net/gazebo/xmlschema/#body"
xmlns:geom="http://playerstage.sourceforge.net/gazebo/xmlschema/#geom" >

  <static>true</static>
  <body:map name="walls_body">
    <xyz>-8 -8 0 </xyz>
    <geom:map name="walls_geom">
      <image>map.pgm</image> <!-- for now this is in the gazebo model dir, change later-->
      <height>2</height>
      <threshold>200</threshold>
      <granularity>1</granularity>
      <negative>false</negative>
      <scale>0.04</scale>
      <offset>0 0 0</offset>
      <material>Gazebo/Rocky</material>
    </geom:map>
  </body:map>
</model:physical>


The thing is that nothing happens in gazebo.
Any clue?? Does exist any documentation about how to spawn walls of a map??

Many thanks

Nicolas