Sameer Parekh's profile - activity

I have a 4-core Mac with 10.7 and VMWare Fusion 5, Ubuntu 12.04 -- it works fairly well on 32-bit, but I haven't gotten it to work on 64-bit. Every now and then the gazebo or rviz window doesn't show me graphics (just a black window) and sometimes gazebo just crashes on startup. Performance is reasonable.

I actually hardcoded it (well I used $(find package)) and that didn't work either. I also tried package://etc/filepath I think.. Will try some other ideas.

Hello, here's what I know:

a) You can write a plugin that is either a "controller" or a "sensor" in order to create a sensor plugin. For example gazebo_ros_imu in hector_gazebo_plugins is a controller but gazebo_ros_sonar is a "sensor"

b) There may not be a gazebo plugin for the sensor you'd like to use. You may have to write your own plugin.

c) The best way to learn what to include is to look at the source code for the sensor plugin and also an example invocation of the sensor. For example in hector_quadrotor_controller/urdf/quadrotor_sensors.urdf.xacro you can see how to invoke the sensors implemented in hector_gazebo_plugins

Hi, I'm trying to create an outdoor world using a mesh file that I downloaded from Google SketchUp library and then exported to DAE using Google Sketchup. I am getting this error:

Error [SystemPaths.cc:262] cannot load file [mountain.dae]in GAZEBO_RESOURCE_PATH[/home/sameer/ros/falkor_quadrotor/falkor_quadrotor_gazebo/worlds:/opt/ros/fuerte/stacks/simulator_gazebo/gazebo_worlds:/opt/ros/fuerte/stacks/simulator_gazebo/gazebo/gazebo/share/gazebo]
Error [MeshManager.cc:150] Unable to find file[mountain.dae]
Segmentation fault (core dumped)

the file mountain.dae is in /home/sameer/ros/falkor_quadrotor_gazebo/worlds

I'm loading it in with my world file like this:

   <model name="ground_model" static="true">
      <link name="ground_link">
        <origin pose="0 0 0 0 0 0"/>
        <collision name="ground_collision">
          <geometry>
            <mesh filename="mountain.dae" />
          </geometry>

I've tried using package://falkor_quadrotor_gazebo/worlds/mountain.dae as the filename as well but that also gave me an unable to find/core dump error.

I have since hardcoded the pathname and now I'm getting this error:

Error [ColladaLoader.cc:66] Unable to load collada file[/home/sameer/ros/falkor_quadrotor_gazebo/Media/models/mountain.dae]
Error [ColladaLoader.cc:70] Missing COLLADA tag

As noted earlier, I saved this file using SketchUp. I looked at the file and there is a COLLADA tag right there in the beginning:

<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
<COLLADA xmlns="http://www.collada.org/2005/11/COLLADASchema" version="1.4.1">
    <asset>
        <contributor>
            <authoring_tool>SketchUp 8.0.15157</authoring_tool>
        </contributor>
        <created>2012-10-10T02:20:37Z</created>

Thanks.

I'm using ROS with the hector gazebo quadrotor package. Whenever I spawn my quadrotor I get this error:

Error [SDF.cc:722] Unable to find value for key[samples]

Can someone point me in the right direction as to where this error might be coming from? This error appears to not be causing any problems, but it is filling my screen.

Thanks!