error loading a mesh of turtlebot3 with ros3djs

asked 2020-01-06 07:52:04 -0600

kallivalli gravatar image

hello,

im getting error in console

GET http://resources.robotwebtools.org/turtlebot3_description/meshes/bases/burger_base.stl net::ERR_NAME_NOT_RESOLVED

here are my commands that im entering

   $roslaunch turtlebot3_gazebo turtlebot3_world.launch
    $rosparam set use_gui true
    $rosrun tf2_web_republisher tf2_web_republisher
    $roslaunch rosbridge_server rosbridge_websocket.launch

i have placed my file in /var/www/html and installed apache server and im opening it i and here is my code

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">

<link rel="stylesheet" type="text/css"
  href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/themes/base/jquery-ui.css" />
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.0/jquery.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.23/jquery-ui.min.js"></script>


<script src="http://static.robotwebtools.org/threejs/current/three.js"></script>
<script src="javascript/ColladaLoader.js"></script>
<script src="http://static.robotwebtools.org/threejs/current/STLLoader.js"></script>
<script src="javascript/ColladaLoader2.js"></script>


<script src="http://static.robotwebtools.org/EventEmitter2/current/eventemitter2.min.js"></script>

<script src="http://static.robotwebtools.org/roslibjs/current/roslib.js"></script>
<script src="http://static.robotwebtools.org/ros3djs/current/ros3d.min.js"></script>

<script src="http://static.robotwebtools.org/keyboardteleopjs/current/keyboardteleop.js"></script>

<script>
  /**
   * Setup all GUI elements when the page is loaded. 
   */

  var teleop_topic = '/cmd_vel'
  var base_frame = 'odom';

  var init_flag = false

function submit_values(){
  teleop_topic = document.getElementById("tele_topic").value;
  base_frame = document.getElementById("base_frame_name").value;

  init_flag = true;
  init();
}



  function init() {

    if(init_flag == true)
    {
    // Connecting to ROS.
    var ros = new ROSLIB.Ros({
      url : 'ws://localhost:9090'
    });


    // Initialize the teleop.
    var teleop = new KEYBOARDTELEOP.Teleop({
      ros : ros,
      topic : teleop_topic
    });

////////////////////////////////////////////////////////////////////////////////////////////////////////
    var viewer = new ROS3D.Viewer({
      background : 000,
      divID : 'urdf',
      width : 1280,
      height : 600,
      antialias : true

    });

    // Add a grid.
    viewer.addObject(new ROS3D.Grid());

    // Setup a client to listen to TFs.
    var tfClient = new ROSLIB.TFClient({
      ros : ros,
      fixedFrame : base_frame,
      angularThres : 0.01,
      transThres : 0.01,
      rate : 10.0
    });

    // Setup the URDF client.

    var urdfClient = new ROS3D.UrdfClient({
      ros : ros,
      tfClient : tfClient,
      path : 'http://resources.robotwebtools.org/',
      rootObject : viewer.scene,
      loader : ROS3D.COLLADA_LOADER
    });


///////////////////////////////////////////////////////////////////////////////////////////////////

    // Create a UI slider using JQuery UI.
    $('#speed-slider').slider({
      range : 'min',
      min : 0,
      max : 100,
      value : 90,
      slide : function(event, ui) {
        // Change the speed label.
        $('#speed-label').html('Speed: ' + ui.value + '%');
        // Scale the speed.
        teleop.scale = (ui.value / 100.0);
      }
    });

    // Set the initial speed .
    $('#speed-label').html('Speed: ' + ($('#speed-slider').slider('value')) + '%');
    teleop.scale = ($('#speed-slider').slider('value') / 100.0);

    init_flag = false;
  }
  }

</script>
</head>

<body onload="init()">
  <h1>Web-browser keyboard teleoperation</h1>


<form >
  Teleop topic:<br>
  <input type="text" name="Teleop Topic" id='tele_topic' value="/cmd_vel_mux/input/teleop">
  <br>
  Base frame:<br>
  <input type="text" name="Base frame" id='base_frame_name' value="/odom">
  <br>

 <input type="button" onmousedown="submit_values()" value="Submit"> 

</form> 

  <p>Run the following commands in the terminal then refresh this page. Check the JavaScript
    console for the output.</p>
  <ol>
    <li><tt>roslaunch turtlebot_gazebo turtlebot_world.launch </tt></li>
    <li><tt>roslaunch rosbridge_server rosbridge_websocket.launch</tt></li>
    <li>Use your ...
(more)
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Comments

net::ERR_NAME_NOT_RESOLVED

this tells us that the hostname (ie: resources.robotwebtools.org) simply cannot be resolved to its IP address.

Does the host still exist?

gvdhoorn gravatar image gvdhoorn  ( 2020-01-06 07:55:28 -0600 )edit

no . what i can replace with ? i cant see path of my turtlebot3 in my system

kallivalli gravatar image kallivalli  ( 2020-01-07 01:07:27 -0600 )edit