axes_display.cpp

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/*
 * Copyright (c) 2008, Willow Garage, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the Willow Garage, Inc. nor the names of its
 *       contributors may be used to endorse or promote products derived from
 *       this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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 */

#include <boost/bind.hpp>

#include <OGRE/OgreSceneNode.h>
#include <OGRE/OgreSceneManager.h>

#include "rviz/display_context.h"
#include "rviz/frame_manager.h"
#include "rviz/ogre_helpers/axes.h"
#include "rviz/properties/float_property.h"
#include "rviz/properties/tf_frame_property.h"

#include "axes_display.h"

namespace rviz
{

AxesDisplay::AxesDisplay()
  : Display()
  , axes_( 0 )
{
  frame_property_ = new TfFrameProperty( "Reference Frame", TfFrameProperty::FIXED_FRAME_STRING,
                                         "The TF frame these axes will use for their origin.",
                                         this, NULL, true );

  length_property_ = new FloatProperty( "Length", 1.0,
                                        "Length of each axis, in meters.",
                                        this, SLOT( updateShape() ));
  length_property_->setMin( 0.0001 );

  radius_property_ = new FloatProperty( "Radius", 0.1,
                                        "Radius of each axis, in meters.",
                                        this, SLOT( updateShape() ));
  radius_property_->setMin( 0.0001 );
}

AxesDisplay::~AxesDisplay()
{
  delete axes_;
}

void AxesDisplay::onInitialize()
{
  frame_property_->setFrameManager( context_->getFrameManager() );

  axes_ = new Axes( scene_manager_, 0, length_property_->getFloat(), radius_property_->getFloat() );
  axes_->getSceneNode()->setVisible( isEnabled() );
}

void AxesDisplay::onEnable()
{
  axes_->getSceneNode()->setVisible( true );
}

void AxesDisplay::onDisable()
{
  axes_->getSceneNode()->setVisible( false );
}

void AxesDisplay::updateShape()
{
  axes_->set( length_property_->getFloat(), radius_property_->getFloat() );
  context_->queueRender();
}

void AxesDisplay::update( float dt, float ros_dt )
{
  QString qframe = frame_property_->getFrame();
  std::string frame = qframe.toStdString();

  Ogre::Vector3 position;
  Ogre::Quaternion orientation;
  if( context_->getFrameManager()->getTransform( frame, ros::Time(), position, orientation ))
  {
    axes_->setPosition( position );
    axes_->setOrientation( orientation );
    setStatus( StatusProperty::Ok, "Transform", "Transform OK" );
  }
  else
  {
    std::string error;
    if( context_->getFrameManager()->transformHasProblems( frame, ros::Time(), error ))
    {
      setStatus( StatusProperty::Error, "Transform", QString::fromStdString( error ));
    }
    else
    {
      setStatus( StatusProperty::Error,
                 "Transform",
                 "Could not transform from [" + qframe + "] to Fixed Frame [" + fixed_frame_ + "] for an unknown reason" );
    }
  }
}

} // namespace rviz

#include <pluginlib/class_list_macros.h>
PLUGINLIB_EXPORT_CLASS( rviz::AxesDisplay, rviz::Display )