point_visual.cpp

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#include <OGRE/OgreVector3.h>
#include <OGRE/OgreSceneNode.h>
#include <OGRE/OgreSceneManager.h>

#include <rviz/ogre_helpers/shape.h>

#include <ros/ros.h>

#include "point_visual.h"

namespace rviz
{

    PointStampedVisual::PointStampedVisual( Ogre::SceneManager* scene_manager, Ogre::SceneNode* parent_node )
    {
        scene_manager_ = scene_manager;

        // Ogre::SceneNode s form a tree, with each node storing the
        // transform (position and orientation) of itself relative to its
        // parent.  Ogre does the math of combining those transforms when it
        // is time to render.
        //
        // Here we create a node to store the pose of the Point's header frame
        // relative to the RViz fixed frame.
        frame_node_ = parent_node->createChildSceneNode();

        // We create the arrow object within the frame node so that we can
        // set its position and direction relative to its header frame.
        point_ = new rviz::Shape( rviz::Shape::Sphere, scene_manager_, frame_node_ );
    }

    PointStampedVisual::~PointStampedVisual()
    {
        // Delete the arrow to make it disappear.
        delete point_;

        // Destroy the frame node since we don't need it anymore.
        scene_manager_->destroySceneNode( frame_node_ );
    }


void PointStampedVisual::setMessage( const geometry_msgs::PointStamped::ConstPtr& msg )
    {
        Ogre::Vector3 scale( radius_, radius_, radius_ );
        point_->setScale( scale );

        // Set the orientation of the arrow to match the direction of the
        // acceleration vector.
        Ogre::Vector3 point( msg->point.x, msg->point.y, msg->point.z);
        point_->setPosition( point );
    }

    // Position and orientation are passed through to the SceneNode.
    void PointStampedVisual::setFramePosition( const Ogre::Vector3& position )
    {
        frame_node_->setPosition( position );
    }

    void PointStampedVisual::setFrameOrientation( const Ogre::Quaternion& orientation )
    {
        frame_node_->setOrientation( orientation );
    }

    // Color is passed through to the rviz object.
    void PointStampedVisual::setColor( float r, float g, float b, float a )
    {
        point_->setColor( r, g, b, a );
    }

    void PointStampedVisual::setRadius( float r )
    {
        radius_ = r;
    }
} // end namespace rviz