selection.cpp

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/*
 * Copyright (c) 2011, Willow Garage, Inc.
 * All rights reserved.
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 *
 *     * 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
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 *     * 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.
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// %Tag(fullSource)%
#include <ros/ros.h>
#include <stdlib.h>

#include <interactive_markers/interactive_marker_server.h>
#include <interactive_markers/tools.h>

#include <LinearMath/btVector3.h>
#include <LinearMath/btAabbUtil2.h>

namespace vm = visualization_msgs;

class PointCouldSelector
{
public:
        PointCouldSelector( boost::shared_ptr<interactive_markers::InteractiveMarkerServer> server,
            std::vector<btVector3>& points ) :
              server_( server ),
        min_sel_( -1, -1, -1 ),
        max_sel_( 1, 1, 1 ),
        points_( points )
        {
          updateBox( );
          updatePointClouds();

          makeSizeHandles();
        }

        void processAxisFeedback(
            const visualization_msgs::InteractiveMarkerFeedbackConstPtr &feedback )
        {
          ROS_INFO_STREAM( feedback->marker_name << " is now at "
              << feedback->pose.position.x << ", " << feedback->pose.position.y
              << ", " << feedback->pose.position.z );

    if ( feedback->marker_name == "min_x" ) min_sel_.setX( feedback->pose.position.x );
    if ( feedback->marker_name == "max_x" ) max_sel_.setX( feedback->pose.position.x );
    if ( feedback->marker_name == "min_y" ) min_sel_.setY( feedback->pose.position.y );
    if ( feedback->marker_name == "max_y" ) max_sel_.setY( feedback->pose.position.y );
    if ( feedback->marker_name == "min_z" ) min_sel_.setZ( feedback->pose.position.z );
    if ( feedback->marker_name == "max_z" ) max_sel_.setZ( feedback->pose.position.z );

    updateBox( );
    updateSizeHandles();

    if ( feedback->event_type == visualization_msgs::InteractiveMarkerFeedback::MOUSE_UP )
    {
      updatePointClouds();
    }

    server_->applyChanges();
        }

        vm::Marker makeBox( vm::InteractiveMarker &msg,
            btVector3 min_bound, btVector3 max_bound )
        {
          vm::Marker marker;

          marker.type = vm::Marker::CUBE;
          marker.scale.x = max_bound.x() - min_bound.x();
          marker.scale.y = max_bound.y() - min_bound.y();
          marker.scale.z = max_bound.z() - min_bound.z();
    marker.pose.position.x = 0.5 * ( max_bound.x() + min_bound.x() );
    marker.pose.position.y = 0.5 * ( max_bound.y() + min_bound.y() );
    marker.pose.position.z = 0.5 * ( max_bound.z() + min_bound.z() );
          marker.color.r = 0.5;
          marker.color.g = 0.5;
          marker.color.b = 0.5;
          marker.color.a = 0.5;

          return marker;
        }

        void updateBox( )
        {
          vm::InteractiveMarker msg;
          msg.header.frame_id = "/base_link";

          vm::InteractiveMarkerControl control;
          control.always_visible = false;
          control.markers.push_back( makeBox(msg, min_sel_, max_sel_) );
          msg.controls.push_back( control );

          server_->insert( msg );
        }

        void updatePointCloud( std::string name, std_msgs::ColorRGBA color, std::vector<btVector3> &points )
        {
          // create an interactive marker for our server
          vm::InteractiveMarker int_marker;
          int_marker.header.frame_id = "/base_link";
          int_marker.name = name;

          // create a point cloud marker
          vm::Marker points_marker;
          points_marker.type = vm::Marker::SPHERE_LIST;
          points_marker.scale.x = 0.05;
          points_marker.scale.y = 0.05;
          points_marker.scale.z = 0.05;
          points_marker.color = color;

          for ( unsigned i=0; i<points.size(); i++ )
          {
            geometry_msgs::Point p;
      p.x = points[i].x();
      p.y = points[i].y();
      p.z = points[i].z();
            points_marker.points.push_back( p );
          }

          // create container control
          vm::InteractiveMarkerControl points_control;
          points_control.always_visible = true;
          points_control.interaction_mode = vm::InteractiveMarkerControl::NONE;
          points_control.markers.push_back( points_marker );

          // add the control to the interactive marker
          int_marker.controls.push_back( points_control );

          server_->insert( int_marker );
        }

        void updatePointClouds()
        {
          std::vector<btVector3> points_in, points_out;
    points_in.reserve( points_.size() );
    points_out.reserve( points_.size() );

    // determine which points are selected (i.e. inside the selection box)
          for ( unsigned i=0; i<points_.size(); i++ )
          {
            if ( TestPointAgainstAabb2( min_sel_, max_sel_, points_[i] ) )
            {
              points_in.push_back( points_[i] );
            }
            else
            {
        points_out.push_back( points_[i] );
            }
          }

    std_msgs::ColorRGBA in_color;
    in_color.r = 1.0;
    in_color.g = 0.8;
    in_color.b = 0.0;
    in_color.a = 1.0;

    std_msgs::ColorRGBA out_color;
    out_color.r = 0.5;
    out_color.g = 0.5;
    out_color.b = 0.5;
    out_color.a = 1.0;

    updatePointCloud( "selected_points", in_color, points_in );
    updatePointCloud( "unselected_points", out_color, points_out );
        }

  void makeSizeHandles( )
  {
    for ( int axis=0; axis<3; axis++ )
    {
      for ( int sign=-1; sign<=1; sign+=2 )
      {
        vm::InteractiveMarker int_marker;
        int_marker.header.frame_id = "/base_link";
        int_marker.scale = 1.0;

        vm::InteractiveMarkerControl control;
        control.interaction_mode = vm::InteractiveMarkerControl::MOVE_AXIS;
        control.orientation_mode = vm::InteractiveMarkerControl::INHERIT;
        control.always_visible = false;

        control.orientation.w = 1;

        switch ( axis )
        {
        case 0:
          int_marker.name = sign>0 ? "max_x" : "min_x";
          int_marker.pose.position.x = sign>0 ? max_sel_.x() : min_sel_.x();
          int_marker.pose.position.y = 0.5 * ( max_sel_.y() + min_sel_.y() );
          int_marker.pose.position.z = 0.5 * ( max_sel_.z() + min_sel_.z() );
          control.orientation.x = 1;
          control.orientation.y = 0;
          control.orientation.z = 0;
          break;
        case 1:
          int_marker.name = sign>0 ? "max_y" : "min_y";
          int_marker.pose.position.x = 0.5 * ( max_sel_.x() + min_sel_.x() );
          int_marker.pose.position.y = sign>0 ? max_sel_.y() : min_sel_.y();
          int_marker.pose.position.z = 0.5 * ( max_sel_.z() + min_sel_.z() );
          control.orientation.x = 0;
          control.orientation.y = 0;
          control.orientation.z = 1;
          break;
        default:
          int_marker.name = sign>0 ? "max_z" : "min_z";
          int_marker.pose.position.x = 0.5 * ( max_sel_.x() + min_sel_.x() );
          int_marker.pose.position.y = 0.5 * ( max_sel_.y() + min_sel_.y() );
          int_marker.pose.position.z = sign>0 ? max_sel_.z() : min_sel_.z();
          control.orientation.x = 0;
          control.orientation.y = -1;
          control.orientation.z = 0;
          break;
        }

        interactive_markers::makeArrow( int_marker, control, 0.5 * sign );

        int_marker.controls.push_back( control );
        server_->insert( int_marker, boost::bind( &PointCouldSelector::processAxisFeedback, this, _1 ) );
      }
    }
  }

  void updateSizeHandles( )
  {
    for ( int axis=0; axis<3; axis++ )
    {
      for ( int sign=-1; sign<=1; sign+=2 )
      {
        std::string name;
        geometry_msgs::Pose pose;

        switch ( axis )
        {
        case 0:
          name = sign>0 ? "max_x" : "min_x";
          pose.position.x = sign>0 ? max_sel_.x() : min_sel_.x();
          pose.position.y = 0.5 * ( max_sel_.y() + min_sel_.y() );
          pose.position.z = 0.5 * ( max_sel_.z() + min_sel_.z() );
          break;
        case 1:
          name = sign>0 ? "max_y" : "min_y";
          pose.position.x = 0.5 * ( max_sel_.x() + min_sel_.x() );
          pose.position.y = sign>0 ? max_sel_.y() : min_sel_.y();
          pose.position.z = 0.5 * ( max_sel_.z() + min_sel_.z() );
          break;
        default:
          name = sign>0 ? "max_z" : "min_z";
          pose.position.x = 0.5 * ( max_sel_.x() + min_sel_.x() );
          pose.position.y = 0.5 * ( max_sel_.y() + min_sel_.y() );
          pose.position.z = sign>0 ? max_sel_.z() : min_sel_.z();
          break;
        }

        server_->setPose( name, pose );
      }
    }
  }

private:
        boost::shared_ptr<interactive_markers::InteractiveMarkerServer> server_;

        btVector3 min_sel_, max_sel_;
        std::vector<btVector3> points_;

        vm::InteractiveMarker sel_points_marker_;
        vm::InteractiveMarker unsel_points_marker_;
};




double rand( double min, double max )
{
  double t = (double)rand() / (double)RAND_MAX;
  return min + t*(max-min);
}


void makePoints( std::vector<btVector3>& points_out, int num_points )
{
  double radius = 3;
  double scale = 0.2;
  points_out.resize(num_points);
  for( int i = 0; i < num_points; i++ )
  {
    points_out[i].setX( scale * rand( -radius, radius ) );
          points_out[i].setY( scale * rand( -radius, radius ) );
    points_out[i].setZ( scale * radius * 0.2 * ( sin( 10.0 / radius * points_out[i].x() ) + cos( 10.0 / radius * points_out[i].y() ) ) );
  }
}


int main(int argc, char** argv)
{
  ros::init(argc, argv, "selection");

  // create an interactive marker server on the topic namespace simple_marker
  boost::shared_ptr<interactive_markers::InteractiveMarkerServer> server(
      new interactive_markers::InteractiveMarkerServer("selection") );

  std::vector<btVector3> points;
  makePoints( points, 10000 );

  PointCouldSelector selector( server, points );

  // 'commit' changes and send to all clients
  server->applyChanges();

  // start the ROS main loop
  ros::spin();
}
// %Tag(fullSource)%