image_viewer.cpp

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/*
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 *
 *  Point Cloud Library (PCL) - www.pointclouds.org
 *  Copyright (c) 2011, Willow Garage, Inc.
 *  Copyright (c) 2012-, Open Perception, Inc.
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#include <boost/thread/thread.hpp>
#include <boost/date_time/posix_time/posix_time.hpp>
#include <pcl/point_cloud.h>
#include <pcl/point_types.h>
#include <pcl/common/time.h> //fps calculations
#include <pcl/io/pcd_io.h>
#include <pcl/visualization/cloud_viewer.h>
#include <pcl/visualization/image_viewer.h>
#include <pcl/io/openni_camera/openni_driver.h>
#include <pcl/console/parse.h>
#include <pcl/visualization/mouse_event.h>
#include <vector>
#include <string>

using namespace std;

int
main (int, char ** argv)
{
  pcl::PCDReader reader;
  pcl::PCLPointCloud2 cloud;
  reader.read (argv[1], cloud);
  
  pcl::PointCloud<pcl::PointXYZ> xyz;
  pcl::fromPCLPointCloud2 (cloud, xyz);
  
  pcl::visualization::ImageViewer depth_image_viewer_;
  float* img = new float[cloud.width * cloud.height];

  for (int i = 0; i < static_cast<int> (xyz.points.size ()); ++i)
    img[i] = xyz.points[i].z;
  
  depth_image_viewer_.showFloatImage (img, 
                                      cloud.width, cloud.height,
                                      std::numeric_limits<float>::min (), 
                                      // Scale so that the colors look brigher on screen
                                      std::numeric_limits<float>::max () / 10, 
                                      true);
  depth_image_viewer_.spin ();
  return (0);
}