openni_3d_convex_hull.cpp
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00001 /*
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00035 
00036 #include <boost/thread/thread.hpp>
00037 #include <boost/date_time/posix_time/posix_time.hpp>
00038 #include <pcl/point_cloud.h>
00039 #include <pcl/point_types.h>
00040 #include <pcl/io/openni_grabber.h>
00041 #include <pcl/io/pcd_io.h>
00042 #include <pcl/io/openni_camera/openni_driver.h>
00043 #include <pcl/filters/passthrough.h>
00044 #include <pcl/surface/convex_hull.h>
00045 #include <pcl/console/parse.h>
00046 #include <pcl/common/time.h>
00047 #include <pcl/visualization/cloud_viewer.h>
00048 
00049 using namespace pcl;
00050 using namespace pcl::visualization;
00051 using namespace std;
00052 
00053 #define FPS_CALC(_WHAT_) \
00054 do \
00055 { \
00056     static unsigned count = 0;\
00057     static double last = pcl::getTime ();\
00058     if (++count == 100) \
00059     { \
00060       double now = pcl::getTime (); \
00061       std::cout << "Average framerate("<< _WHAT_ << "): " << double(count)/double(now - last) << " Hz" <<  std::endl; \
00062       count = 0; \
00063       last = now; \
00064     } \
00065 }while(false)
00066 
00067 template <typename PointType>
00068 class OpenNI3DConvexHull
00069 {
00070   public:
00071     typedef pcl::PointCloud<PointType> Cloud;
00072     typedef typename Cloud::Ptr CloudPtr;
00073     typedef typename Cloud::ConstPtr CloudConstPtr;
00074 
00075     OpenNI3DConvexHull (const std::string& device_id = "")
00076       : viewer ("PCL OpenNI 3D Convex Hull Viewer") 
00077     , device_id_(device_id)
00078     {
00079       pass.setFilterFieldName ("z");
00080       pass.setFilterLimits (0.0, 1.0);
00081     }
00082     
00083     void 
00084     cloud_cb (const CloudConstPtr& cloud)
00085     {
00086       boost::mutex::scoped_lock lock (mtx_);
00087       FPS_CALC ("computation");
00088 
00089       cloud_pass_.reset (new Cloud);
00090       // Computation goes here
00091       pass.setInputCloud (cloud);
00092       pass.filter (*cloud_pass_);
00093 
00094       // Estimate 3D convex hull
00095       pcl::ConvexHull<PointType> hr;
00096       hr.setInputCloud (cloud_pass_);
00097       cloud_hull_.reset (new Cloud);
00098       hr.reconstruct (*cloud_hull_, vertices_);
00099 
00100       cloud_ = cloud;
00101       new_cloud_ = true;
00102     }
00103 
00104     void
00105     viz_cb (pcl::visualization::PCLVisualizer& viz)
00106     {
00107       if (!cloud_ || !new_cloud_)
00108       {
00109         boost::this_thread::sleep(boost::posix_time::milliseconds(1));
00110         return;
00111       }
00112 
00113       {
00114         boost::mutex::scoped_lock lock (mtx_);
00115         FPS_CALC ("visualization");
00116         CloudPtr temp_cloud;
00117         temp_cloud.swap (cloud_pass_);
00118 
00119         if (!viz.updatePointCloud (temp_cloud, "OpenNICloud"))
00120         {
00121           viz.addPointCloud (temp_cloud, "OpenNICloud");
00122           viz.resetCameraViewpoint ("OpenNICloud");
00123         }
00124         // Render the data 
00125         if (new_cloud_ && cloud_hull_)
00126         {
00127           viz.removePointCloud ("hull");
00128           viz.addPolygonMesh<PointType> (cloud_hull_, vertices_, "hull");
00129         }
00130         new_cloud_ = false;
00131       }
00132     }
00133 
00134     void
00135     run ()
00136     {
00137       pcl::Grabber* interface = new pcl::OpenNIGrabber (device_id_);
00138 
00139       boost::function<void (const CloudConstPtr&)> f = boost::bind (&OpenNI3DConvexHull::cloud_cb, this, _1);
00140       boost::signals2::connection c = interface->registerCallback (f);
00141      
00142       viewer.runOnVisualizationThread (boost::bind(&OpenNI3DConvexHull::viz_cb, this, _1), "viz_cb");
00143 
00144       interface->start ();
00145       
00146       while (!viewer.wasStopped ())
00147       {
00148         boost::this_thread::sleep(boost::posix_time::milliseconds(1));
00149       }
00150 
00151       interface->stop ();
00152     }
00153 
00154     pcl::PassThrough<PointType> pass;
00155     pcl::visualization::CloudViewer viewer;
00156 
00157     std::string device_id_;
00158     boost::mutex mtx_;
00159     // Data
00160     CloudConstPtr cloud_;
00161     CloudPtr cloud_pass_, cloud_hull_;
00162     std::vector<pcl::Vertices> vertices_;
00163     bool new_cloud_;
00164 };
00165 
00166 void
00167 usage (char ** argv)
00168 {
00169   std::cout << "usage: " << argv[0] << " <device_id> <options>\n\n";
00170 
00171   openni_wrapper::OpenNIDriver& driver = openni_wrapper::OpenNIDriver::getInstance ();
00172   if (driver.getNumberDevices () > 0)
00173   {
00174     for (unsigned deviceIdx = 0; deviceIdx < driver.getNumberDevices (); ++deviceIdx)
00175     {
00176       cout << "Device: " << deviceIdx + 1 << ", vendor: " << driver.getVendorName (deviceIdx) << ", product: " << driver.getProductName (deviceIdx)
00177               << ", connected: " << driver.getBus (deviceIdx) << " @ " << driver.getAddress (deviceIdx) << ", serial number: \'" << driver.getSerialNumber (deviceIdx) << "\'" << endl;
00178       cout << "device_id may be #1, #2, ... for the first second etc device in the list or" << endl
00179            << "                 bus@address for the device connected to a specific usb-bus / address combination (works only in Linux) or" << endl
00180            << "                 <serial-number> (only in Linux and for devices which provide serial numbers)"  << endl;
00181     }
00182   }
00183   else
00184     cout << "No devices connected." << endl;
00185 }
00186 
00187 int
00188 main (int argc, char ** argv)
00189 {
00190   std::string arg;
00191   if (argc > 1)
00192     arg = std::string (argv[1]);
00193   
00194   if (arg == "--help" || arg == "-h")
00195   {
00196     usage (argv);
00197     return 1;
00198   }
00199 
00200   pcl::OpenNIGrabber grabber ("");
00201   if (grabber.providesCallback<pcl::OpenNIGrabber::sig_cb_openni_point_cloud_rgba> ())
00202   {
00203     PCL_INFO ("PointXYZRGBA mode enabled.\n");
00204     OpenNI3DConvexHull<pcl::PointXYZRGBA> v ("");
00205     v.run ();
00206   }
00207   else
00208   {
00209     PCL_INFO ("PointXYZ mode enabled.\n");
00210     OpenNI3DConvexHull<pcl::PointXYZ> v ("");
00211     v.run ();
00212   }
00213   return (0);
00214 }


pcl
Author(s): Open Perception
autogenerated on Mon Oct 6 2014 03:15:58