PCL create a pcd cloud - kinect

Question

This is what I have so far and I want to save pcd file from it
I know I have to do something like this but not exactly sure
pcl::PointCloud::PointPointXYZRGBA> cloud;
pcl::io:;savePCDFileASCII("test.pcd",cloud);
what do i have to add in my current code that i will have test.pcd
Thanks
#include <pcl/point_cloud.h>
#include <pcl/point_types.h>
#include <pcl/io/openni_grabber.h>
#include <pcl/visualization/cloud_viewer.h>
#include <pcl/common/time.h>
class SimpleOpenNIProcessor
{
public:
SimpleOpenNIProcessor () : viewer ("PCL OpenNI Viewer") {}
void cloud_cb_ (const pcl::PointCloud<pcl::PointXYZRGBA>::ConstPtr &cloud)
{
static unsigned count = 0;
static double last = pcl::getTime ();
if (++count == 30)
{
double now = pcl::getTime ();
std::cout << "distance of center pixel :" << cloud->points [(cloud->width >> 1) * (cloud->height + 1)].z << " mm. Average framerate: " << double(count)/double(now - last) << " Hz" << std::endl;
count = 0;
last = now;
}
if (!viewer.wasStopped())
viewer.showCloud (cloud);
}
void run ()
{
// create a new grabber for OpenNI devices
pcl::Grabber* interface = new pcl::OpenNIGrabber();
// make callback function from member function
boost::function<void (const pcl::PointCloud<pcl::PointXYZRGBA>::ConstPtr&)> f =
boost::bind (&SimpleOpenNIProcessor::cloud_cb_, this, _1);
// connect callback function for desired signal. In this case its a point cloud with color values
boost::signals2::connection c = interface->registerCallback (f);
// start receiving point clouds
interface->start ();
// wait until user quits program with Ctrl-C, but no busy-waiting -> sleep (1);
while (true)
boost::this_thread::sleep (boost::posix_time::seconds (1));
// stop the grabber
interface->stop ();
}
pcl::visualization::CloudViewer viewer;
};
int main ()
{
SimpleOpenNIProcessor v;
v.run ();
return (0);
}

Answer 1

#include <iostream>
#include <string>
#include <sstream>
#include <pcl/io/pcd_io.h>
#include <pcl/point_types.h>
#include <pcl/io/openni_grabber.h>
#include <pcl/visualization/cloud_viewer.h>
using namespace std;
const string OUT_DIR = "D:\\frame_saver_output\\";
class SimpleOpenNIViewer
{
public:
SimpleOpenNIViewer () : viewer ("PCL Viewer")
{
frames_saved = 0;
save_one = false;
}
void cloud_cb_ (const pcl::PointCloud<pcl::PointXYZRGB>::ConstPtr &cloud)
{
if (!viewer.wasStopped()) {
viewer.showCloud (cloud);
if( save_one ) {
save_one = false;
std::stringstream out;
out << frames_saved;
std::string name = OUT_DIR + "cloud" + out.str() + ".pcd";
pcl::io::savePCDFileASCII( name, *cloud );
}
}
}
void run ()
{
pcl::Grabber* interface = new pcl::OpenNIGrabber();
boost::function<void (const pcl::PointCloud<pcl::PointXYZRGB>::ConstPtr&)> f =
boost::bind (&SimpleOpenNIViewer::cloud_cb_, this, _1);
interface->registerCallback (f);
interface->start ();
char c;
while (!viewer.wasStopped())
{
//sleep (1);
c = getchar();
if( c == 's' ) {
cout << "Saving frame " << frames_saved << ".\n";
frames_saved++;
save_one = true;
}
}
interface->stop ();
}
pcl::visualization::CloudViewer viewer;
private:
int frames_saved;
bool save_one;
};
int main ()
{
SimpleOpenNIViewer v;
v.run ();
return 0;
}
Here you go.