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  #include <pcl/point_types.h>
  #include <pcl/io/pcd_io.h> #include <pcl/io/ply_io.h>
  #include <pcl/kdtree/kdtree_flann.h>
  #include <pcl/features/normal_3d_omp.h> #include <pcl/features/normal_3d.h>
  #include <pcl/surface/gp3.h> #include <pcl/surface/poisson.h>
  #include <pcl/visualization/pcl_visualizer.h>
  #include <boost/thread/thread.hpp> #include <fstream> #include <iostream> #include <stdio.h> #include <string.h> #include <string>
  int main(int argc, char** argv) { 	 	char tmpStr[100]; 	strcpy(tmpStr,argv[1]); 	char* pext = strrchr(tmpStr, '.'); 	std::string extply("ply"); 	std::string extpcd("pcd"); 	if(pext){ 		*pext='\0'; 		pext++; 	} 	std::string ext(pext); 	 	if (!((ext == extply)||(ext == extpcd))){ 		std::cout << "文件格式不支持!" << std::endl; 		std::cout << "支持文件格式:*.pcd和*.ply!" << std::endl; 		return(-1); 	}
  	   pcl::PointCloud<pcl::PointXYZ>::Ptr cloud(new pcl::PointCloud<pcl::PointXYZ>) ;  	if (ext == extply){ 		if (pcl::io::loadPLYFile(argv[1] , *cloud) == -1){ 			PCL_ERROR("Could not read ply file!\n") ; 			return -1; 		} 	} 	else{ 		if (pcl::io::loadPCDFile(argv[1] , *cloud) == -1){ 			PCL_ERROR("Could not read pcd file!\n") ; 			return -1; 		} 	}
  	   pcl::PointCloud<pcl::PointNormal>::Ptr cloud_with_normals(new pcl::PointCloud<pcl::PointNormal>);    pcl::NormalEstimation<pcl::PointXYZ , pcl::Normal> n ;   pcl::PointCloud<pcl::Normal>::Ptr normals(new pcl::PointCloud<pcl::Normal>) ;   pcl::search::KdTree<pcl::PointXYZ>::Ptr tree(new pcl::search::KdTree<pcl::PointXYZ>) ;   tree->setInputCloud(cloud) ;   n.setInputCloud(cloud) ;   n.setSearchMethod(tree) ;   n.setKSearch(20); 	n.compute(*normals); 
  	   pcl::concatenateFields(*cloud , *normals , *cloud_with_normals) ;
  	   pcl::search::KdTree<pcl::PointNormal>::Ptr tree2(new pcl::search::KdTree<pcl::PointNormal>) ;   tree2->setInputCloud(cloud_with_normals) ; 	   pcl::Poisson<pcl::PointNormal> pn ; 	pn.setConfidence(false);  	pn.setDegree(2);  	pn.setDepth(8);  	pn.setIsoDivide(8);  	pn.setManifold(false);  	pn.setOutputPolygons(false);  	pn.setSamplesPerNode(3.0);  	pn.setScale(1.25);  	pn.setSolverDivide(8);  	
  	 	pn.setSearchMethod(tree2); 	pn.setInputCloud(cloud_with_normals); 	 	pcl::PolygonMesh mesh ; 	 	pn.performReconstruction(mesh);
  	 	pcl::io::savePLYFile("result.ply", mesh);
  	 	boost::shared_ptr<pcl::visualization::PCLVisualizer> viewer(new pcl::visualization::PCLVisualizer("3D viewer")) ; 	viewer->setBackgroundColor(0 , 0 , 0) ; 	viewer->addPolygonMesh(mesh , "my") ; 	viewer->addCoordinateSystem (50.0); 	viewer->initCameraParameters() ; 	while (!viewer->wasStopped()){ 		viewer->spinOnce(100) ; 		boost::this_thread::sleep(boost::posix_time::microseconds(100000)) ; 	}
  	return 0; }
 
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