PCL中把点云拟合成曲面（附源代码）

源代码

#include 
#include 
#include 
#include 
#include 
#include 


int main()
{
    // Load input file into a PointCloud with an appropriate type
    pcl::PointCloud::Ptr cloud(new pcl::PointCloud);
    pcl::PCLPointCloud2 cloud_blob; pcl::io::loadPCDFile("/home/oliver/pcd模型/rabbit.pcd", cloud_blob);
    pcl::fromPCLPointCloud2(cloud_blob, *cloud); //* the data should be available in cloud //
    pcl::NormalEstimation n;
    pcl::PointCloud::Ptr normals(new pcl::PointCloud);
    pcl::search::KdTree::Ptr tree(new pcl::search::KdTree);
    tree->setInputCloud(cloud);
    n.setInputCloud(cloud);
    n.setSearchMethod(tree);
    n.setKSearch(30);
    n.compute(*normals); //* normals should not contain the point normals + surface curvatures // Concatenate the XYZ and normal fields*
    pcl::PointCloud::Ptr cloud_with_normals(new pcl::PointCloud);
    pcl::concatenateFields(*cloud, *normals, *cloud_with_normals); //* cloud_with_normals = cloud + normals // Create search tree*
    pcl::search::KdTree::Ptr tree2(new pcl::search::KdTree);
    tree2->setInputCloud(cloud_with_normals); // Initialize objects
    pcl::GreedyProjectionTriangulation gp3;
    pcl::PolygonMesh triangles; // Set the maximum distance between connected points (maximum edge length)
    gp3.setSearchRadius(0.025); // Set typical values for the parameters
    gp3.setMu(2.5);
    gp3.setMaximumNearestNeighbors(100);
    gp3.setMaximumSurfaceAngle(M_PI / 4); // 45 degrees
    gp3.setMinimumAngle(M_PI / 18); // 10 degrees
    gp3.setMaximumAngle(2 * M_PI / 3); // 120 degrees
    gp3.setNormalConsistency(false); // Get result
    gp3.setInputCloud(cloud_with_normals);
    gp3.setSearchMethod(tree2);
    gp3.reconstruct(triangles); // Additional vertex information
    boost::shared_ptr viewer(new pcl::visualization::PCLVisualizer("3D Viewer"));
    viewer->setBackgroundColor(0, 0, 0);
    viewer->addPolygonMesh(triangles, "triangles");
    viewer->addPolylineFromPolygonMesh(triangles);
    //viewer->addCoordinateSystem(1.0);
    viewer->initCameraParameters();
    while (!viewer->wasStopped())
    {
        viewer->spinOnce(100);
        boost::this_thread::sleep(boost::posix_time::microseconds(100000));
    }

    // Finish

    return (0);
}

实验结果