0.实现效果

显示箭头

    vtkOutputWindow::SetGlobalWarningDisplay(0);

    pcl::visualization::PCLVisualizer::Ptr viewer(new pcl::visualization::PCLVisualizer("3D Viewer"));
    viewer->setBackgroundColor(1, 1, 1);

    //添加箭头显示
    pcl::PointXYZ pA(0, 0, 0);
    pcl::PointXYZ pB(5, 5, 5);
    viewer->addArrow<pcl::PointXYZ>(pA, pB, 255, 0, 0, true, "arrow", 0);









    viewer->addCoordinateSystem(10);
    viewer->initCameraParameters();
    viewer->setCameraPosition(90, 90, 30, -0.5, -0.5, 0.7);



    while (!viewer->wasStopped())
    {
        viewer->spinOnce(1000);
    }

显示球体

vtkOutputWind