PCL开发——备忘1

1. QString to String

Qt打开文件保存文件时用到。

QString filename = "bunny.pcd";
string name = filename.toUtf8().constData();

2. pcl::PointIndices与pcl::PointIndices::Ptr相互转换

2.1 pcl::PointIndices转换成pcl::PointIndices::Ptr来源：

颜色区域增长分割算法用的是pcl::PointIndices

vector <pcl::PointIndices> clusters;
pcl::RegionGrowingRGB<PointT> reg;
reg.extract (clusters);

提取索引用的是pcl::PointIndices::Ptr

pcl::PointCloud<PointT>::Ptr cloud (new pcl::PointCloud<PointT>);//存放滤波结果
pcl::Extr