Cloudcompare & PCL point cloud clipping (based on closed surfaces or polygons)

One 、 brief introduction

adopt 3D Closed surface or 2D Closed polygon to extract the inner or outer points of the figure , from ConvexHull or convavehull Class generation .

Two 、PCL The type of

The type is ：pcl::CropHull< PointT >, Related parameter settings ：

void setHullIndices (const std::vector< Vertices > &polygons)

Set the vertices of the polygon used to filter points .</