Use meshlab to sample the point cloud of CAD model and display it in PCL

The version used is solidworks 2016+meshlab 2016.12+PCL 1.8.0

solidworks part
Draw the model you want to render as point cloud data

Select when saving as STL file

mashlab part
2.1 File->import mesh-> The saved stl file

choice ok

Click to see the coordinate system of the model
2.2 Modify the coordinate system
Filters->normal, curvatures and orientation->transform:rotation（ rotate ）//translate, center, set origin( translation )
Modify the coordinate system you want according to the coordinates of the bounding box
2.3 Monte Carlo filter
Filters->sampling-> montecarlo sampling

When saving, choose ply Point cloud format for You can use PCL Open the

pcl::PointCloud<pcl::PointXYZ>::Ptr chip(new pcl::PointCloud<pcl::PointXYZ>);
	if (pcl::io::loadPLYFile<pcl::PointXYZ>("1.ply", *chip) == -1) //* load the file
	{
		PCL_ERROR("Couldn't read file test_pcd.pcd \n");
		return (-1);
	}
	else {
		cout << "chip's size is" << chip->size() << endl;
	}