Add noise randomly to open3d point cloud

One 、 brief introduction

Randomly select a certain number of points in the cloud , Randomly offset it by a certain distance along the direction of the normal vector , In this way, the noise points of point cloud entities can be obtained , The magnitude of the offset is related to the scale of the point cloud , The offset distance follows Gaussian distribution .

Two 、 Implementation code

For the related configuration process, please refer to the previous article ：https://blog.csdn.net/dayuhaitang1/article/details/125269607?spm=1001.2014.3001.5502, Here is only the relevant source code .

#define OPEN3D_VISUALIZATION_HEARER
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