Thank you to the two scholars for their patient responses. I have found another way, and I will further study how to use Paraview to implement it.
If you find something yourself that is helpful, please consider posting it back as a solution to your own question. Lots of users search these existing discussions, and if someone else encounters a similar problem, they would appreciate learning how you resolved it.
Thank you for your kind reminder. I am currently working hard to find a way to implement this solution in Paraview software, and when I succeed, I will share my ideas in a timely manner.