It is very simple you just have to import the point cloud or stl data from reverse engineering scanners in catia and you can do anything you want with the generated model.

Dear shashank

thanks

but I can some references to learn.

Here is one paper i found may be helpful for your case

Dear shashank

thanks

Hello, attached a link (in French sorry) with a methodology and the sample files. Here's hoping that you'll find what you need. I remain at your disposal.

http://cao.etudes.ecp.fr/index.php?page=num_reconstruction.htm