How much have you done with Rhino? Is your question about an assignment from a class? If so what is the subject of the class?
How many points are collected? Can you post a .3dm file or image of an example set of points? To post a file either drag it where you type a post, or click on the vertical arrow above where your type a post.
If there is a large number of point then the Patch command can be a useful tool for creating a NURBS surface. If there is a small number of points then other methods may be better than Patch.
You selected the openNURBS sub-forum. OpenNURBS is for transferring geometry between software. I have reassigned you post to the general Rhino sub-forum.