"Steven_Lord" <email@example.com> wrote in message <firstname.lastname@example.org>... > > > "Toan Cao" <email@example.com> wrote in message > news:firstname.lastname@example.org... > > Hello everyone, > > > > I have a question relating to 3D point cloud. I hope you can help me get > > answer. > > Given an 3D point cloud (i obtained it by uniform sampling from a big > > point cloud), I would like to make an undirected graph consisting of nodes > > as the 3D points, edges as links between two adjacent nodes. > > What are steps that i need to follow to implement this graph? Or are there > > any algorithms for this problem ? Is there any available code that will > > be shared? > > How do YOU define adjacency between points in a cloud of random data? For > example, in a 2-dimensional case which cities in the list of the top 285 > most populous cities in the US would you call adjacent? > > http://en.wikipedia.org/wiki/List_of_United_States_cities_by_population > > -- > Steve Lord > email@example.com > To contact Technical Support use the Contact Us link on > http://www.mathworks.com
Thanks for your reply, Steve Lord
In my case, I define two 3D points as adjacent points if distance between two these points is less than a threshold which I define by myself. Do you have any idea for my case ? Thanks in advance.