You could import such data sets in programs such as Amira (commercial) or Slicer (open-source) for visualization. These programs also allow for segmentation, which will enable you to see the overlapping regions for further examination.

You could import such data sets in programs such as Amira (commercial) or Slicer (open-source) for visualization. These programs also allow for segmentation, which will enable you to see the overlapping regions for further examination.

I did 3D visualization of High resolution Solar images which embody large Data sets in MATLAB. It shows good results even for video generating

You can visualize in

http://www.youtube.com/watch?v=Ao6M768B6V4

Amira or Slicer are definitely good options. If you want to do this kind of analysis in Matlab, you will probably need to wrap your data points in a convex hulls with specific visual properties so that you can 'see' the overlap. It could require quite a bit of customization, but it can definitely be done.

Thanks for the input everyone. I was thinking of adding arguments cumulatively across x-y to build up a dimension in z (using MATLAB) but now it seems there may be a faster way of getting the same result. I will check out the software packages mentioned. Thanks again everyone.

i am recommending you RapidMiner R tool which is free avaliable and also suppert many ways to import data. it is also provide 3D visualization for large dataset.

Dear,

I have an youtube video that shows how to create a 3D animation of a scatterplot. Maybe it can help.

Please take a look at:

http://youtu.be/TDZkJ00AZug

Regards