I was curious if anybody knows of an analysis plugin that will give a 3-D snapshot of a track as follows:

1) Frequency plot (EQ)
2) Panning plot
3) Volume plot

In addition, the plug should be able to layer 2 or more tracks (different colors?) so that comparisons can be made between analyses.

I have read in several journals that each instrument or voice needs to occupy it's own spot in the mix. There are usually 3-D diagram examples that show visually what this means. Usually the plots are EQ, Panning, and Reverb (spacial relationships), but I am not sure how you could plot this spacial relationship.

Any ideas if this exists, or how it can be done now if it doesn't exist?