scp87

Hi all, In my work we have to run tests whose input parameters are in 3 dimensions, forming lines across a grid, like so: What I want to know is, what is the best way of quantifying the spread of these lines? If I were to use the extreme points to plot a cuboid I think that would overestimate the parameter space over which the experiments were run. I have also considered calculating the convex hull, using the extremes but I feel this might also lead to the same problem, albeit with a smaller overestimation. I need to demonstrate that the lines are well spaced out from one another, perhaps by the angles between the lines. Is there already a way of quantifying these types of things? I'd really appreciate some help with this, it's a bit of a teaser for me with my limited maths abilities. Thanks in advance