I found some related papers for others who are interested: http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.56.3068&rep=rep1&type=pdf http://citeseerx.

I found some related papers for others who are interested: http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.56.3068&rep=rep1&type=pdf http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.56.... http://bmi.osu.edu/resources/techreports/ahmedBokhariV21.pdf http://bmi.osu.edu/resources/techreports/ahmedBokhariV21.pdf Also a book: Space-Filling Curves: An Introduction with Applications in Scientific Computing by Michael Bader