Hi Hamish,

Thank You for the interessting link and I am glad to here, that the script is interessting for you.
yes, I think that a gaussian method could be faster, also for this small matricies. But, I have some Problems at the Moment: Frist - Time(as we all;-). The second enlarge the first Problem. The script has a serious design error, that kills also the performance. The function for calculating the centerpoints (csp) has 3 points as Parameters. So every call, biscectional planes were calculated - for the next call the second plane of the previous calculation is the first of the actual calculation. So I have a lot of redundant plane calcs. To improve the Performance a lot of changes have to be done.

Kind regards
Karsten