Optimisation of Minkowski function

[RichardFreml]

Hi. Is there any developer who is interested to improve speed of Minkowski function?
During testing of this function on 2 polygons where each has 200 points I found, that 70 ms takes evaluation of function Minkowski() and then 2600 ms takes Union for all 40000 polygons created by function Minkowski(). Those new polygons are simple, 4 edges polygons, for which Union might be found more faster. As I expecting.
I am ready to participate on the costs of development...