Reordering Points

Hello, is there anybody out there, who can help me. the problem is:

I Created a pointlist of intersection points from curve with a bprep. In some cases the curve intersected my brep 2 times, so i got a list of false order points. I would like to reorder them and create a polyline (look image). After that i wanted to simplify my pointnetwork to get an simple outline

THX FOR HELPS