Replicate Hatch command smallest encompassing loop selection

[zdenda_borovec]

Is there a method to find/create the smallest loop (polyline) encompassing a given point, similar to how the Hatch command finds it?

I am not sure if the correct tags got applied, but ideally it should be in .NET C#.

Attached image shows what I mean. A buch of white polylines in drawing, Red is the point, Blue is the desired result.

[ActivistInvestor · Accepted solution]

BOUNDARY command, or Editor.TraceBoundary()

[zdenda_borovec]

Exactly what I needed! Thank you so much!