Overlap domain

@MatrixRatrix wrote:

Hello,

I have a Polyline that has two line segments that overlap each other:
Example.3dm (31.8 KB)

Example837×511 11.6 KB

I need the domain between these two overlapping segments:

import rhinoscriptsyntax as rs
curve = rs.GetObject(“Get Curve”, rs.filter.curve)
point = rs.GetPointOnCurve(curve, “Pick a test point”)
domain = rs.CurveDomain(curve)
cutpoint = rs.CurveClosestPoint( curve, point,0 );
print domain
print cutpoint

In this case the returns domain is always from the top line, and I also need the bottom line domain, how can I choose which domain to return?

Top curve or bottom curve?
Domain closer to the start point, or closer to the end point??

Any idea?

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