Finding the segment of a point on a polyline

[orsela]

I have a polyline geometry and a certain point on the polyline.
I want to find the index of the polyline segment that the point belongs to.

What is the best way to do this?

Thanks

[DuncanHornby]

Orsela,

The way I would have done this is use the ISegmentCollection and it's property Segment to loop over the collection of ISegments then use something like IProximityOperator to test if the point intersects the segment.

Well that's how I would have done it...

Duncan

[NeilClemmons]

Use IHitTest.  One of the return parameters of the HitTest method is the segment index.

[orsela]

Thank you very much!

[DuncanHornby]

Neil,

IHitTest... never knew about this Interface, ArcObjects just keeps on giving!

🙂

Duncan