topic Finding the segment of a point on a polyline in ArcObjects SDK Questions https://community.esri.com/t5/arcobjects-sdk-questions/finding-the-segment-of-a-point-on-a-polyline/m-p/275088#M7038 <HTML><HEAD></HEAD><BODY><SPAN>I have a polyline geometry and a certain point on the polyline.</SPAN><BR /><SPAN>I want to find the index of the polyline segment that the point belongs to.</SPAN><BR /><BR /><SPAN>What is the best way to do this?</SPAN><BR /><BR /><SPAN>Thanks</SPAN></BODY></HTML> Wed, 15 Dec 2010 09:38:54 GMT orsela 2010-12-15T09:38:54Z Finding the segment of a point on a polyline https://community.esri.com/t5/arcobjects-sdk-questions/finding-the-segment-of-a-point-on-a-polyline/m-p/275088#M7038 <HTML><HEAD></HEAD><BODY><SPAN>I have a polyline geometry and a certain point on the polyline.</SPAN><BR /><SPAN>I want to find the index of the polyline segment that the point belongs to.</SPAN><BR /><BR /><SPAN>What is the best way to do this?</SPAN><BR /><BR /><SPAN>Thanks</SPAN></BODY></HTML> Wed, 15 Dec 2010 09:38:54 GMT https://community.esri.com/t5/arcobjects-sdk-questions/finding-the-segment-of-a-point-on-a-polyline/m-p/275088#M7038 orsela 2010-12-15T09:38:54Z Re: Finding the segment of a point on a polyline https://community.esri.com/t5/arcobjects-sdk-questions/finding-the-segment-of-a-point-on-a-polyline/m-p/275089#M7039 <HTML><HEAD></HEAD><BODY><SPAN>Orsela,</SPAN><BR /><BR /><SPAN>The way I would have done this is use the </SPAN><SPAN style="font-style:italic;">ISegmentCollection</SPAN><SPAN> and it's property </SPAN><SPAN style="font-style:italic;">Segment</SPAN><SPAN> to loop over the collection of </SPAN><SPAN style="font-style:italic;">ISegments</SPAN><SPAN> then use something like </SPAN><SPAN style="font-style:italic;">IProximityOperator</SPAN><SPAN> to test if the point intersects the segment.</SPAN><BR /><BR /><SPAN>Well that's how I would have done it...</SPAN><BR /><BR /><SPAN>Duncan</SPAN></BODY></HTML> Wed, 15 Dec 2010 12:48:05 GMT https://community.esri.com/t5/arcobjects-sdk-questions/finding-the-segment-of-a-point-on-a-polyline/m-p/275089#M7039 DuncanHornby 2010-12-15T12:48:05Z Re: Finding the segment of a point on a polyline https://community.esri.com/t5/arcobjects-sdk-questions/finding-the-segment-of-a-point-on-a-polyline/m-p/275090#M7040 <HTML><HEAD></HEAD><BODY><SPAN>Use IHitTest.&nbsp; One of the return parameters of the HitTest method is the segment index.</SPAN></BODY></HTML> Wed, 15 Dec 2010 15:31:54 GMT https://community.esri.com/t5/arcobjects-sdk-questions/finding-the-segment-of-a-point-on-a-polyline/m-p/275090#M7040 NeilClemmons 2010-12-15T15:31:54Z Re: Finding the segment of a point on a polyline https://community.esri.com/t5/arcobjects-sdk-questions/finding-the-segment-of-a-point-on-a-polyline/m-p/275091#M7041 <HTML><HEAD></HEAD><BODY><SPAN>Thank you very much!</SPAN></BODY></HTML> Wed, 15 Dec 2010 19:36:13 GMT https://community.esri.com/t5/arcobjects-sdk-questions/finding-the-segment-of-a-point-on-a-polyline/m-p/275091#M7041 orsela 2010-12-15T19:36:13Z Re: Finding the segment of a point on a polyline https://community.esri.com/t5/arcobjects-sdk-questions/finding-the-segment-of-a-point-on-a-polyline/m-p/275092#M7042 <HTML><HEAD></HEAD><BODY><SPAN>Neil,</SPAN><BR /><BR /><SPAN style="font-style:italic;">IHitTest</SPAN><SPAN>... never knew about this Interface, ArcObjects just keeps on giving!</SPAN><BR /><BR /><SPAN><span class="lia-unicode-emoji" title=":slightly_smiling_face:">🙂</span></SPAN><BR /><BR /><SPAN>Duncan</SPAN></BODY></HTML> Thu, 16 Dec 2010 09:34:08 GMT https://community.esri.com/t5/arcobjects-sdk-questions/finding-the-segment-of-a-point-on-a-polyline/m-p/275092#M7042 DuncanHornby 2010-12-16T09:34:08Z