topic Re: code sample for splitting a line feature into two lines at a specified point. in ArcObjects SDK Questions

code sample for splitting a line feature into two lines at a specified point.

GeorgeShi — Mon, 07 May 2012 19:20:08 GMT

Hi All,

Could you point me to any C# code samples for splitting a polyline (IPolyline) into two at a specified point (with an IPoint reference)?

Thanks in advance!

George S.

Re: code sample for splitting a line feature into two lines at a specified point.

KenBuja — Mon, 07 May 2012 20:49:50 GMT

It's a little old (and not in C#), but here's an example of splitting a line with points

Re: code sample for splitting a line feature into two lines at a specified point.

Anonymous User — Sat, 11 Dec 2021 09:25:24 GMT

For a simple line and point you can just use IFeatureEdit2.SplitWithUpdate to split the line and update the attributes.

IFeatureEdit2 featureEdit = lineFeature as IFeatureEdit2;
featureEdit.SplitWithUpdate(splitPoint);

Alternatively you can keep the returned ISet to do something useful, like keep all the lines selected in this example.

IFeatureEdit2 featureEdit = lineFeature as IFeatureEdit2;
//select features after split
featSelection.Add(lineFeature);
ISet newSet = featureEdit.SplitWithUpdate(splitPoint);
newSet.Reset();
IFeature newFeat = newSet.Next() as IFeature;
featSelection.Add(newFeat);

Re: code sample for splitting a line feature into two lines at a specified point.

GeorgeShi — Tue, 08 May 2012 12:24:02 GMT

thank you both!