Polyline from Points

BBulla

Hi,

I'm trying to create a polyline from 3 points.  I can create the From and the To node, but how do I inset the middle node??  This is the code I am using:

//Create a geometry for the line.                               
IPolyline polyline = new PolylineClass();

polyline.FromPoint = point1;
polyline.ToPoint = point3;

// Build the feature.
IFeature feature = featureClass.CreateFeature();
feature.Shape = polyline;

I have point2 which is the middle point, but can't figure out how to insert it into the feature.

Thanks!

BBulla

Hi Neil,

Thanks for the tip.  This seems to work for me:

               

//Create the geometry
                IPolyline polyline = new PolylineClass();
                IPointCollection pointCollection = polyline as IPointCollection;
                pointCollection.AddPoint(point1, ref missing, ref missing);
                pointCollection.AddPoint(point2, ref missing, ref missing);
                pointCollection.AddPoint(point3, ref missing, ref missing);

                
                // Build the feature.
                IFeature feature = featureClass.CreateFeature();
                feature.Shape = pointCollection as IPolyline;