public static void FlashLine(IEnumerable <IPoint> points)
{
var activeView = (ArcMap.Application.Document as IMxDocument)?.FocusMap as IActiveView;
IGeometryBridge2 pGeoBrg = new GeometryEnvironment() as IGeometryBridge2;
IPointCollection4 pPointColl = new PolylineClass();
var aWKSPointBuffer = new IPoint[points.Count()];
var i = 0;
foreach (var point in points)
{
aWKSPointBuffer[i] = point;
i++;
}
pGeoBrg.SetPoints(pPointColl, ref aWKSPointBuffer);
var polyline = pPointColl as IPolyline;
IGeometryCollection theGeomColl = new GeometryBagClass();
theGeomColl.AddGeometry(polyline);
ITopologicalOperator theTopoOp = new PolylineClass();
theTopoOp.ConstructUnion((IEnumGeometry)theGeomColl);
IGeometry flashGeometry = theTopoOp as IGeometry;
if (flashGeometry != null)
{
EsriTools.ZoomToGeometry(activeView, polyline);
EsriTools.FlashGeometry(activeView.ScreenDisplay, new IGeometry[] { polyline });
}
}
