Intersection Point

deleted-user-hb3f0SCDAPf8 — Fri, 11 Feb 2011 16:05:26 GMT

Could someone please tell me how to get the intersection point(s) of a graphic object and a feature element?

Best regards,

Re: Intersection Point

JenniferNery — Sat, 11 Dec 2021 22:38:05 GMT

Have you looked at this sample? http://help.arcgis.com/en/webapi/silverlight/samples/start.htm#Intersect

When the Intersect is completed, you can get the vertices in your geometry. These are your intersection points.

I think another way is to do the following (assuming you are working with polygon):

if (first.Geometry.Extent.Intersects(second.Geometry.Extent))
{
 PointCollection pc = new PointCollection(); // will contain all intersection points
 foreach (var p in (first.Geometry as Polygon).Rings)
 {
  for (int i = 0; i < p.Count; i++)
   if (p.Extent.Intersects(second.Geometry.Extent))
    pc.Add(p.Clone());
 }
}

The intersection in the above code checks against geometry extent though. So maybe you need to get the polylines formed by the vertices and check intersection against these polyline extent.

topic Intersection Point in ArcGIS API for Silverlight Questions

Intersection Point

Re: Intersection Point