title: How to find co-ordinates of two intersecting features (circular arc and polyline) using arcobjects in vb.net?
body: <p>I am new to arcobjects and i want to find the co-ordinates of the intersection points of a circular arc and a polyline. The problem is the my code is showing no points of intersection even though i know there is a point of intersection. The code is,</p>
  
  <pre><code>Dim circle1 As ESRI.ArcGIS.Geometry.ICircularArc = New ESRI.ArcGIS.Geometry.CircularArc()
  circle1.PutCoordsByAngle(site, 0, 2 * PI, Dist1)
  Dim obj1 As Object = Type.Missing
  Dim segCollection1 As ISegmentCollection = TryCast(New Polylineclass(), ISegmentCollection)
  segCollection1.AddSegment(DirectCast(circle1, ISegment), obj1, obj1)
  Dim geom_circle1 As IGeometry = TryCast(segCollection1, IGeometry)
  geom_circle1.SpatialReference = pGCS
  Dim pGeom As IGeometry
          Dim pTopo As ITopologicalOperator3 = geom_circle1
          Dim pPoints As IPointCollection
  If Not pTopo.IsSimple Then pTopo.Simplify()
          pGeom = pTopo.Intersect(pLine, esriGeometryDimension.esriGeometry0Dimension)
  pPoints = pGeom
  </code></pre>
  
  <p>Can somebody help me with this?</p>
  
  <p>Thanks</p>