Howdy All, I'm running into a problem with the ITopologicalOperator.Intersect function. I am working with two features from the same geodatabase that are polylines. I am trying to find the point at which the two line intersect. I happen to know that the intersect by visually inspecting the corner. I'm sure there's some test that I should do before trying the Intersect function. I am getting a "COMException was unhandled by user code" error on the line I call the Intersect function. Here is the code, including the calling line to my function:
'Calling line here...
PointResult = GetIntersectionPoint(CenterlineToSplitFeature.ShapeCopy, IntersectingFeature.ShapeCopy)
'Function code here...
Function GetIntersectionPoint(Line1 As IGeometry, Line2 As IGeometry) As IPoint
Dim pGeom As IGeometry
Dim pTopo As ITopologicalOperator
pTopo = Line1
'Here's the line in which I get the error...
pGeom = pTopo.Intersect(Line2, esriGeometryDimension.esriGeometryNoDimension)
Dim ppoints As IPointCollection
Dim ppoint As IPoint
ppoints = pGeom
If ppoints.PointCount > 0 Then
ppoint = ppoints.Point(0)
Return ppoint
Else
Return Nothing
End If
End Function
The particular ErrorCode I get is: -2147220971Any clues as to what I'm doing wrong, or better yet as to how I might fix this...More particulars:VB .Net - Visual Studio 2010ArcMap 10.x, sp 4Windows 7 - 32-bitHere's a snapshot of the actual intesection: The lines dDO intersect, but not at any vertice on either line. Also both line do have "arc"/curve sections in themselves, if that has anything to do with it...[ATTACH=CONFIG]13182[/ATTACH]Thanks in advance,Kevin OrcuttGIS Developer/ConsultantCity of Cincinnati - Cincinnati Area GIS (CAGIS)(513) 850-1335 (cell)Kevin.Orcutt@cincinnati-oh.govwww.cagis.org
