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A feature overlapped with another feature

ShaningYu

In my ArcObjects program, I need to check where a polygon feature (named f_A here) is included / overlapped with another polygon feature (named f_B hear). Is there an ArcObjects method for the this check-up? Thanks.

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bixb0012

How to Execute Spatial Queries—ArcObjects 10.4 Help for Java | ArcGIS for Desktop . The article is for Java, but the concepts translate to .NET.

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kenbuja

It's an IGeometry5 object

ShaningYu

Ken: Thanks for your code. Could you tell me what is the data type of pOverlapGeometry  since I need to convert your VB into c#.  Thanks.<BR />

kenbuja

Here's how I determine if a polygon overlaps another polygon

pTopoOp <SPAN class="operator token">=</SPAN> pFeature<SPAN class="punctuation token">.</SPAN>Shape
Dim pInGeometry As ESRI<SPAN class="punctuation token">.</SPAN>ArcGIS<SPAN class="punctuation token">.</SPAN>Geometry<SPAN class="punctuation token">.</SPAN>IGeometry5
pInGeometry <SPAN class="operator token">=</SPAN> pOtherFeature<SPAN class="punctuation token">.</SPAN>Shape
If pInGeometry<SPAN class="punctuation token">.</SPAN>Dimension <SPAN class="operator token">=</SPAN> ESRI<SPAN class="punctuation token">.</SPAN>ArcGIS<SPAN class="punctuation token">.</SPAN>Geometry<SPAN class="punctuation token">.</SPAN>esriGeometryDimension<SPAN class="punctuation token">.</SPAN>esriGeometry2Dimension Then 'check <SPAN class="keyword token">if</SPAN> the feature <SPAN class="keyword token">is</SPAN> a polygon
&nbsp; pOverlapGeometry <SPAN class="operator token">=</SPAN> pTopoOp<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Intersect</SPAN><SPAN class="punctuation token">(</SPAN>pInGeometry<SPAN class="punctuation token">,</SPAN> ESRI<SPAN class="punctuation token">.</SPAN>ArcGIS<SPAN class="punctuation token">.</SPAN>Geometry<SPAN class="punctuation token">.</SPAN>esriGeometryDimension<SPAN class="punctuation token">.</SPAN>esriGeometry2Dimension<SPAN class="punctuation token">)</SPAN>
&nbsp; If Not pOverlapGeometry Is Nothing And Not pOverlapGeometry<SPAN class="punctuation token">.</SPAN>IsEmpty Then
&nbsp;&nbsp;&nbsp; <SPAN class="string token">'you'</SPAN>ve got an overlapping polygon
&nbsp; End If
End If<SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

ShaningYu

Thanks a lot.

bixb0012

How to Execute Spatial Queries—ArcObjects 10.4 Help for Java | ArcGIS for Desktop . The article is for Java, but the concepts translate to .NET.

MicahBabinski

Hi Shaning,

This would be really easy with arcpy, but from what I can tell this article might help you out with how to use the Intersect tool with ArcObjects geoprocessing:

https://www.esri.com/news/arcuser/1207/files/gp_arcobjects.pdf

Or, the ITopologicalOperator.Intersect method could be used to determine if there is overlap.

Good luck!

Micah

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