Extract Spatial ID from a Polygon

rajujee — Tue, 20 Apr 2021 18:30:21 GMT

Hi,

I am new to ArcObjects, I am spinning my wheels extracting Spatial ID from a polygon. I have a features with 100 blocks when I add a point features on polygon feature. I need its ID.

Any help or link is appreciated.

Re: Extract Spatial ID from a Polygon

BrentHoskisson — Fri, 23 Apr 2021 14:39:33 GMT

You need to spend more time constructing your question so it will be understood. It appears you are trying to to search polygons with a point feature. If this is so you want to start by creating a spatial filter

Here is a sample that is set up to intersect:

public static ISpatialFilter CreateSpatialFilter(IFeatureClass fc, IGeometry shape) { if (fc == null) return null; ISpatialFilter sf = new SpatialFilterClass(); sf.GeometryField = fc.ShapeFieldName; sf.Geometry = shape; sf.SpatialRel = esriSpatialRelEnum.esriSpatialRelIntersects; return sf; }

Then you can use this directly on your feature class using the Search function..

IFeatureCursor fcursor = fc.Search(CreateSpatialFilter(fc, shape), true);

Now index through the cursor to get the polygon id's.

Good Luck

Brent Hoskisson

Re: Extract Spatial ID from a Polygon

rajujee — Thu, 29 Apr 2021 20:18:48 GMT

This worked as a charm. Thanks Brent.

topic Extract Spatial ID from a Polygon in ArcObjects SDK Questions

Extract Spatial ID from a Polygon

Re: Extract Spatial ID from a Polygon

Re: Extract Spatial ID from a Polygon