Can someone give me some code about spatial query like this?

kju — Tue, 22 Oct 2013 05:43:50 GMT

Description??
I would like to query Feature in a specified layer that intersects the specified Feature.For example, I would like to query all of the roads that intersect my specified lake.
As the figure below,The load "1,2,3" all intersect with lake "0",so they should be query out.
[ATTACH=CONFIG]28504[/ATTACH]

I can just get selection feature in the MapControl,but I do not know what to do then.

//Here "f" can be "lake",and I do not know how to select the roads.
            ISelection selection = mapControl.Map.FeatureSelection;
            IEnumFeature enumF = (IEnumFeature)selection;
            IFeature f = null;
            while((f = enumF.Next()) != null) {
                //To do with the selected feature with 'f'.
            }

I would appreciate it if you can help me.Thanks very much.

Re: Can someone give me some code about spatial query like this?

kju — Sat, 11 Dec 2021 21:59:55 GMT

Description�?
I would like to query Feature in a specified layer that intersects the specified Feature.For example, I would like to query all of the roads that intersect my specified lake.
As the figure below,The load "1,2,3" all intersect with lake "0",so they should be query out.
[ATTACH=CONFIG]28504[/ATTACH]

I can just get selection feature in the MapControl,but I do not know what to do then.
//Here "f" can be "lake",and I do not know how to select the roads.
            ISelection selection = mapControl.Map.FeatureSelection;
            IEnumFeature enumF = (IEnumFeature)selection;
            IFeature f = null;
            while((f = enumF.Next()) != null) {
                //To do with the selected feature with 'f'.
            }
I would appreciate it if you can help me.Thanks very much.

I seems that I make it:

/// <summary>
        /// Query feature class with specified geometry.
        /// </summary>
        /// <param name="baseGeometry">The base gemotry.</param>
        /// <param name="featureClass">the featurey class to query.</param>
        /// <param name="spatialRel">RelationShip between base geometry and query feature class.</param>
        /// <returns>The query result cursor.</returns>
        public static ESRI.ArcGIS.Geodatabase.IFeatureCursor  QueryFeatureClass(ESRI.ArcGIS.Geometry.IGeometry baseGeometry, ESRI.ArcGIS.Geodatabase.IFeatureClass featureClass, ESRI.ArcGIS.Geodatabase.esriSpatialRelEnum spatialRel){
            ESRI.ArcGIS.Geodatabase.ISpatialFilter spatialFilter = new ESRI.ArcGIS.Geodatabase.SpatialFilterClass();
            spatialFilter.Geometry = baseGeometry;
            spatialFilter.SpatialRel = spatialRel;
            return featureClass.Search(spatialFilter,false);
        }

//mapControl contains all of the layers.
            ISelection selection = mapControl.Map.FeatureSelection;
            IEnumFeature enumF = (IEnumFeature)selection;
            IFeature f = null;
            while((f = enumF.Next()) != null) {
                //The fcQuery contains the query result.
                IFeatureClass fcQuery = ((IFeatureLayer)this._MapCon.get_Layer(combox_layer.SelectedIndex)).FeatureClass;
                IFeatureCursor fc = RelationShip.QueryFeatureClass(f.Shape, fcQuery, esriSpatialRelEnum.esriSpatialRelIntersects);
                IFeature fResult = null;
                while((fResult = fc.NextFeature()) != null) {
                    MessageBox.Show(fResult.OID.ToString());    //To do with 'fResult'.
                }
            }

topic Can someone give me some code about spatial query like this? in ArcObjects SDK Questions

Can someone give me some code about spatial query like this?

Re: Can someone give me some code about spatial query like this?