AE 点选(转)

直接上代码：

IPoint pPoint;
pPoint=new PointClass();
pPoint.PutCoords (e.mapX,e.mapY);

ITopologicalOperator pTopologicalOperator;//构建新的拓扑几何要素
pTopologicalOperator=new PointClass();
pTopologicalOperator = pPoint as ITopologicalOperator;

IGeometry pGeometry;
pGeometry= pTopologicalOperator.Buffer(200);//buffer可设置缓冲

axMapControl1.FlashShape(pGeometry ,1,300,null);

ISpatialFilter pSpatialFilter;
pSpatialFilter=new SpatialFilterClass();
pSpatialFilter.Geometry=pGeometry;
pSpatialFilter.GeometryField="SHAPE";
pSpatialFilter.SpatialRel=esriSpatialRelEnum.esriSpatialRelContains;

IMap pMap;
pMap=axMapControl1.Map;

IFeatureLayer pFeatureLayer;
pFeatureLayer=pMap.get_Layer(0) as IFeatureLayer;

IFeatureCursor pFeatureCursor;
pFeatureCursor=new FeatureCursorClass();
pFeatureCursor=pFeatureLayer.Search(pSpatialFilter,false);

IFeature pFeature;
pFeature=pFeatureCursor.NextFeature();
while (pFeature !=null)
{
axMapControl1.FlashShape(pFeature.Shape,1,300,null);
pFeature=pFeatureCursor.NextFeature();
}

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