AE点选、线选、框选（AE10.0+C#201…

        #region  要素选择

       

        IGeometry selectGeometry = null;

        private void pointSelect(object sender, ESRI.ArcGIS.Controls.IMapControlEvents2_OnMouseDownEvent e) //点选

        {

            IEnvelope pEnv;

            IActiveView pActiveView = axMapControl1.ActiveView;

            IMap pMap = axMapControl1.Map;

            pEnv = axMapControl1.TrackRectangle();

            if (pEnv.IsEmpty == true)

            {

                ESRI.ArcGIS.esriSystem.tagRECT r;

                r.bottom = e.y + 5;

                r.top = e.y - 5;

                r.left = e.x - 5;

                r.right = e.x + 5;

                pActiveView.ScreenDisplay.DisplayTransformation.TransformRect(pEnv, ref r, 4);

                pEnv.SpatialReference = pActiveView.FocusMap.SpatialReference;

            }

            selectGeometry = pEnv as IGeometry;

            axMapControl1.Map.SelectByShape(selectGeometry, null, false);

            axMapControl1.Refresh(esriViewDrawPhase.esriViewGeoSelection, null, null);

        }

 

        private void lineSelect()        //线选

        {

            selectGeometry = axMapControl1.TrackLine();

            axMapControl1.Map.SelectByShape(selectGeometry, null, false);

            axMapControl1.Refresh(esriViewDrawPhase.esriViewGeoSelection, null, null);

        }

 

        private void cubeSelect()        //框选

        {

            IMap pMap = axMapControl1.Map;

            IActiveView pActiveView = pMap as IActiveView;

            IEnvelope pEnv = axMapControl1.TrackRectangle();

            pMap.SelectByShape(pEnv, null, false);

            pActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeoSelection, null, null);

        }

 

        private void circleSelect()      //圆选

        {

            selectGeometry = axMapControl1.TrackCircle();

            axMapControl1.Map.SelectByShape(selectGeometry, null, false);

            axMapControl1.Refresh(esriViewDrawPhase.esriViewGeoSelection, null, null);

        }

 

        private void zoomIn()

        {

            IEnvelope pEnv = axMapControl1.TrackRectangle();

            pEnv = axMapControl1.Extent;

            pEnv.Expand(0.5, 0.5, true);

            axMapControl1.Extent = pEnv;

        }

 

        private void zoomOut()

        {

            IEnvelope pEnv = axMapControl1.TrackRectangle();

            pEnv = axMapControl1.Extent;

            pEnv.Expand(2, 2, true);

            axMapControl1.Extent = pEnv;

        }

        #endregion