闪烁功能

么？

第一种：通过FlashShape来实现闪烁功能

/// <summary> /// 定位闪烁元素 /// </summary> /// <param name="axMapControl"></param> /// <param name="pElement"></param> public void PositionFlashElement(AxMapControl axMapControl, IElement pElement) { IGeometry pGeometry = pElement.Geometry; ICartographicLineSymbol ipCartographicLineSymbol; ISimpleFillSymbol ipSimpleFillSymbol; ISimpleMarkerSymbol ipSimpleMarkersymbol; ISymbol ipSymbol = null; IRgbColor ipColor; IPoint pPoint = new PointClass(); pPoint.X = pGeometry.Envelope.LowerLeft.X + pGeometry.Envelope.Width / 2; pPoint.Y = pGeometry.Envelope.LowerLeft.Y + pGeometry.Envelope.Height / 2; axMapControl.CenterAt(pPoint); //pGeometry.Envelope.LowerLeft int Size; ipColor = new RgbColor(); ipColor.Red = 255; Size = 10; //esriGeometryType type = pGeometry.GeometryType; if (type == esriGeometryType.esriGeometryPolyline) { ipCartographicLineSymbol = new CartographicLineSymbol();

ipSymbol = (ISymbol)ipCartographicLineSymbol; ipSymbol.ROP2 = esriRasterOpCode.esriROPNotXOrPen; ipCartographicLineSymbol.Width = Size; ipCartographicLineSymbol.Color = ipColor; } else if (type == esriGeometryType.esriGeometryPolygon) { ipSimpleFillSymbol = new SimpleFillSymbol(); ipSymbol = (ISymbol)ipSimpleFillSymbol; ipSimpleFillSymbol.Color = ipColor; } else if (type == esriGeometryType.esriGeometryPoint || type == esriGeometryType.esriGeometryMultipoint) { ipSimpleMarkersymbol = new SimpleMarkerSymbol(); ipSymbol = (ISymbol)ipSimpleMarkersymbol; ipSymbol.ROP2 = esriRasterOpCode.esriROPWhite; ipSimpleMarkersymbol.Color = ipColor; ipSimpleMarkersymbol.Size = 20; } axMapControl.FlashShape(pGeometry, 3, 300, ipSymbol); }

        第二种：编辑自己闪烁的对象

自己定义一个FlashObjectsClass类来完成闪烁的功能,网上很对这样类的原代码.

    //获取对应要素

            LayerIdentifiedResult layerResult = identifiedResultsList[layerIndex];

            //点击了图层下的要素

            if (featureIndex > -1)

            {

                IFeatureIdentifyObj identifyObjDefault = layerResult.IdentifiedFeatureObjList[featureIndex];

                IFeature featureDefault = (identifyObjDefault as IRowIdentifyObject).Row as IFeature;

                //显示属性

                ShowFeatureAttributes(featureDefault);

                //判断是否闪烁要素

                if (doFlash)

                {

                    (identifyObjDefault as IIdentifyObj).Flash(associateMapControl.ActiveView.ScreenDisplay);

                }

            }

            //点击了图层，同时闪烁图层下的所有要素图形

            else

            {

                flashObjects.FlashObjects(layerResult);

            }

第三种：结合IHookActions的DoAction方法并搭上esriHookActionsFlash动作，这样做效果很接近arcmap中的效果，速度也比较快。

          Action方面有6个constant，可以根据需要选择.

Constant	Value	Description
esriHookActionsFlash	0	Flash the geometry.
esriHookActionsPan	1	Pan to the geometry.
esriHookActionsZoom	2	Zoom to the geometry.
esriHookActionsGraphic	3	Create a graphic for the geometry.
esriHookActionsLabel	4	Create a graphic and label for the geometry.
esriHookActionsCallout	5	Create a callout for the geometry.

完成闪烁的代码如下：

IHookActions hookActions;
hookActions.DoAction(feature.Shape, esriHookActions.esriHookActionsPan);

　Application.DoEvent();
hookActions.DoAction(feature.Shape,esriHookActions.esriHookActionsFlash);