arcgis二次开发鹰眼代码

以下是一个使用 ArcObjects 实现鹰眼功能的示例代码，包括创建鹰眼图层、绘制矩形框、响应交互等操作：

// 获取地图控件和地图对象
IMapControl3 mapControl = axMapControl1.Object as IMapControl3;
IMap map = mapControl.Map;

// 创建鹰眼图层
IWorkspaceFactory workspaceFactory = new ShapefileWorkspaceFactory();
IWorkspace workspace = workspaceFactory.OpenFromFile("C:\\Temp", 0);
IFeatureWorkspace featureWorkspace = workspace as IFeatureWorkspace;
IFields fields = new Fields() as IFields;
IFieldsEdit fieldsEdit = fields as IFieldsEdit;
IField shapeField = new Field() as IField;
IFieldEdit shapeFieldEdit = shapeField as IFieldEdit;
shapeFieldEdit.Name_2 = "Shape";
shapeFieldEdit.Type_2 = esriFieldType.esriFieldTypeGeometry;
IGeometryDef geometryDef = new GeometryDef() as IGeometryDef;
IGeometryDefEdit geometryDefEdit = geometryDef as IGeometryDefEdit;
geometryDefEdit.GeometryType_2 = esriGeometryType.esriGeometryEnvelope;
geometryDefEdit.SpatialReference_2 = map.SpatialReference;
shapeFieldEdit.GeometryDef_2 = geometryDef;
fieldsEdit.AddField(shapeField);
string shapefileName = "EagleEye.shp";
IFeatureClass featureClass = featureWorkspace.CreateFeatureClass(shapefileName, fields, null, null, esriFeatureType.esriFTSimple, "Shape", "");
IGraphicsLayer graphicsLayer = new GraphicsLayerClass();
graphicsLayer.Name = "Eagle Eye";
graphicsLayer.Visible = true;
IMapLayers2 mapLayers = map as IMapLayers2;
mapLayers.InsertLayer(graphicsLayer, true, 0);

// 绘制矩形框
IEnvelope envelope = mapControl.Extent;
IGraphicsContainer graphicsContainer = graphicsLayer as IGraphicsContainer;
IRectangleElement rectangleElement = new RectangleElementClass();
IElement element = rectangleElement as IElement;
element.Geometry = envelope;
IRgbColor color = new RgbColorClass();
color.Red = 255;
rectangleElement.Symbol = new SimpleFillSymbolClass() { Color = color };
graphicsContainer.AddElement(element, 0);

// 响应交互
IActiveView activeView = mapControl.ActiveView;
IViewEvents_Event viewEvents = activeView as IViewEvents_Event;
viewEvents.ItemBoundsChanged += (object Item, IEnvelope envelope) =>
{
    // 更新鹰眼矩形框位置和大小
    IElement element = graphicsContainer.get_Element(0);
    element.Geometry = envelope;
    graphicsContainer.UpdateElement(element);
};
viewEvents.AfterDraw += (IDisplay Display, esriViewDrawPhase phase) =>
{
    // 绘制鹰眼矩形框和边框
    IEnvelope extent = activeView.Extent;
    ISymbol symbol = rectangleElement.Symbol;
    symbol.Draw(Display, element.Geometry);
    color = new RgbColorClass();
    color.Red = 0;
    color.Green = 0;
    color.Blue = 0;
    symbol = new SimpleLineSymbolClass() { Color = color, Width = 1 };
    symbol.Draw(Display, extent);
};

需要注意的是，该示例代码仅供参考，具体代码实现可能需要根据具体情况进行修改。同时，该代码是基于 C# 语言的 ArcObjects 开发，需要引用相关的 ArcObjects 库。