二三维立体空间联动之MapControl与SceneControl的联动

二三维联动之MapControl与SceneControl的联动

针对ArcEngine项目需要，开始由JAVA转向C#开发，最近狂乱的google加baidu，再加上esrichina做升级，搜索出来的内容全部无法进入他的论坛查看，还好有baidu快照，帮了我很大的忙，再说esrichina论坛，提问比回答的人多。就一个二三维联动，不知道有多少贴子，VB的，C++的，C#的很少。没有一个好的贴子能直接解决我的问题，郁闷之极，最主要是那个论坛分权限，刚注册的用户想看牛人的博客还进不去，我是ArcEngine+C#的新手，我的项目很急，但是面对这样的论坛我很悲剧。决定将我花按天去google和baidu所找出的答案在这里记下来，同时也供和我一样的新手学习学习。

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多的话说了没用，看代码如下:

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1.导入shp文件到MapControl，按个button 同步到SceneControl中

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        //加载shp文件到MapControl中        private void btnItem9_1_SHP_Click(object sender, EventArgs e)        {            OpenFileDialog openFileDialog1 = new OpenFileDialog();            openFileDialog1.CheckFileExists = true;            openFileDialog1.CheckFileExists = true;            openFileDialog1.Multiselect = true;            openFileDialog1.Filter = "shape files(*.shp)|*.shp";            openFileDialog1.Title = "请选择shp格式文件";            if (openFileDialog1.ShowDialog() == DialogResult.OK)            {                foreach (string fname in openFileDialog1.FileNames)                {                    if (fname != null)                    {                        string pathToWorkspace = System.IO.Path.GetDirectoryName(fname);                        string shapefileName = System.IO.Path.GetFileNameWithoutExtension(fname);                        axMapControl1.AddShapeFile(pathToWorkspace, shapefileName);                    }                }            }            IActiveView pActiveView = (IActiveView)axMapControl1.Map;            pActiveView.Refresh();        }

?OK，接下来是同步的方法:

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       //重新同步MapControl中的所有图层到SceneControl        private void synLayersToSceneControl()        {            if (axMapControl1.ActiveView != null)            {                if (axMapControl1.Map.LayerCount > 0)                {                    axSceneControl1.Scene.ClearLayers();                    UID uid = new UIDClass();                    uid.Value = "{6CA416B1-E160-11D2-9F4E-00C04F6BC78E}";   //所有图层                    axSceneControl1.Scene.AddLayers(axMapControl1.Map.get_Layers(uid, true), true);                }            }            axSceneControl1.SceneGraph.RefreshViewers();        }

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2.点击一个button，让二维和三维一起放大，即同步放大

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        //同步放大        private void btnItem9_5_ZoomInFixed_Click(object sender, EventArgs e)        {            //得到接口            IActiveView pActiveView = this.axMapControl1.Map as IActiveView;            //获得显示范围            IEnvelope pEnvelope = (IEnvelope)pActiveView.Extent;            //刷新            pEnvelope.Expand(0.9, 0.9, true);            pActiveView.Extent = pEnvelope;            pActiveView.Refresh();            //三维            //获得现场的相机            ICamera pCamera = this.axSceneControl1.Camera as ICamera;            //拓宽视野            double dAngle;            dAngle = pCamera.ViewFieldAngle;            pCamera.ViewFieldAngle = dAngle * 0.9;            //重绘现场            ISceneViewer pSceneViewer = this.axSceneControl1.SceneGraph.ActiveViewer as ISceneViewer;            pSceneViewer.Redraw(false);        }

今天搞定基本的同步，继续研究去....