ArcGIS Engine移动图层顺序

来源：互联网发布：系统集成软件有哪些编辑：程序博客网时间：2024/04/16 23:25

要在TOC控件中移动顺序，其实就是这二个操作，选择要移动的图层；拖动要放置的位置，但是这两个操作牵扯到三个函数，分别是mousedown，mounsemove，mounseup。而在这三个操作里面牵扯一个重要的方法HitTest这里只做了对图层的移动，其它的没有考虑，现在直接上代码：

//保存选择的图层
        public ILayer pSeletLayer = null;
        public IBasicMap pBasicMap = null;
        System.Object pOther = new object();
        System.Object pIndex = new object();

        private void axTOCControl1_OnMouseDown(object sender, ITOCControlEvents_OnMouseDownEvent e)
        {
            ILayer pLayer = null;
            ////////////////////////////////////////////////////////////////////////////////
            ////////////////////////////////////////////////////////////////////////////////
            //鼠标左击操作,对层的选择
            if (e.button == 1)
            {
                this.axTOCControl1.HitTest(e.x, e.y, ref pItem, ref pBasicMap, ref pLayer, ref pOther, ref pIndex);
                if (pItem == esriTOCControlItem.esriTOCControlItemLayer)
                {
                    pSeletLayer = pLayer;
                    this.axTOCControl1.SelectItem(pLayer, null);
                }

//刷新SelectLayer控件

            }
            ////////////////////////////////////////////////////////////////////////////////
            ////////////////////////////////////////////////////////////////////////////////
            //鼠标右击操作
            if (e.button == 2)
            {
                this.axTOCControl1.HitTest(e.x, e.y, ref pItem, ref pBasicMap, ref pLayer, ref pOther, ref pIndex);
                /////////////////////////////////////////////////////////////////////////////
                //显示右击事件窗口
                if (pItem == esriTOCControlItem.esriTOCControlItemLayer)
                {
                    pSeletLayer = pLayer;
                    this.axTOCControl1.SelectItem(pLayer, null);

if (pLayer is IFeatureLayer)
{

                        this.pContextMenuStrip.Show(this.axTOCControl1, new System.Drawing.Point(e.x, e.y));
                    }
                }
                else if (pItem == esriTOCControlItem.esriTOCControlItemMap)
                {
                    this.pMapMenu.Show(this.axTOCControl1, new System.Drawing.Point(e.x, e.y));
                }

            }
        }
        private void axTOCControl1_OnMouseMove(object sender, ITOCControlEvents_OnMouseMoveEvent e)
        {
            IBasicMap pTemBasicMap = null;
            System.Object pTemOther = new object();
            System.Object pTemIndex = new object();

esriTOCControlItem pTemItem = new esriTOCControlItem(); //选择的TOC的项目名

ILayer pLayer = null;

            if (e.button == 1)
            {
                this.axTOCControl1.HitTest(e.x, e.y, ref pTemItem, ref pTemBasicMap, ref pLayer, ref pTemOther, ref pTemIndex);

                if (pTemItem != esriTOCControlItem.esriTOCControlItemNone)
                {

                    axTOCControl1.MousePointer = esriControlsMousePointer.esriPointerCustom;
                }
                //刷新SelectLayer控件

}
}

        private void axTOCControl1_OnMouseUp(object sender, ITOCControlEvents_OnMouseUpEvent e)
        {

         IBasicMap pTemBasicMap = null;
         System.Object pTemOther = new object();
         System.Object pTemIndex = new object();

esriTOCControlItem pTemItem = new esriTOCControlItem(); //选择的TOC的项目名

            ILayer pLayer = null;

            //鼠标左击操作,对层的选择
            if (e.button == 1)
            {
                this.axTOCControl1.HitTest(e.x, e.y, ref pTemItem, ref pTemBasicMap, ref pLayer, ref pTemOther, ref pTemIndex);
                if (pItem == esriTOCControlItem.esriTOCControlItemLayer)
                {
                    if (pSeletLayer != pLayer && pLayer!=null)
                    {
                        this.axTOCControl1.SelectItem(pLayer, null);

this.globe.Globe.GlobeDisplay.Scene.MoveLayer(pSeletLayer, CommonHelper.GetIndexByLayer(this.globe.Globe, pLayer));

this.globe.Globe.GlobeDisplay.RefreshViewers();
this.axTOCControl1.Refresh();

                        this.axTOCControl1.SelectItem(pSeletLayer, null);
                    }

                }

}

其中GetIndexByLayer 方法是用来获取图层对象的索引值，代码如下：

public static int GetIndexByLayer(IGlobe _pGlobe,ILayer _pLayer)
        {
            IScene pScene = _pGlobe.GlobeDisplay.Scene;
            int pIndex = 0;

            for (int i = 0; i < pScene.LayerCount; i++)
            {
                if (pScene.get_Layer(i).Name == _pLayer.Name)
                {
                    pIndex = i;
                    return pIndex;
                }

}

return pIndex;
}