C#、AE开发入门之打开TIFF文件并显示

继上篇文章，本次打开TIFF文件，附上源码及其注释

　　　　　private void button2_Click(object sender, EventArgs e)
        {
            axMapControl1.ClearLayers();
            if (tiffPath == "")
                return;

            int Index = tiffPath.LastIndexOf("\\");
            string fileName = tiffPath.Substring(Index+1);
            string filePath = tiffPath.Substring(0, Index);

            IWorkspaceFactory pWorkspaceFactory = new RasterWorkspaceFactoryClass();//利用工厂对象去生成一个raster文件的工作空间
            IRasterWorkspace pRasterWorkspace = (IRasterWorkspace)pWorkspaceFactory.OpenFromFile(filePath, 0);//到指定路径下
            IRasterDataset pRasterDataset = (IRasterDataset)pRasterWorkspace.OpenRasterDataset(fileName);//利用要素集去接收对应的raster文件

            IRasterLayer pRasterLayer = new RasterLayerClass();//生成一个矢量图层对象
            pRasterLayer.CreateFromDataset(pRasterDataset);//利用矢量图层对象去创建对应的raster文件
            axMapControl1.Map.AddLayer(pRasterLayer);//添加对应的图层
            axMapControl1.ActiveView.Refresh();
        }