ArcEngine打开数据源（FeatureClass）

1、打开GDB
FileGDBWorkspaceFactory fileGDBWorkspaceFactory = new FileGDBWorkspaceFactory();
IWorkspace workspace = fileGDBWorkspaceFactory.OpenFromFile(“GDB路径”, 0);
IFeatureWorkspace featureWorkspace = workspace as IFeatureWorkspace;
IFeatureClass featureClass = featureWorkspace.OpenFeatureClass(“GDB中要素类名字”);

2、打开mdb
AccessWorkspaceFactory accessWorkspaceFactory = new AccessWorkspaceFactoryClass();
IFeatureWorkspace featureWorkspace = (IFeatureWorkspace)accessWorkspaceFactory.OpenFromFile(“MDB路径”, 0);
IFeatureClass featureClass = featureWorkspace.OpenFeatureClass(“MDB中要素类名字”);

3、打开shapefile
IWorkspaceFactory workspaceFactory = new ShapefileWorkspaceFactoryClass();
IWorkspace workspace = workspaceFactory.OpenFromFile(“shp路径”, 0);
IFeatureWorkspace featureWorkspace = workspace as IFeatureWorkspace;
IFeatureClass featureClass = featureWorkspace.OpenFeatureClass(“shp名字”);
 

4打开raster 影像

            string rasterPath = System.IO.Path.GetDirectoryName(rasterFulPath);
            string rasterFileName = System.IO.Path.GetFileName(rasterFulPath);
            IWorkspaceFactory rasterWorkspaceFactory = new RasterWorkspaceFactoryClass();
            IRasterWorkspace rasterWorkspace = (IRasterWorkspace)rasterWorkspaceFactory.OpenFromFile(rasterPath, 0);
            IRasterDataset rasterDataset = rasterWorkspace.OpenRasterDataset(rasterFileName);
            IRasterLayer rasterLayer = new RasterLayerClass();
            rasterLayer.CreateFromDataset(rasterDataset);

//影像去黑边

            IRasterRGBRenderer2 rasterRGBRen = new RasterRGBRendererClass();
            IRasterStretchColorRampRenderer pRasterStretchRenderer = new RasterStretchColorRampRendererClass();

            if (rasterLayer.Renderer is IRasterRGBRenderer2)
            {
                IRasterRenderer pRasterRendererRGB = (IRasterRenderer)rasterRGBRen;
                IRasterStretch2 rasterStretchType = (IRasterStretch2)rasterRGBRen;

                rasterStretchType.Background = true;
                rasterStretchType.BackgroundValue = 0;
                pRasterRendererRGB = (IRasterRenderer)rasterRGBRen;
                pRasterRendererRGB.Update();
                IRasterProps pRstProps = rasterLayer.Raster as IRasterProps;
                pRstProps.NoDataValue = 0;
                rasterLayer.Renderer = pRasterRendererRGB;
            }
            else if (rasterLayer.Renderer is IRasterStretchColorRampRenderer)
            {
                IRasterRenderer pRasterRendererStretch = (IRasterRenderer)pRasterStretchRenderer;
                IRasterStretch2 rasterStretchType = (IRasterStretch2)pRasterStretchRenderer;

                rasterStretchType.Background = true;
                rasterStretchType.BackgroundValue = 0;
                pRasterRendererStretch = (IRasterRenderer)pRasterStretchRenderer;
                pRasterRendererStretch.Update();
                IRasterProps pRstProps = rasterLayer.Raster as IRasterProps;
                pRstProps.NoDataValue = 0;
                rasterLayer.Renderer = pRasterRendererStretch;
            }

注：对workspace验证是否存在
if (fileGDBWorkspaceFactory.IsWorkspace(GDBPath) == false)
            {
                msg = “GDB文件不正确，不能打开！”;
                return msg;
            }

转自：http://blog.csdn.net/hellolib/article/details/7861806

转载自：https://blog.csdn.net/u013751758/article/details/73199982