GP学习（十）-Mosaic raster datasets to a file raster format

<span style="color: rgb(255, 0, 0); font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 12.48px; line-height: 17.472px;"><strong>声明：仅做自己学习整理用，内容拷贝自ArcEngine SDK开发文档</strong></span>

// Copyright 2010 ESRI// // All rights reserved under the copyright laws of the United States// and applicable international laws, treaties, and conventions.// // You may freely redistribute and use this sample code, with or// without modification, provided you include the original copyright// notice and use restrictions.// // See the use restrictions.// using System;using Microsoft.Win32;using ESRI.ArcGIS.esriSystem;using ESRI.ArcGIS.DataSourcesRaster;using ESRI.ArcGIS.Geodatabase;using ESRI.ArcGIS.DataManagementTools;using ESRI.ArcGIS.Geoprocessor;using ESRI.ArcGIS.Geoprocessing;using ESRI.ArcGIS.DataSourcesGDB;namespace CreateFileRasterMosaic{    //Sample creating a file raster mosaic from rasters in a folder and its subfolders    //Steps:    //  1. Create an unmanaged PGDB raster catalog    //  2. Load rasters in the input folder and its subfolders to the new raster catalog    //  3. Create a mosaic file raster dataset from the unmanaged raster catalog    class CreateFileRasterMosaic    {        //Local variables for data path        //The TEMP directory will be used to create temporary raster catalog and output raster dataset        //Remove temp.mdb in TEMP directory if it exists        //You can substitute the paths with your data location        static string inputFolder = @"C:\data";        static string outputFolder = @"C:\Temp";        static string outputName = "mosaic.tif";        static string tempRasterCatalog = "temp_rc";        static string tempPGDB = "temp.mdb";        static string tempPGDBPath = outputFolder + "\\" + tempPGDB;        static string tempRasterCatalogPath = tempPGDBPath + "\\" + tempRasterCatalog;        static void Main(string[] args)        {            ESRI.ArcGIS.esriSystem.AoInitialize aoInit = null;            try            {                ESRI.ArcGIS.RuntimeManager.Bind(ESRI.ArcGIS.ProductCode.Desktop);                aoInit = new AoInitializeClass();                esriLicenseStatus licStatus = aoInit.Initialize(esriLicenseProductCode.esriLicenseProductCodeArcView);                Console.WriteLine("License Checkout successful.");            }            catch (Exception exc)            {                // If it fails at this point, shutdown the test and ignore any subsequent errors.                Console.WriteLine(exc.Message);            }            try            {                //Create temporary unmanaged raster catalog and load all rasters                CreateUnmanagedRasterCatalog();                //Open raster catalog                IRasterWorkspaceEx rasterWorkspaceEx = (IRasterWorkspaceEx)OpenRasterPGDBWorkspace(tempPGDBPath);                IRasterCatalog rasterCatalog = rasterWorkspaceEx.OpenRasterCatalog(tempRasterCatalog);                //Mosaic rasters in the raster catalog                Mosaic(rasterCatalog);            }            catch (Exception exc)            {                Console.WriteLine(exc.Message);            }            Console.Write("Please press any key to close the application.");            Console.ReadKey();            //Do not make any call to ArcObjects after ShutDown() call            aoInit.Shutdown();        }        static void CreateUnmanagedRasterCatalog()        {            try            {                //Use geoprocessing to create the geodatabase, the raster catalog, and load our directory                //to the raster catalog.                Geoprocessor geoprocessor = new Geoprocessor();                //Create personal GDB in the TEMP directory                CreatePersonalGDB createPersonalGDB = new CreatePersonalGDB();                createPersonalGDB.out_folder_path = outputFolder;                createPersonalGDB.out_name = tempPGDB;                geoprocessor.Execute(createPersonalGDB, null);                //Create an unmanaged raster catalog in the newly created personal GDB                CreateRasterCatalog createRasterCatalog = new CreateRasterCatalog();                createRasterCatalog.out_path = tempPGDBPath;                createRasterCatalog.out_name = tempRasterCatalog;                createRasterCatalog.raster_management_type = "unmanaged";                geoprocessor.Execute(createRasterCatalog, null);                //Load data into the unmanaged raster catalog                WorkspaceToRasterCatalog wsToRasterCatalog = new WorkspaceToRasterCatalog();                wsToRasterCatalog.in_raster_catalog = tempRasterCatalogPath;                wsToRasterCatalog.in_workspace = inputFolder;                wsToRasterCatalog.include_subdirectories = "INCLUDE_SUBDIRECTORIES";                geoprocessor.Execute(wsToRasterCatalog, null);            }            catch (Exception exc)            {                Console.WriteLine(exc.Message);            }        }        static void Mosaic(IRasterCatalog rasterCatalog)        {            try            {                //Mosaics all rasters in the raster catalog to an output raster dataset                IMosaicRaster mosaicRaster = new MosaicRasterClass();                mosaicRaster.RasterCatalog = rasterCatalog;                //Set mosaicking options, you may not need to set these for your data                mosaicRaster.MosaicColormapMode = rstMosaicColormapMode.MM_MATCH;                mosaicRaster.MosaicOperatorType = rstMosaicOperatorType.MT_LAST;                //Open output workspace                IWorkspaceFactory workspaceFactory = new RasterWorkspaceFactoryClass();                IWorkspace workspace = workspaceFactory.OpenFromFile(outputFolder, 0);                //Save out to a target raster dataset                //It can be saved to TIFF, IMG, GRID, BMP, GIF, JPEG2000, JPEG, Geodatabase, ect.                ISaveAs saveas = (ISaveAs)mosaicRaster;                saveas.SaveAs(outputName, workspace, "TIFF");            }            catch (Exception exc)            {                Console.WriteLine(exc.Message);            }        }        static IWorkspace OpenRasterPGDBWorkspace(string connStr)        {            Type t = Type.GetTypeFromProgID("esriDataSourcesGDB.AccessWorkspaceFactory");            System.Object obj = Activator.CreateInstance(t);            IWorkspaceFactory2 workspaceFactory = obj as IWorkspaceFactory2;            return workspaceFactory.OpenFromFile(connStr, 0);        }    }}