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 catalogclass 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 locationstatic 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 rastersCreateUnmanagedRasterCatalog();//Open raster catalogIRasterWorkspaceEx rasterWorkspaceEx = (IRasterWorkspaceEx)OpenRasterPGDBWorkspace(tempPGDBPath);IRasterCatalog rasterCatalog = rasterWorkspaceEx.OpenRasterCatalog(tempRasterCatalog);//Mosaic rasters in the raster catalogMosaic(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() callaoInit.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 directoryCreatePersonalGDB 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 GDBCreateRasterCatalog 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 catalogWorkspaceToRasterCatalog 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 datasetIMosaicRaster mosaicRaster = new MosaicRasterClass();mosaicRaster.RasterCatalog = rasterCatalog;//Set mosaicking options, you may not need to set these for your datamosaicRaster.MosaicColormapMode = rstMosaicColormapMode.MM_MATCH;mosaicRaster.MosaicOperatorType = rstMosaicOperatorType.MT_LAST;//Open output workspaceIWorkspaceFactory 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);}}
}

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

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