我的開發(fā)環(huán)境為ArcGIS Engine 10.2與Visual studio2010，主地圖名稱為axMapControl1，如果變動則需要修改（注意相關(guān)事件的添加與動態(tài)鏈接庫的引入）。

• 效果預(yù)覽

實(shí)現(xiàn)代碼

• 引用類庫

using ESRI.ArcGIS.esriSystem;
using ESRI.ArcGIS.Carto;
using ESRI.ArcGIS.Controls;
using ESRI.ArcGIS.ADF;
using ESRI.ArcGIS.SystemUI;
using ESRI.ArcGIS.GeoAnalyst;
using ESRI.ArcGIS.Geodatabase;
using ESRI.ArcGIS.DataSourcesRaster;
using ESRI.ArcGIS.DataSourcesGDB;
using ESRI.ArcGIS.SpatialAnalyst;
using ESRI.ArcGIS.Geometry;

• 代碼實(shí)現(xiàn)

private void 影像裁剪ToolStripMenuItem_Click(object sender, EventArgs e)
{
    if (axMapControl1.get_Layer(0) is IFeatureLayer && axMapControl1.get_Layer(1) is IRasterLayer)
    {
        IFeatureLayer pFeatureLayer = axMapControl1.get_Layer(0) as IFeatureLayer;//輸入裁剪矢量圖層
        IRasterLayer pRasterLayer = axMapControl1.get_Layer(1) as IRasterLayer;//輸入裁剪柵格圖層
        IPolygon pPoly = pFeatureLayer.FeatureClass.GetFeature(0).Shape as IPolygon;//設(shè)置裁剪要素
        rasterClip(pRasterLayer, pPoly, "rasterClip0");//調(diào)用裁剪方法
        //強(qiáng)提醒，完成裁剪
        MessageBox.Show("裁剪完成！");
    }
}

/// <summary>
/// 掩膜處理
/// </summary>
/// <param name="pRasterLayer">輸入裁剪柵格圖層</param>
/// <param name="clipGeo">輸入裁剪矢量要素</param>
/// <param name="FileName">輸出文件名稱</param>
public void rasterClip(IRasterLayer pRasterLayer, IPolygon clipGeo, string FileName)
{
    IRaster pRaster = pRasterLayer.Raster;//獲取柵格文件
    IRasterProps pProps = pRaster as IRasterProps;
    object cellSizeProvider = pProps.MeanCellSize().X;
    IGeoDataset pInputDataset = pRaster as IGeoDataset;
    IExtractionOp pExtractionOp = new RasterExtractionOp() as IExtractionOp;
    IRasterAnalysisEnvironment pRasterAnaEnvir = pExtractionOp as IRasterAnalysisEnvironment;
    pRasterAnaEnvir.SetCellSize(esriRasterEnvSettingEnum.esriRasterEnvValue, ref cellSizeProvider);
    object extentProvider = clipGeo.Envelope;//獲取矢量圖形范圍
    object snapRasterData = Type.Missing;
    pRasterAnaEnvir.SetExtent(esriRasterEnvSettingEnum.esriRasterEnvValue, ref extentProvider, ref snapRasterData);
    IGeoDataset pOutputDataset = pExtractionOp.Polygon(pInputDataset, clipGeo as IPolygon, true);
    IRaster clipRaster;  //裁切后得到的IRaster
    if (pOutputDataset is IRasterLayer)
    {
        IRasterLayer rasterLayer = pOutputDataset as IRasterLayer;
        clipRaster = rasterLayer.Raster;
    }
    else if (pOutputDataset is IRasterDataset)
    {
        IRasterDataset rasterDataset = pOutputDataset as IRasterDataset;
        clipRaster = rasterDataset.CreateDefaultRaster();
    }
    else if (pOutputDataset is IRaster)
    {
        clipRaster = pOutputDataset as IRaster;
    }
    else
    {
        return;
    }
    //保存裁切后得到的clipRaster,直接保存為tif影像文件
    IWorkspaceFactory pWKSF = new RasterWorkspaceFactory();
    //保存裁剪后的影像到本地路徑下
    string filepath = @"c:\dat\";
    
    //判斷文件夾是否存在，如果不存在新建文件夾
    if (false == System.IO.Directory.Exists(filepath))
    {
        //創(chuàng)建文件夾
        Directory.CreateDirectory(filepath);
    }
    IWorkspace pWorkspace = pWKSF.OpenFromFile(filepath, 0);
    ISaveAs pSaveAs = clipRaster as ISaveAs;
     //輸出要素類的名稱，文件后綴可以設(shè)置
    pSaveAs.SaveAs(FileName ".tif", pWorkspace, "TIFF");
}

• 導(dǎo)出圖像格式