ArcObject10.1 :ILasDataset.Export 方法内存泄露

/// <summary>

/// Esri导出点云包装方法

/// </summary>

/// <param name="lasdLayer">需要进行操作的点云图层</param>

/// <param name="geometry">作为约束的几何对象</param>

/// <param name="lasSavePath">点云保存路径</param>

/// <param name="overwrite">是否覆盖文件</param>

/// <returns>True-导出成功，False-导出失败</returns>

public static bool ExportLasFromAE(ILasDatasetLayer lasdLayer, IGeometry geometry, string lasSavePath, bool overwrite)

{

    using (ESRI.ArcGIS.ADF.ComReleaser pComReleaser = new ESRI.ArcGIS.ADF.ComReleaser())

    {

        ILasDataset pLasDataset = lasdLayer.Dataset;

        ITrackCancel pCancel = null;

        ILasFilter pLasFilter = new LasFilterClass();

        pComReleaser.ManageLifetime(pLasFilter);

        pLasFilter.AreaOfInterest = geometry;

        ISpatialReference pSpatialReference = lasdLayer.Dataset.SpatialReference;



        // 判断文件路径是否存在

        string pFileDirectory = System.IO.Path.GetDirectoryName(lasSavePath);

        string pFileName = System.IO.Path.GetFileNameWithoutExtension(lasSavePath);

        string pFileExtensionName = System.IO.Path.GetExtension(lasSavePath);

        //IEnvelope pGeometryEnvelop = geometry.Envelope;

        IRelationalOperator pRelationalOperator = geometry as IRelationalOperator;

        for (int i = 0; i < pLasDataset.FileCount; i++)

        {

            ILasFile pLasFile = pLasDataset.get_File(i);

            IEnvelope pLasFileEnvelope = pLasFile.Extent;

            if (pRelationalOperator.Disjoint(pLasFileEnvelope))

            {

                continue;

            }

            int pFileIndex = i;

            string pFilePath = string.Format("{0}//{1}_{2}{3}", pFileDirectory, pFileName, i.ToString(), pFileExtensionName);



            if (File.Exists(pFilePath))

            {

                if (overwrite)

                {

                    File.Delete(pFilePath);

                }

                else

                {

                    continue;

                }

            }

            pLasDataset.Export(pCancel, pFileIndex, pLasFilter, pFilePath, pSpatialReference, false, false);

        }

    }

    return true;

}