public WebApiResult <string> IndexToRGB(IndexToRGBRequest Request) { var log = new TaskLogEntity() { GUID = Request.GUID, Name = "索引图转RGB图", Type = "VRT", Description = "BuildVRTByTile", Status = "进行中", Parameter = JsonHelper.ToJson(Request) }; //操作日志 new Log <IndexToRGBRequest>(log); try { //遍历文件夹,获取瓦片地图地址信息 DirectoryInfo TheFolder = new DirectoryInfo(Request.path); //DirectoryInfo[] folder_list = TheFolder.GetDirectories(); FileInfo[] file_list = GetFileList(TheFolder, "*.png"); //如果瓦片地图为索引色图片,则将其转换为RGB图像 for (int i = 0; i < file_list.Length; i++) { Bitmap mtile = (Bitmap)Bitmap.FromFile(file_list[i].FullName); //如果原图片是索引像素格式之列的,则需要转换 if (IsPixelFormatIndexed(mtile.PixelFormat) || mtile.PixelFormat == PixelFormat.Format32bppArgb) { using (Bitmap bmp = new Bitmap(mtile.Width, mtile.Height, PixelFormat.Format32bppArgb)) { using (Graphics g = Graphics.FromImage(bmp)) { g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic; g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality; g.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality; g.DrawImage(mtile, 0, 0); } mtile = (Bitmap)bmp.Clone(); } } String savedir = "E" + file_list[i].DirectoryName.Substring(1); if (!Directory.Exists(savedir)) { Directory.CreateDirectory(savedir); } String savepath = "E" + file_list[i].FullName.Substring(0, file_list[i].FullName.LastIndexOf(".") + 1).Substring(1) + "jpg"; if (File.Exists(savepath)) { File.Delete(savepath); } mtile.Save(savepath, ImageFormat.Jpeg); } log.Status = "已完成"; log.CompleteTime = DateTime.Now.ToString(); //操作日志 new Log <IndexToRGBRequest>(log); } catch (Exception ex) { log.Status = "错误"; log.ErrorMsg = ex.ToString(); log.ErrorDate = DateTime.Now.ToString(); new Log <IndexToRGBRequest>(log); } return(null); }
/// <summary> /// 索引图转RGB图,生存VRT时需要读取瓦片地图RBG图层信息 /// </summary> /// <param name="request"></param> /// <returns></returns> public WebApiResult <string> Any(IndexToRGBRequest request) { BuildVRTService service = new BuildVRTService(); return(service.IndexToRGB(request)); }