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13693261870

2023-05-06 0fcf91aad599189ea996362ed3fe3952c043f1ea

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using ExportMap.Models;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Web;
 
namespace ExportMap.cs
{
    public class TerraUtils
    {
        private static string pyFile;
 
        /// <summary>
        /// 获取Python文件
        /// </summary>
        public static string PyFile
        {
            get
            {
                if (string.IsNullOrWhiteSpace(pyFile))
                {
                    pyFile = Path.Combine(ExportUtil.SourcesPath, "merge.py");
                }
 
                return pyFile;
            }
        }
 
        /// <summary>
        /// QGIS工程
        /// </summary>
        public static string Qgz
        {
            get
            {
                //return Path.Combine(ExportUtil.SourcesPath, "xyz.qgz");
                return "xyz.qgz";
            }
        }
 
        /// <summary>
        /// bat路径
        /// </summary>
        public static string BatPath
        {
            get
            {
                return @"C:\Program Files\QGIS 3.16\bin\";
            }
        }
 
        /// <summary>
        /// 基础bat文件
        /// </summary>
        public static string BaseBat
        {
            get
            {
                // python-qgis-ltr.bat，qgis_process-qgis-ltr.bat
                return @"C:\Program Files\QGIS 3.16\bin\qgis_process-qgis-ltr.bat";
            }
        }
 
        /// <summary>
        /// 获取发布地址
        /// </summary>
        public static string GetReleaseUrl(string dircode)
        {
            return "http://{host}/LFData/3d/terrain/" + dircode;
        }
 
        /// <summary>
        /// 生成
        /// </summary>
        /// <param name="args">XYZ参数</param>
        /// <param name="err">错误信息</param>
        /// <returns>数据发布ID集合</returns>
        public static List<int> Generate(XYZArgs args, ref string err)
        {
            string tifFile = Merge(args, ref err);
 
 
            return null;
        }
 
        /// <summary>
        /// 合并
        /// </summary>
        public static string Merge(XYZArgs args, ref string err)
        {
            string txtFile = null;
            try
            {
                List<SysMeta> list = XYZUtils.SelectMetas(args.ids, "and type in ('tif', 'tiff')");
                if (null == list || list.Count == 0) return null;
 
                txtFile = Path.Combine(Tools.TempDir, ExportUtil.DateStr + ".txt");
                string dirPath = Path.Combine(SGUtils.LFData, "3d\\terrain", args.dircode);
                if (!Directory.Exists(dirPath)) Directory.CreateDirectory(dirPath);
 
                string tifFile = Path.Combine(dirPath, dirPath + ".tif");
                if (File.Exists(tifFile)) File.Delete(tifFile);
 
                WriteText(txtFile, list);
 
                string cmd = string.Format("python \"{0}\" -qgz {1} -file \"{2}\" -out \"{3}\"", PyFile, Qgz, txtFile, tifFile);
                err = Tools.ExecCmd(cmd, true);
 
                return tifFile;
            }
            catch (Exception ex)
            {
                err = ex.Message;
                return null;
            }
            finally
            {
                if (!string.IsNullOrEmpty(txtFile) && File.Exists(txtFile))
                {
                    File.Delete(txtFile);
                }
            }
        }
 
        /// <summary>
        /// 写文本文件
        /// </summary>
        private static void WriteText(string txtFile, List<SysMeta> list)
        {
            string uploadFolder = Tools.GetSetting("uploadFolder");
 
            List<string> files = new List<string>();
            foreach (SysMeta meta in list)
            {
                string filePath = Path.Combine(uploadFolder, meta.path);
                if (File.Exists(filePath)) files.Add(filePath);
            }
            string str = string.Join("\n", files);
 
            File.WriteAllText(txtFile, str);
        }
    }
}