using ExportMap.db;
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using ExportMap.Models;
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using System;
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using System.Collections.Generic;
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using System.Data;
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using System.Diagnostics;
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using System.IO;
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using System.Linq;
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using System.Web;
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namespace ExportMap.cs
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{
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public class XYZUtils
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{
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private static string pyFile;
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/// <summary>
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/// 获取Python文件
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/// </summary>
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public static string PyFile
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{
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get
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{
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if (string.IsNullOrWhiteSpace(pyFile))
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{
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pyFile = Path.Combine(ExportUtil.SourcesPath, "xyz2.py");
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}
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return pyFile;
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}
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}
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/// <summary>
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/// QGIS工程
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/// </summary>
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public static string Qgz
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{
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get
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{
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//return Path.Combine(ExportUtil.SourcesPath, "xyz.qgz");
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return "xyz.qgz";
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}
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}
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/// <summary>
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/// bat路径
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/// </summary>
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public static string BatPath
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{
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get
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{
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return @"C:\Program Files\QGIS 3.16\bin\";
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}
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}
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/// <summary>
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/// 基础bat文件
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/// </summary>
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public static string BaseBat
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{
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get
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{
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// python-qgis-ltr.bat，qgis_process-qgis-ltr.bat
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return @"C:\Program Files\QGIS 3.16\bin\qgis_process-qgis-ltr.bat";
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}
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}
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/// <summary>
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/// 获取发布地址：http://localhost/ExportMap/tile0/{z}/{x}/{y}.png?path=2d\tiles\0102
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/// </summary>
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public static string GetReleaseUrl(string dircode)
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{
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//return "http://{host}/LFData/2d/tiles/" + dircode + "/{z}/{x}/{y}.png";
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return "{host}/ExportMap/tile0/{z}/{x}/{y}.png?path=2d/tiles/" + dircode;
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}
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/// <summary>
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/// 生成
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/// </summary>
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/// <param name="args">XYZ参数</param>
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/// <param name="err">错误信息</param>
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/// <returns>数据发布ID集合</returns>
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public static List<int> Generate(XYZArgs args, ref string err)
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{
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List<SysMeta> list = SelectMetas(args.ids, "and type in ('tif', 'tiff', 'img', 'png', 'jpg')");
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if (null == list || list.Count == 0) return null;
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string dateStr = ExportUtil.DateStr;
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//string batFile = Path.Combine(BatPath, dateStr + ".bat");
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string txtFile = Path.Combine(Tools.TempDir, ExportUtil.DateStr + ".txt");
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string xyzPath = Path.Combine(SGUtils.LFData, "2d\\tiles", args.dircode);
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//if (args.isNew && Directory.Exists(xyzPath)) Tools.DelPath(xyzPath); // 已存在的，删除
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if (!Directory.Exists(xyzPath)) Directory.CreateDirectory(xyzPath);
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int pubid = PubDBHelper.GetPushlishId(args.dircode, "DOM");
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List<int> mids = PubDBHelper.GetPublishMetaId(pubid);
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WriteText(txtFile, list, mids);
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string cmd = string.Format("python \"{0}\" -qgz {1} -file \"{2}\" -out \"{3}\" -min {4} -max {5} -noData {6}", PyFile, Qgz, txtFile, xyzPath, args.min, args.max, args.noData);
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SysTask task = TaskDBHelper.CreateTask(args, "DOM", "影像数据(DOM)");
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err = Tools.ExecCmd(task, cmd, true);
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//if (File.Exists(batFile)) File.Delete(batFile);
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if (File.Exists(txtFile)) File.Delete(txtFile);
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List<int> ids = new List<int>();
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string viewFile = Path.Combine(xyzPath, "view.html");
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if (File.Exists(viewFile))
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{
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string path = "2d\\tiles" + "\\" + args.dircode;
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pubid = InsertToDB(list, args, path);
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if (pubid > 0) ids.Add(pubid);
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}
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return ids;
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}
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/// <summary>
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/// 查询元数据
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/// </summary>
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public static List<SysMeta> SelectMetas(List<int> ids, string types = "")
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{
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string sql = string.Format("select a.*, fn_get_fullname(dircode, 2) dirname from lf.sys_meta a where id in ({0}) {1} order by id desc", string.Join(",", ids), types);
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DataTable dt = Tools.DBHelper.GetDataTable(sql);
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List<SysMeta> list = ModelHandler.FillModel<SysMeta>(dt);
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return list;
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}
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/// <summary>
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/// 根据ID查询元数据
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/// </summary>
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public static SysMeta SelectMeta(int id)
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{
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string sql = string.Format("select a.*, fn_get_fullname(dircode, 2) dirname from lf.sys_meta a where id = {0}", id);
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DataTable dt = Tools.DBHelper.GetDataTable(sql);
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List<SysMeta> list = ModelHandler.FillModel<SysMeta>(dt);
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return null == list || list.Count == 0 ? null : list[0];
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}
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/// <summary>
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/// 写文本文件
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/// </summary>
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private static void WriteText(string file, List<SysMeta> list, List<int> mids)
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{
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string uploadFolder = Tools.GetSetting("uploadFolder");
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List<string> files = new List<string>();
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foreach (SysMeta meta in list)
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{
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string filePath = Path.Combine(uploadFolder, meta.path);
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if (!File.Exists(filePath)) continue;
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bool exists = mids.Contains(meta.id);
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files.Add(string.Format("{0},{1}", filePath, exists ? 1 : 0));
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}
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//files.Add(@"E:\01.Data\33.DOM\2.大庆DOM\5154.50-415.50.tif");
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//files.Add(@"E:\01.Data\33.DOM\2.大庆DOM\5154.50-416.00.tif");
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string str = string.Join("\r\n", files);
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File.WriteAllText(file, str);
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}
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/// <summary>
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/// 插入数据库
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/// </summary>
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private static int InsertToDB(List<SysMeta> metas, XYZArgs args, string path)
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{
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//if (PubDBHelper.IsPublish(args.dircode, "DOM")) return 1;
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int pubid = PubDBHelper.GetPushlishId(args.dircode, "DOM");
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if (pubid > 0) // 更新发布
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{
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List<int> ids = PubDBHelper.GetPublishMetaId(pubid);
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foreach (SysMeta m in metas)
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{
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if (!ids.Contains(m.id)) PubDBHelper.InsertMetaPub(m.id, pubid, args.userId);
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}
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string geom = GetPointZ(args);
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PubDBHelper.UpdatePublish(pubid, args.name, args.userId, geom);
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return pubid;
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}
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SysMeta meta = metas[0];
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meta.type = "DOM";
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meta.name = args.name;
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meta.dircode = args.dircode;
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SysPublish sys = Tools.NewPublish(meta, args, GetReleaseUrl(args.dircode), path);
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sys.geom = GetPointZ(args);
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pubid = PubDBHelper.InsertPublish(sys);
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if (pubid > 0)
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{
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sys.id = pubid;
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PubDBHelper.InsertLayer(sys, new SysMeta()
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{
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name = args.name,
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type = meta.type,
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dirname = meta.dirname
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});
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foreach (SysMeta m in metas)
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{
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PubDBHelper.InsertMetaPub(m.id, pubid, args.userId);
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}
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}
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return pubid;
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}
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/// <summary>
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/// 获取中心点
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/// </summary>
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private static string GetPointZ(XYZArgs args)
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{
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string viewFile = Path.Combine(SGUtils.LFData, "2d\\tiles", args.dircode, "view.html");
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if (!File.Exists(viewFile)) return null;
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string str = File.ReadAllText(viewFile);
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int start = str.IndexOf(".setView([") + ".setView([".Length;
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int end = str.IndexOf(");", start);
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string coords = str.Substring(start, end - start).Replace("]", "").Replace(" ", "");
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string[] strs = coords.Split(new char[] { ',' });
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return string.Format("ST_GeomFromText('POINT Z ({0} {1} {2})')", strs[0], strs[1], strs[2]);
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}
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}
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}
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