DotSpatial_创建Spatialite空间数据库
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//坐标系 EPSG码 //xian 1980 3 Degree GK CM 123 2386 //xian 1980 3 Degree GK CM 126 2387 //xian 1980 3 Degree GK CM 129 2388 //xian 1980 3 Degree GK CM 132 2389 //xian 1980 3 Degree GK CM 135 2390 //xian 1980 3 Degree GK Zone 41 2365 //xian 1980 3 Degree GK Zone 42 2366 //xian 1980 3 Degree GK Zone 43 2367 //xian 1980 3 Degree GK Zone 44 2368 //xian 1980 3 Degree GK Zone 45 2369 //xian 1980 GK CM 123 2346 //xian 1980 GK CM 129 2347 //xian 1980 GK CM 135 2348 //xian 1980 GK Zone 21 2335 //xian 1980 GK Zone 22 2336 //xian 1980 GK Zone 23 2337 //CGCS2000 3 Degree GK CM 123 4550 //CGCS2000 3 Degree GK CM 126 4551 //CGCS2000 3 Degree GK CM 129 4552 //CGCS2000 3 Degree GK CM 132 4553 //CGCS2000 3 Degree GK CM 135 4554 //CGCS2000 3 Degree GK Zone 41 4529 //CGCS2000 3 Degree GK Zone 42 4530 //CGCS2000 3 Degree GK Zone 43 4531 //CGCS2000 3 Degree GK Zone 44 4532 //CGCS2000 3 Degree GK Zone 45 4533 //CGCS2000 GK CM 123 4510 //CGCS2000 GK CM 126 4511 //CGCS2000 GK CM 129 4512 //CGCS2000 GK Zone 21 4499 //CGCS2000 GK Zone 22 4500 //CGCS2000 GK Zone 23 4501 //创建Spatialite数据库库 private void toolStripButtonCreateSpatialiteDB_Click(object sender, EventArgs e) { string dbFile = Application.StartupPath + "\Data\Test.sqlite"; string dbConnStr = "Data Source=" + dbFile; //创建库 //SQLiteConnection.CreateFile(dbFile); //增加图层 string msg = ""; //创建表 using (SQLiteConnection conn = new SQLiteConnection(dbConnStr)) { conn.Open(); using (SQLiteCommand cmd = conn.CreateCommand()) { string sql = ""; conn.LoadExtension("mod_spatialite.dll"); //sql = "SELECT load_extension(‘mod_spatialite.dll‘);"; sql = "select InitSpatialMetaData()"; cmd.CommandText = sql; cmd.ExecuteNonQuery(); #region 创建点层 sql = "CREATE TABLE Dian (PK_UID INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,name TEXT NOT NULL,meas_value DOUBLE NOT NULL)"; cmd.CommandText = sql; try { cmd.ExecuteNonQuery(); } catch(Exception exc) { } //bRet = ExecuteSql(sql, conn); /* 添加图形列 */ sql = "SELECT AddGeometryColumn(‘Dian‘, ‘GEOMETRY‘,2346, ‘POINT‘, ‘XY‘)"; //2346 为EPSG码 cmd.CommandText = sql; cmd.ExecuteNonQuery(); /* 添加空间索引 */ sql = "SELECT CreateSpatialIndex(‘Dian‘, ‘GEOMETRY‘)"; cmd.CommandText = sql; cmd.ExecuteNonQuery(); /* 通过OGC标准的WTK 文件描述格式插入一个点记录*/ sql = "INSERT INTO Dian(PK_UID, name, meas_value, GEOMETRY) VALUES (1, ‘first point‘, 1.23456,GeomFromText(‘POINT(636000 5209340)‘,2346))"; cmd.CommandText = sql; cmd.ExecuteNonQuery(); /* 通过OGC标准的WTK 文件描述格式插入一个点记录*/ sql = "INSERT INTO Dian(GEOMETRY, meas_value, name, PK_UID) VALUES (GeomFromText(‘POINT(636100 5209340)‘,2346),11.123456789, ‘eleventh point‘, 2)"; cmd.CommandText = sql; cmd.ExecuteNonQuery(); #endregion #region 创建线层 sql = "CREATE TABLE Xian (PK_UID INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,name TEXT NOT NULL,meas_value DOUBLE NOT NULL)"; cmd.CommandText = sql; try { cmd.ExecuteNonQuery(); } catch (Exception exc) { } //bRet = ExecuteSql(sql, conn); /* 添加图形列 */ sql = "SELECT AddGeometryColumn(‘Xian‘, ‘GEOMETRY‘,2346, ‘LINESTRING‘, 2)"; //2346 为EPSG码 cmd.CommandText = sql; cmd.ExecuteNonQuery(); /* 添加空间索引 */ sql = "SELECT CreateSpatialIndex(‘Xian‘, ‘GEOMETRY‘)"; cmd.CommandText = sql; cmd.ExecuteNonQuery(); /* 通过OGC标准的WTK 文件描述格式插入一个点记录*/ sql = "INSERT INTO Xian(PK_UID, name, meas_value, GEOMETRY) VALUES (1, ‘line1‘, 1.23456,GeomFromText(‘LINESTRING(636000 5209340,633950 5212200,634400 5207800)‘,2346))"; cmd.CommandText = sql; cmd.ExecuteNonQuery(); /* 通过OGC标准的WTK 文件描述格式插入一个点记录*/ //sql = "INSERT INTO Xian(GEOMETRY, meas_value, name, PK_UID) VALUES (GeomFromText(‘POINT(636100 5209340)‘,2346),11.123456789, ‘eleventh point‘, 2)"; //cmd.CommandText = sql; //cmd.ExecuteNonQuery(); #endregion #region 创建面层 sql = "CREATE TABLE Mian (PK_UID INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,name TEXT NOT NULL,meas_value DOUBLE NOT NULL)"; cmd.CommandText = sql; try { cmd.ExecuteNonQuery(); } catch (Exception exc) { } //bRet = ExecuteSql(sql, conn); /* 添加图形列 */ sql = "SELECT AddGeometryColumn(‘Mian‘, ‘GEOMETRY‘,2346, ‘POLYGON‘, 2)"; //2346 为EPSG码 cmd.CommandText = sql; cmd.ExecuteNonQuery(); /* 添加空间索引 */ sql = "SELECT CreateSpatialIndex(‘Mian‘, ‘GEOMETRY‘)"; cmd.CommandText = sql; cmd.ExecuteNonQuery(); /* 通过OGC标准的WTK 文件描述格式插入一个点记录*/ sql = "INSERT INTO Mian(PK_UID, name, meas_value, GEOMETRY) VALUES (1, ‘Poly1‘, 1.23456,GeomFromText(‘POLYGON((636000 5209340,633950 5212200,634400 5207800,632409 5209760,636000 5209340))‘,2346))"; cmd.CommandText = sql; cmd.ExecuteNonQuery(); /* 通过OGC标准的WTK 文件描述格式插入一个点记录*/ //sql = "INSERT INTO Xian(GEOMETRY, meas_value, name, PK_UID) VALUES (GeomFromText(‘POINT(636100 5209340)‘,2346),11.123456789, ‘eleventh point‘, 2)"; //cmd.CommandText = sql; //cmd.ExecuteNonQuery(); #endregion } } //打开或创建Spatialite数据库 //DotSpatial.Plugins.SpatiaLite.SpatiaLiteHelper spatialiteHelper = DotSpatial.Plugins.SpatiaLite.SpatiaLiteHelper.Open(dbConnStr, out msg); //SpatiaLiteHelper.SetEnvironmentVars(); //List<string> listTableNames = spatialiteHelper.GetTableNames(); //foreach (string tableName in listTableNames) //{ // MessageBox.Show(tableName); //} //IFeatureSet fs = spatialiteHelper.ReadFeatureSet("t"); //mapMain.Layers.Add(fs); //sql = "insert into TableName values(2, 0, MakePoint(-111.879206, 226.255935, 4326))"; }
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