当然也可以后端直接上色气象栅格tif,通过geoserver等软件发布地理服务简单叠加: 尤其令人兴奋的时,在即将发布的PostGIS3.2版本,竟然有直接支持生成等值线ST_Contour,效果如下图: ST_Contour 综述,当使用PostGIS Raster后,使用一种栅格格式(GeoTiff),同时支持业务的穿透查询,矢量栅格混合空间查询,服务端渲染可视化,客户端...
SELECT contour_id, generate_series(1, st_numpoints(geom)) AS npoint, (ST_DumpPoints(geom)).geom AS geom FROM simplified ), -- Get the numeric values for X an Y of the current point coords AS ( SELECT *, st_x(geom)::numeric AS cx, st_y(geom)::numeric AS cy FROM points ORDER ...
SELECT contour_id, generate_series(1, st_numpoints(geom)) AS npoint, (ST_DumpPoints(geom)).geom AS geom FROM simplified ), -- Get the numeric values for X an Y of the current point coords AS ( SELECT *, st_x(geom)::numeric AS cx, st_y(geom)::numeric AS cy FROM points ORDER ...
properties 而contour_n2260630的表结构 看不出来两张表的srid有何不同。。一个是0一个是3734 查询srid也查询不到。。 PostGIS的SRID更新方法:https://blog.csdn.net/weixin_39540651/article/details/104051937 postgis 查询 srid:https://blog.csdn.net/young520lamb/article/details/99487270...
2019-12-02 15:20 −常见函数:http://postgis.net/docs/reference.html ST_GeometryType(geometry) —— 返回几何图形的类型 ST_NDims(geometry... 西门夜说 0 1908 ArcEngine内置工具条 2019-12-25 17:40 −CommandsEnvironment定义命令环境。 Controls3DAnalystContourTool【3D分析轮廓工具】通过查询的点生成...