本文主要包括以下内容
- TileMill生成Tile影像金字塔(.mbtiles压缩文件)
- Mbutil(https://github.com/mapbox/mbutil)解压缩
- Apache HTTP Server(或tomcat) 建立web瓦片服务
- 客户端调用( http://www.arcgis.com/home)测试
首先将数据导入postgres数据库中
osm2pgsql -s -d simple -U postgres -H localhost -S default.style E:SzgcSj2016osmosis-latestinWuhan.pbf --prefix wuhan -W
SELECT osm_id,edge_id, (dp).path[1] As
index, ST_AsText((dp).geom) As wktnode from
(
select osm_id,row_number() over() as
edge_id,ST_DumpPoints(way) as dp from
wuhan_roads limit 100)x
//将geometry的空间参考改为4326(因为默认为900913)
ALTER TABLE wuhan_roads ALTER
COLUMN way TYPE
geometry(LineString,4326) USING
ST_Transform(way,4326);
ALTER TABLE wuhan_line ALTER
COLUMN way TYPE
geometry(LineString,4326) USING
ST_Transform(way,4326);
ALTER TABLE wuhan_point ALTER
COLUMN way TYPE geometry(Point,4326)
USING ST_Transform(way,4326);
//给表格wuhan_polygon添加属性way2 geometry
ALTER TABLE wuhan_polygon ADD COLUMN way2
geometry;
//给表格wuhan_polygon的属性way2 geometry添加格式:(way,4326)
update wuhan_polygon SET way2=ST_Transform(way,4326);
//删除表格wuhan_polygon的属性way
ALTER TABLE wuhan_polygon DROP COLUMN way;
//给表格wuhan_polygon的属性way2改民为way
ALTER TABLE wuhan_polygon RENAME way2 TO way;
TileMill配置postgres数据连结
- 新建项目
- 添加图层
- 设置工程的默认渲染方式
- 样式配置
- 条件性样式
- 工具提示
- 图例
- 输出地图
连接后根据ID写样式配置
#wuhanpolygon {
::outline {
line-color: #3c22d6;
line-width: 2;
line-join: round;
}
polygon-fill: #03b6ad;
}
host=localhost port=5432 user=postgres password=root dbname=simple
#wuhanroads {
::outline {
line-color: #3c22d6;
line-width: 2;
line-join: round;
}
polygon-fill: #03b6ad;
}
#wuhanpoint {
marker-width:6;
marker-fill:#8b9091; //f45
marker-line-color:#813;
marker-allow-overlap:true;
}
然后导出mbtils文件,用python或者QGis安装插件解压即可,所得即瓦片地图,把文件夹放在tomact中root文件夹下即可访问
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在tomcat中webapp下导入geoserver,启动geoserver,连接postgres,分别发布wuhan_roads,wuhan_point,wuhan_line,wuhan_polygen等表,可以在浏览器中查看效果如下: