WebGIS(PostgreSQL+GeoServer+OpenLayers)之三 OpenLayers客户端数据显示

来源：互联网发布：淘宝有哪些男装潮店编辑：程序博客网时间：2024/04/18 12:36

地图数据在GeoServer中配置好之后，可以HTML代码编写OpenLayers的WMS的请求服务。编写好之后，可以在浏览器上查看地图。

地理数据在OpenLayers上显示

用到的HTML代码：

<head>

#map {

width: 800px;

height: 434px;

border: 1px solid black;

}

</style>

type="text/javascript">

function init(){

var map = new OpenLayers.Map('map', {controls:[], 'projection':

'EPSG:4326', 'units':'degrees'});

OpenLayers.IMAGE_RELOAD_ATTEMPTS = 5;

// setup tiled layer

var bounds = new OpenLayers.Bounds(70.56262702941892,

16.39964122772222,137.82589988708528,55.32298831939698)

var tiled = new OpenLayers.Layer.WMS(

"topp:china", "http://localhost:8080/geoserver/wms",

{

srs: 'EPSG:4326',

width: '800',

styles: '',

height: '434',

layers: 'topp:china',

format: 'image/png', tiled: 'true', tilesOrigin :

"70.56262702941892,16.39964122772222"

{maxExtent: bounds, maxResolution: 0.26274715960025924, projection:

"EPSG:4326", buffer: 0}

);

map.addLayer(tiled);

map.setCenter(new OpenLayers.LonLat(lon, lat), zoom);

map.addControl( new OpenLayers.Control.PanZoomBar() );

map.addControl( new OpenLayers.Control.LayerSwitcher() );

}

</script>

</head>

</body>

</html>