OpenLayers添加几何对象
就为了这个小问题我把baidu、google都翻遍了，最终还是在OpenLayers自带的Api doc中找到了解决办法。
废话少说，分三步来完成：1.创建Geometry对象；2.创建Feture对象。3.把Feture对象添加到Layer中。
example：
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><html xmlns="http://www.w3.org/1999/xhtml"><head> <title></title> <meta content="text/html; charset=utf-8" http-equiv="Content-Type" />
<style type="text/css">
#map
{
border-right: black 1px solid; border-top: black 1px solid; border-left: black 1px solid; width: 512px; border-bottom: black 1px solid; height: 512px;
}
</style> <script src="OpenLayers/OpenLayers.js" type="text/javascript"></script> <script type="text/javascript"> var map; function init() { map = new OpenLayers.Map('map'); //初始化背景图层 var baseLayer = new OpenLayers.Layer.WMS("China","http://127.0.0.1:8080/geoserver/wms?",{layers:'topp:bou2_4p'}); //创建矢量图层 var vectorLayer = new OpenLayers.Layer.Vector("vector"); //创建Geometry对象 var point = new OpenLayers.Geometry.Point(115,32); //创建Feature对象 var fea = new OpenLayers.Feature.Vector(point); //把Feature对象添加到图层 vectorLayer.addFeatures(fea); map.addLayers([baseLayer,vectorLayer]); map.setCenter(new OpenLayers.LonLat(115,32),3); } </script> <meta name="GENERATOR" content="MSHTML 6.00.6001.17184" /></head><body onload="init()"> <div id="map"> </div></body></html>知道了添加点的方法，添加其他图形就容易了。
posted on 2008-03-28 15:36 David.net 阅读(1471) 评论(6) 编辑 收藏 举报
