这是我第一次使用stackoverflow并使用Openlayers和Google Maps.
我一直在浏览不同的论坛和网站,包括OpenLayers.org,以解决我的问题.我已经完成了以下组合的搜索:openlayers,谷歌地图投影和球形墨卡托...但我还没有找到解决方案.
问题:当我放大和缩小地图时,来自Web服务调用(func setDataSource)的KML数据正在移动.我的猜测是我的代码中的预测错误或错误放置.我没有关于地图投影的任何背景,因此很难在线消化绘图术语:-(.有人可以帮忙吗?
//start here
var options = {
projection: new OpenLayers.Projection("EPSG:900913"),
displayProjection: new OpenLayers.Projection("EPSG:4326"),
units: "m",
numZoomLevels: 18,
maxResolution: 156543.0339,
maxExtent: new OpenLayers.Bounds(-20037508, -20037508,
20037508, 20037508)};
//*map = new OpenLayers.Map('map');
map = new OpenLayers.Map('map', options);
var gphy = new OpenLayers.Layer.Google(
"Google Street",
{'sphericalMercator':true});
// Add the background images via WMS
var bglayer = new OpenLayers.Layer.WMS( "OpenLayers WMS",
"http://labs.metacarta.com/wms/vmap0", {layers: 'basic'}, {'reproject': true});
//map.addLayer(bglayer);
map.addLayers([gphy, bglayer]);
map.addControl(new OpenLayers.Control.LayerSwitcher());
map.zoomToMaxExtent(); //* Zoom all the way out, this command also …Run Code Online (Sandbox Code Playgroud)