这是我的代码
map = new OpenLayers.Map("map");
// I tried several projections here, all lead to the same result
var proj = new OpenLayers.Projection("WGS84");
var point = new OpenLayers.LonLat(position.coords.latitude,position.coords.longitude);
point.transform(proj, map.getProjectionObject());
// the output of this shows the correct coordinates
console.log("latitude: "+position.coords.latitude+" long "+position.coords.longitude);
var mapnik = new OpenLayers.Layer.OSM();
map.addLayer(mapnik);
map.setCenter(point,3);
它始终显示以坐标(0/0)为中心的地图,它位于大西洋的某个地方。我的错误在哪里?我无法解决这个问题,在谷歌上找不到任何东西。 请帮忙。
然而,这有效。
map = new OpenLayers.Map( 'map');
layer = new OpenLayers.Layer.OSM( "Simple OSM Map");
map.addLayer(layer);
map.setCenter(
new OpenLayers.LonLat(position.coords.latitude,position.coords.longitude).transform(
new OpenLayers.Projection("EPSG:4326"),
map.getProjectionObject()
), 12
);
答案 0 :(得分:2)
如果您尝试了多个投影,并且都导致相同的结果,可能是因为Proj4js未正确加载(请参阅http://trac.osgeo.org/openlayers/wiki/Documentation/Dev/proj4js)
也请查看此示例:http://openlayers.org/dev/examples/osm.html(从EPSG重新投影:4326)