How to setCenter for polylines and polygons?‏

Question

I'm using this to center my points in the map screen:

var centerPoint = new OpenLayers.LonLat(feature.geometry.x, feature.geometry.y);
map.setCenter(centerPoint);

what should I use to center polylines and polygons?

thanks in advance,

Answer 1

You can use the following:

map.setCenter(map.layers[1].getDataExtent().getCenterLonLat(),12);

This will center your map to the center of your vector layer 1, at a zoom level 12.

Answer 2

solution:

var ft = vectorLayer.features[0];
var bounds = ft.geometry.bounds;
if(zoom)
    map.zoomToExtent(bounds);
else
    map.setCenter(bounds.getCenterLonLat());