topic Zoom to Feature @ Load in ArcGIS JavaScript Maps SDK Questions

Zoom to Feature @ Load

JamesLangille — Wed, 19 Jan 2011 22:49:57 GMT

I'd like to set the startExtent to the envelop of a feature that is based on a passed in parameter. I can't figure this out, maybe I'm just not thinking.

Re: Zoom to Feature @ Load

MartenLiebster — Sat, 11 Dec 2021 06:08:00 GMT

I'd like to set the startExtent to the envelop of a feature that is based on a passed in parameter. I can't figure this out, maybe I'm just not thinking.

Would need to know more about your application's architecture to give a complete answer.

But in my case, to build the extent I'm taking my initial point and then "zooming out" a bit.

var featureExtent = new esri.geometry.Extent(
    {
        "ymin": eval($("#Lat").val()) - 0.0025,
        "xmin": eval($("#Lon").val()) - 0.0025,
        "ymax": eval($("#Lat").val()) + 0.0025,
        "xmax": eval($("#Lon").val()) + 0.0025,
        "spatialReference": { "wkid": 4326 }
    });

myMap = new esri.Map("mapDiv", { extent: featureExtent });

I'm using jQuery and hidden fields, but you could make the extent a parameter and use that.

Re: Zoom to Feature @ Load

HemingZhu — Fri, 21 Jan 2011 16:41:51 GMT

I'd like to set the startExtent to the envelop of a feature that is based on a passed in parameter. I can't figure this out, maybe I'm just not thinking.

map.setExtent(feature.geometry.getExtent().expand(1.5));