Zoom to Point...

GISAdmin1

Is this still the method to zoom to a point using the ESRI Javascript API?

 var PointExtent = new esri.geometry.Extent();
 PointExtent.xmin = selectedAddress.geometry.x - .001;
 PointExtent.ymin = selectedAddress.geometry.y - .001;
 PointExtent.xmax = selectedAddress.geometry.x + .001;
 PointExtent.ymax = selectedAddress.geometry.y + .001;
 map.setExtent(PointExtent);

Or, is there a new method?

Thanks in advance,

M

derekswingley1

Another option is to calculate a new extent from the map's current extent and use that to zoom. It's similar to the original code that was posted in this thread but instead of using a hard coded value, the value used to pad the point is calculated on the fly. Something like this:

var tolerance = 5,
    pxWidth = map.extent.getWidth() / map.width,
    padding = tolerance * pxWidth,
    newExtent = new esri.geometry.Extent({
      'xmin': evt.mapPoint.x - padding,
      'ymin': evt.mapPoint.y - padding,
      'xmax': evt.mapPoint.x + padding,
      'ymax': evt.mapPoint.y + padding,
      'spatialReference': evt.mapPoint.spatialReference
    });
map.setExtent(newExtent);