FeatureLayer.fullExtent is null in JS API 4.3

janjermei

Hi there, whenever I run the code :

 

layer.then(function(){

  view.extent = layer.fullExtent;

});

 

when layer is a FeatureLayer the full Extent is always null.

 

Is this a bug or a known issue ( can be tested with the sandbox example FeatureLayer)

KristianEkenes

The fullExtent of the layer is determined by the service. So someone can publish a layer containing a fullExtent or one without one. If you want to ensure you are zooming to the fullExtent of your data, you can get this on the client by doing the following:

layer<SPAN class="punctuation token">.</SPAN><SPAN class="token function">queryExtent</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN>
&nbsp; <SPAN class="punctuation token">.</SPAN><SPAN class="token function">then</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="keyword token">function</SPAN><SPAN class="punctuation token">(</SPAN>response<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">{</SPAN>
&nbsp;&nbsp;&nbsp;&nbsp; view<SPAN class="punctuation token">.</SPAN><SPAN class="token function">goTo</SPAN><SPAN class="punctuation token">(</SPAN>response<SPAN class="punctuation token">.</SPAN>extent<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
&nbsp; <SPAN class="punctuation token">}</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN><SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

That will ensure your view zooms to the extent of all features in the layer whether or not a fullExtent is present on the service.