[OpenLayers-Users] Layer.GML.features.length

[Tim Schaub]

Jeff Dege wrote:
> I'm creating a GML layer from a GML file.
> 
> I want the map to zoom to the smallest box bounding all the features in
> the GML file.
> 
> What I've tried is:
> 

...

> 		
> 	var minx = 999999;
> 	var miny = 999999;
> 	var maxx = -999999;
> 	var maxy = -999999;
> 		

As an aside, 999999 may look like a big number, but it isn't always. 
Better to use Number.POSITIVE_INFINITY and Number.NEGATIVE_INFINITY here.

...

> 
> Seems to me the best hook, for dealing with these sorts of issues, might
> be a doneInsertingFeatures() callback.  Added after the end of the loop
> in Layer\Vector.js.
> 

I agree, I think layers that load data asynchronously should call a 
doneLoading callback that you can define in the layer options.

I'd suggest making a ticket if nobody else has a better workaround.

Tim