Op 8/25/2011 1:51 PM, Eric Lemoine schreef:
On Thu, Aug 25, 2011 at 12:41 PM, Steven M. Ottens<ste...@minst.net> wrote:
Hi all,
I'm trying to initialise a vector layer directly with features eg:
var params = { features: new OpenLayers.Geometry.Point(5,52) };
layer = new OpenLayers.Layer.Vector('name', params);
However, the Vector class initialises with an empty features array and
overrides my passed in features array, see line 267:
http://trac.osgeo.org/openlayers/browser/trunk/openlayers/lib/OpenLayers/Layer/Vector.js#L267
The API docs suggest it is possible to pass in features, although doesn't
explicitly say so (
http://dev.openlayers.org/apidocs/files/OpenLayers/Layer/Vector-js.html#OpenLayers.Layer.Vector.features
)
Is this a bug or a feature?
If it is a feature what is the preferred way to initialise a vector layer
with a feature? Or should I first initialise the vector layer and then use
addFeature()?
Hi Steven
Currently addFeatures is the only way. But I agree it'd be good to be
able to pass features to the constructor.
Hi Eric,
Thanks for the response, I did a quick hack to get it working;
Replacing
this.features = [];
with
if (this.features) {
var features = this.features;
this.features = [];
this.addFeatures(features);
}
else {
this.features = [];
}
does the trick, however you need to pass in a rather complex thing to
get this working:
var params = { features: new OpenLayers.Feature.Vector(new
OpenLayers.Geometry.Point(x,y))}
Also it is not very elegant codewise. Still it would be convenient if
you can initialise a vector layer with features. Food for thought for OL3 ;)
Steven
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