Question about how to handle Vector layers in GXP

[Ivan Willig]

Hey,

I need to add a new OpenLayers.Layer.Vector layer to my geoexplorer
map. As a first pass I tried to simply add my layer via the
OpenLayers.Map object. How, I need to hide this layer in the Layer
Tree and the path to doing this was not very clear.

I started digging deeper and it seems like the correct way is to go
through the GXP Source Interface.

https://github.com/opengeo/gxp/blob/master/src/script/plugins/LayerSource.js

Are there examples of the correct of handling this? Should I just
subclass LayerSource with something like VectorSource and from there?

Thanks.

--
Ivan Willig
OpenGeo - http://opengeo.org

[Bart van den Eijnden]

Ivan,

please check out this code:

https://github.com/opengeo/gxp/blob/master/src/script/plugins/FeatureManager.js#L384:L401

it's all you should need to do. No need to go through a source at all.

displayInLayerSwitcher: false takes care of hiding it from the tree.

For raising the layer to the top see:

https://github.com/opengeo/gxp/blob/master/src/script/plugins/FeatureManager.js#L539:L542

https://github.com/opengeo/gxp/blob/master/src/script/plugins/FeatureManager.js#L568:L576

Best regards,

Bart

-- 
Bart van den Eijnden
OpenGeo - http://opengeo.org
Expert service straight from the developers.

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[Ivan Willig]

Lovely thanks Bart.

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[Ivan Willig]

From the docs it seems like this only really works the WFS Protocol,

https://github.com/opengeo/gxp/blob/master/src/script/plugins/FeatureManager.js#L712-L752

And it does not seem trivial to rip that part out.

Thoughts on this?

[Bart van den Eijnden]

The FeatureManager depends on WFS.

I'm not saying you should use the FeatureManager, I am only pointing you to relevant bits of code as inspiration for what you want to do.

Getting the FeatureManager to work with a different protocol is likely a non- trivial task.

Bart

Sent from my iPhone

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[Ivan Willig]

Cool,

Thats what I thought.

Thanks Bart.

On Wed, Jun 12, 2013 at 4:26 PM, Bart van den Eijnden