[OpenLayers-Users] Vector layer: overlapping data

[Tim Schaub]

Daniel Degasperi wrote:
> Hi,
> I have a Vector Layer with Linestrings, which can also overlapp and I've 
> applied a SelectFeature Control (with hover effect) to this Vector Layer.
> My question is, is it possible to bring the current selected feature on 
> top of all features?

See http://trac.openlayers.org/ticket/1066 for the change that made this 
the expected behavior (not to bring selected features to the top).

We could provide an option to change this behavior.

Alternatively, you should be able to give your vector layer a style map 
with different styles for the "default" and "select" rendering intents. 
  Using a graphicZIndex property in your symbolizers, you could have 
selected features rendered above unselected features.

The graphicZIndex property is poorly named.  It looks to me like it 
should apply to any symbolizer - not just a symbolizer that uses an 
external graphic.  I'll confirm this and open a ticket about adding 
support for a more appropriately named "zIndex" property on symbolizers.

Relevant examples:

Using graphicZIndex
http://openlayers.org/dev/examples/marker-shadow.html

Using a StyleMap with multiple render intents
http://openlayers.org/dev/examples/stylemap.html

Tim

> 
> Best regards,
> Daniel
> 


-- 
Tim Schaub
OpenGeo - http://opengeo.org
Expert service straight from the developers.