style - Line stroke offset in Geoserver

Does anyone know how to offset a stroke in Geoserver? For example I will color the left side of the street (line feature) red and the other side (same line feature) blue. I believe I will be using 2 LineSymbolizer for this but I don't know how to offset them. Otherwise, they will just be rendered on top of each other.

Any thoughts?

Answer

DISCLAIMER: My company financed the development of this plugin

There is a wonderful (!) plugin to achive this goal, it is Fluxomajic!

We developed it to render traffic information using Geoserver.

There is not so much documentation, you can go in to the code to get more information. An utilization example:

            
    shap  
    7               
    4000         
    1              

    4             
    3              
    1              
    
       wms_crs
    
    
       wms_width
    
    

       wms_height
    
    
       wms_bbox
    
 

Put the Geometry in a element, in an SLD.