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## OpenGeo Stack Workshop

# Creating a New Line SLD

Before using the Styler application a new style must be first created for the layer being styled. This section covers the task of creating a new line style SLD from scratch, reiterating over topics covered in previous modules.

1. From the Config Page navigate to Data ‣ Style ‣ New.

2. Enter “transit_routes_style” in the text field and click New.

   Creating the transit_routes_style

3. In the SLD Editor enter the following XML:

       <StyledLayerDescriptor version="1.0.0"
         xmlns="http://www.opengis.net/sld"
         xmlns:ogc="http://www.opengis.net/ogc">

         <NamedLayer>
           <Name>Transit Routes</Name>
           <UserStyle>

             <FeatureTypeStyle>
               <Rule>
                 <LineSymbolizer>
                   <Stroke/>
                 </LineSymbolizer>
               </Rule>
             </FeatureTypeStyle>

           </UserStyle>
         </NamedLayer>

       </StyledLayerDescriptor>

   Note

   The above XML snippet creates a `<LineSymbolizer>` with all the default values. This will result in a blank link 1 pixel wide.

   Creating a basic line SLD

4. Submit, Apply, and Save changes.

5. Using skills learned in the `geoserver.basics` module, modify the default style of the bay_area_transit_routes feature type to the newly created transit_routes_style.

   Changing the default style of the bay_area_transit_routes feature type

6. Use the Map Preview to preview the new style.

   Previewing the bay_area_transit_routes layer with the transit_routes_style applied

At this point a new style is in place. In the next section the Styler application will be used to modify it.

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