WMS GetFeatureInfo Template

When using a WMS client such as OpenLayers, Leaflet or MapViewer the WMS protocol support the GetFeatureInfo operation for interaction; allowing feedback when a rendered feature is clicked on. This same facility is used by Desktop GIS software when interacting with a WMS Layer.

Reference:

• Freemarker Templates
• GetFeatureInfo Templates

Template Example

Clients can request the raw feature data (as JSON, GML or CSV content) or as a text/html page which is often displayed as info panel or pop-up.

1. To produce the text/html page three templates are combined:

   • header.ftl
   • content.ftl
   • footer.ftl

2. To customize the content for the ne workspace use the web resource browser to create:

   workspaces/ne/content.ftl

   With the following content.ftl template:

   content.ftl

   <#list features as feature>
       <span style="color: #303030;font-family:ariel; font-size:14px"> ${feature.type.title}: 
           <#list feature.attributes as attribute>
               <#if attribute.name == "NAME">
                   ${attribute.value} 
                </#if>
            </#list>
      </span>
   
      <hr>
       <div style="overflow: hidden;">
       <table >
            <#list feature.attributes as attribute>
               <#if !attribute.isGeometry>
                     <tr  >     
                         <td valign=top style="padding-bottom:3px;word-wrap:break-word;max-width:100px;color:#808080;font-family:ariel; font-size:14px">${attribute.name}</td>
                         <td valign=top  style="word-wrap:break-word; max-width:300px;color:#303030;font-family:ariel; font-size:14px">${attribute.value}</td>
                     </tr>
                </#if>
            </#list>
      </table>
      </div>
   </#list>
   

3. The template uses:

   • Layer title
   • The feature label attribute (based on naming convention for the natural earth dataset).
   • List of attribute names and values

   Natural Earth GetFeature Info