CODEWITHSUNDEEP
openlayersgeoserver
user1558407
user1558407

Reputation: 11

Displaying feature name using Openlayers and GEOServer

I am trying to display feature name in the map while loading (ex: name of the building).

How we can display this in OpenLayers by using GeoServer.

Thanks, Ashok

Upvotes: 1

Views: 1843

Answers (2)

Maxi Baez
Maxi Baez

Reputation: 578

If you are using WMS layers, try with SLD styles. But,if you are using vector layers, you must to use OpenLayers StyleMap to label your features, try this

var style = new OpenLayers.StyleMap({
    default :new OpenLayers.Style({
          'label': '${feature_attr}'
    })
})

Upvotes: 0

ajayr
ajayr

Reputation: 31

You need to define TextSymbolizer for the feature using styles in geoserver. Go to geoserver admin --> Styles --> Add a new style.

Add a TextSymblolizer as follows

<sld:NamedLayer xmlns:sld="http://www.opengis.net/sld"
    xmlns:ogc="http://www.opengis.net/ogc" xmlns:gml="http://www.opengis.net/gml">
    <sld:UserStyle>
        <sld:Name>layer_name</sld:Name>
        <sld:Title>layer_title</sld:Title>
        <sld:Abstract/>
        <sld:FeatureTypeStyle>
            <sld:FeatureTypeName>Feature</sld:FeatureTypeName>

            <sld:Rule>
                <sld:Name>rule01</sld:Name>                             
                <sld:TextSymbolizer>
                    <sld:Label>
                        <ogc:PropertyName>feature_name</ogc:PropertyName>
                    </sld:Label>
                    <sld:Font>
                      <sld:CssParameter name="font-family">Arial</sld:CssParameter>
                      <sld:CssParameter name="font-style">Normal</sld:CssParameter>
                      <sld:CssParameter name="font-size">12</sld:CssParameter>
                    </sld:Font>


                    <sld:LabelPlacement>
                        <sld:PointPlacement>
                        <sld:AnchorPoint>
                            <sld:AnchorPointX>
                                0.5
                            </sld:AnchorPointX>
                            <sld:AnchorPointY>
                                0.5
                            </sld:AnchorPointY>
                        </sld:AnchorPoint>
                        </sld:PointPlacement>
                    </sld:LabelPlacement>            
                </sld:TextSymbolizer>
            </sld:Rule>
        </sld:FeatureTypeStyle>
    </sld:UserStyle>
</sld:NamedLayer>

Within the tag define the feature whose value needs to be displayed. Next associate the given layer with this style, update and reload.

Upvotes: 0

Related Questions