Re: [Geoserver-users] GeoServer Single Image Graphic Label Issues

SourceForge Headquarters 225 Broadway Suite 1600 San Diego, CA 92101 +1 (858) 454-5900

Hi,
is your map tiled? It seems to be your icon is pretty large, and if it
crosses the tile borders,
it simply won't be displayed as there is no guarantee the other half of it
will be painted
in the nearby tile because of conflict resolution.

If you don't care about conflict resolution, you can turn it off and allow
partial labels (a
feature appeared in 2.6.x I believe):
http://docs.geoserver.org/latest/en/user/styling/sld-reference/labeling.html#conflictresolution
http://docs.geoserver.org/latest/en/user/styling/sld-reference/labeling.html#partials

Cheers
Andrea

On Tue, Mar 24, 2015 at 10:30 PM, maw269 <ma...@gm...> wrote:

> I have GS 2.6.0. I have an SLD where I am trying to label  bunch of weather
> conditions throughout 700 cities. I like how GS does not allow labels to
> conflict, but things are not working well. When I first open my OpenLayers
> 3
> Map, the graphic label (icons) show nicely:
>
> <http://osgeo-org.1560.x6.nabble.com/file/n5195263/mapIcons.png>
>
> You can see all the black dots that don't have the graphic label.
> When I zoom in one level, the graphics are still there.
> When I zoom in one more level, and all subsequent levels, all the graphic
> labels disappear:
>
> <http://osgeo-org.1560.x6.nabble.com/file/n5195263/mapNoIcons.png>
>
> I am using OpenLayers 3.0 and requesting a single image like this:
>
>                 var openWeatherMap = new ol.layer.Image({
>                         visible: false,
>                         refresh: true,
>                         extent: mapExtent,
>                         source: new ol.source.ImageWMS({
>                                 'crossOrigin':'anonymous',
>                                 url: '
> https://myserver.com/geoserver-2.6.0/myworkspace/wms',
>                                 params: {'LAYERS':
> 'feed_open_weather_map'},
>                                 serverType: 'geoserver'
>                         })
>                 });
>
> I've tried a million combinations of OL3 and SLD options. Some work better
> than other, but I can't ever get the graphic labels to appear beyond the
> zoom I mentioned.
> My SLD looks like this:
>
> <?xml version="1.0" encoding="UTF-8"?>
> <sld:StyledLayerDescriptor version="1.0.0"
>   xsi:schemaLocation="http://www.opengis.net/sld
> StyledLayerDescriptor.xsd"
>   xmlns="http://www.opengis.net/sld"
>   xmlns:ogc="http://www.opengis.net/ogc"
>   xmlns:xlink="http://www.w3.org/1999/xlink"
>   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>   xmlns:sld="http://www.opengis.net/sld">
>   <sld:UserLayer>
>     <sld:LayerFeatureConstraints>
>       <sld:FeatureTypeConstraint/>
>     </sld:LayerFeatureConstraints>
>     <sld:UserStyle>
>       <sld:Name>OWM Icons</sld:Name>
>       <sld:FeatureTypeStyle>
>         <sld:Rule>
>           <sld:Name>OWM Icons</sld:Name>
>           <sld:Title>OWM Icons</sld:Title>
>           <ogc:Filter>
>             <ogc:PropertyIsEqualTo>
>               <ogc:PropertyName>active_internal</ogc:PropertyName>
>               <ogc:Literal>true</ogc:Literal>
>             </ogc:PropertyIsEqualTo>
>           </ogc:Filter>
>                 <PointSymbolizer>
>                         <Graphic>
>                                 <Mark>
>
> <WellKnownName>circle</WellKnownName>
>                                         <Fill>
>                                                 <CssParameter
> name="fill">#000000</CssParameter>
>                                         </Fill>
>                                 </Mark>
>                                 <Opacity>
>                                 0.1
>                                 </Opacity>
>                                 <Size>1</Size>
>                         </Graphic>
>                 </PointSymbolizer>
>        <TextSymbolizer>
>          <Label>
>
>          </Label>
>          <LabelPlacement>
>            <PointPlacement>
>              <AnchorPoint>
>                <AnchorPointX>0.5</AnchorPointX>
>                <AnchorPointY>0.5</AnchorPointY>
>              </AnchorPoint>
>              <Displacement>
>                <DisplacementX>0</DisplacementX>
>                <DisplacementY>0</DisplacementY>
>              </Displacement>
>            </PointPlacement>
>          </LabelPlacement>
>          <Fill>
>            <CssParameter name="fill">#000000</CssParameter>
>          </Fill>
>             <sld:Graphic>
>               <sld:ExternalGraphic>
>                 <sld:OnlineResource xlink:type="simple"
>
> xlink:href="http://openweathermap.org/img/w/${icon}.png"/>
>                 <sld:Format>image/png</sld:Format>
>               </sld:ExternalGraphic>
>               <sld:Size>50</sld:Size>
>             </sld:Graphic>
>        </TextSymbolizer>
>         </sld:Rule>
>       </sld:FeatureTypeStyle>
>     </sld:UserStyle>
>   </sld:UserLayer>
> </sld:StyledLayerDescriptor>
>
>
>
> --
> View this message in context:
> http://osgeo-org.1560.x6.nabble.com/GeoServer-Single-Image-Graphic-Label-Issues-tp5195263.html
> Sent from the GeoServer - User mailing list archive at Nabble.com.
>
>
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-- 
==
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==

Ing. Andrea Aime
@geowolf
Technical Lead

GeoSolutions S.A.S.
Via Poggio alle Viti 1187
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Italy
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