The GeoServer preview defaults to 'single tile' mode, where openlayers
requests a new tile the size of the map everytime you move. If you use the
little menu button in the top corner of the map you'll get some other
options including one to switch to tiled mode.
Some clients (OpenLayers at least) default to tiling even from dynamic WMS
services so possibly you are using tiles without realizing it.
--
David Winslow
OpenGeo - http://opengeo.org/
On Mon, Nov 7, 2011 at 9:00 AM, Bram van Rooij <[email protected]>wrote:
> **
>
> Edward,
>
> I'm not using a tiled map service. So that can't be it.
>
> How do you label your polygon based on your centerpoint? Because that
> would be fine for now (at least an improvement to what I have now).
> But I thought Geoserver would do that automatically. Well, maybe not the
> centerpoint, but only one label per polygon. And the same for lines.
> Weird thing is that the layer preview of geoserver doesn't duplicate the
> labels. That's what really puzzles me...
>
> I will look into the spacearound option (the other ones I checked out
> already, but didn't help).
>
> If I can't get a solution, I will convert my lines and polygons to points
> and add these to geoserver as separate layers. And use this to label the
> original data. But as far as datamanagement goes, this is not a very
> attractive solution...
>
> Regards
> Bram
>
>
>
>
> -----Oorspronkelijk bericht-----
> Van: Edward Mac Gillavry
> [mailto:[email protected]<[email protected]>
> ]
> Verzonden: ma 07/11/2011 11:45
> Aan: Bram van Rooij; [email protected]
> Onderwerp: RE: [Geoserver-users] labels are occuring more than once
>
>
>
> Bram,
>
> Just wondering whether you are using a tiled map service to incorporate
> the map in your website? If a polygon or line crosses multiple tiles, the
> label is drawn on both tiles.
>
> Also, what's the nature of your data? In order to label polygons, I
> typically determine a center point for the polygon in PostGIS that I later
> use to label the polygons. In this way, there's only one point that's
> labeled.
>
> For lines, check out the parameters
>
> <VendorOption name="spaceAround">
> <VendorOption name="labelAllGroup">
> <VendorOption name="repeat">
>
> to adjust the repetition of labels and avoid collisions.
>
> Regards,
>
> Edward
>
>
> Date: Mon, 7 Nov 2011 09:21:10 +0100
> From: [email protected]
> To: [email protected]
> Subject: [Geoserver-users] labels are occuring more than once
>
>
>
>
>
> Hi, I'm running into a problem I cannot solve. I want to display labels of
> my features (polygons, lines and points) when zoomed in. In the
> documentation I see that normally every feature will be labeled once. But
> when I zoom in, most of my polygons and lines display the label more than
> once. The further I zoom in, the more labels it displays (of the same
> polygon or line).The preview of geoserver is doing it correctly, but when I
> load my features on my site it goes wrong.What am I doing wrong? Here's my
> SLD code of the label, maybe there's something in there
> <FeatureTypeStyle>
>
> <Rule>
> <Name>Label</Name>
> <MaxScaleDenominator>10000</MaxScaleDenominator>
> <TextSymbolizer>
> <Label>
> <PropertyName xmlns="http://www.opengis.net/ogc
> ">code</PropertyName>
> </Label>
> <LabelPlacement>
> <PointPlacement>
> <AnchorPoint>
> <AnchorPointX>0</AnchorPointX>
> <AnchorPointY>0</AnchorPointY>
> </AnchorPoint>
> </PointPlacement>
> </LabelPlacement>
> <VendorOption name="group">yes</VendorOption>
> </TextSymbolizer>
> </Rule>
> </FeatureTypeStyle> Thanks! Bram
>
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>
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