You can often get away with not caching your labels, and even pulling them back in really big chunks, like 1024x1024. Probably not recommended, but highly effective. .
Best, Steve http://www.clemetparks.com/images/esig/cmp-ms-90x122.pngStephen Mather Geographic Information Systems (GIS) Manager (216) 635-3243 [email protected] <http://www.clemetparks.com/> clevelandmetroparks.com From: David Winslow [mailto:[email protected]] Sent: Monday, July 16, 2012 9:52 AM To: vrbikdan Cc: [email protected] Subject: Re: [Geoserver-users] meta tiling doesn't preserve position of labels Yes, GeoServer only takes into account the area being rendered when determining label positions, so this sort of thing is expected. You can mitigate it by using a caching server to render large areas and then use simple image cropping to generate the small tiles - we call that technique "metatiling." GeoWebCache can do it automatically: http://geowebcache.org/docs/current/concepts/metatiles.html -- David Winslow OpenGeo - http://opengeo.org/ On Mon, Jul 16, 2012 at 5:20 AM, vrbikdan <[email protected]> wrote: Hi all, I'm trying to set labels for my layers. I have point layer with about 3000 points and this layer is only for showing labels. In SLD I set AnchorPointX and Y to 0.5 and 0.5 so center of label should be exactly above the point. And this work if I serve this labels as single tile. But from some reasons I don't want to use single tile. So I define tiled: true in my OpenLayers. But in some cases label center is not exactly above point but displaced little bit. It is shown on images (it is only one example, this shift could be to any direction on any pixels). Code I used is here: new OpenLayers.Layer.WMS( "admin_obec_centroid_label_type", "http://192.168.1.98:8080/geoserver/zk/wms";, { layers: 'zk:admin_obec_centroid_label_type', srs: 'EPSG:3857', format: 'image/png', tiled: true, tilesOrigin : map.maxExtent.left + ',' + map.maxExtent.bottom, transparent: 'true' }, {singleTile: false, yx : {'EPSG:3857' : false}}) Is anything I forget to define or is it normal behavior and could't be changed? Thanks, Dan http://osgeo-org.1560.n6.nabble.com/file/n4988536/singleTile.png http://osgeo-org.1560.n6.nabble.com/file/n4988536/tiled.png -- View this message in context: http://osgeo-org.1560.n6.nabble.com/meta-tiling-doesn-t-preserve-position-of -labels-tp4988536.html Sent from the GeoServer - User mailing list archive at Nabble.com. ---------------------------------------------------------------------------- -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Geoserver-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geoserver-users
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