[Geoserver-devel] [jira] (GEOS-6128) On the fly metatiling can return repeated tiles at (very) high zoom levels

[Andrea Aime (JIRA)]

Andrea Aime created GEOS-6128 On the fly metatiling can return repeated tiles at (very) high zoom levels Issue Type: Bug Affects Versions: 2.4.1 Assignee: Andrea Aime Components: WMS Created: 31/Oct/13 5:37 AM Description: These two requests (sample data available) return the same tile: http://localhost:8080/geoserver/ows?SERVICE=WMS&STYLES=line&FORMAT=image%2Fpng&TRANSPARENT=TRUE&TILED=true&TILESORIGIN=-20037508.34%2C%20-20037508.34&BUFFER=10&LAYERS=cite%3Afgn_con&EXCEPTIONS=XML&VERSION=1.3.0&REQUEST=GetMap&CRS=EPSG%3A900913&BBOX=1215736.8585492,5455476.1387128,1215739.2472063,5455478.5273699&WIDTH=256&HEIGHT=256 http://localhost:8080/geoserver/ows?SERVICE=WMS&STYLES=line&FORMAT=image%2Fpng&TRANSPARENT=TRUE&TILED=true&TILESORIGIN=-20037508.34%2C%20-20037508.34&BUFFER=10&LAYERS=cite%3Afgn_con&EXCEPTIONS=XML&VERSION=1.3.0&REQUEST=GetMap&CRS=EPSG%3A900913&BBOX=1215739.2472063,5455476.1387128,1215741.6358635,5455478.5273699&WIDTH=256&HEIGHT=256 The zoom level in this case is 23 of the Google tile system (in other words, the scale is 1:33, more CAD than GIS). There is a numerical precision issue computing the location of the tile in the metatile, which should be fixed by changing the way the computation is done. Project: GeoServer Priority: Major Reporter: Andrea Aime

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