> Yeah, this issue has probably to do with the geometry clipping that is > done for geometries that span over a long coordinate range, to avoid > running out of coordinate space. A workaround would be to split your > geometries into smaller ones, or use the Canvas renderer as Eric > suggested. >
We have already splitted the geometry (previously it was a big polygon with a big hole ;-) Seems it not enough ... sight !-( btw, using the Canvas renderer won't work for IE, will it ? didier > Andreas. > > On Sat, May 19, 2012 at 4:03 PM, RICHARD Didier <[email protected]> > wrote: >> >>> On Sat, May 19, 2012 at 1:08 PM, RICHARD Didier <[email protected]> >>> wrote: >>>> Hi devs, >>>> >>>> Based on the kml-layer.html with the following code : >>>> >>>> var map = new OpenLayers.Map({ >>>> div: "map", >>>> layers: [ >>>> new OpenLayers.Layer.WMS( >>>> "WMS", "http://vmap0.tiles.osgeo.org/wms/vmap0";, >>>> {layers: "basic"} >>>> ), >>>> new OpenLayers.Layer.Vector("KML", { >>>> strategies: [new OpenLayers.Strategy.Fixed()], >>>> protocol: new OpenLayers.Protocol.HTTP({ >>>> url: "polygon.kml",/****** the polygon ******/ >>>> format: new OpenLayers.Format.KML({ >>>> extractStyles: true, >>>> extractAttributes: true, >>>> maxDepth: 2 >>>> }) >>>> }) >>>> }) >>>> ], >>>> numZoomLevels:19,/****** 19 levels to see the bug ******/ >>>> center: new OpenLayers.LonLat(4.3560894576721, >>>> 45.084481104508),/****** new center ******/ >>>> zoom: 17 >>>> }); >>>> >>>> >>>> At this zoom, the symbology is correct : polygon's inside is filled >>>> and >>>> the outside is left blank. >>>> When you zoom to level 18, the polygon's inside is not filled anymore >>>> and >>>> the outside is filled. >>>> >>>> Tested with OpenLayers 2.11, OpenLayers 2.12-rc4. >>>> >>>> The polygon is attached. >>>> >>>> I have browse the tickets on trac, but found nothing relevant. >>>> Previously, >>>> there was a hole in the polygon, but it has been removed. >>> >>> Nasty. Do you know an OpenLayers version with which your example >>> works? Your example works correctly with the Canvas renderer >>> (renderers: ['Canvas'] in the layer config), so this is probably a bug >>> in the SVG renderer. >>> >> >> 2.10, 2.9.1, 2.8, 2.7 : broken >> 2.6 : when zooming in, the KML is not drawn ... >> 2.5 : the browser's support for rendering is broken (despite : >> renderes:['SVG'] added in the code) >> >> (tested under FF 12 / Linux) >> >> So, I guess it is an old issue with vector rendering ?! >> >> didier >> >>> >>> >>> -- >>> Eric Lemoine >>> >>> Camptocamp France SAS >>> Savoie Technolac, BP 352 >>> 73377 Le Bourget du Lac, Cedex >>> >>> Tel : 00 33 4 79 44 44 96 >>> Mail : [email protected] >>> http://www.camptocamp.com >>> >> >> >> -- >> RICHARD Didier - Chef du pôle technique du Géoportail >> 2/4, avenue Pasteur - 94165 Saint Mandé Cedex >> Tél : +33 (0) 1 43 98 83 23 >> _______________________________________________ >> Dev mailing list >> [email protected] >> http://lists.osgeo.org/mailman/listinfo/openlayers-dev > > > > -- > Andreas Hocevar > OpenGeo - http://opengeo.org/ > Expert service straight from the developers. > -- RICHARD Didier - Chef du pôle technique du Géoportail 2/4, avenue Pasteur - 94165 Saint Mandé Cedex Tél : +33 (0) 1 43 98 83 23 _______________________________________________ Dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/openlayers-dev
