Hi everyone, I am looking into building a mapping application for the New Zealand and Chatham Island region. Unfortunately, this area covers the date-line which causes a number of issues right now.
(1) I use wrap-datetime for WMS layers to be able to render tiles of the 'other side' of the date-line. This works fine. When I pan the map around the dateline area, it refreshes the entire map and loads the times again. Question: what is the best way to avoid this refresh? (2) When I use a WFS layer on-top of the WMS layer, I get a weird behaviour. It has been mentioned a few times already, i.e. when I pan the map from the west to the easy and pass the date-line, the WFS layer 'disappears'. After trying a number of configuration settings (i.e. maxExtent and restrictedExtent) I get the opposite behaviour. It appears when I am in the -180 area, but disappears when I pan to the easy and cross the dateline. I could create a behaviour which works fine with a few limitations to the map, but the info-bubble doesn't work any more because the WFS layer seems to be out of the restrictedExtent of the map and the coordinates are set to -180, which positions the popup far too the left. Anyway, is there a recipe how to deal with the dateline in general when using WFS and WMS layers? What coordinates should I use for restricted extent or map extent? Can I 'first' open layers to offset the dateline, i.e. rotate the dateline by 90 degrees to ensure that this particular area in New Zealand is not effected by the +180/-180 issue and use coordinates beyond +180? I know that PostGIS offers this functionality and mapserver is able to deal with coordinates beyond 180 degrees. I am really hitting a wall here and looking forward for any help. Thanks, Rainer -- View this message in context: http://osgeo-org.1803224.n2.nabble.com/Datetime-for-WMS-and-WFS-layers-confusion-tp5508398p5508398.html Sent from the OpenLayers Users mailing list archive at Nabble.com. _______________________________________________ Users mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/openlayers-users
