On 4-Feb-07, at 9:41 AM, Chris Holmes wrote: > >> However, it seems like Simone can lead us to bigger and better >> things. >> Simone, when uDig eventually integrates your work, will it be >> possible >> to make a set of structured requests of the WMS to build a temporary >> image pyramid to improve user responsiveness. A user has at most >> 2000x2000 pixels on their screen. The base request should be for >> whatever area of interest (extent and scale) the map has when the >> user >> adds the layer to the map (or makes it visible). However, once that >> request is fulfilled, couldn't uDig start building an image >> pyramid on >> the fly so that whatever the user does next (pan, zoom) uDig would >> have >> the data. We can see immediately that there are a whole slew of >> issues >> that arise in designing such a background pyramid building. Is this >> something some of you have been pondering? > > In my opinion the best way to do this would be to follow the WMS > Client recommendation: http://wiki.osgeo.org/index.php/ > WMS_Tiling_Client_Recommendation > > This is what openlayers uses, so we'd benefit from the caching of > servers that openlayers is hitting. They pre-request a buffer, but > not the next zoom level. uDig could also easily cache and pre- > cache in this way. > > Chris
Currently uDig has no tiling what so ever. I'd love to see it in the future as well it makes for a nice user experience. Jody has done some work to make up a framework that can be leveraged by uDig. Jesse ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier. Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Geotools-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geotools-devel
