All good ideas- but first I have to get code working that will map coordinates to tile numbers. There are examples, and I'll use them as starting points. The tiles will be cached with names that match the server structure, so downloading additional tiles could be done a number of ways- both within and external to Xastir.
...jerry On Mon, Jun 28, 2010 at 4:41 PM, Curt, WE7U <[email protected]> wrote: > On Mon, 28 Jun 2010, Jerry Dunmire wrote: > >> Yes, I have started to look at using the tile servers. I expect much >> better >> performance when using cached tiles. > > We could also play the same trick as a lot of the web-page mapping > systems that use tiles: Pre-download tiles outside the map edges so > that a pan in any direction will have all the tiles it needs for > display. That's one of the ways they achieve the "apparent" speed: > They download tiles in the background after you receive the initial > map. > > One could extend that technique to snag tiles at the next zoom level > up/down as well. > > -- > Curt, WE7U. <http://www.eskimo.com/~archer> > APRS: Where it's at! <http://www.xastir.org> > Lotto: A tax on people who are bad at math. - unknown > Windows: Microsoft's tax on computer illiterates. - WE7U. > The world DOES revolve around me: I picked the coordinate system!" > _______________________________________________ > Xastir mailing list > [email protected] > http://lists.xastir.org/cgi-bin/mailman/listinfo/xastir > _______________________________________________ Xastir mailing list [email protected] http://lists.xastir.org/cgi-bin/mailman/listinfo/xastir
