As long I know, "tiled" images can partially loaded into the memory. This is their main advantage and the reason why them are so popular as map image formats. Nothing to do with compression. Using "tiled" images even a small PDA with poor memory amount can manage very huge maps (E.G. 2 GB compressed!!). Look at OziExplorer CE SW and ECW or OZXF file formats features. Giorgio --------- Original Message -------- Da: List for Therion users <therion@speleo.sk> To: therion@speleo.sk <therion@speleo.sk> Oggetto: Re: [Therion] A totally unreasonable request Data: 19/05/11 15:42 >

Hello Giorgio,

the problem is not the image format itself. The difficulty is, that the image (uncompressed) must be loaded into the memory of the graphic card.

Regards Wolfgang

Am 19.05.2011 11:22, schrieb Giorgio Pannuzzo:

...

The real best solution seems to be the compatibility with "tiled"

graphic

...

formats, like ECW. I don't know how difficult is the needed work for programmers.

Giorgio -- Caselle da 1GB, trasmetti allegati fino a 3GB e in piu' IMAP, POP3 e SMTP autenticato? GRATIS solo con Email.it: http://www.email.it/f

Sponsor: Un Giorno di Sole te lo Regaliamo Noi.Approfitta della Speciale Offerta dal 21/5 al 15/6, sette giorni al prezzo di sei. Club Hotel Cala Rosa Stintino - Sardegna Clicca qui: http://adv.email.it/cgi-bin/foclick.cgi?mid=11485&d=20110519

_______________________________________________ Therion mailing list Therion@speleo.sk http://mailman.speleo.sk/mailman/listinfo/therion

_______________________________________________ Therion mailing list Therion@speleo.sk http://mailman.speleo.sk/mailman/listinfo/therion

-- Caselle da 1GB, trasmetti allegati fino a 3GB e in piu' IMAP, POP3 e SMTP autenticato? GRATIS solo con Email.it: http://www.email.it/f Sponsor: Cesenatico, Hotel Lalla, a 30 metri dal mare dotato dei migliori comfort, con camere rinnovate, Vi aspetta per le Vostre vacanze. Scoprite le offerte Clicca qui: http://adv.email.it/cgi-bin/foclick.cgi?mid=11498&d=20110519