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ucitavanje i prikaz samo dijela (maske) ogromne slike?

 
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imbrod
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PostPosted: 28.02.2005 13:51    Post subject: ucitavanje i prikaz samo dijela (maske) ogromne slike? Reply with quote

(Mislim da je nekad davno netko postao nesto slicno ali stvarno ne mogu naci taj post...)

Imam ogromnu kartu. Trebam prikazati samo jedan njen segment, recimo od koordinati 100,200 do koordinati 300,400.

Mogao bih rijesiti problem da ucitam cijelu kartu i pomocu iframea ili layera (ili kombinacije jednog i drugog) i prikazem samo to. Medjutim, cijela karta je podosta 'teska'...

Ima li neki nacin da dinamicki 'izrezem' tu kartu (dakle bez ucitavanja cijele karte) i prikazujem samo dijelove temeljem varijabli koordinata, visine, sirine...? Da li se tu radi o PNG datotekama i ako da, kako?

(Mozda bi ovo islo u server-side, ali buduci da se radi o grafici a ne bazama podataka, odlucio sam se za postanje u client-side)
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