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ucitavanje i prikaz samo dijela (clipa, maske) slike

 
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imbrod
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PostPosted: 01.03.2005 17:39    Post subject: ucitavanje i prikaz samo dijela (clipa, maske) slike Reply with quote

Buduci da nitko ne odgovara na client-side forumu, da probamo ovdje:

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?
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che.UP
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Joined: 07 Sep 2003
Posts: 2320
Location: zagreb

PostPosted: 01.03.2005 17:56    Post subject: Add user to your forum ignore list Reply with quote

ukoliko koristis php mozes koristiti image magick ( http://www.imagemagick.org/ ) koji podrzava velik broj slikovnih formata

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njava
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Joined: 25 Aug 2003
Posts: 624
Location: Zagreb

PostPosted: 02.03.2005 03:39    Post subject: Add user to your forum ignore list Reply with quote

probaj ovo
http://www.zoomify.com/
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liban0n



Joined: 10 Feb 2004
Posts: 128
Location: Dubrovnik, Zagreb

PostPosted: 02.03.2005 09:47    Post subject: Re: ucitavanje i prikaz samo dijela (clipa, maske) slike Add user to your forum ignore list Reply with quote

imbrod wrote:
Buduci da nitko ne odgovara na client-side forumu, da probamo ovdje:

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?


$file = "mojaslika.jpg";
$final = "mojaslikafinal.jpg";
$width = "300"; // trazeni
$height = "500"; // trazeni
$odakle = "150";
$dokle = "400";

$src = ImageCreateFromJPEG($file);
$img = ImageCreate($width,$height); // postaviš rezu slike po želji

ImageCopyResized ($img, $src, 0, 0, 0, 0, $width, $height,$odakle , $dokle );
ImageJPEG($img,$final , 90);

ImageDestroy ($img);
ImageDestroy ($src);

Ovo ti je u grubo kako mozes resample na slici raditi ... defakto vise nesto kao zoom.
Uglavnom poigraj se s copyresized.

http://www.php.net/manual/en/function.imagecopyresized.php

Princip je isti sve su ostalo nijanse Smile

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budha



Joined: 02 Mar 2004
Posts: 1377
Location: Osijek

PostPosted: 02.03.2005 11:34    Post subject: Add user to your forum ignore list Reply with quote

njava wrote:
probaj ovo
http://www.zoomify.com/

weee! genijalno!
Dancing

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imbrod
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PostPosted: 02.03.2005 11:50    Post subject: Reply with quote

Hvala ljudi!

Inace, ja koristim ASP tehnologiju, ali probat cemo s PHP-om.
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imbrod
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PostPosted: 02.03.2005 11:53    Post subject: Reply with quote

Inace, sto se tice zoomify-ja, flash mi nece biti od pomoci. Naime, to sam vec radio ali na CD aplikaciji u flashu i tamo me nije bilo briga sto je karta teska 100 MB...

Meni je izglednije ovo rjesenje s PHP-om.
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