PHP ??? ?? ?? ? ??? ??
?? ??? ??? ???? ???? ??? ?????. ???? ??? ???? ??? ?? ??? ?? ???? ?? ??? ?? ???? ? ??? ??? ????? ?????.
????? ???? ? ?? ??? ??? ????.
| 函數(shù)名 | 函數(shù)說明 |
|---|---|
| imagecopyresampled | 重采樣拷貝部分圖像并調(diào)整大小 |
| imagecopyresized | 拷貝部分圖像并調(diào)整大小 |
? ? ?? ??? ???????. ? ? ?? ??? ???? ??? ????. ?? ????? ?? ??? ????. ??? ???? ?? ?? ?? ???? ????? ??? ?????.
bool imagecopyresampled(resource $ target image, Resource $ source image, int $ x ??? ???? ??, int $ y ??? ???? ?? , int $ source ?? x ??, int $ source ?? y ??, int $ ?? ??? ??, int $ ?? ??? ??, int $ ?? ??? ??, int $ ?? ??? ??)
?? ???? ?? ???? ????? ???? ??????.
bool imagecopyreized(resource $ target image, Resource $ source image, int $ target start x position, int $ target start y position, int $ source start x position, int $ source start y position, int $width of target image, int $height of target image, int $width of source image, int $height of source image)
??? ?? ?? ? ??? ??? ?????. ?, ???? ??? ? ?? ??? ????? ??? ??? ??? ????????.
?? ??:
?? ???? ???(x, y)?? ???? ???? ??? ??? ?????. ?? ???? ???(x, y)? ???? ???? ??? ??? ?????.
1. ???? ???? ???? ?????
1. ?? ???? ???
2. ??? ??(??/??) ??
3. ?? ???? ??? ??? ?? ??? ?????.
4. ?? ???
5 .??? ??? ?? ???? ??? ????
6. ???? ?????
Fan Bingbing ??? ?????:
<?php
//打開來源圖片
$image = imagecreatefrompng('fbb.png');
//定義百分比，縮放到0.1大小
$percent = 0.1;
// 將圖片寬高獲取到
list($width, $height) = getimagesize('fbb.png');
//設(shè)置新的縮放的寬高
$new_width = $width * $percent;
$new_height = $height * $percent;
//創(chuàng)建新圖片
$new_image = imagecreatetruecolor($new_width, $new_height);
//將原圖$image按照指定的寬高，復(fù)制到$new_image指定的寬高大小中
imagecopyresampled($new_image, $image, 0, 0, 0, 0, $new_width, $new_height, $width, $height);
header('content-type:image/jpeg');
imagejpeg($new_image);
?>
2. ???? ??? ??? ?? ??? ????.
1. ?? ???? ?? ???? ???
2. ?? ???? ?? ???? ??? ??? ?????. ?? ???? ????. (???)
3. ??? ?? ? ??
4. ??? ??
?? ???? "degree"?? ??? ???? ???????. ??? ??:
??? ??:
??? ??:
????? ??? ?????.
degree? ?? ??? 407, 154???.
degree?? ??? x?? ????, ?? ??? ? y ??? ???: 80, 89
?? ? ??? ??? x, y ???: 281, 71
?? ? ??? ??? x, y ??? ??? ????. ??? ??? ??? 132, 160
??? ?? ??? ??, ??? ?? ????. ?? ???? ??? ??? ???? ???? ?????.
<?php
$dst = imagecreatefrompng('hsq.png');
$src = imagecreatefrompng('du.png');
imagecopyresized($dst, $src, 281, 71, 407, 154, 132, 160, 80, 90);
header('content-type:image/jpeg');
imagejpeg($dst);
imagedestroy($dst);
imagedestroy($src);
?>??? ??? ???????:
