Help needed with image width height and crop

[orceht]

Hello everyone i've been using this php code to resize image 'on the fly' and it really rocks!

here's the code:

____________

<?php
header ("Content-type: image/jpeg");
/*
JPEG / PNG Image Resizer
Parameters (passed via URL):

img = path / url of jpeg or png image file

percent = if this is defined, image is resized by it's
value in percent (i.e. 50 to divide by 50 percent)

w = image width

h = image height

constrain = if this is parameter is passed and w and h are set
to a size value then the size of the resulting image
is constrained by whichever dimension is smaller

Requires the PHP GD Extension

Outputs the resulting image in JPEG Format

By: Michael John G. Lopez -

http://www.sydel.net

Filename : imgsize.php
*/

$img = $_GET['img'];
$percent = $_GET['percent'];
$constrain = $_GET['constrain'];
$w = $_GET['w'];
$h = $_GET['h'];

// get image size of img
$x = @getimagesize($img);
// image width
$sw = $x[0];
// image height
$sh = $x[1];

if ($percent > 0) {
// calculate resized height and width if percent is defined
$percent = $percent * 0.01;
$w = $sw * $percent;
$h = $sh * $percent;
} else {
if (isset ($w) AND !isset ($h)) {
// autocompute height if only width is set
$h = (100 / ($sw / $w)) * .01;
$h = @round ($sh * $h);
} elseif (isset ($h) AND !isset ($w)) {
// autocompute width if only height is set
$w = (100 / ($sh / $h)) * .01;
$w = @round ($sw * $w);
} elseif (isset ($h) AND isset ($w) AND isset ($constrain)) {
// get the smaller resulting image dimension if both height
// and width are set and $constrain is also set
$hx = (100 / ($sw / $w)) * .01;
$hx = @round ($sh * $hx);

$wx = (100 / ($sh / $h)) * .01;
$wx = @round ($sw * $wx);

if ($hx < $h) {
$h = (100 / ($sw / $w)) * .01;
$h = @round ($sh * $h);
} else {
$w = (100 / ($sh / $h)) * .01;
$w = @round ($sw * $w);
}
}
}

$im = @ImageCreateFromJPEG ($img) or // Read JPEG Image
$im = @ImageCreateFromPNG ($img) or // or PNG Image
$im = @ImageCreateFromGIF ($img) or // or GIF Image
$im = false; // If image is not JPEG, PNG, or GIF

if (!$im) {
// We get errors from PHP's ImageCreate functions...
// So let's echo back the contents of the actual image.
readfile ($img);
} else {
// Create the resized image destination
$thumb = @ImageCreateTrueColor ($w, $h);
// Copy from image source, resize it, and paste to image destination
@ImageCopyResampled ($thumb, $im, 0, 0, 0, 0, $w, $h, $sw, $sh);
// Output resized image
@ImageJPEG ($thumb);
}
?>

____________

[SAVE FILE AS 'imgsize.php']

BUT, i wanted to add new function so when, for example if the image is 600x500 and i want it to be 300x120 ... now it crops and STRETCHES the image and it's unproportional.. what i want is to make it proportional even if it's needed to cut the edges to fit the 300x120 pixels size... hopefully you understood what i wanted.. anyway the code for view image is

http://www.yourwebsite.com/imgsize.php?w=200&h=100&img=foto/enghrv2.jpg

i know i need to use

http://bg2.php.net/imagecopy

to crop the image as desired but i dont know how to do it with my code posted above...

if any kind soul could help it would be amazing, thanks!

 

[jpadie]

first rescale the image and then crop it. don't do it in one operation (well, you can, but it is easier in two operations).

for the first operation use imagecopyresampled on a truecolor image. for the second use the imagecopy function.

so for your code just take the output from the function that you have and bang it into imagecopy().

 

[orceht]

thanks!