Comunidad de diseño web y desarrollo en internet online

Saben como puedo cambiar el height en este código?

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MensajeEscrito el 20 May 2008 04:58 pm
Debe ser fácil para alguien que domine el tema, por que sale super detallado en los comentarios, sin embargo aún no lo logro, esto lo rescato de la galería ImageFlow_0.9 Esto es:

Código :

<?php 
/* 
---------------------------------------------------------------- 
Easy Reflections by Richard Davey, Core PHP ([email protected]) 
v2 - 2nd March 2007 
Updates include changes by Monte Ohrt ([email protected]) 
---------------------------------------------------------------- 
You are free to use this in any product, or on any web site. 
Latest builds at: http://reflection.corephp.co.uk 
---------------------------------------------------------------- 

This script accepts the following $_GET parameters: 

img    required   The source image (to reflect) 
height    optional   Height of the reflection (% or pixel value) 
bgc    optional   Background colour to fade into, default = #000000 
fade_start optional Start the alpha fade from whch value? (% value) 
fade_end optional End the alpha fade from whch value? (% value) 
jpeg    optional   Output will be JPEG at \'param\' quality (default 80) 
cache optional Save reflection image to the cache? (boolean) 
*/ 

// Replace special chars to be HTML-Code 
function stringToHTML($string) 
{ 
$array_search = array(\'é\', \'è\', \'ë\', \'ê\', \'à\', \'ä\', \'Ä\', \'â\', \'ù\', \'ü\', \'Ü\', \'û\', \'ö\', \'Ö\', \'ô\', \'ï\', \'î\'; 
$array_replace = array(\'é\', \'è\',   \'ë\', \'ê\', \'à\', \'ä\', \'Ä\', \'â\', \'ù\', \'ü\', \'Ü\', \'û\', \'ö\', \'Ö\', \'ô\', \'ï\', \'î\'; 
$string_return = str_replace($array_search, $array_replace, $string); 
return $string_return; 
} 

// CACHE! EVERYTHING! 
$_GET[\'cache\'] = 1; 

//   PHP Version sanity check 
if (version_compare(\'4.3.2\', phpversion()) == 1) 
{ 
echo \'This version of PHP is not fully supported. You need 4.3.2 or above.\'; 
exit(); 
} 

//   GD check 
if (extension_loaded(\'gd\' == false && !dl(\'gd.so\') 
{ 
echo \'You are missing the GD extension for PHP, sorry but I cannot continue.\'; 
exit(); 
} 

//   Our allowed query string parameters 

// To cache or not to cache? that is the question 
if (isset($_GET[\'cache\'])) 
{ 
if ((int) $_GET[\'cache\'] == 1) 
{ 
$cache = true; 
} 
else 
{ 
$cache = false; 
} 
} 
else 
{ 
$cache = false; 
} 

//   img (the image to reflect) 
if (isset($_GET[\'img\'])) 
{ 
$source_image = $_GET[\'img\']; 

//$source_image = utf8_decode($source_image); 

$source_image = str_replace(\'://\',\'\',$source_image); 
//$source_image = $_SERVER[\'DOCUMENT_ROOT\'] . DIRECTORY_SEPARATOR . $source_image; 

if (file_exists($source_image)) 
{ 
if ($cache) 
{ 
$cache_dir = dirname($source_image); 
$cache_base = basename($source_image); 
$cache_file = \'refl_\' . md5($_SERVER[\'REQUEST_URI\']) . \'_\' . $cache_base; 
$cache_path = $cache_dir . DIRECTORY_SEPARATOR . $cache_file; 

if (file_exists($cache_path) && filemtime($cache_path) >= filemtime($source_image)) 
{ 
// Use cached image 
$image_info = getimagesize($cache_path); 
header(\"Content-type: \" . $image_info[\'mime\']); 
readfile($cache_path); 
exit(); 
} 
} 
} 
else 
{ 
echo \'Cannot find or read source image\'; 
exit(); 
} 
} 
else 
{ 
echo \'No source image to reflect supplied\'; 
exit(); 
} 

//   bgc (the background colour used, defaults to black if not given) 
if (isset($_GET[\'bgc\']) == false) 
{ 
$red = 0; 
$green = 0; 
$blue = 0; 
} 
else 
{ 
//   Extract the hex colour 
$hex_bgc = $_GET[\'bgc\']; 

//   Does it start with a hash? If so then strip it 
$hex_bgc = str_replace(\'#\', \'\', $hex_bgc); 

switch (strlen($hex_bgc)) 
{ 
case 6: 
$red = hexdec(substr($hex_bgc, 0, 2)); 
$green = hexdec(substr($hex_bgc, 2, 2)); 
$blue = hexdec(substr($hex_bgc, 4, 2)); 
break; 

case 3: 
$red = substr($hex_bgc, 0, 1); 
$green = substr($hex_bgc, 1, 1); 
$blue = substr($hex_bgc, 2, 1); 
$red = hexdec($red . $red); 
$green = hexdec($green . $green); 
$blue = hexdec($blue . $blue); 
break; 

default: 
//   Wrong values passed, default to black 
$red = 0; 
$green = 0; 
$blue = 0; 
} 
} 

//   height (how tall should the reflection be?) 
if (isset($_GET[\'height\'])) 
{ 
$output_height = $_GET[\'height\']; 

//   Have they given us a percentage? 
if (substr($output_height, -1) == \'%\' 
{ 
//   Yes, remove the % sign 
$output_height = (int) substr($output_height, 0, -1); 

//   Gotta love auto type casting  
if ($output_height < 10) 
{ 
$output_height = \"0.0$output_height\"; 
} 
else 
{ 
$output_height = \"0.$output_height\"; 
} 
} 
else 
{ 
$output_height = (int) $output_height; 
} 
} 
else 
{ 
//   No height was given, so default to 50% of the source images height 
$output_height = 0.50; 
} 

if (isset($_GET[\'fade_start\'])) 
{ 
if (strpos($_GET[\'fade_start\'], \'%\' !== false) 
{ 
$alpha_start = str_replace(\'%\', \'\', $_GET[\'fade_start\']); 
$alpha_start = (int) (127 * $alpha_start / 100); 
} 
else 
{ 
$alpha_start = (int) $_GET[\'fade_start\']; 

if ($alpha_start < 1 || $alpha_start > 127) 
{ 
$alpha_start = 80; 
} 
} 
} 
else 
{ 
$alpha_start = 80; 
} 

if (isset($_GET[\'fade_end\'])) 
{ 
if (strpos($_GET[\'fade_end\'], \'%\' !== false) 
{ 
$alpha_end = str_replace(\'%\', \'\', $_GET[\'fade_end\']); 
$alpha_end = (int) (127 * $alpha_end / 100); 
} 
else 
{ 
$alpha_end = (int) $_GET[\'fade_end\']; 

if ($alpha_end < 1 || $alpha_end > 0) 
{ 
$alpha_end = 0; 
} 
} 
} 
else 
{ 
$alpha_end = 0; 
} 

/* 
---------------------------------------------------------------- 
Ok, let\'s do it ... 
---------------------------------------------------------------- 
*/ 

//   How big is the image? 
$image_details = getimagesize($source_image); 

if ($image_details === false) 
{ 
echo \'Not a valid image supplied, or this script does not have permissions to access it.\'; 
exit(); 
} 
else 
{ 
$width = $image_details[0]; 
$height = $image_details[1]; 
$type = $image_details[2]; 
$mime = $image_details[\'mime\']; 
} 

//   Calculate the height of the output image 
if ($output_height < 1) 
{ 
//   The output height is a percentage 
$new_height = $height * $output_height; 
} 
else 
{ 
//   The output height is a fixed pixel value 
$new_height = $output_height; 
} 

//   Detect the source image format - only GIF, JPEG and PNG are supported. If you need more, extend this yourself. 
switch ($type) 
{ 
case 1: 
//   GIF 
$source = imagecreatefromgif($source_image); 
break; 

case 2: 
//   JPG 
$source = imagecreatefromjpeg($source_image); 
break; 

case 3: 
//   PNG 
$source = imagecreatefrompng($source_image); 
break; 

default: 
echo \'Unsupported image file format.\'; 
exit(); 
} 


/* 
---------------------------------------------------------------- 
Build the reflection image 
---------------------------------------------------------------- 
*/ 

//   We\'ll store the final reflection in $output. $buffer is for internal use. 
$output = imagecreatetruecolor($width, $new_height); 
$buffer = imagecreatetruecolor($width, $new_height); 

//   Copy the bottom-most part of the source image into the output 
imagecopy($output, $source, 0, 0, 0, $height - $new_height, $width, $new_height); 

//   Rotate and flip it (strip flip method) 
for ($y = 0; $y < $new_height; $y++) 
{ 
imagecopy($buffer, $output, 0, $y, 0, $new_height - $y - 1, $width, 1); 
} 

$output = $buffer; 

/* 
---------------------------------------------------------------- 
Apply the fade effect 
---------------------------------------------------------------- 
*/ 

//   This is quite simple really. There are 127 available levels of alpha, so we just 
//   step-through the reflected image, drawing a box over the top, with a set alpha level. 
//   The end result? A cool fade into the background colour given. 

//   There are a maximum of 127 alpha fade steps we can use, so work out the alpha step rate 

$alpha_length = abs($alpha_start - $alpha_end); 

for ($y = 0; $y <= $new_height; $y++) 
{ 
// Get % of reflection height 
$pct = $y / $new_height; 

// Get % of alpha 
if ($alpha_start > $alpha_end) 
{ 
$alpha = (int) ($alpha_start - ($pct * $alpha_length)); 
} 
else 
{ 
$alpha = (int) ($alpha_start + ($pct * $alpha_length)); 
} 

imagefilledrectangle($output, 0, $y, $width, $y, imagecolorallocatealpha($output, $red, $green, $blue, $alpha)); 

} 


/* 
---------------------------------------------------------------- 
HACK - Build the reflection image by combining the source 
image AND the reflection in one new image! 
---------------------------------------------------------------- 
*/ 
$finaloutput = imagecreatetruecolor($width, $height+$new_height); 
imagecopy($finaloutput, $source, 0, 0, 0, 0, $width, $height); 
imagecopy($finaloutput, $output, 0, $height, 0, 0, $width, $new_height); 
$output = $finaloutput; 

/* 
---------------------------------------------------------------- 
Output our final PNG 
---------------------------------------------------------------- 
*/ 

if (headers_sent()) 
{ 
echo \'Headers already sent, I cannot display an image now. Have you got an extra line-feed in this file somewhere?\'; 
exit(); 
} 
else 
{ 
//   If you\'d rather output a JPEG instead of a PNG then pass the parameter \'jpeg\' (no value needed) on the querystring 

if (isset($_GET[\'png\'])) 
{ 
//   PNG 
header(\"Content-type: image/png\"); 
imagepng($output); 

// Save cached file 
if ($cache) 
{ 
imagepng($output, $cache_path); 
} 

} 
else 
{ 
if(!isset( $_GET[\'jpeg\'])) $_GET[\'jpeg\'] = 90; 

$quality = (int) $_GET[\'jpeg\']; 

if ($quality < 1 || $quality > 100) 
{ 
$quality = 90; 
} 

//   JPEG (the final parameter = the quality, 0 = terrible, 100 = pixel perfect) 
header(\"Content-type: image/jpeg\"); 
imagejpeg($output, \'\', $quality); 

// Save cached file 
if ($cache) 
{ 
imagejpeg($output, $cache_path, $quality); 
} 


} 

imagedestroy($output); 
exit(); 
} 
?> 


Bueno cualquier ayuda la agradezco y es bienvenida, y si me pueden enseñar un poco a cerca del funcionamiento mejor sería.

Por kiltroconpulgas

96 de clabLevel



 

safari
Citar            
MensajeEscrito el 20 May 2008 06:39 pm
[sugerencia] para que te presten atención trata de usar las etiquetas "code"... es mucho mas fácil leer (valga la redundancia) el código que postees...
[/sugerencia]

Ejemplo del resultado:

Código :

tu código aquí

Por mauril26

161 de clabLevel



 

mozilla
Citar            
MensajeEscrito el 20 May 2008 08:49 pm
Chuuuuu... lo olvidé, gracias por l e dato

Por kiltroconpulgas

96 de clabLevel



 

safari
Citar            
MensajeEscrito el 21 May 2008 01:33 am
Me parece que la altura se la envías por GET, también hay una parte en el código que la setea por defecto a 50%. La mayoría de editores de texto tienen una función de buscar, ella es tu amiga.

Si quieres mejor ayuda en el futuro te recomiendo que no pongas el código entero, sino solamente el trozo que te interesa.

Por Odin

Claber

639 de clabLevel

2 tutoriales

Genero:Masculino   Premio_Secretos

El valle de las hamacas

firefox

 

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