fhumanes author
The problem of deformation when reducing the size of an image, especially when the image is vertical or has been taken on a mobile, is general in PHPRunner. This has occurred in all versions and I, at least, have reported it but, as far as I know, it has never been solved. In my developments in React, I had to face the problem of reducing the images I took from my mobile phone and consulting on the Internet I saw how it was solved and so I applied it in my development. This same problem has been posted on the Xlinesoft forum and seeing that many other developers have the same problem, I have been encouraged to do this exercise. Objetive Perform image size transformations while preserving their orientation and proportion, and then use them in PHPRunner or any other solution. DEMO: https://fhumanes.com/resize/ CODE: <?php
$dir = __DIR__.'/../'; // Path directory files
$size_image = 600;
$size_mini = 148;
// get information about uploaded files
$file_array = my_json_decode($values["imagen"]);
$file = $file_array[0]; // In the example, only 1 file is allowed
if ($file['thumbnail'] == Null ) { // If there is information is that the image has already become
// handle single input with single file upload
$uploadedFile = $file['name'];
$dataFile = array();
$dataFile['filename'] = $file['name'];
$dataFile['type'] = $file['type'];
$tempFile = tempnam(sys_get_temp_dir(), 'CO_'); // Create temporary file
copy($dir.$uploadedFile, $tempFile) ; // Copy File
// ++++++++++++++++++++++++++++++ Resize imagen +++++++++++++++++++++++++++++
list($width, $height) = getimagesize($tempFile);
// Get the image EXIF data (if available)
if ($dataFile['type'] == 'image/jpeg') { // JPEG
$source = imagecreatefromjpeg($tempFile);
} else {
$source = imagecreatefrompng($tempFile);
}
$exif = exif_read_data($tempFile);
// Verify if EXIF data contains guidance information
$orientation = $exif['Orientation'];
if ( $orientation <> null) {
// Rotate the image according to the EXIF orientation
switch ($orientation) {
case 3:
// Rotate 180 degrees
$source = imagerotate($source, 180, 0);
break;
case 6:
// Rotate 90 degrees in a schedule
$source = imagerotate($source, 270, 0);
// Invierto $width, $height
$aux = $width;
$width = $height;
$height = $aux;
break;
case 8:
// Rotate 90 degrees in anti -Horary sense
$source = imagerotate($source, 90, 0);
// Invierto $width, $height
$aux = $width;
$width = $height;
$height = $aux;
break;
}
}
$thumbFile = tempnam(sys_get_temp_dir(), 'TH_'); // Crear fichero Temporal
$origFile = tempnam(sys_get_temp_dir(), 'CO_'); // Crear fichero Temporal
$percent1 = ($size_image)/$width; // Tamaño completo iamgen
$newwidth1 = $width * $percent1;
$newheight1 = $height * $percent1;
$percent2 = ($size_mini)/$width; // Tamaño thumbnail imagen
$newwidth2 = $width * $percent2;
$newheight2 = $height * $percent2;
$orig = imagecreatetruecolor($newwidth1, $newheight1);
$thumb = imagecreatetruecolor($newwidth2, $newheight2);
if ($dataFile['type'] == 'image/jpeg') { // JPEG
imagecopyresized($orig, $source, 0, 0, 0, 0, $newwidth1, $newheight1, $width, $height);
imagecopyresized($thumb, $source, 0, 0, 0, 0, $newwidth2, $newheight2, $width, $height);
imagejpeg($orig,$origFile);
imagejpeg($thumb,$thumbFile);
} else { // PNG
imagecopyresized($orig, $source, 0, 0, 0, 0, $newwidth1, $newheight1, $width, $height);
imagecopyresized($thumb, $source, 0, 0, 0, 0, $newwidth2, $newheight2, $width, $height);
imagepng($orig,$origFile);
imagepng($thumb,$thumbFile);
}
unlink($tempFile); // Eliminamos temporal
copy($origFile, $dir.$uploadedFile) ; // Copy File
// Name File thumbnail
$name_array = explode("/", $uploadedFile);
$last_name = $name_array[sizeof($name_array)-1];
$name_array = array_diff($name_array, array($last_name));
$last_name = 'th_'.$last_name;
$name_array[] = $last_name;
$name_thumbFile = implode('/',$name_array);
copy($thumbFile, $dir.$name_thumbFile) ; // Copy File
$file['size'] = filesize($origFile);
$file['thumbnail']= $name_thumbFile;
$ile['thumbnail_size']= filesize($dir.$name_thumbFile);
// update values of the field that stores file names
$file_array[0] = $file;
$values["imagen"] = my_json_encode($file_array);
unlink($origFile); // Eliminamos temporal
unlink($thumbFile); // Eliminamos temporal
}
If you are interested , continue reading the article at this link . |
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