Yii:Why images are not resized correctly ? - image

Question

I am using image extension for image re sizing but they are not resized according to the parameters which i gave. Here is my code.Is there any mistake in my code or what. Images which are resized have dimension equal to "800*533"
but not exactly equals to 800*600.
public function actionCreate()
{
$model=new Business;
// Uncomment the following line if AJAX validation is needed
// $this->performAjaxValidation($model);
if(isset($_POST['Business']))
{
$rnd = rand(0, 9999); // generate random number between 0-9999
$model->attributes = $_POST['Business'];
$uploadedFile = CUploadedFile::getInstance($model, 'image');
$fileName = "{$rnd}-{$uploadedFile}"; // random number + file name
$model->image = $fileName;
if ($model->save()) {
if(!empty($uploadedFile)) // check if uploaded file is set or not
{
//$uploadedFile->saveAs(Yii::getPathOfAlias('webroot')."/img".$filename);
$uploadedFile->saveAs(Yii::app()->basePath . '/../img/' . $fileName);
$image = Yii::app()->image->load(Yii::app()->basePath . '/../img/' . $fileName);
$image->resize(800, 600);
$image->save(Yii::app()->basePath . '/../img/' . $fileName);
}
$this->redirect(array('view', 'id' => $model->id));
}
}
$this->render('create', array(
'model' => $model,
));
}

Answer 1

First advise. Don't store not resized image you can use
tempName property of CUploadedFile
$image = Yii::app()->image->load($uploadedFile->tempName );
$image->resize(800, 600);
$image->save(Yii::app()->basePath . '/../img/' . $fileName);
About resize i think you have to calculate size of resized picture.
Here is my code
protected static function getImgBox($img,$width,$height,$bySide,$boxType){
$img_width=$img->getSize()->getWidth();
$img_height=$img->getSize()->getHeight();
$newWidth =0;
$newHeight=0;
switch($boxType){
case self::BOX_TYPE_FILL:
{
$newWidth=$width;
$newHeight=$height;
}
break;
case self::BOX_TYPE_WO:{
if($bySide==self::BY_SIDE_WIDTH) {
$newWidth = $width;
$newHeight = $img_height * $newWidth / $img_width;
}
if($bySide==self::BY_SIDE_HEIGHT){
$newHeight=$height;
$newWidth = $img_width*$newHeight/$img_height;
}
}
break;
case self::BOX_TYPE_INSIDE:{
$newWidth = $width;
$newHeight = $img_height * $newWidth / $img_width;
if($newHeight>=$height){
$newHeight=$height;
$newWidth = $img_width*$newHeight/$img_height;
}
}
}
if($newHeight!=0 && $newWidth!=0){
return new Box(ceil($newWidth),ceil($newHeight));
}
else
return null;
}
I don't know witch extension you use. I use Imagine Extension for Yii 2

Answer 2

$imgpathlogo = App::param("upload_path").'outletlogo'. DIRECTORY_SEPARATOR;
$imgpathlogothumb100 = App::param("upload_path")."outletlogo". DIRECTORY_SEPARATOR."thumb100". DIRECTORY_SEPARATOR;
$imgpathlogothumb200 = App::param("upload_path")."outletlogo". DIRECTORY_SEPARATOR."thumb200". DIRECTORY_SEPARATOR;
///////////////////Chek Outlet New Logo Images////////////////
if ($_FILES['OutletMaster']['name']['outlet_logo'] != "") {
$imagelogo=$files['OutletMaster']['name']['outlet_logo'];
$logofilename=explode(".", $imagelogo);
$logofileext = $logofilename[count($logofilename) - 1];
$newlogofilename = uniqid(). "." . $logofileext;
$model->outlet_logo = $newlogofilename;
move_uploaded_file($_FILES['OutletMaster']['tmp_name']['outlet_logo'],$imgpathlogo.$newlogofilename);
//////////////////Creating Thumbnail For Outlet Logo///////////////////////////
$ext = explode(".", strtolower($newlogofilename))[1];
$src = $imgpathlogo.$newlogofilename;
if ($ext == 'gif')
$resource = imagecreatefromgif($src);
else if ($ext == 'png')
$resource = imagecreatefrompng($src);
else if ($ext == 'PNG')
$resource = imagecreatefrompng($src);
else if ($ext == 'jpg' || $ext == 'jpeg')
$resource = imagecreatefromjpeg($src);
$width = imagesx($resource);
$height = imagesy($resource);
$thumbWidth100 = 100;
$desired_width100 = $thumbWidth100;
$desired_height100 = floor( $height * ( $thumbWidth100 / $width ) );
$virtual_image = imagecreatetruecolor($desired_width100,$desired_height100);
imagecopyresized($virtual_image,$resource,0,0,0,0,$desired_width100,$desired_height100,$width,$height);
imagejpeg( $virtual_image, "{$imgpathlogothumb100}{$newlogofilename}" );
$thumbWidth200 = 200;
$desired_width200 = $thumbWidth200;
$desired_height200 = floor( $height * ( $thumbWidth200 / $width ) );
$virtual_image = imagecreatetruecolor($desired_width200,$desired_height200);
imagecopyresized($virtual_image,$resource,0,0,0,0,$desired_width200,$desired_height200,$width,$height);
imagejpeg( $virtual_image, "{$imgpathlogothumb200}{$newlogofilename}" );
}