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+--- Thread: Image Manipulation - Resize and create thumbnail (/showthread.php?tid=6920)
Image Manipulation - Resize and create thumbnail - El Forum - 03-17-2008
[eluser]jedre[/eluser]
Hello!
After when I upload image file i need resize it and create thumbnail, but I want have 2 files.
For example:
I upload image file (image.jpg) 2000x1500px so I resize it to 500x500 and I want create thumb (70x50) from the same file. So I want have 2 files image.jpg (500x500) and image_thumb.jpg (70x50).
How Can I do it? I know how resize original file but I don't know how resize and create thumb.
Image Manipulation - Resize and create thumbnail - El Forum - 03-17-2008
[eluser]Ebot Ndip-Agbor[/eluser]
This is what I use in my controller to resize my pictures, hope it helps
Code:
//some code here
$picData=$this->upload->data();
$picFilePath=$picData['full_path'];
$picName=$picData['file_name'];
$picRawName=$picData['raw_name'];
$picsFolder=$picData['file_path'];
$picThumbNail=$picsFolder."/thumb_".$picRawName.$picData['file_ext'];
//load image library used by resize method below
$this->load->library('image_lib');
//resize the original to 500x500
$this->resizePicture($picFilePath,$picFilePath,500,500);
//resize the original pic again to get a thumbnail
$this->resizePicture($picFilePath,$picThumbNail,70,50);
$pictureData['picName']=$picName;
$pictureData['thumbName']="thumb_".$picName;
//save picture info in database
$this->my_model->savePicture($pictureData);Image Manipulation - Resize and create thumbnail - El Forum - 03-17-2008
[eluser]jedre[/eluser]
Do you use a resize method from image_lib? Can you show me resizePicture method?
What is wrong on my code?
in my constructor:
Code:
$this->imgmanrules = array(
'image_library' => 'GD2',
'maintain_ratio' => TRUE,
'width' => 500,
'height' => 500,
'quality' => 85,
'master_dim' => 'width',
);
$this->load->library('image_lib');code to resize image:
Code:
function _img()
{
//operacje na wgranym pliku
$fileInfo = $this->upload->data();
$this->saveData['nazwa'] = $fileInfo['file_name'];
$this->imgmanrules['source_image'] = $fileInfo['full_path']; //pobieranie sciezki do pliku
$width = getimagesize($fileInfo['full_path']);
if($width[0] > $this->imgmanrules['width'] || $width[1] > $this->imgmanrules['height'])
{
//skalowanie obrazka
$this->image_lib->initialize($this->imgmanrules);
$this->image_lib->resize();
$this->image_lib->clear();
}
$imgx = array(
'image_library' => 'GD2',
'maintain_ratio' => TRUE,
'create_thumb' => TRUE,
'width' => 100,
'height' => 100,
'quality' => 85,
'master_dim' => 'width',
'source_image' => $fileInfo['full_path']
);
//tworzenie miniatur
$this->image_lib->initialize($imgx);
$this->image_lib->resize();
}This code doesn't work how I write in first post :/
When image is smaller then 500x500px all is ok.
But when file is larger then 500x500 I take only one file with original name but size is thumbnail.
What is wrong?!
Image Manipulation - Resize and create thumbnail - El Forum - 03-17-2008
[eluser]Ebot Ndip-Agbor[/eluser]
Sorry I completely forgot to post the resize method. Here it is
Code:
//use this to resize a picture to given specification and name
function resizePicture($path,$newpath,$width,$height){
$config['image_library'] = 'GD2';
$config['source_image'] = $path;
$config['new_image']=$newpath;
$config['create_thumb'] = FALSE;
$config['maintain_ratio'] = TRUE;
$config['width'] = $width;
$config['height'] = $height;
//$this->load->library('image_lib', $config);
$this->image_lib->initialize($config);
$this->image_lib->resize();
}Image Manipulation - Resize and create thumbnail - El Forum - 03-17-2008
[eluser]jedre[/eluser]
Thank YOU. I'll also use "new_image" property.
Image Manipulation - Resize and create thumbnail - El Forum - 03-17-2008
[eluser]Ebot Ndip-Agbor[/eluser]
Glad I could help
