Question

您好我正在使用Codigniter图像处理类来创建具有固定大小的缩略图所以我不会先调整大小（所以当我裁剪它时，我会得到一个很大的图像和平）然后裁剪它调整大小工作但作物不

这是我创建的功能

function _generate_thumbnail($filename)
{
$config['image_library']     = 'gd2';
$config['source_image']      = './project_pics/big/'.$filename;
$config['new_image']         = './project_pics/resize/'.$filename;
$config['maintain_ratio']    = TRUE;
$config['width']             = 650;

$this->load->library('image_lib');
$this->image_lib->initialize($config);
$this->image_lib->resize();

$this->image_lib->clear();

$config['image_library'] = 'gd2';
$config['source_image']  = './project_pics/resize/'.$filename;
$config['new_image']     = './project_pics/crop/'.$filename;
$config['width']         = 650;
$config['height']        = 450;
$config['x_axis']        = 0;
$config['y_axis']        = 0;

$this->load->library('image_lib');
$this->image_lib->initialize($config);
$this->image_lib->crop();   
}

Answer 1

使用Codeigniter的image_lib库有一些限制。你不能用这个lib一次性"resize and crop"。

您必须在每个操作之间重新image_lib，如下所示：

function _generate_thumbnail($filename)
{
 $config1 = $config2 = array();

 $config1['image_library']     = 'gd2';
 $config1['source_image']      = './project_pics/big/'.$filename;
 $config1['new_image']         = './project_pics/resize/'.$filename;
 $config1['maintain_ratio']    = TRUE;
 $config1['width']             = 650;

 $this->load->library('image_lib');
 $this->image_lib->initialize($config1);
 $this->image_lib->resize();

 $this->image_lib->clear();

 $config2['image_library'] = 'gd2';
 $config2['source_image']  = './project_pics/resize/'.$filename;
 $config2['new_image']     = './project_pics/crop/'.$filename;
 $config2['width']         = 650;
 $config2['height']        = 450;
 $config2['x_axis']        = 0;
 $config2['y_axis']        = 0;

 $this->image_lib->initialize($config2);
 $this->image_lib->crop();   
}

调整图像大小，然后使用Codigniter裁剪

1 个答案: