Question

我尝试使用codeigniter的库函数裁剪图像。但$ this-＆gt; image_lib-＆gt; crop（）函数无法更改图像。

这是我的代码 -

    <?php

    class Cropimg extends CI_Controller {

function index()
{
$config['image_library'] = 'gd2';
    $config['source_image'] = 'C:\Users\Public\Pictures\Sample Pictures\Chrysanthemum.jpg';
    $config['x_axis'] = '300';
    $config['y_axis'] = '200';
    $config['maintain_ratio'] = FALSE;
    $config['new_image'] = 'C:\Users\Public\Pictures\Sample Pictures\new_crop_img.jpg';
   // $config['width'] = $width-10;
    //$config['height'] = $height-10;


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


    if ( ! $this->image_lib->crop())

   echo $this->image_lib->display_errors();
    else
     echo "<strong>Your image has been cropped successfully..!!</strong>";
}
   }

＆GT;

Answer 1

请尝试此代码，其工作正常。 裁剪时是否有任何错误？

    $config['image_library'] = 'GD2';
    $config['source_image'] = 'C:\Users\Public\Pictures\Sample Pictures\Chrysanthemum.jpg';
    $config['new_image'] = 'C:\Users\Public\Pictures\Sample Pictures\new_crop_img.jpg';
    $config['height'] = '200';
    $config['width'] = '300';
    $config['maintain_ratio'] = FALSE;

    $this->image_lib->initialize($config);

    if ( ! $this->image_lib->crop())
    {
        echo $this->image_lib->display_errors();
    }else
    {
        echo "<strong>Your image has been cropped successfully..!!</strong>";
    }

Answer 2

为此提供高度和宽度。高度和高度宽度是必要的，从一个点（X轴，Y轴）告诉图像的长度到右侧＆amp;朝向下行的长度（作为高度）。这些将被视为身高＆amp;该图像的宽度。

所以取消评论

 $config['height'] = '200';
 $config['width'] = '300';

Codeigniter函数image_lib-＆gt; crop（）不工作..！

2 个答案: