PHP ImagickDraw skewY()用法及代码示例

ImagickDraw::skewY()函数是PHP中的一个内置函数，用于在垂直方向上倾斜当前坐标系。

用法:

bool ImagickDraw::skewY( $degrees )

参数：此函数接受单个参数$degrees，该参数用于保存倾斜度。

返回值：此函数不返回返回任何值。

以下示例程序旨在说明PHP中的ImagickDraw::skewY()函数：

程序1:

<?php 
  
// require_once('path/vendor/autoload.php'); 
   
// Create an ImagickDraw object. 
$draw = new ImagickDraw(); 
   
// Set the image filled color 
$draw->setFillColor('blue'); 
$points = [['x' => 40 * 5, 'y' => 10 * 5],  
           ['x' => 70 * 5, 'y' => 50 * 5],  
           ['x' => 60 * 5, 'y' => 15 * 5], ]; 
   
// Draw the polygon 
$draw->polygon($points); 
   
// Set the image filled color 
$draw->setFillColor('red'); 
$draw->skewY(-60); 
$points = [['x' => 40 * 5, 'y' => 10 * 5],  
           ['x' => 70 * 5, 'y' => 50 * 5], 
           ['x' => 60 * 5, 'y' => 15 * 5], ]; 
   
// Draw the polygon 
$draw->polygon($points); 
   
// Set the image filled color 
$draw->setFillColor('green'); 
$draw->skewY(30); 
$points = [['x' => 40 * 5, 'y' => 10 * 5],  
           ['x' => 70 * 5, 'y' => 50 * 5],  
           ['x' => 60 * 5, 'y' => 15 * 5], ]; 
   
// Draw the polygon 
$draw->polygon($points); 
   
// Create new Imagick object  
$image = new Imagick(); 
   
// Set the image dimensions 
$image->newImage(500, 500, 'white'); 
   
// Set the image format 
$image->setImageFormat("png"); 
   
// Draw the image  
$image->drawImage($draw); 
header("Content-Type: image/png"); 
   
// Display the image 
echo $image->getImageBlob(); 
?>

输出：
skewY

程序2:

<?php 
  
// require_once('path/vendor/autoload.php'); 
   
// Create an ImagickDraw object 
$draw = new ImagickDraw(); 
   
// Set the stroke color 
$draw->setStrokeColor('black'); 
   
// Set the image filled color 
$draw->setFillColor('red'); 
   
// Draw the circle 
$draw->circle(250, 250, 100, 150);  
   
// Set the image filled color 
$draw->setFillColor('green'); 
$draw->skewY(-30); 
   
// Draw the circle 
$draw->circle(250, 250, 100, 150);  
   
// Set the image filled color 
$draw->setFillColor('yellow'); 
$draw->skewY(-60); 
   
// Draw the circle 
$draw->circle(250, 250, 100, 150);  
   
// Create new Imagick object  
$image = new Imagick(); 
   
// Set the image dimensions 
$image->newImage(700, 700, 'white'); 
   
// Set the image format 
$image->setImageFormat("png"); 
   
// Draw the image  
$image->drawImage($draw); 
header("Content-Type: image/png"); 
   
// Display the image 
echo $image->getImageBlob(); 
?>

输出：
skewY

参考： http://php.net/manual/en/imagickdraw.skewy.php

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注：本文由纯净天空筛选整理自sarthak_ishu11大神的英文原创作品 PHP | ImagickDraw skewY() Function。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。