PHP ImagickDraw pathClose()用法及代码示例

ImagickDraw::pathClose()函数是PHP中的内置函数，用于将路径元素添加到当前路径，该路径元素通过绘制直线来关闭当前子路径。简而言之，它用于将笔画完全应用于所有边。

用法:

bool ImagickDraw::pathClose( void )

参数：此函数不接受任何参数。

返回值：成功时此函数返回TRUE。

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

示例1:

<?php 
  
// Create a new imagick object 
$imagick = new Imagick(); 
  
// Create a image on imagick object 
$imagick->newImage(800, 250, 'black'); 
  
// Create a new ImagickDraw object 
$draw = new ImagickDraw(); 
  
// Set the stroke color 
$draw->setStrokeColor('white'); 
  
// Set the stroke width 
$draw->setStrokeWidth(5); 
  
// Create a shape with four corners using 
// paths with pathClose() function 
$draw->pathStart(); 
$draw->pathMoveToAbsolute(420, 50); 
$draw->pathMoveToRelative(20, 0); 
$draw->pathLineToRelative(50, 90); 
$draw->pathLineToVerticalRelative(30); 
$draw->pathLineToHorizontalAbsolute(250); 
$draw->pathClose(); 
$draw->pathFinish(); 
  
// Render the draw commands 
$imagick->drawImage($draw); 
  
// Show the output 
$imagick->setImageFormat('png'); 
header("Content-Type: image/png"); 
  
echo $imagick->getImageBlob(); 
?>

输出：

示例2:

<?php 
  
// Create a new imagick object 
$imagick = new Imagick(); 
  
// Create a image on imagick object 
$imagick->newImage(800, 250, 'white'); 
  
// Create a new ImagickDraw object 
$draw = new ImagickDraw(); 
  
// Add texts to image 
$draw->annotation(100, 200, 'With pathClose()'); 
$draw->annotation(500, 200, 'Without pathClose()'); 
  
// Set the stroke color 
$draw->setStrokeColor('green'); 
  
// Set the stroke width 
$draw->setStrokeWidth(5); 
  
// Create a shape with three coreners using 
// paths (with pathClose()) 
$draw->pathStart(); 
$draw->pathMoveToAbsolute(20, 50); 
$draw->pathMoveToRelative(20, 0); 
$draw->pathLineToRelative(50, 90); 
$draw->pathLineToVerticalRelative(0); 
$draw->pathLineToHorizontalAbsolute(250); 
$draw->pathClose(); 
$draw->pathFinish(); 
  
// Create the same shape using 
// paths (without pathClose()) 
$draw->translate(400, 0); 
$draw->pathStart(); 
$draw->pathMoveToAbsolute(20, 50); 
$draw->pathMoveToRelative(20, 0); 
$draw->pathLineToRelative(50, 90); 
$draw->pathLineToVerticalRelative(0); 
$draw->pathLineToHorizontalAbsolute(250); 
$draw->pathFinish(); 
  
// Render the draw commands 
$imagick->drawImage($draw); 
  
// Show the output 
$imagick->setImageFormat('png'); 
header("Content-Type: image/png"); 
echo $imagick->getImageBlob(); 
?>

输出：

参考： https://www.php.net/manual/en/imagickdraw.pathclose.php

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注：本文由纯净天空筛选整理自gurrrung大神的英文原创作品 PHP | ImagickDraw pathClose() 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。