PHP | imagickdraw setStrokeMiterLimit()函数

ImagickDraw::setStrokeMiterLimit()函数是PHP中的一个内置函数，用于指定笔划的斜接限制。当两条线段以锐角相交并且已为“lineJoin”指定斜接连接时，斜接可能会延伸到远远超出描边路径的线的厚度。 miterLimit' 对斜接长度与'lineWidth' 的比率施加了限制。

句法：

bool ImagickDraw::setStrokeMiterLimit( $miterlimit )

参数：此函数接受单个参数$miterlimit ，该参数用于将斜接限制的值保存为整数类型。

返回值：此函数不返回任何值。

下面的程序说明了PHP中的ImagickDraw::setStrokeMiterLimit()函数：

方案一：

setStrokeOpacity(1);
  
// Set the Stroke Color
$draw->setStrokeColor('Black');
  
// Set the Stroke Opacity
$draw->setStrokeOpacity(0.6);
  
// Set the Stroke Width  
$draw->setStrokeWidth(4);
  
// Set the image filled color 
$draw->setFillColor('lightgreen');
      
// Set the Stroke Miter Limit 
$draw->setStrokeMiterLimit(40 * 12);
$points = [
        ['x' => 50 * 6, 'y' => 10 * 5],
        ['x' => 20 * 7, 'y' => 30 * 5], 
        ['x' => 60 * 8, 'y' => 50 * 5], 
        ['x' => 70 * 3, 'y' => 15 * 5],
    ];
  
// Draw the polygon 
$draw->polygon($points);
  
// Create new Imagick object 
$image = new \Imagick();
  
// Set the dimensions of the image
$image->newImage(500, 300, '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：

方案二：

setStrokeWidth(5);
   
// Set the Stroke Miter Limit
$draw->setStrokeMiterLimit(50 * 15);
   
// Set the Stroke Color
$draw->setStrokeColor('black');
   
// Set the image filled color
$draw->setFillColor('red');
$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');
   
// Set the translation points
$draw->translate(10, 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);
   
// Set the image filled color
$draw->setFillColor('blue');
   
// Set the translation points
$draw->translate(10, 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);
   
// Set the image filled color
$draw->setFillColor('yellow');
   
// Set the translation points
$draw->translate(10, 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 dimensions of the image
$image->newImage(400, 400, '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：

参考： http: PHP。 PHP

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