PHP | imagickdraw pathclose()函数

ImagickDraw::pathClose()函数是PHP中的一个内置函数，用于向当前路径添加路径元素，通过绘制一条直线来关闭当前子路径。简而言之，它用于将笔划完全应用于所有边缘。

句法：

bool ImagickDraw::pathClose( void )

参数：此函数不接受任何参数。

返回值：此函数在成功时返回 TRUE。

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

方案一：

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：

方案二：

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