Php/docs/imagickpixeliterator.clear
ImagickPixelIterator::clear
(PECL imagick 2, PECL imagick 3)
ImagickPixelIterator::clear — Clear resources associated with a PixelIterator
说明
public ImagickPixelIterator::clear ( ) : bool
Warning 本函数还未编写文档，仅有参数列表。
Clear resources associated with a PixelIterator.
返回值
成功时返回 true。
范例
Example #1 ImagickPixelIterator::clear()
<?phpfunction clear($imagePath) { $imagick = new \Imagick(realpath($imagePath)); $imageIterator = $imagick->getPixelRegionIterator(100, 100, 250, 200); /* Loop through pixel rows */ foreach ($imageIterator as $pixels) { /** @var $pixel \ImagickPixel */ /* Loop through the pixels in the row (columns) */ foreach ($pixels as $column => $pixel) { if ($column % 2) { /* Paint every second pixel black*/ $pixel->setColor("rgba(0, 0, 0, 0)"); } } /* Sync the iterator, this is important to do on each iteration */ $imageIterator->syncIterator(); } $imageIterator->clear(); header("Content-Type: image/jpg"); echo $imagick;}?>
