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  • ImagickPixelIterator::setIteratorRow()

    (PECL imagick 2.0.0)

    Set the pixel iterator row

    说明

    ImagickPixelIterator::setIteratorRow(int $row): bool
    Warning

    本函数还未编写文档,仅有参数列表。

    Set the pixel iterator row.

    参数

    $row

    返回值

    成功时返回TRUE

    范例

    Example #1 ImagickPixelIterator::setIteratorRow()

    <?php
    function setIteratorRow($imagePath) {
        $imagick = new \Imagick(realpath($imagePath));
        $imageIterator = $imagick->getPixelRegionIterator(200, 100, 200, 200);
        for ($x = 0; $x < 20; $x++) {        
            $imageIterator->setIteratorRow($x * 5);
            $pixels = $imageIterator->getCurrentIteratorRow();
            /* Loop through the pixels in the row (columns) */
            foreach ($pixels as $pixel) {
                /** @var $pixel \ImagickPixel */
                /* 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();
        }
        header("Content-Type: image/jpg");
        echo $imagick;
    }
    ?>