ImagickPixelIterator::setIteratorRow

(PECL imagick 2.0.0)
Set the pixel iterator row
bool ImagickPixelIterator::setIteratorRow ( int $row )

Set the pixel iterator row.

Parameters:
row

Set the pixel iterator row.

Returns:

Returns TRUE on success.

This function is currently not documented; only its argument list is available.

Examples:
ImagickPixelIterator::setIteratorRow()
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<?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;
}
 
?>
doc_php
2025-01-10 15:47:30
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