GoLang ImagickPixelIterator::setIteratorRow

request it (245)
GoLang replacement for PHP's ImagickPixelIterator::setIteratorRow [edit | history]



Do you know a GoLang replacement for PHP's ImagickPixelIterator::setIteratorRow? Write it!

PHP ImagickPixelIterator::setIteratorRow

PHP original manual for ImagickPixelIterator::setIteratorRow [ show | php.net ]

ImagickPixelIterator::setIteratorRow

(PECL imagick 2.0.0)

ImagickPixelIterator::setIteratorRow — Set the pixel iterator row

Description

bool ImagickPixelIterator::setIteratorRow ( int $row )
Warning

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

Set the pixel iterator row.

Parameters

row

Return Values

Returns TRUE on success.

Examples

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;
}

?>